setup project

ent/client.go

@@ -0,0 +1,341 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+	"reflect"
+
+	"leafdev.top/leaf/rag/ent/migrate"
+
+	"leafdev.top/leaf/rag/ent/library"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql"
+)
+
+// Client is the client that holds all ent builders.
+type Client struct {
+	config
+	// Schema is the client for creating, migrating and dropping schema.
+	Schema *migrate.Schema
+	// Library is the client for interacting with the Library builders.
+	Library *LibraryClient
+}
+
+// NewClient creates a new client configured with the given options.
+func NewClient(opts ...Option) *Client {
+	client := &Client{config: newConfig(opts...)}
+	client.init()
+	return client
+}
+
+func (c *Client) init() {
+	c.Schema = migrate.NewSchema(c.driver)
+	c.Library = NewLibraryClient(c.config)
+}
+
+type (
+	// config is the configuration for the client and its builder.
+	config struct {
+		// driver used for executing database requests.
+		driver dialect.Driver
+		// debug enable a debug logging.
+		debug bool
+		// log used for logging on debug mode.
+		log func(...any)
+		// hooks to execute on mutations.
+		hooks *hooks
+		// interceptors to execute on queries.
+		inters *inters
+	}
+	// Option function to configure the client.
+	Option func(*config)
+)
+
+// newConfig creates a new config for the client.
+func newConfig(opts ...Option) config {
+	cfg := config{log: log.Println, hooks: &hooks{}, inters: &inters{}}
+	cfg.options(opts...)
+	return cfg
+}
+
+// options applies the options on the config object.
+func (c *config) options(opts ...Option) {
+	for _, opt := range opts {
+		opt(c)
+	}
+	if c.debug {
+		c.driver = dialect.Debug(c.driver, c.log)
+	}
+}
+
+// Debug enables debug logging on the ent.Driver.
+func Debug() Option {
+	return func(c *config) {
+		c.debug = true
+	}
+}
+
+// Log sets the logging function for debug mode.
+func Log(fn func(...any)) Option {
+	return func(c *config) {
+		c.log = fn
+	}
+}
+
+// Driver configures the client driver.
+func Driver(driver dialect.Driver) Option {
+	return func(c *config) {
+		c.driver = driver
+	}
+}
+
+// Open opens a database/sql.DB specified by the driver name and
+// the data source name, and returns a new client attached to it.
+// Optional parameters can be added for configuring the client.
+func Open(driverName, dataSourceName string, options ...Option) (*Client, error) {
+	switch driverName {
+	case dialect.MySQL, dialect.Postgres, dialect.SQLite:
+		drv, err := sql.Open(driverName, dataSourceName)
+		if err != nil {
+			return nil, err
+		}
+		return NewClient(append(options, Driver(drv))...), nil
+	default:
+		return nil, fmt.Errorf("unsupported driver: %q", driverName)
+	}
+}
+
+// ErrTxStarted is returned when trying to start a new transaction from a transactional client.
+var ErrTxStarted = errors.New("ent: cannot start a transaction within a transaction")
+
+// Tx returns a new transactional client. The provided context
+// is used until the transaction is committed or rolled back.
+func (c *Client) Tx(ctx context.Context) (*Tx, error) {
+	if _, ok := c.driver.(*txDriver); ok {
+		return nil, ErrTxStarted
+	}
+	tx, err := newTx(ctx, c.driver)
+	if err != nil {
+		return nil, fmt.Errorf("ent: starting a transaction: %w", err)
+	}
+	cfg := c.config
+	cfg.driver = tx
+	return &Tx{
+		ctx:     ctx,
+		config:  cfg,
+		Library: NewLibraryClient(cfg),
+	}, nil
+}
+
+// BeginTx returns a transactional client with specified options.
+func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
+	if _, ok := c.driver.(*txDriver); ok {
+		return nil, errors.New("ent: cannot start a transaction within a transaction")
+	}
+	tx, err := c.driver.(interface {
+		BeginTx(context.Context, *sql.TxOptions) (dialect.Tx, error)
+	}).BeginTx(ctx, opts)
+	if err != nil {
+		return nil, fmt.Errorf("ent: starting a transaction: %w", err)
+	}
+	cfg := c.config
+	cfg.driver = &txDriver{tx: tx, drv: c.driver}
+	return &Tx{
+		ctx:     ctx,
+		config:  cfg,
+		Library: NewLibraryClient(cfg),
+	}, nil
+}
+
+// Debug returns a new debug-client. It's used to get verbose logging on specific operations.
+//
+//	client.Debug().
+//		Library.
+//		Query().
+//		Count(ctx)
+func (c *Client) Debug() *Client {
+	if c.debug {
+		return c
+	}
+	cfg := c.config
+	cfg.driver = dialect.Debug(c.driver, c.log)
+	client := &Client{config: cfg}
+	client.init()
+	return client
+}
+
+// Close closes the database connection and prevents new queries from starting.
+func (c *Client) Close() error {
+	return c.driver.Close()
+}
+
+// Use adds the mutation hooks to all the entity clients.
+// In order to add hooks to a specific client, call: `client.Node.Use(...)`.
+func (c *Client) Use(hooks ...Hook) {
+	c.Library.Use(hooks...)
+}
+
+// Intercept adds the query interceptors to all the entity clients.
+// In order to add interceptors to a specific client, call: `client.Node.Intercept(...)`.
+func (c *Client) Intercept(interceptors ...Interceptor) {
+	c.Library.Intercept(interceptors...)
+}
+
+// Mutate implements the ent.Mutator interface.
+func (c *Client) Mutate(ctx context.Context, m Mutation) (Value, error) {
+	switch m := m.(type) {
+	case *LibraryMutation:
+		return c.Library.mutate(ctx, m)
+	default:
+		return nil, fmt.Errorf("ent: unknown mutation type %T", m)
+	}
+}
+
+// LibraryClient is a client for the Library schema.
+type LibraryClient struct {
+	config
+}
+
+// NewLibraryClient returns a client for the Library from the given config.
+func NewLibraryClient(c config) *LibraryClient {
+	return &LibraryClient{config: c}
+}
+
+// Use adds a list of mutation hooks to the hooks stack.
+// A call to `Use(f, g, h)` equals to `library.Hooks(f(g(h())))`.
+func (c *LibraryClient) Use(hooks ...Hook) {
+	c.hooks.Library = append(c.hooks.Library, hooks...)
+}
+
+// Intercept adds a list of query interceptors to the interceptors stack.
+// A call to `Intercept(f, g, h)` equals to `library.Intercept(f(g(h())))`.
+func (c *LibraryClient) Intercept(interceptors ...Interceptor) {
+	c.inters.Library = append(c.inters.Library, interceptors...)
+}
+
+// Create returns a builder for creating a Library entity.
+func (c *LibraryClient) Create() *LibraryCreate {
+	mutation := newLibraryMutation(c.config, OpCreate)
+	return &LibraryCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// CreateBulk returns a builder for creating a bulk of Library entities.
+func (c *LibraryClient) CreateBulk(builders ...*LibraryCreate) *LibraryCreateBulk {
+	return &LibraryCreateBulk{config: c.config, builders: builders}
+}
+
+// MapCreateBulk creates a bulk creation builder from the given slice. For each item in the slice, the function creates
+// a builder and applies setFunc on it.
+func (c *LibraryClient) MapCreateBulk(slice any, setFunc func(*LibraryCreate, int)) *LibraryCreateBulk {
+	rv := reflect.ValueOf(slice)
+	if rv.Kind() != reflect.Slice {
+		return &LibraryCreateBulk{err: fmt.Errorf("calling to LibraryClient.MapCreateBulk with wrong type %T, need slice", slice)}
+	}
+	builders := make([]*LibraryCreate, rv.Len())
+	for i := 0; i < rv.Len(); i++ {
+		builders[i] = c.Create()
+		setFunc(builders[i], i)
+	}
+	return &LibraryCreateBulk{config: c.config, builders: builders}
+}
+
+// Update returns an update builder for Library.
+func (c *LibraryClient) Update() *LibraryUpdate {
+	mutation := newLibraryMutation(c.config, OpUpdate)
+	return &LibraryUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOne returns an update builder for the given entity.
+func (c *LibraryClient) UpdateOne(l *Library) *LibraryUpdateOne {
+	mutation := newLibraryMutation(c.config, OpUpdateOne, withLibrary(l))
+	return &LibraryUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOneID returns an update builder for the given id.
+func (c *LibraryClient) UpdateOneID(id int) *LibraryUpdateOne {
+	mutation := newLibraryMutation(c.config, OpUpdateOne, withLibraryID(id))
+	return &LibraryUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// Delete returns a delete builder for Library.
+func (c *LibraryClient) Delete() *LibraryDelete {
+	mutation := newLibraryMutation(c.config, OpDelete)
+	return &LibraryDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// DeleteOne returns a builder for deleting the given entity.
+func (c *LibraryClient) DeleteOne(l *Library) *LibraryDeleteOne {
+	return c.DeleteOneID(l.ID)
+}
+
+// DeleteOneID returns a builder for deleting the given entity by its id.
+func (c *LibraryClient) DeleteOneID(id int) *LibraryDeleteOne {
+	builder := c.Delete().Where(library.ID(id))
+	builder.mutation.id = &id
+	builder.mutation.op = OpDeleteOne
+	return &LibraryDeleteOne{builder}
+}
+
+// Query returns a query builder for Library.
+func (c *LibraryClient) Query() *LibraryQuery {
+	return &LibraryQuery{
+		config: c.config,
+		ctx:    &QueryContext{Type: TypeLibrary},
+		inters: c.Interceptors(),
+	}
+}
+
+// Get returns a Library entity by its id.
+func (c *LibraryClient) Get(ctx context.Context, id int) (*Library, error) {
+	return c.Query().Where(library.ID(id)).Only(ctx)
+}
+
+// GetX is like Get, but panics if an error occurs.
+func (c *LibraryClient) GetX(ctx context.Context, id int) *Library {
+	obj, err := c.Get(ctx, id)
+	if err != nil {
+		panic(err)
+	}
+	return obj
+}
+
+// Hooks returns the client hooks.
+func (c *LibraryClient) Hooks() []Hook {
+	return c.hooks.Library
+}
+
+// Interceptors returns the client interceptors.
+func (c *LibraryClient) Interceptors() []Interceptor {
+	return c.inters.Library
+}
+
+func (c *LibraryClient) mutate(ctx context.Context, m *LibraryMutation) (Value, error) {
+	switch m.Op() {
+	case OpCreate:
+		return (&LibraryCreate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdate:
+		return (&LibraryUpdate{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpUpdateOne:
+		return (&LibraryUpdateOne{config: c.config, hooks: c.Hooks(), mutation: m}).Save(ctx)
+	case OpDelete, OpDeleteOne:
+		return (&LibraryDelete{config: c.config, hooks: c.Hooks(), mutation: m}).Exec(ctx)
+	default:
+		return nil, fmt.Errorf("ent: unknown Library mutation op: %q", m.Op())
+	}
+}
+
+// hooks and interceptors per client, for fast access.
+type (
+	hooks struct {
+		Library []ent.Hook
+	}
+	inters struct {
+		Library []ent.Interceptor
+	}
+)

ent/ent.go

@@ -0,0 +1,608 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"leafdev.top/leaf/rag/ent/library"
+	"reflect"
+	"sync"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+// ent aliases to avoid import conflicts in user's code.
+type (
+	Op            = ent.Op
+	Hook          = ent.Hook
+	Value         = ent.Value
+	Query         = ent.Query
+	QueryContext  = ent.QueryContext
+	Querier       = ent.Querier
+	QuerierFunc   = ent.QuerierFunc
+	Interceptor   = ent.Interceptor
+	InterceptFunc = ent.InterceptFunc
+	Traverser     = ent.Traverser
+	TraverseFunc  = ent.TraverseFunc
+	Policy        = ent.Policy
+	Mutator       = ent.Mutator
+	Mutation      = ent.Mutation
+	MutateFunc    = ent.MutateFunc
+)
+
+type clientCtxKey struct{}
+
+// FromContext returns a Client stored inside a context, or nil if there isn't one.
+func FromContext(ctx context.Context) *Client {
+	c, _ := ctx.Value(clientCtxKey{}).(*Client)
+	return c
+}
+
+// NewContext returns a new context with the given Client attached.
+func NewContext(parent context.Context, c *Client) context.Context {
+	return context.WithValue(parent, clientCtxKey{}, c)
+}
+
+type txCtxKey struct{}
+
+// TxFromContext returns a Tx stored inside a context, or nil if there isn't one.
+func TxFromContext(ctx context.Context) *Tx {
+	tx, _ := ctx.Value(txCtxKey{}).(*Tx)
+	return tx
+}
+
+// NewTxContext returns a new context with the given Tx attached.
+func NewTxContext(parent context.Context, tx *Tx) context.Context {
+	return context.WithValue(parent, txCtxKey{}, tx)
+}
+
+// OrderFunc applies an ordering on the sql selector.
+// Deprecated: Use Asc/Desc functions or the package builders instead.
+type OrderFunc func(*sql.Selector)
+
+var (
+	initCheck   sync.Once
+	columnCheck sql.ColumnCheck
+)
+
+// columnChecker checks if the column exists in the given table.
+func checkColumn(table, column string) error {
+	initCheck.Do(func() {
+		columnCheck = sql.NewColumnCheck(map[string]func(string) bool{
+			library.Table: library.ValidColumn,
+		})
+	})
+	return columnCheck(table, column)
+}
+
+// Asc applies the given fields in ASC order.
+func Asc(fields ...string) func(*sql.Selector) {
+	return func(s *sql.Selector) {
+		for _, f := range fields {
+			if err := checkColumn(s.TableName(), f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Asc(s.C(f)))
+		}
+	}
+}
+
+// Desc applies the given fields in DESC order.
+func Desc(fields ...string) func(*sql.Selector) {
+	return func(s *sql.Selector) {
+		for _, f := range fields {
+			if err := checkColumn(s.TableName(), f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Desc(s.C(f)))
+		}
+	}
+}
+
+// AggregateFunc applies an aggregation step on the group-by traversal/selector.
+type AggregateFunc func(*sql.Selector) string
+
+// As is a pseudo aggregation function for renaming another other functions with custom names. For example:
+//
+//	GroupBy(field1, field2).
+//	Aggregate(ent.As(ent.Sum(field1), "sum_field1"), (ent.As(ent.Sum(field2), "sum_field2")).
+//	Scan(ctx, &v)
+func As(fn AggregateFunc, end string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.As(fn(s), end)
+	}
+}
+
+// Count applies the "count" aggregation function on each group.
+func Count() AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.Count("*")
+	}
+}
+
+// Max applies the "max" aggregation function on the given field of each group.
+func Max(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Max(s.C(field))
+	}
+}
+
+// Mean applies the "mean" aggregation function on the given field of each group.
+func Mean(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Avg(s.C(field))
+	}
+}
+
+// Min applies the "min" aggregation function on the given field of each group.
+func Min(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Min(s.C(field))
+	}
+}
+
+// Sum applies the "sum" aggregation function on the given field of each group.
+func Sum(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		if err := checkColumn(s.TableName(), field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Sum(s.C(field))
+	}
+}
+
+// ValidationError returns when validating a field or edge fails.
+type ValidationError struct {
+	Name string // Field or edge name.
+	err  error
+}
+
+// Error implements the error interface.
+func (e *ValidationError) Error() string {
+	return e.err.Error()
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ValidationError) Unwrap() error {
+	return e.err
+}
+
+// IsValidationError returns a boolean indicating whether the error is a validation error.
+func IsValidationError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ValidationError
+	return errors.As(err, &e)
+}
+
+// NotFoundError returns when trying to fetch a specific entity and it was not found in the database.
+type NotFoundError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotFoundError) Error() string {
+	return "ent: " + e.label + " not found"
+}
+
+// IsNotFound returns a boolean indicating whether the error is a not found error.
+func IsNotFound(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotFoundError
+	return errors.As(err, &e)
+}
+
+// MaskNotFound masks not found error.
+func MaskNotFound(err error) error {
+	if IsNotFound(err) {
+		return nil
+	}
+	return err
+}
+
+// NotSingularError returns when trying to fetch a singular entity and more then one was found in the database.
+type NotSingularError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotSingularError) Error() string {
+	return "ent: " + e.label + " not singular"
+}
+
+// IsNotSingular returns a boolean indicating whether the error is a not singular error.
+func IsNotSingular(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotSingularError
+	return errors.As(err, &e)
+}
+
+// NotLoadedError returns when trying to get a node that was not loaded by the query.
+type NotLoadedError struct {
+	edge string
+}
+
+// Error implements the error interface.
+func (e *NotLoadedError) Error() string {
+	return "ent: " + e.edge + " edge was not loaded"
+}
+
+// IsNotLoaded returns a boolean indicating whether the error is a not loaded error.
+func IsNotLoaded(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotLoadedError
+	return errors.As(err, &e)
+}
+
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
+	msg  string
+	wrap error
+}
+
+// Error implements the error interface.
+func (e ConstraintError) Error() string {
+	return "ent: constraint failed: " + e.msg
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ConstraintError) Unwrap() error {
+	return e.wrap
+}
+
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ConstraintError
+	return errors.As(err, &e)
+}
+
+// selector embedded by the different Select/GroupBy builders.
+type selector struct {
+	label string
+	flds  *[]string
+	fns   []AggregateFunc
+	scan  func(context.Context, any) error
+}
+
+// ScanX is like Scan, but panics if an error occurs.
+func (s *selector) ScanX(ctx context.Context, v any) {
+	if err := s.scan(ctx, v); err != nil {
+		panic(err)
+	}
+}
+
+// Strings returns list of strings from a selector. It is only allowed when selecting one field.
+func (s *selector) Strings(ctx context.Context) ([]string, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Strings is not achievable when selecting more than 1 field")
+	}
+	var v []string
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// StringsX is like Strings, but panics if an error occurs.
+func (s *selector) StringsX(ctx context.Context) []string {
+	v, err := s.Strings(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// String returns a single string from a selector. It is only allowed when selecting one field.
+func (s *selector) String(ctx context.Context) (_ string, err error) {
+	var v []string
+	if v, err = s.Strings(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Strings returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// StringX is like String, but panics if an error occurs.
+func (s *selector) StringX(ctx context.Context) string {
+	v, err := s.String(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Ints returns list of ints from a selector. It is only allowed when selecting one field.
+func (s *selector) Ints(ctx context.Context) ([]int, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Ints is not achievable when selecting more than 1 field")
+	}
+	var v []int
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// IntsX is like Ints, but panics if an error occurs.
+func (s *selector) IntsX(ctx context.Context) []int {
+	v, err := s.Ints(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Int returns a single int from a selector. It is only allowed when selecting one field.
+func (s *selector) Int(ctx context.Context) (_ int, err error) {
+	var v []int
+	if v, err = s.Ints(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Ints returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// IntX is like Int, but panics if an error occurs.
+func (s *selector) IntX(ctx context.Context) int {
+	v, err := s.Int(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64s returns list of float64s from a selector. It is only allowed when selecting one field.
+func (s *selector) Float64s(ctx context.Context) ([]float64, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Float64s is not achievable when selecting more than 1 field")
+	}
+	var v []float64
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// Float64sX is like Float64s, but panics if an error occurs.
+func (s *selector) Float64sX(ctx context.Context) []float64 {
+	v, err := s.Float64s(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64 returns a single float64 from a selector. It is only allowed when selecting one field.
+func (s *selector) Float64(ctx context.Context) (_ float64, err error) {
+	var v []float64
+	if v, err = s.Float64s(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Float64s returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// Float64X is like Float64, but panics if an error occurs.
+func (s *selector) Float64X(ctx context.Context) float64 {
+	v, err := s.Float64(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bools returns list of bools from a selector. It is only allowed when selecting one field.
+func (s *selector) Bools(ctx context.Context) ([]bool, error) {
+	if len(*s.flds) > 1 {
+		return nil, errors.New("ent: Bools is not achievable when selecting more than 1 field")
+	}
+	var v []bool
+	if err := s.scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// BoolsX is like Bools, but panics if an error occurs.
+func (s *selector) BoolsX(ctx context.Context) []bool {
+	v, err := s.Bools(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bool returns a single bool from a selector. It is only allowed when selecting one field.
+func (s *selector) Bool(ctx context.Context) (_ bool, err error) {
+	var v []bool
+	if v, err = s.Bools(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{s.label}
+	default:
+		err = fmt.Errorf("ent: Bools returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// BoolX is like Bool, but panics if an error occurs.
+func (s *selector) BoolX(ctx context.Context) bool {
+	v, err := s.Bool(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// withHooks invokes the builder operation with the given hooks, if any.
+func withHooks[V Value, M any, PM interface {
+	*M
+	Mutation
+}](ctx context.Context, exec func(context.Context) (V, error), mutation PM, hooks []Hook) (value V, err error) {
+	if len(hooks) == 0 {
+		return exec(ctx)
+	}
+	var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+		mutationT, ok := any(m).(PM)
+		if !ok {
+			return nil, fmt.Errorf("unexpected mutation type %T", m)
+		}
+		// Set the mutation to the builder.
+		*mutation = *mutationT
+		return exec(ctx)
+	})
+	for i := len(hooks) - 1; i >= 0; i-- {
+		if hooks[i] == nil {
+			return value, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
+		}
+		mut = hooks[i](mut)
+	}
+	v, err := mut.Mutate(ctx, mutation)
+	if err != nil {
+		return value, err
+	}
+	nv, ok := v.(V)
+	if !ok {
+		return value, fmt.Errorf("unexpected node type %T returned from %T", v, mutation)
+	}
+	return nv, nil
+}
+
+// setContextOp returns a new context with the given QueryContext attached (including its op) in case it does not exist.
+func setContextOp(ctx context.Context, qc *QueryContext, op string) context.Context {
+	if ent.QueryFromContext(ctx) == nil {
+		qc.Op = op
+		ctx = ent.NewQueryContext(ctx, qc)
+	}
+	return ctx
+}
+
+func querierAll[V Value, Q interface {
+	sqlAll(context.Context, ...queryHook) (V, error)
+}]() Querier {
+	return QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		return query.sqlAll(ctx)
+	})
+}
+
+func querierCount[Q interface {
+	sqlCount(context.Context) (int, error)
+}]() Querier {
+	return QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		return query.sqlCount(ctx)
+	})
+}
+
+func withInterceptors[V Value](ctx context.Context, q Query, qr Querier, inters []Interceptor) (v V, err error) {
+	for i := len(inters) - 1; i >= 0; i-- {
+		qr = inters[i].Intercept(qr)
+	}
+	rv, err := qr.Query(ctx, q)
+	if err != nil {
+		return v, err
+	}
+	vt, ok := rv.(V)
+	if !ok {
+		return v, fmt.Errorf("unexpected type %T returned from %T. expected type: %T", vt, q, v)
+	}
+	return vt, nil
+}
+
+func scanWithInterceptors[Q1 ent.Query, Q2 interface {
+	sqlScan(context.Context, Q1, any) error
+}](ctx context.Context, rootQuery Q1, selectOrGroup Q2, inters []Interceptor, v any) error {
+	rv := reflect.ValueOf(v)
+	var qr Querier = QuerierFunc(func(ctx context.Context, q Query) (Value, error) {
+		query, ok := q.(Q1)
+		if !ok {
+			return nil, fmt.Errorf("unexpected query type %T", q)
+		}
+		if err := selectOrGroup.sqlScan(ctx, query, v); err != nil {
+			return nil, err
+		}
+		if k := rv.Kind(); k == reflect.Pointer && rv.Elem().CanInterface() {
+			return rv.Elem().Interface(), nil
+		}
+		return v, nil
+	})
+	for i := len(inters) - 1; i >= 0; i-- {
+		qr = inters[i].Intercept(qr)
+	}
+	vv, err := qr.Query(ctx, rootQuery)
+	if err != nil {
+		return err
+	}
+	switch rv2 := reflect.ValueOf(vv); {
+	case rv.IsNil(), rv2.IsNil(), rv.Kind() != reflect.Pointer:
+	case rv.Type() == rv2.Type():
+		rv.Elem().Set(rv2.Elem())
+	case rv.Elem().Type() == rv2.Type():
+		rv.Elem().Set(rv2)
+	}
+	return nil
+}
+
+// queryHook describes an internal hook for the different sqlAll methods.
+type queryHook func(context.Context, *sqlgraph.QuerySpec)

ent/enttest/enttest.go

@@ -0,0 +1,84 @@
+// Code generated by ent, DO NOT EDIT.
+
+package enttest
+
+import (
+	"context"
+	"leafdev.top/leaf/rag/ent"
+	// required by schema hooks.
+	_ "leafdev.top/leaf/rag/ent/runtime"
+
+	"leafdev.top/leaf/rag/ent/migrate"
+
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+type (
+	// TestingT is the interface that is shared between
+	// testing.T and testing.B and used by enttest.
+	TestingT interface {
+		FailNow()
+		Error(...any)
+	}
+
+	// Option configures client creation.
+	Option func(*options)
+
+	options struct {
+		opts        []ent.Option
+		migrateOpts []schema.MigrateOption
+	}
+)
+
+// WithOptions forwards options to client creation.
+func WithOptions(opts ...ent.Option) Option {
+	return func(o *options) {
+		o.opts = append(o.opts, opts...)
+	}
+}
+
+// WithMigrateOptions forwards options to auto migration.
+func WithMigrateOptions(opts ...schema.MigrateOption) Option {
+	return func(o *options) {
+		o.migrateOpts = append(o.migrateOpts, opts...)
+	}
+}
+
+func newOptions(opts []Option) *options {
+	o := &options{}
+	for _, opt := range opts {
+		opt(o)
+	}
+	return o
+}
+
+// Open calls ent.Open and auto-run migration.
+func Open(t TestingT, driverName, dataSourceName string, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c, err := ent.Open(driverName, dataSourceName, o.opts...)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	migrateSchema(t, c, o)
+	return c
+}
+
+// NewClient calls ent.NewClient and auto-run migration.
+func NewClient(t TestingT, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c := ent.NewClient(o.opts...)
+	migrateSchema(t, c, o)
+	return c
+}
+func migrateSchema(t TestingT, c *ent.Client, o *options) {
+	tables, err := schema.CopyTables(migrate.Tables)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	if err := migrate.Create(context.Background(), c.Schema, tables, o.migrateOpts...); err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+}

ent/generate.go

@@ -0,0 +1,3 @@
+package ent
+
+//go:generate go run -mod=mod entgo.io/ent/cmd/ent generate --feature sql/versioned-migration ./schema

ent/hook/hook.go

@@ -0,0 +1,198 @@
+// Code generated by ent, DO NOT EDIT.
+
+package hook
+
+import (
+	"context"
+	"fmt"
+	"leafdev.top/leaf/rag/ent"
+)
+
+// The LibraryFunc type is an adapter to allow the use of ordinary
+// function as Library mutator.
+type LibraryFunc func(context.Context, *ent.LibraryMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f LibraryFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.LibraryMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.LibraryMutation", m)
+}
+
+// Condition is a hook condition function.
+type Condition func(context.Context, ent.Mutation) bool
+
+// And groups conditions with the AND operator.
+func And(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if !first(ctx, m) || !second(ctx, m) {
+			return false
+		}
+		for _, cond := range rest {
+			if !cond(ctx, m) {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// Or groups conditions with the OR operator.
+func Or(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if first(ctx, m) || second(ctx, m) {
+			return true
+		}
+		for _, cond := range rest {
+			if cond(ctx, m) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+// Not negates a given condition.
+func Not(cond Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		return !cond(ctx, m)
+	}
+}
+
+// HasOp is a condition testing mutation operation.
+func HasOp(op ent.Op) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		return m.Op().Is(op)
+	}
+}
+
+// HasAddedFields is a condition validating `.AddedField` on fields.
+func HasAddedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.AddedField(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.AddedField(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasClearedFields is a condition validating `.FieldCleared` on fields.
+func HasClearedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if exists := m.FieldCleared(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if exists := m.FieldCleared(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasFields is a condition validating `.Field` on fields.
+func HasFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.Field(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.Field(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// If executes the given hook under condition.
+//
+//	hook.If(ComputeAverage, And(HasFields(...), HasAddedFields(...)))
+func If(hk ent.Hook, cond Condition) ent.Hook {
+	return func(next ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+			if cond(ctx, m) {
+				return hk(next).Mutate(ctx, m)
+			}
+			return next.Mutate(ctx, m)
+		})
+	}
+}
+
+// On executes the given hook only for the given operation.
+//
+//	hook.On(Log, ent.Delete|ent.Create)
+func On(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, HasOp(op))
+}
+
+// Unless skips the given hook only for the given operation.
+//
+//	hook.Unless(Log, ent.Update|ent.UpdateOne)
+func Unless(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, Not(HasOp(op)))
+}
+
+// FixedError is a hook returning a fixed error.
+func FixedError(err error) ent.Hook {
+	return func(ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(context.Context, ent.Mutation) (ent.Value, error) {
+			return nil, err
+		})
+	}
+}
+
+// Reject returns a hook that rejects all operations that match op.
+//
+//	func (T) Hooks() []ent.Hook {
+//		return []ent.Hook{
+//			Reject(ent.Delete|ent.Update),
+//		}
+//	}
+func Reject(op ent.Op) ent.Hook {
+	hk := FixedError(fmt.Errorf("%s operation is not allowed", op))
+	return On(hk, op)
+}
+
+// Chain acts as a list of hooks and is effectively immutable.
+// Once created, it will always hold the same set of hooks in the same order.
+type Chain struct {
+	hooks []ent.Hook
+}
+
+// NewChain creates a new chain of hooks.
+func NewChain(hooks ...ent.Hook) Chain {
+	return Chain{append([]ent.Hook(nil), hooks...)}
+}
+
+// Hook chains the list of hooks and returns the final hook.
+func (c Chain) Hook() ent.Hook {
+	return func(mutator ent.Mutator) ent.Mutator {
+		for i := len(c.hooks) - 1; i >= 0; i-- {
+			mutator = c.hooks[i](mutator)
+		}
+		return mutator
+	}
+}
+
+// Append extends a chain, adding the specified hook
+// as the last ones in the mutation flow.
+func (c Chain) Append(hooks ...ent.Hook) Chain {
+	newHooks := make([]ent.Hook, 0, len(c.hooks)+len(hooks))
+	newHooks = append(newHooks, c.hooks...)
+	newHooks = append(newHooks, hooks...)
+	return Chain{newHooks}
+}
+
+// Extend extends a chain, adding the specified chain
+// as the last ones in the mutation flow.
+func (c Chain) Extend(chain Chain) Chain {
+	return c.Append(chain.hooks...)
+}

ent/library.go

@@ -0,0 +1,139 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"leafdev.top/leaf/rag/ent/library"
+	"strings"
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+)
+
+// Library is the model entity for the Library schema.
+type Library struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// Name holds the value of the "name" field.
+	Name string `json:"name,omitempty"`
+	// UserID holds the value of the "user_id" field.
+	UserID uint64 `json:"user_id,omitempty"`
+	// CreatedAt holds the value of the "created_at" field.
+	CreatedAt time.Time `json:"created_at,omitempty"`
+	// UpdatedAt holds the value of the "updated_at" field.
+	UpdatedAt    time.Time `json:"updated_at,omitempty"`
+	selectValues sql.SelectValues
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Library) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case library.FieldID, library.FieldUserID:
+			values[i] = new(sql.NullInt64)
+		case library.FieldName:
+			values[i] = new(sql.NullString)
+		case library.FieldCreatedAt, library.FieldUpdatedAt:
+			values[i] = new(sql.NullTime)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Library fields.
+func (l *Library) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case library.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			l.ID = int(value.Int64)
+		case library.FieldName:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field name", values[i])
+			} else if value.Valid {
+				l.Name = value.String
+			}
+		case library.FieldUserID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field user_id", values[i])
+			} else if value.Valid {
+				l.UserID = uint64(value.Int64)
+			}
+		case library.FieldCreatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field created_at", values[i])
+			} else if value.Valid {
+				l.CreatedAt = value.Time
+			}
+		case library.FieldUpdatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field updated_at", values[i])
+			} else if value.Valid {
+				l.UpdatedAt = value.Time
+			}
+		default:
+			l.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Library.
+// This includes values selected through modifiers, order, etc.
+func (l *Library) Value(name string) (ent.Value, error) {
+	return l.selectValues.Get(name)
+}
+
+// Update returns a builder for updating this Library.
+// Note that you need to call Library.Unwrap() before calling this method if this Library
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (l *Library) Update() *LibraryUpdateOne {
+	return NewLibraryClient(l.config).UpdateOne(l)
+}
+
+// Unwrap unwraps the Library entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (l *Library) Unwrap() *Library {
+	_tx, ok := l.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Library is not a transactional entity")
+	}
+	l.config.driver = _tx.drv
+	return l
+}
+
+// String implements the fmt.Stringer.
+func (l *Library) String() string {
+	var builder strings.Builder
+	builder.WriteString("Library(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", l.ID))
+	builder.WriteString("name=")
+	builder.WriteString(l.Name)
+	builder.WriteString(", ")
+	builder.WriteString("user_id=")
+	builder.WriteString(fmt.Sprintf("%v", l.UserID))
+	builder.WriteString(", ")
+	builder.WriteString("created_at=")
+	builder.WriteString(l.CreatedAt.Format(time.ANSIC))
+	builder.WriteString(", ")
+	builder.WriteString("updated_at=")
+	builder.WriteString(l.UpdatedAt.Format(time.ANSIC))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Libraries is a parsable slice of Library.
+type Libraries []*Library

ent/library/library.go

@@ -0,0 +1,80 @@
+// Code generated by ent, DO NOT EDIT.
+
+package library
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+)
+
+const (
+	// Label holds the string label denoting the library type in the database.
+	Label = "library"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldName holds the string denoting the name field in the database.
+	FieldName = "name"
+	// FieldUserID holds the string denoting the user_id field in the database.
+	FieldUserID = "user_id"
+	// FieldCreatedAt holds the string denoting the created_at field in the database.
+	FieldCreatedAt = "created_at"
+	// FieldUpdatedAt holds the string denoting the updated_at field in the database.
+	FieldUpdatedAt = "updated_at"
+	// Table holds the table name of the library in the database.
+	Table = "libraries"
+)
+
+// Columns holds all SQL columns for library fields.
+var Columns = []string{
+	FieldID,
+	FieldName,
+	FieldUserID,
+	FieldCreatedAt,
+	FieldUpdatedAt,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// DefaultCreatedAt holds the default value on creation for the "created_at" field.
+	DefaultCreatedAt func() time.Time
+	// DefaultUpdatedAt holds the default value on creation for the "updated_at" field.
+	DefaultUpdatedAt func() time.Time
+)
+
+// OrderOption defines the ordering options for the Library queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByName orders the results by the name field.
+func ByName(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldName, opts...).ToFunc()
+}
+
+// ByUserID orders the results by the user_id field.
+func ByUserID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUserID, opts...).ToFunc()
+}
+
+// ByCreatedAt orders the results by the created_at field.
+func ByCreatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCreatedAt, opts...).ToFunc()
+}
+
+// ByUpdatedAt orders the results by the updated_at field.
+func ByUpdatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUpdatedAt, opts...).ToFunc()
+}

ent/library/where.go

@@ -0,0 +1,275 @@
+// Code generated by ent, DO NOT EDIT.
+
+package library
+
+import (
+	"leafdev.top/leaf/rag/ent/predicate"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int) predicate.Library {
+	return predicate.Library(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int) predicate.Library {
+	return predicate.Library(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int) predicate.Library {
+	return predicate.Library(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int) predicate.Library {
+	return predicate.Library(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int) predicate.Library {
+	return predicate.Library(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int) predicate.Library {
+	return predicate.Library(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int) predicate.Library {
+	return predicate.Library(sql.FieldLTE(FieldID, id))
+}
+
+// Name applies equality check predicate on the "name" field. It's identical to NameEQ.
+func Name(v string) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldName, v))
+}
+
+// UserID applies equality check predicate on the "user_id" field. It's identical to UserIDEQ.
+func UserID(v uint64) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldUserID, v))
+}
+
+// CreatedAt applies equality check predicate on the "created_at" field. It's identical to CreatedAtEQ.
+func CreatedAt(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// UpdatedAt applies equality check predicate on the "updated_at" field. It's identical to UpdatedAtEQ.
+func UpdatedAt(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldUpdatedAt, v))
+}
+
+// NameEQ applies the EQ predicate on the "name" field.
+func NameEQ(v string) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldName, v))
+}
+
+// NameNEQ applies the NEQ predicate on the "name" field.
+func NameNEQ(v string) predicate.Library {
+	return predicate.Library(sql.FieldNEQ(FieldName, v))
+}
+
+// NameIn applies the In predicate on the "name" field.
+func NameIn(vs ...string) predicate.Library {
+	return predicate.Library(sql.FieldIn(FieldName, vs...))
+}
+
+// NameNotIn applies the NotIn predicate on the "name" field.
+func NameNotIn(vs ...string) predicate.Library {
+	return predicate.Library(sql.FieldNotIn(FieldName, vs...))
+}
+
+// NameGT applies the GT predicate on the "name" field.
+func NameGT(v string) predicate.Library {
+	return predicate.Library(sql.FieldGT(FieldName, v))
+}
+
+// NameGTE applies the GTE predicate on the "name" field.
+func NameGTE(v string) predicate.Library {
+	return predicate.Library(sql.FieldGTE(FieldName, v))
+}
+
+// NameLT applies the LT predicate on the "name" field.
+func NameLT(v string) predicate.Library {
+	return predicate.Library(sql.FieldLT(FieldName, v))
+}
+
+// NameLTE applies the LTE predicate on the "name" field.
+func NameLTE(v string) predicate.Library {
+	return predicate.Library(sql.FieldLTE(FieldName, v))
+}
+
+// NameContains applies the Contains predicate on the "name" field.
+func NameContains(v string) predicate.Library {
+	return predicate.Library(sql.FieldContains(FieldName, v))
+}
+
+// NameHasPrefix applies the HasPrefix predicate on the "name" field.
+func NameHasPrefix(v string) predicate.Library {
+	return predicate.Library(sql.FieldHasPrefix(FieldName, v))
+}
+
+// NameHasSuffix applies the HasSuffix predicate on the "name" field.
+func NameHasSuffix(v string) predicate.Library {
+	return predicate.Library(sql.FieldHasSuffix(FieldName, v))
+}
+
+// NameEqualFold applies the EqualFold predicate on the "name" field.
+func NameEqualFold(v string) predicate.Library {
+	return predicate.Library(sql.FieldEqualFold(FieldName, v))
+}
+
+// NameContainsFold applies the ContainsFold predicate on the "name" field.
+func NameContainsFold(v string) predicate.Library {
+	return predicate.Library(sql.FieldContainsFold(FieldName, v))
+}
+
+// UserIDEQ applies the EQ predicate on the "user_id" field.
+func UserIDEQ(v uint64) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldUserID, v))
+}
+
+// UserIDNEQ applies the NEQ predicate on the "user_id" field.
+func UserIDNEQ(v uint64) predicate.Library {
+	return predicate.Library(sql.FieldNEQ(FieldUserID, v))
+}
+
+// UserIDIn applies the In predicate on the "user_id" field.
+func UserIDIn(vs ...uint64) predicate.Library {
+	return predicate.Library(sql.FieldIn(FieldUserID, vs...))
+}
+
+// UserIDNotIn applies the NotIn predicate on the "user_id" field.
+func UserIDNotIn(vs ...uint64) predicate.Library {
+	return predicate.Library(sql.FieldNotIn(FieldUserID, vs...))
+}
+
+// UserIDGT applies the GT predicate on the "user_id" field.
+func UserIDGT(v uint64) predicate.Library {
+	return predicate.Library(sql.FieldGT(FieldUserID, v))
+}
+
+// UserIDGTE applies the GTE predicate on the "user_id" field.
+func UserIDGTE(v uint64) predicate.Library {
+	return predicate.Library(sql.FieldGTE(FieldUserID, v))
+}
+
+// UserIDLT applies the LT predicate on the "user_id" field.
+func UserIDLT(v uint64) predicate.Library {
+	return predicate.Library(sql.FieldLT(FieldUserID, v))
+}
+
+// UserIDLTE applies the LTE predicate on the "user_id" field.
+func UserIDLTE(v uint64) predicate.Library {
+	return predicate.Library(sql.FieldLTE(FieldUserID, v))
+}
+
+// CreatedAtEQ applies the EQ predicate on the "created_at" field.
+func CreatedAtEQ(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtNEQ applies the NEQ predicate on the "created_at" field.
+func CreatedAtNEQ(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldNEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtIn applies the In predicate on the "created_at" field.
+func CreatedAtIn(vs ...time.Time) predicate.Library {
+	return predicate.Library(sql.FieldIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
+func CreatedAtNotIn(vs ...time.Time) predicate.Library {
+	return predicate.Library(sql.FieldNotIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtGT applies the GT predicate on the "created_at" field.
+func CreatedAtGT(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldGT(FieldCreatedAt, v))
+}
+
+// CreatedAtGTE applies the GTE predicate on the "created_at" field.
+func CreatedAtGTE(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldGTE(FieldCreatedAt, v))
+}
+
+// CreatedAtLT applies the LT predicate on the "created_at" field.
+func CreatedAtLT(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldLT(FieldCreatedAt, v))
+}
+
+// CreatedAtLTE applies the LTE predicate on the "created_at" field.
+func CreatedAtLTE(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldLTE(FieldCreatedAt, v))
+}
+
+// UpdatedAtEQ applies the EQ predicate on the "updated_at" field.
+func UpdatedAtEQ(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldEQ(FieldUpdatedAt, v))
+}
+
+// UpdatedAtNEQ applies the NEQ predicate on the "updated_at" field.
+func UpdatedAtNEQ(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldNEQ(FieldUpdatedAt, v))
+}
+
+// UpdatedAtIn applies the In predicate on the "updated_at" field.
+func UpdatedAtIn(vs ...time.Time) predicate.Library {
+	return predicate.Library(sql.FieldIn(FieldUpdatedAt, vs...))
+}
+
+// UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
+func UpdatedAtNotIn(vs ...time.Time) predicate.Library {
+	return predicate.Library(sql.FieldNotIn(FieldUpdatedAt, vs...))
+}
+
+// UpdatedAtGT applies the GT predicate on the "updated_at" field.
+func UpdatedAtGT(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldGT(FieldUpdatedAt, v))
+}
+
+// UpdatedAtGTE applies the GTE predicate on the "updated_at" field.
+func UpdatedAtGTE(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldGTE(FieldUpdatedAt, v))
+}
+
+// UpdatedAtLT applies the LT predicate on the "updated_at" field.
+func UpdatedAtLT(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldLT(FieldUpdatedAt, v))
+}
+
+// UpdatedAtLTE applies the LTE predicate on the "updated_at" field.
+func UpdatedAtLTE(v time.Time) predicate.Library {
+	return predicate.Library(sql.FieldLTE(FieldUpdatedAt, v))
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Library) predicate.Library {
+	return predicate.Library(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Library) predicate.Library {
+	return predicate.Library(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Library) predicate.Library {
+	return predicate.Library(sql.NotPredicates(p))
+}

ent/library_create.go

@@ -0,0 +1,253 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"leafdev.top/leaf/rag/ent/library"
+	"time"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// LibraryCreate is the builder for creating a Library entity.
+type LibraryCreate struct {
+	config
+	mutation *LibraryMutation
+	hooks    []Hook
+}
+
+// SetName sets the "name" field.
+func (lc *LibraryCreate) SetName(s string) *LibraryCreate {
+	lc.mutation.SetName(s)
+	return lc
+}
+
+// SetUserID sets the "user_id" field.
+func (lc *LibraryCreate) SetUserID(u uint64) *LibraryCreate {
+	lc.mutation.SetUserID(u)
+	return lc
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (lc *LibraryCreate) SetCreatedAt(t time.Time) *LibraryCreate {
+	lc.mutation.SetCreatedAt(t)
+	return lc
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (lc *LibraryCreate) SetNillableCreatedAt(t *time.Time) *LibraryCreate {
+	if t != nil {
+		lc.SetCreatedAt(*t)
+	}
+	return lc
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (lc *LibraryCreate) SetUpdatedAt(t time.Time) *LibraryCreate {
+	lc.mutation.SetUpdatedAt(t)
+	return lc
+}
+
+// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
+func (lc *LibraryCreate) SetNillableUpdatedAt(t *time.Time) *LibraryCreate {
+	if t != nil {
+		lc.SetUpdatedAt(*t)
+	}
+	return lc
+}
+
+// Mutation returns the LibraryMutation object of the builder.
+func (lc *LibraryCreate) Mutation() *LibraryMutation {
+	return lc.mutation
+}
+
+// Save creates the Library in the database.
+func (lc *LibraryCreate) Save(ctx context.Context) (*Library, error) {
+	lc.defaults()
+	return withHooks(ctx, lc.sqlSave, lc.mutation, lc.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (lc *LibraryCreate) SaveX(ctx context.Context) *Library {
+	v, err := lc.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (lc *LibraryCreate) Exec(ctx context.Context) error {
+	_, err := lc.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (lc *LibraryCreate) ExecX(ctx context.Context) {
+	if err := lc.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (lc *LibraryCreate) defaults() {
+	if _, ok := lc.mutation.CreatedAt(); !ok {
+		v := library.DefaultCreatedAt()
+		lc.mutation.SetCreatedAt(v)
+	}
+	if _, ok := lc.mutation.UpdatedAt(); !ok {
+		v := library.DefaultUpdatedAt()
+		lc.mutation.SetUpdatedAt(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (lc *LibraryCreate) check() error {
+	if _, ok := lc.mutation.Name(); !ok {
+		return &ValidationError{Name: "name", err: errors.New(`ent: missing required field "Library.name"`)}
+	}
+	if _, ok := lc.mutation.UserID(); !ok {
+		return &ValidationError{Name: "user_id", err: errors.New(`ent: missing required field "Library.user_id"`)}
+	}
+	if _, ok := lc.mutation.CreatedAt(); !ok {
+		return &ValidationError{Name: "created_at", err: errors.New(`ent: missing required field "Library.created_at"`)}
+	}
+	if _, ok := lc.mutation.UpdatedAt(); !ok {
+		return &ValidationError{Name: "updated_at", err: errors.New(`ent: missing required field "Library.updated_at"`)}
+	}
+	return nil
+}
+
+func (lc *LibraryCreate) sqlSave(ctx context.Context) (*Library, error) {
+	if err := lc.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := lc.createSpec()
+	if err := sqlgraph.CreateNode(ctx, lc.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int(id)
+	lc.mutation.id = &_node.ID
+	lc.mutation.done = true
+	return _node, nil
+}
+
+func (lc *LibraryCreate) createSpec() (*Library, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Library{config: lc.config}
+		_spec = sqlgraph.NewCreateSpec(library.Table, sqlgraph.NewFieldSpec(library.FieldID, field.TypeInt))
+	)
+	if value, ok := lc.mutation.Name(); ok {
+		_spec.SetField(library.FieldName, field.TypeString, value)
+		_node.Name = value
+	}
+	if value, ok := lc.mutation.UserID(); ok {
+		_spec.SetField(library.FieldUserID, field.TypeUint64, value)
+		_node.UserID = value
+	}
+	if value, ok := lc.mutation.CreatedAt(); ok {
+		_spec.SetField(library.FieldCreatedAt, field.TypeTime, value)
+		_node.CreatedAt = value
+	}
+	if value, ok := lc.mutation.UpdatedAt(); ok {
+		_spec.SetField(library.FieldUpdatedAt, field.TypeTime, value)
+		_node.UpdatedAt = value
+	}
+	return _node, _spec
+}
+
+// LibraryCreateBulk is the builder for creating many Library entities in bulk.
+type LibraryCreateBulk struct {
+	config
+	err      error
+	builders []*LibraryCreate
+}
+
+// Save creates the Library entities in the database.
+func (lcb *LibraryCreateBulk) Save(ctx context.Context) ([]*Library, error) {
+	if lcb.err != nil {
+		return nil, lcb.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(lcb.builders))
+	nodes := make([]*Library, len(lcb.builders))
+	mutators := make([]Mutator, len(lcb.builders))
+	for i := range lcb.builders {
+		func(i int, root context.Context) {
+			builder := lcb.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*LibraryMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, lcb.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, lcb.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, lcb.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (lcb *LibraryCreateBulk) SaveX(ctx context.Context) []*Library {
+	v, err := lcb.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (lcb *LibraryCreateBulk) Exec(ctx context.Context) error {
+	_, err := lcb.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (lcb *LibraryCreateBulk) ExecX(ctx context.Context) {
+	if err := lcb.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

ent/library_delete.go

@@ -0,0 +1,88 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"leafdev.top/leaf/rag/ent/library"
+	"leafdev.top/leaf/rag/ent/predicate"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// LibraryDelete is the builder for deleting a Library entity.
+type LibraryDelete struct {
+	config
+	hooks    []Hook
+	mutation *LibraryMutation
+}
+
+// Where appends a list predicates to the LibraryDelete builder.
+func (ld *LibraryDelete) Where(ps ...predicate.Library) *LibraryDelete {
+	ld.mutation.Where(ps...)
+	return ld
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (ld *LibraryDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, ld.sqlExec, ld.mutation, ld.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (ld *LibraryDelete) ExecX(ctx context.Context) int {
+	n, err := ld.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (ld *LibraryDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(library.Table, sqlgraph.NewFieldSpec(library.FieldID, field.TypeInt))
+	if ps := ld.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, ld.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	ld.mutation.done = true
+	return affected, err
+}
+
+// LibraryDeleteOne is the builder for deleting a single Library entity.
+type LibraryDeleteOne struct {
+	ld *LibraryDelete
+}
+
+// Where appends a list predicates to the LibraryDelete builder.
+func (ldo *LibraryDeleteOne) Where(ps ...predicate.Library) *LibraryDeleteOne {
+	ldo.ld.mutation.Where(ps...)
+	return ldo
+}
+
+// Exec executes the deletion query.
+func (ldo *LibraryDeleteOne) Exec(ctx context.Context) error {
+	n, err := ldo.ld.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{library.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (ldo *LibraryDeleteOne) ExecX(ctx context.Context) {
+	if err := ldo.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

ent/library_query.go

@@ -0,0 +1,526 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"leafdev.top/leaf/rag/ent/library"
+	"leafdev.top/leaf/rag/ent/predicate"
+	"math"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// LibraryQuery is the builder for querying Library entities.
+type LibraryQuery struct {
+	config
+	ctx        *QueryContext
+	order      []library.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Library
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the LibraryQuery builder.
+func (lq *LibraryQuery) Where(ps ...predicate.Library) *LibraryQuery {
+	lq.predicates = append(lq.predicates, ps...)
+	return lq
+}
+
+// Limit the number of records to be returned by this query.
+func (lq *LibraryQuery) Limit(limit int) *LibraryQuery {
+	lq.ctx.Limit = &limit
+	return lq
+}
+
+// Offset to start from.
+func (lq *LibraryQuery) Offset(offset int) *LibraryQuery {
+	lq.ctx.Offset = &offset
+	return lq
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (lq *LibraryQuery) Unique(unique bool) *LibraryQuery {
+	lq.ctx.Unique = &unique
+	return lq
+}
+
+// Order specifies how the records should be ordered.
+func (lq *LibraryQuery) Order(o ...library.OrderOption) *LibraryQuery {
+	lq.order = append(lq.order, o...)
+	return lq
+}
+
+// First returns the first Library entity from the query.
+// Returns a *NotFoundError when no Library was found.
+func (lq *LibraryQuery) First(ctx context.Context) (*Library, error) {
+	nodes, err := lq.Limit(1).All(setContextOp(ctx, lq.ctx, "First"))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{library.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (lq *LibraryQuery) FirstX(ctx context.Context) *Library {
+	node, err := lq.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Library ID from the query.
+// Returns a *NotFoundError when no Library ID was found.
+func (lq *LibraryQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = lq.Limit(1).IDs(setContextOp(ctx, lq.ctx, "FirstID")); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{library.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (lq *LibraryQuery) FirstIDX(ctx context.Context) int {
+	id, err := lq.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Library entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Library entity is found.
+// Returns a *NotFoundError when no Library entities are found.
+func (lq *LibraryQuery) Only(ctx context.Context) (*Library, error) {
+	nodes, err := lq.Limit(2).All(setContextOp(ctx, lq.ctx, "Only"))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{library.Label}
+	default:
+		return nil, &NotSingularError{library.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (lq *LibraryQuery) OnlyX(ctx context.Context) *Library {
+	node, err := lq.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Library ID in the query.
+// Returns a *NotSingularError when more than one Library ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (lq *LibraryQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = lq.Limit(2).IDs(setContextOp(ctx, lq.ctx, "OnlyID")); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{library.Label}
+	default:
+		err = &NotSingularError{library.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (lq *LibraryQuery) OnlyIDX(ctx context.Context) int {
+	id, err := lq.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Libraries.
+func (lq *LibraryQuery) All(ctx context.Context) ([]*Library, error) {
+	ctx = setContextOp(ctx, lq.ctx, "All")
+	if err := lq.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Library, *LibraryQuery]()
+	return withInterceptors[[]*Library](ctx, lq, qr, lq.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (lq *LibraryQuery) AllX(ctx context.Context) []*Library {
+	nodes, err := lq.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Library IDs.
+func (lq *LibraryQuery) IDs(ctx context.Context) (ids []int, err error) {
+	if lq.ctx.Unique == nil && lq.path != nil {
+		lq.Unique(true)
+	}
+	ctx = setContextOp(ctx, lq.ctx, "IDs")
+	if err = lq.Select(library.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (lq *LibraryQuery) IDsX(ctx context.Context) []int {
+	ids, err := lq.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (lq *LibraryQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, lq.ctx, "Count")
+	if err := lq.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, lq, querierCount[*LibraryQuery](), lq.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (lq *LibraryQuery) CountX(ctx context.Context) int {
+	count, err := lq.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (lq *LibraryQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, lq.ctx, "Exist")
+	switch _, err := lq.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (lq *LibraryQuery) ExistX(ctx context.Context) bool {
+	exist, err := lq.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the LibraryQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (lq *LibraryQuery) Clone() *LibraryQuery {
+	if lq == nil {
+		return nil
+	}
+	return &LibraryQuery{
+		config:     lq.config,
+		ctx:        lq.ctx.Clone(),
+		order:      append([]library.OrderOption{}, lq.order...),
+		inters:     append([]Interceptor{}, lq.inters...),
+		predicates: append([]predicate.Library{}, lq.predicates...),
+		// clone intermediate query.
+		sql:  lq.sql.Clone(),
+		path: lq.path,
+	}
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Name string `json:"name,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Library.Query().
+//		GroupBy(library.FieldName).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (lq *LibraryQuery) GroupBy(field string, fields ...string) *LibraryGroupBy {
+	lq.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &LibraryGroupBy{build: lq}
+	grbuild.flds = &lq.ctx.Fields
+	grbuild.label = library.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Name string `json:"name,omitempty"`
+//	}
+//
+//	client.Library.Query().
+//		Select(library.FieldName).
+//		Scan(ctx, &v)
+func (lq *LibraryQuery) Select(fields ...string) *LibrarySelect {
+	lq.ctx.Fields = append(lq.ctx.Fields, fields...)
+	sbuild := &LibrarySelect{LibraryQuery: lq}
+	sbuild.label = library.Label
+	sbuild.flds, sbuild.scan = &lq.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a LibrarySelect configured with the given aggregations.
+func (lq *LibraryQuery) Aggregate(fns ...AggregateFunc) *LibrarySelect {
+	return lq.Select().Aggregate(fns...)
+}
+
+func (lq *LibraryQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range lq.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, lq); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range lq.ctx.Fields {
+		if !library.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if lq.path != nil {
+		prev, err := lq.path(ctx)
+		if err != nil {
+			return err
+		}
+		lq.sql = prev
+	}
+	return nil
+}
+
+func (lq *LibraryQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Library, error) {
+	var (
+		nodes = []*Library{}
+		_spec = lq.querySpec()
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Library).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Library{config: lq.config}
+		nodes = append(nodes, node)
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, lq.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	return nodes, nil
+}
+
+func (lq *LibraryQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := lq.querySpec()
+	_spec.Node.Columns = lq.ctx.Fields
+	if len(lq.ctx.Fields) > 0 {
+		_spec.Unique = lq.ctx.Unique != nil && *lq.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, lq.driver, _spec)
+}
+
+func (lq *LibraryQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(library.Table, library.Columns, sqlgraph.NewFieldSpec(library.FieldID, field.TypeInt))
+	_spec.From = lq.sql
+	if unique := lq.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if lq.path != nil {
+		_spec.Unique = true
+	}
+	if fields := lq.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, library.FieldID)
+		for i := range fields {
+			if fields[i] != library.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := lq.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := lq.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := lq.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := lq.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (lq *LibraryQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(lq.driver.Dialect())
+	t1 := builder.Table(library.Table)
+	columns := lq.ctx.Fields
+	if len(columns) == 0 {
+		columns = library.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if lq.sql != nil {
+		selector = lq.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if lq.ctx.Unique != nil && *lq.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range lq.predicates {
+		p(selector)
+	}
+	for _, p := range lq.order {
+		p(selector)
+	}
+	if offset := lq.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := lq.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// LibraryGroupBy is the group-by builder for Library entities.
+type LibraryGroupBy struct {
+	selector
+	build *LibraryQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (lgb *LibraryGroupBy) Aggregate(fns ...AggregateFunc) *LibraryGroupBy {
+	lgb.fns = append(lgb.fns, fns...)
+	return lgb
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (lgb *LibraryGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, lgb.build.ctx, "GroupBy")
+	if err := lgb.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*LibraryQuery, *LibraryGroupBy](ctx, lgb.build, lgb, lgb.build.inters, v)
+}
+
+func (lgb *LibraryGroupBy) sqlScan(ctx context.Context, root *LibraryQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(lgb.fns))
+	for _, fn := range lgb.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*lgb.flds)+len(lgb.fns))
+		for _, f := range *lgb.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*lgb.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := lgb.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// LibrarySelect is the builder for selecting fields of Library entities.
+type LibrarySelect struct {
+	*LibraryQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (ls *LibrarySelect) Aggregate(fns ...AggregateFunc) *LibrarySelect {
+	ls.fns = append(ls.fns, fns...)
+	return ls
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (ls *LibrarySelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, ls.ctx, "Select")
+	if err := ls.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*LibraryQuery, *LibrarySelect](ctx, ls.LibraryQuery, ls, ls.inters, v)
+}
+
+func (ls *LibrarySelect) sqlScan(ctx context.Context, root *LibraryQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(ls.fns))
+	for _, fn := range ls.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*ls.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := ls.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

ent/library_update.go

@@ -0,0 +1,332 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"leafdev.top/leaf/rag/ent/library"
+	"leafdev.top/leaf/rag/ent/predicate"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// LibraryUpdate is the builder for updating Library entities.
+type LibraryUpdate struct {
+	config
+	hooks    []Hook
+	mutation *LibraryMutation
+}
+
+// Where appends a list predicates to the LibraryUpdate builder.
+func (lu *LibraryUpdate) Where(ps ...predicate.Library) *LibraryUpdate {
+	lu.mutation.Where(ps...)
+	return lu
+}
+
+// SetName sets the "name" field.
+func (lu *LibraryUpdate) SetName(s string) *LibraryUpdate {
+	lu.mutation.SetName(s)
+	return lu
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (lu *LibraryUpdate) SetNillableName(s *string) *LibraryUpdate {
+	if s != nil {
+		lu.SetName(*s)
+	}
+	return lu
+}
+
+// SetUserID sets the "user_id" field.
+func (lu *LibraryUpdate) SetUserID(u uint64) *LibraryUpdate {
+	lu.mutation.ResetUserID()
+	lu.mutation.SetUserID(u)
+	return lu
+}
+
+// SetNillableUserID sets the "user_id" field if the given value is not nil.
+func (lu *LibraryUpdate) SetNillableUserID(u *uint64) *LibraryUpdate {
+	if u != nil {
+		lu.SetUserID(*u)
+	}
+	return lu
+}
+
+// AddUserID adds u to the "user_id" field.
+func (lu *LibraryUpdate) AddUserID(u int64) *LibraryUpdate {
+	lu.mutation.AddUserID(u)
+	return lu
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (lu *LibraryUpdate) SetCreatedAt(t time.Time) *LibraryUpdate {
+	lu.mutation.SetCreatedAt(t)
+	return lu
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (lu *LibraryUpdate) SetNillableCreatedAt(t *time.Time) *LibraryUpdate {
+	if t != nil {
+		lu.SetCreatedAt(*t)
+	}
+	return lu
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (lu *LibraryUpdate) SetUpdatedAt(t time.Time) *LibraryUpdate {
+	lu.mutation.SetUpdatedAt(t)
+	return lu
+}
+
+// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
+func (lu *LibraryUpdate) SetNillableUpdatedAt(t *time.Time) *LibraryUpdate {
+	if t != nil {
+		lu.SetUpdatedAt(*t)
+	}
+	return lu
+}
+
+// Mutation returns the LibraryMutation object of the builder.
+func (lu *LibraryUpdate) Mutation() *LibraryMutation {
+	return lu.mutation
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (lu *LibraryUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, lu.sqlSave, lu.mutation, lu.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (lu *LibraryUpdate) SaveX(ctx context.Context) int {
+	affected, err := lu.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (lu *LibraryUpdate) Exec(ctx context.Context) error {
+	_, err := lu.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (lu *LibraryUpdate) ExecX(ctx context.Context) {
+	if err := lu.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (lu *LibraryUpdate) sqlSave(ctx context.Context) (n int, err error) {
+	_spec := sqlgraph.NewUpdateSpec(library.Table, library.Columns, sqlgraph.NewFieldSpec(library.FieldID, field.TypeInt))
+	if ps := lu.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := lu.mutation.Name(); ok {
+		_spec.SetField(library.FieldName, field.TypeString, value)
+	}
+	if value, ok := lu.mutation.UserID(); ok {
+		_spec.SetField(library.FieldUserID, field.TypeUint64, value)
+	}
+	if value, ok := lu.mutation.AddedUserID(); ok {
+		_spec.AddField(library.FieldUserID, field.TypeUint64, value)
+	}
+	if value, ok := lu.mutation.CreatedAt(); ok {
+		_spec.SetField(library.FieldCreatedAt, field.TypeTime, value)
+	}
+	if value, ok := lu.mutation.UpdatedAt(); ok {
+		_spec.SetField(library.FieldUpdatedAt, field.TypeTime, value)
+	}
+	if n, err = sqlgraph.UpdateNodes(ctx, lu.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{library.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	lu.mutation.done = true
+	return n, nil
+}
+
+// LibraryUpdateOne is the builder for updating a single Library entity.
+type LibraryUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *LibraryMutation
+}
+
+// SetName sets the "name" field.
+func (luo *LibraryUpdateOne) SetName(s string) *LibraryUpdateOne {
+	luo.mutation.SetName(s)
+	return luo
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (luo *LibraryUpdateOne) SetNillableName(s *string) *LibraryUpdateOne {
+	if s != nil {
+		luo.SetName(*s)
+	}
+	return luo
+}
+
+// SetUserID sets the "user_id" field.
+func (luo *LibraryUpdateOne) SetUserID(u uint64) *LibraryUpdateOne {
+	luo.mutation.ResetUserID()
+	luo.mutation.SetUserID(u)
+	return luo
+}
+
+// SetNillableUserID sets the "user_id" field if the given value is not nil.
+func (luo *LibraryUpdateOne) SetNillableUserID(u *uint64) *LibraryUpdateOne {
+	if u != nil {
+		luo.SetUserID(*u)
+	}
+	return luo
+}
+
+// AddUserID adds u to the "user_id" field.
+func (luo *LibraryUpdateOne) AddUserID(u int64) *LibraryUpdateOne {
+	luo.mutation.AddUserID(u)
+	return luo
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (luo *LibraryUpdateOne) SetCreatedAt(t time.Time) *LibraryUpdateOne {
+	luo.mutation.SetCreatedAt(t)
+	return luo
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (luo *LibraryUpdateOne) SetNillableCreatedAt(t *time.Time) *LibraryUpdateOne {
+	if t != nil {
+		luo.SetCreatedAt(*t)
+	}
+	return luo
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (luo *LibraryUpdateOne) SetUpdatedAt(t time.Time) *LibraryUpdateOne {
+	luo.mutation.SetUpdatedAt(t)
+	return luo
+}
+
+// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
+func (luo *LibraryUpdateOne) SetNillableUpdatedAt(t *time.Time) *LibraryUpdateOne {
+	if t != nil {
+		luo.SetUpdatedAt(*t)
+	}
+	return luo
+}
+
+// Mutation returns the LibraryMutation object of the builder.
+func (luo *LibraryUpdateOne) Mutation() *LibraryMutation {
+	return luo.mutation
+}
+
+// Where appends a list predicates to the LibraryUpdate builder.
+func (luo *LibraryUpdateOne) Where(ps ...predicate.Library) *LibraryUpdateOne {
+	luo.mutation.Where(ps...)
+	return luo
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (luo *LibraryUpdateOne) Select(field string, fields ...string) *LibraryUpdateOne {
+	luo.fields = append([]string{field}, fields...)
+	return luo
+}
+
+// Save executes the query and returns the updated Library entity.
+func (luo *LibraryUpdateOne) Save(ctx context.Context) (*Library, error) {
+	return withHooks(ctx, luo.sqlSave, luo.mutation, luo.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (luo *LibraryUpdateOne) SaveX(ctx context.Context) *Library {
+	node, err := luo.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (luo *LibraryUpdateOne) Exec(ctx context.Context) error {
+	_, err := luo.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (luo *LibraryUpdateOne) ExecX(ctx context.Context) {
+	if err := luo.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+func (luo *LibraryUpdateOne) sqlSave(ctx context.Context) (_node *Library, err error) {
+	_spec := sqlgraph.NewUpdateSpec(library.Table, library.Columns, sqlgraph.NewFieldSpec(library.FieldID, field.TypeInt))
+	id, ok := luo.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Library.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := luo.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, library.FieldID)
+		for _, f := range fields {
+			if !library.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != library.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := luo.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := luo.mutation.Name(); ok {
+		_spec.SetField(library.FieldName, field.TypeString, value)
+	}
+	if value, ok := luo.mutation.UserID(); ok {
+		_spec.SetField(library.FieldUserID, field.TypeUint64, value)
+	}
+	if value, ok := luo.mutation.AddedUserID(); ok {
+		_spec.AddField(library.FieldUserID, field.TypeUint64, value)
+	}
+	if value, ok := luo.mutation.CreatedAt(); ok {
+		_spec.SetField(library.FieldCreatedAt, field.TypeTime, value)
+	}
+	if value, ok := luo.mutation.UpdatedAt(); ok {
+		_spec.SetField(library.FieldUpdatedAt, field.TypeTime, value)
+	}
+	_node = &Library{config: luo.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, luo.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{library.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	luo.mutation.done = true
+	return _node, nil
+}

ent/migrate/migrate.go

@@ -0,0 +1,96 @@
+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+var (
+	// WithGlobalUniqueID sets the universal ids options to the migration.
+	// If this option is enabled, ent migration will allocate a 1<<32 range
+	// for the ids of each entity (table).
+	// Note that this option cannot be applied on tables that already exist.
+	WithGlobalUniqueID = schema.WithGlobalUniqueID
+	// WithDropColumn sets the drop column option to the migration.
+	// If this option is enabled, ent migration will drop old columns
+	// that were used for both fields and edges. This defaults to false.
+	WithDropColumn = schema.WithDropColumn
+	// WithDropIndex sets the drop index option to the migration.
+	// If this option is enabled, ent migration will drop old indexes
+	// that were defined in the schema. This defaults to false.
+	// Note that unique constraints are defined using `UNIQUE INDEX`,
+	// and therefore, it's recommended to enable this option to get more
+	// flexibility in the schema changes.
+	WithDropIndex = schema.WithDropIndex
+	// WithForeignKeys enables creating foreign-key in schema DDL. This defaults to true.
+	WithForeignKeys = schema.WithForeignKeys
+)
+
+// Schema is the API for creating, migrating and dropping a schema.
+type Schema struct {
+	drv dialect.Driver
+}
+
+// NewSchema creates a new schema client.
+func NewSchema(drv dialect.Driver) *Schema { return &Schema{drv: drv} }
+
+// Create creates all schema resources.
+func (s *Schema) Create(ctx context.Context, opts ...schema.MigrateOption) error {
+	return Create(ctx, s, Tables, opts...)
+}
+
+// Create creates all table resources using the given schema driver.
+func Create(ctx context.Context, s *Schema, tables []*schema.Table, opts ...schema.MigrateOption) error {
+	migrate, err := schema.NewMigrate(s.drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.Create(ctx, tables...)
+}
+
+// Diff compares the state read from a database connection or migration directory with
+// the state defined by the Ent schema. Changes will be written to new migration files.
+func Diff(ctx context.Context, url string, opts ...schema.MigrateOption) error {
+	return NamedDiff(ctx, url, "changes", opts...)
+}
+
+// NamedDiff compares the state read from a database connection or migration directory with
+// the state defined by the Ent schema. Changes will be written to new named migration files.
+func NamedDiff(ctx context.Context, url, name string, opts ...schema.MigrateOption) error {
+	return schema.Diff(ctx, url, name, Tables, opts...)
+}
+
+// Diff creates a migration file containing the statements to resolve the diff
+// between the Ent schema and the connected database.
+func (s *Schema) Diff(ctx context.Context, opts ...schema.MigrateOption) error {
+	migrate, err := schema.NewMigrate(s.drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.Diff(ctx, Tables...)
+}
+
+// NamedDiff creates a named migration file containing the statements to resolve the diff
+// between the Ent schema and the connected database.
+func (s *Schema) NamedDiff(ctx context.Context, name string, opts ...schema.MigrateOption) error {
+	migrate, err := schema.NewMigrate(s.drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.NamedDiff(ctx, name, Tables...)
+}
+
+// WriteTo writes the schema changes to w instead of running them against the database.
+//
+//	if err := client.Schema.WriteTo(context.Background(), os.Stdout); err != nil {
+//		log.Fatal(err)
+//	}
+func (s *Schema) WriteTo(ctx context.Context, w io.Writer, opts ...schema.MigrateOption) error {
+	return Create(ctx, &Schema{drv: &schema.WriteDriver{Writer: w, Driver: s.drv}}, Tables, opts...)
+}

ent/migrate/schema.go

@@ -0,0 +1,39 @@
+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"entgo.io/ent/dialect/sql/schema"
+	"entgo.io/ent/schema/field"
+)
+
+var (
+	// LibrariesColumns holds the columns for the "libraries" table.
+	LibrariesColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "name", Type: field.TypeString},
+		{Name: "user_id", Type: field.TypeUint64},
+		{Name: "created_at", Type: field.TypeTime},
+		{Name: "updated_at", Type: field.TypeTime},
+	}
+	// LibrariesTable holds the schema information for the "libraries" table.
+	LibrariesTable = &schema.Table{
+		Name:       "libraries",
+		Columns:    LibrariesColumns,
+		PrimaryKey: []*schema.Column{LibrariesColumns[0]},
+		Indexes: []*schema.Index{
+			{
+				Name:    "library_name_user_id",
+				Unique:  false,
+				Columns: []*schema.Column{LibrariesColumns[1], LibrariesColumns[2]},
+			},
+		},
+	}
+	// Tables holds all the tables in the schema.
+	Tables = []*schema.Table{
+		LibrariesTable,
+	}
+)
+
+func init() {
+}

ent/mutation.go

@@ -0,0 +1,552 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"leafdev.top/leaf/rag/ent/library"
+	"leafdev.top/leaf/rag/ent/predicate"
+	"sync"
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+)
+
+const (
+	// Operation types.
+	OpCreate    = ent.OpCreate
+	OpDelete    = ent.OpDelete
+	OpDeleteOne = ent.OpDeleteOne
+	OpUpdate    = ent.OpUpdate
+	OpUpdateOne = ent.OpUpdateOne
+
+	// Node types.
+	TypeLibrary = "Library"
+)
+
+// LibraryMutation represents an operation that mutates the Library nodes in the graph.
+type LibraryMutation struct {
+	config
+	op            Op
+	typ           string
+	id            *int
+	name          *string
+	user_id       *uint64
+	adduser_id    *int64
+	created_at    *time.Time
+	updated_at    *time.Time
+	clearedFields map[string]struct{}
+	done          bool
+	oldValue      func(context.Context) (*Library, error)
+	predicates    []predicate.Library
+}
+
+var _ ent.Mutation = (*LibraryMutation)(nil)
+
+// libraryOption allows management of the mutation configuration using functional options.
+type libraryOption func(*LibraryMutation)
+
+// newLibraryMutation creates new mutation for the Library entity.
+func newLibraryMutation(c config, op Op, opts ...libraryOption) *LibraryMutation {
+	m := &LibraryMutation{
+		config:        c,
+		op:            op,
+		typ:           TypeLibrary,
+		clearedFields: make(map[string]struct{}),
+	}
+	for _, opt := range opts {
+		opt(m)
+	}
+	return m
+}
+
+// withLibraryID sets the ID field of the mutation.
+func withLibraryID(id int) libraryOption {
+	return func(m *LibraryMutation) {
+		var (
+			err   error
+			once  sync.Once
+			value *Library
+		)
+		m.oldValue = func(ctx context.Context) (*Library, error) {
+			once.Do(func() {
+				if m.done {
+					err = errors.New("querying old values post mutation is not allowed")
+				} else {
+					value, err = m.Client().Library.Get(ctx, id)
+				}
+			})
+			return value, err
+		}
+		m.id = &id
+	}
+}
+
+// withLibrary sets the old Library of the mutation.
+func withLibrary(node *Library) libraryOption {
+	return func(m *LibraryMutation) {
+		m.oldValue = func(context.Context) (*Library, error) {
+			return node, nil
+		}
+		m.id = &node.ID
+	}
+}
+
+// Client returns a new `ent.Client` from the mutation. If the mutation was
+// executed in a transaction (ent.Tx), a transactional client is returned.
+func (m LibraryMutation) Client() *Client {
+	client := &Client{config: m.config}
+	client.init()
+	return client
+}
+
+// Tx returns an `ent.Tx` for mutations that were executed in transactions;
+// it returns an error otherwise.
+func (m LibraryMutation) Tx() (*Tx, error) {
+	if _, ok := m.driver.(*txDriver); !ok {
+		return nil, errors.New("ent: mutation is not running in a transaction")
+	}
+	tx := &Tx{config: m.config}
+	tx.init()
+	return tx, nil
+}
+
+// ID returns the ID value in the mutation. Note that the ID is only available
+// if it was provided to the builder or after it was returned from the database.
+func (m *LibraryMutation) ID() (id int, exists bool) {
+	if m.id == nil {
+		return
+	}
+	return *m.id, true
+}
+
+// IDs queries the database and returns the entity ids that match the mutation's predicate.
+// That means, if the mutation is applied within a transaction with an isolation level such
+// as sql.LevelSerializable, the returned ids match the ids of the rows that will be updated
+// or updated by the mutation.
+func (m *LibraryMutation) IDs(ctx context.Context) ([]int, error) {
+	switch {
+	case m.op.Is(OpUpdateOne | OpDeleteOne):
+		id, exists := m.ID()
+		if exists {
+			return []int{id}, nil
+		}
+		fallthrough
+	case m.op.Is(OpUpdate | OpDelete):
+		return m.Client().Library.Query().Where(m.predicates...).IDs(ctx)
+	default:
+		return nil, fmt.Errorf("IDs is not allowed on %s operations", m.op)
+	}
+}
+
+// SetName sets the "name" field.
+func (m *LibraryMutation) SetName(s string) {
+	m.name = &s
+}
+
+// Name returns the value of the "name" field in the mutation.
+func (m *LibraryMutation) Name() (r string, exists bool) {
+	v := m.name
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldName returns the old "name" field's value of the Library entity.
+// If the Library object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *LibraryMutation) OldName(ctx context.Context) (v string, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldName is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldName requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldName: %w", err)
+	}
+	return oldValue.Name, nil
+}
+
+// ResetName resets all changes to the "name" field.
+func (m *LibraryMutation) ResetName() {
+	m.name = nil
+}
+
+// SetUserID sets the "user_id" field.
+func (m *LibraryMutation) SetUserID(u uint64) {
+	m.user_id = &u
+	m.adduser_id = nil
+}
+
+// UserID returns the value of the "user_id" field in the mutation.
+func (m *LibraryMutation) UserID() (r uint64, exists bool) {
+	v := m.user_id
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldUserID returns the old "user_id" field's value of the Library entity.
+// If the Library object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *LibraryMutation) OldUserID(ctx context.Context) (v uint64, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldUserID is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldUserID requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldUserID: %w", err)
+	}
+	return oldValue.UserID, nil
+}
+
+// AddUserID adds u to the "user_id" field.
+func (m *LibraryMutation) AddUserID(u int64) {
+	if m.adduser_id != nil {
+		*m.adduser_id += u
+	} else {
+		m.adduser_id = &u
+	}
+}
+
+// AddedUserID returns the value that was added to the "user_id" field in this mutation.
+func (m *LibraryMutation) AddedUserID() (r int64, exists bool) {
+	v := m.adduser_id
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ResetUserID resets all changes to the "user_id" field.
+func (m *LibraryMutation) ResetUserID() {
+	m.user_id = nil
+	m.adduser_id = nil
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (m *LibraryMutation) SetCreatedAt(t time.Time) {
+	m.created_at = &t
+}
+
+// CreatedAt returns the value of the "created_at" field in the mutation.
+func (m *LibraryMutation) CreatedAt() (r time.Time, exists bool) {
+	v := m.created_at
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldCreatedAt returns the old "created_at" field's value of the Library entity.
+// If the Library object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *LibraryMutation) OldCreatedAt(ctx context.Context) (v time.Time, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldCreatedAt is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldCreatedAt requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldCreatedAt: %w", err)
+	}
+	return oldValue.CreatedAt, nil
+}
+
+// ResetCreatedAt resets all changes to the "created_at" field.
+func (m *LibraryMutation) ResetCreatedAt() {
+	m.created_at = nil
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (m *LibraryMutation) SetUpdatedAt(t time.Time) {
+	m.updated_at = &t
+}
+
+// UpdatedAt returns the value of the "updated_at" field in the mutation.
+func (m *LibraryMutation) UpdatedAt() (r time.Time, exists bool) {
+	v := m.updated_at
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldUpdatedAt returns the old "updated_at" field's value of the Library entity.
+// If the Library object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *LibraryMutation) OldUpdatedAt(ctx context.Context) (v time.Time, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldUpdatedAt is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldUpdatedAt requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldUpdatedAt: %w", err)
+	}
+	return oldValue.UpdatedAt, nil
+}
+
+// ResetUpdatedAt resets all changes to the "updated_at" field.
+func (m *LibraryMutation) ResetUpdatedAt() {
+	m.updated_at = nil
+}
+
+// Where appends a list predicates to the LibraryMutation builder.
+func (m *LibraryMutation) Where(ps ...predicate.Library) {
+	m.predicates = append(m.predicates, ps...)
+}
+
+// WhereP appends storage-level predicates to the LibraryMutation builder. Using this method,
+// users can use type-assertion to append predicates that do not depend on any generated package.
+func (m *LibraryMutation) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]predicate.Library, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	m.Where(p...)
+}
+
+// Op returns the operation name.
+func (m *LibraryMutation) Op() Op {
+	return m.op
+}
+
+// SetOp allows setting the mutation operation.
+func (m *LibraryMutation) SetOp(op Op) {
+	m.op = op
+}
+
+// Type returns the node type of this mutation (Library).
+func (m *LibraryMutation) Type() string {
+	return m.typ
+}
+
+// Fields returns all fields that were changed during this mutation. Note that in
+// order to get all numeric fields that were incremented/decremented, call
+// AddedFields().
+func (m *LibraryMutation) Fields() []string {
+	fields := make([]string, 0, 4)
+	if m.name != nil {
+		fields = append(fields, library.FieldName)
+	}
+	if m.user_id != nil {
+		fields = append(fields, library.FieldUserID)
+	}
+	if m.created_at != nil {
+		fields = append(fields, library.FieldCreatedAt)
+	}
+	if m.updated_at != nil {
+		fields = append(fields, library.FieldUpdatedAt)
+	}
+	return fields
+}
+
+// Field returns the value of a field with the given name. The second boolean
+// return value indicates that this field was not set, or was not defined in the
+// schema.
+func (m *LibraryMutation) Field(name string) (ent.Value, bool) {
+	switch name {
+	case library.FieldName:
+		return m.Name()
+	case library.FieldUserID:
+		return m.UserID()
+	case library.FieldCreatedAt:
+		return m.CreatedAt()
+	case library.FieldUpdatedAt:
+		return m.UpdatedAt()
+	}
+	return nil, false
+}
+
+// OldField returns the old value of the field from the database. An error is
+// returned if the mutation operation is not UpdateOne, or the query to the
+// database failed.
+func (m *LibraryMutation) OldField(ctx context.Context, name string) (ent.Value, error) {
+	switch name {
+	case library.FieldName:
+		return m.OldName(ctx)
+	case library.FieldUserID:
+		return m.OldUserID(ctx)
+	case library.FieldCreatedAt:
+		return m.OldCreatedAt(ctx)
+	case library.FieldUpdatedAt:
+		return m.OldUpdatedAt(ctx)
+	}
+	return nil, fmt.Errorf("unknown Library field %s", name)
+}
+
+// SetField sets the value of a field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *LibraryMutation) SetField(name string, value ent.Value) error {
+	switch name {
+	case library.FieldName:
+		v, ok := value.(string)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetName(v)
+		return nil
+	case library.FieldUserID:
+		v, ok := value.(uint64)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetUserID(v)
+		return nil
+	case library.FieldCreatedAt:
+		v, ok := value.(time.Time)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetCreatedAt(v)
+		return nil
+	case library.FieldUpdatedAt:
+		v, ok := value.(time.Time)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetUpdatedAt(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Library field %s", name)
+}
+
+// AddedFields returns all numeric fields that were incremented/decremented during
+// this mutation.
+func (m *LibraryMutation) AddedFields() []string {
+	var fields []string
+	if m.adduser_id != nil {
+		fields = append(fields, library.FieldUserID)
+	}
+	return fields
+}
+
+// AddedField returns the numeric value that was incremented/decremented on a field
+// with the given name. The second boolean return value indicates that this field
+// was not set, or was not defined in the schema.
+func (m *LibraryMutation) AddedField(name string) (ent.Value, bool) {
+	switch name {
+	case library.FieldUserID:
+		return m.AddedUserID()
+	}
+	return nil, false
+}
+
+// AddField adds the value to the field with the given name. It returns an error if
+// the field is not defined in the schema, or if the type mismatched the field
+// type.
+func (m *LibraryMutation) AddField(name string, value ent.Value) error {
+	switch name {
+	case library.FieldUserID:
+		v, ok := value.(int64)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.AddUserID(v)
+		return nil
+	}
+	return fmt.Errorf("unknown Library numeric field %s", name)
+}
+
+// ClearedFields returns all nullable fields that were cleared during this
+// mutation.
+func (m *LibraryMutation) ClearedFields() []string {
+	return nil
+}
+
+// FieldCleared returns a boolean indicating if a field with the given name was
+// cleared in this mutation.
+func (m *LibraryMutation) FieldCleared(name string) bool {
+	_, ok := m.clearedFields[name]
+	return ok
+}
+
+// ClearField clears the value of the field with the given name. It returns an
+// error if the field is not defined in the schema.
+func (m *LibraryMutation) ClearField(name string) error {
+	return fmt.Errorf("unknown Library nullable field %s", name)
+}
+
+// ResetField resets all changes in the mutation for the field with the given name.
+// It returns an error if the field is not defined in the schema.
+func (m *LibraryMutation) ResetField(name string) error {
+	switch name {
+	case library.FieldName:
+		m.ResetName()
+		return nil
+	case library.FieldUserID:
+		m.ResetUserID()
+		return nil
+	case library.FieldCreatedAt:
+		m.ResetCreatedAt()
+		return nil
+	case library.FieldUpdatedAt:
+		m.ResetUpdatedAt()
+		return nil
+	}
+	return fmt.Errorf("unknown Library field %s", name)
+}
+
+// AddedEdges returns all edge names that were set/added in this mutation.
+func (m *LibraryMutation) AddedEdges() []string {
+	edges := make([]string, 0, 0)
+	return edges
+}
+
+// AddedIDs returns all IDs (to other nodes) that were added for the given edge
+// name in this mutation.
+func (m *LibraryMutation) AddedIDs(name string) []ent.Value {
+	return nil
+}
+
+// RemovedEdges returns all edge names that were removed in this mutation.
+func (m *LibraryMutation) RemovedEdges() []string {
+	edges := make([]string, 0, 0)
+	return edges
+}
+
+// RemovedIDs returns all IDs (to other nodes) that were removed for the edge with
+// the given name in this mutation.
+func (m *LibraryMutation) RemovedIDs(name string) []ent.Value {
+	return nil
+}
+
+// ClearedEdges returns all edge names that were cleared in this mutation.
+func (m *LibraryMutation) ClearedEdges() []string {
+	edges := make([]string, 0, 0)
+	return edges
+}
+
+// EdgeCleared returns a boolean which indicates if the edge with the given name
+// was cleared in this mutation.
+func (m *LibraryMutation) EdgeCleared(name string) bool {
+	return false
+}
+
+// ClearEdge clears the value of the edge with the given name. It returns an error
+// if that edge is not defined in the schema.
+func (m *LibraryMutation) ClearEdge(name string) error {
+	return fmt.Errorf("unknown Library unique edge %s", name)
+}
+
+// ResetEdge resets all changes to the edge with the given name in this mutation.
+// It returns an error if the edge is not defined in the schema.
+func (m *LibraryMutation) ResetEdge(name string) error {
+	return fmt.Errorf("unknown Library edge %s", name)
+}

ent/predicate/predicate.go

@@ -0,0 +1,10 @@
+// Code generated by ent, DO NOT EDIT.
+
+package predicate
+
+import (
+	"entgo.io/ent/dialect/sql"
+)
+
+// Library is the predicate function for library builders.
+type Library func(*sql.Selector)

ent/runtime.go

@@ -0,0 +1,25 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"leafdev.top/leaf/rag/ent/library"
+	"leafdev.top/leaf/rag/ent/schema"
+	"time"
+)
+
+// The init function reads all schema descriptors with runtime code
+// (default values, validators, hooks and policies) and stitches it
+// to their package variables.
+func init() {
+	libraryFields := schema.Library{}.Fields()
+	_ = libraryFields
+	// libraryDescCreatedAt is the schema descriptor for created_at field.
+	libraryDescCreatedAt := libraryFields[2].Descriptor()
+	// library.DefaultCreatedAt holds the default value on creation for the created_at field.
+	library.DefaultCreatedAt = libraryDescCreatedAt.Default.(func() time.Time)
+	// libraryDescUpdatedAt is the schema descriptor for updated_at field.
+	libraryDescUpdatedAt := libraryFields[3].Descriptor()
+	// library.DefaultUpdatedAt holds the default value on creation for the updated_at field.
+	library.DefaultUpdatedAt = libraryDescUpdatedAt.Default.(func() time.Time)
+}

ent/runtime/runtime.go

@@ -0,0 +1,10 @@
+// Code generated by ent, DO NOT EDIT.
+
+package runtime
+
+// The schema-stitching logic is generated in framework_v2/ent/runtime.go
+
+const (
+	Version = "v0.13.1"                                         // Version of ent codegen.
+	Sum     = "h1:uD8QwN1h6SNphdCCzmkMN3feSUzNnVvV/WIkHKMbzOE=" // Sum of ent codegen.
+)

ent/schema/library.go

@@ -0,0 +1,37 @@
+package schema
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/field"
+	"entgo.io/ent/schema/index"
+	"time"
+)
+
+// Library holds the schema definition for the Library entity.
+type Library struct {
+	ent.Schema
+}
+
+// Fields of the Library.
+func (Library) Fields() []ent.Field {
+	return []ent.Field{
+		field.String("name"),
+		field.Uint64("user_id"),
+		field.Time("created_at").Default(time.Now),
+		field.Time("updated_at").Default(time.Now),
+	}
+}
+
+// Edges of the Library.
+func (Library) Edges() []ent.Edge {
+	return []ent.Edge{
+		//edge.To("library", Library.Type),
+	}
+}
+
+// Indexes of the Library.
+func (Library) Indexes() []ent.Index {
+	return []ent.Index{
+		index.Fields("name", "user_id"),
+	}
+}

ent/tx.go

@@ -0,0 +1,210 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"sync"
+
+	"entgo.io/ent/dialect"
+)
+
+// Tx is a transactional client that is created by calling Client.Tx().
+type Tx struct {
+	config
+	// Library is the client for interacting with the Library builders.
+	Library *LibraryClient
+
+	// lazily loaded.
+	client     *Client
+	clientOnce sync.Once
+	// ctx lives for the life of the transaction. It is
+	// the same context used by the underlying connection.
+	ctx context.Context
+}
+
+type (
+	// Committer is the interface that wraps the Commit method.
+	Committer interface {
+		Commit(context.Context, *Tx) error
+	}
+
+	// The CommitFunc type is an adapter to allow the use of ordinary
+	// function as a Committer. If f is a function with the appropriate
+	// signature, CommitFunc(f) is a Committer that calls f.
+	CommitFunc func(context.Context, *Tx) error
+
+	// CommitHook defines the "commit middleware". A function that gets a Committer
+	// and returns a Committer. For example:
+	//
+	//	hook := func(next ent.Committer) ent.Committer {
+	//		return ent.CommitFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Commit(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	CommitHook func(Committer) Committer
+)
+
+// Commit calls f(ctx, m).
+func (f CommitFunc) Commit(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Commit commits the transaction.
+func (tx *Tx) Commit() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Committer = CommitFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Commit()
+	})
+	txDriver.mu.Lock()
+	hooks := append([]CommitHook(nil), txDriver.onCommit...)
+	txDriver.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Commit(tx.ctx, tx)
+}
+
+// OnCommit adds a hook to call on commit.
+func (tx *Tx) OnCommit(f CommitHook) {
+	txDriver := tx.config.driver.(*txDriver)
+	txDriver.mu.Lock()
+	txDriver.onCommit = append(txDriver.onCommit, f)
+	txDriver.mu.Unlock()
+}
+
+type (
+	// Rollbacker is the interface that wraps the Rollback method.
+	Rollbacker interface {
+		Rollback(context.Context, *Tx) error
+	}
+
+	// The RollbackFunc type is an adapter to allow the use of ordinary
+	// function as a Rollbacker. If f is a function with the appropriate
+	// signature, RollbackFunc(f) is a Rollbacker that calls f.
+	RollbackFunc func(context.Context, *Tx) error
+
+	// RollbackHook defines the "rollback middleware". A function that gets a Rollbacker
+	// and returns a Rollbacker. For example:
+	//
+	//	hook := func(next ent.Rollbacker) ent.Rollbacker {
+	//		return ent.RollbackFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Rollback(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	RollbackHook func(Rollbacker) Rollbacker
+)
+
+// Rollback calls f(ctx, m).
+func (f RollbackFunc) Rollback(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Rollback rollbacks the transaction.
+func (tx *Tx) Rollback() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Rollbacker = RollbackFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Rollback()
+	})
+	txDriver.mu.Lock()
+	hooks := append([]RollbackHook(nil), txDriver.onRollback...)
+	txDriver.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Rollback(tx.ctx, tx)
+}
+
+// OnRollback adds a hook to call on rollback.
+func (tx *Tx) OnRollback(f RollbackHook) {
+	txDriver := tx.config.driver.(*txDriver)
+	txDriver.mu.Lock()
+	txDriver.onRollback = append(txDriver.onRollback, f)
+	txDriver.mu.Unlock()
+}
+
+// Client returns a Client that binds to current transaction.
+func (tx *Tx) Client() *Client {
+	tx.clientOnce.Do(func() {
+		tx.client = &Client{config: tx.config}
+		tx.client.init()
+	})
+	return tx.client
+}
+
+func (tx *Tx) init() {
+	tx.Library = NewLibraryClient(tx.config)
+}
+
+// txDriver wraps the given dialect.Tx with a nop dialect.Driver implementation.
+// The idea is to support transactions without adding any extra code to the builders.
+// When a builder calls to driver.Tx(), it gets the same dialect.Tx instance.
+// Commit and Rollback are nop for the internal builders and the user must call one
+// of them in order to commit or rollback the transaction.
+//
+// If a closed transaction is embedded in one of the generated entities, and the entity
+// applies a query, for example: Library.QueryXXX(), the query will be executed
+// through the driver which created this transaction.
+//
+// Note that txDriver is not goroutine safe.
+type txDriver struct {
+	// the driver we started the transaction from.
+	drv dialect.Driver
+	// tx is the underlying transaction.
+	tx dialect.Tx
+	// completion hooks.
+	mu         sync.Mutex
+	onCommit   []CommitHook
+	onRollback []RollbackHook
+}
+
+// newTx creates a new transactional driver.
+func newTx(ctx context.Context, drv dialect.Driver) (*txDriver, error) {
+	tx, err := drv.Tx(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &txDriver{tx: tx, drv: drv}, nil
+}
+
+// Tx returns the transaction wrapper (txDriver) to avoid Commit or Rollback calls
+// from the internal builders. Should be called only by the internal builders.
+func (tx *txDriver) Tx(context.Context) (dialect.Tx, error) { return tx, nil }
+
+// Dialect returns the dialect of the driver we started the transaction from.
+func (tx *txDriver) Dialect() string { return tx.drv.Dialect() }
+
+// Close is a nop close.
+func (*txDriver) Close() error { return nil }
+
+// Commit is a nop commit for the internal builders.
+// User must call `Tx.Commit` in order to commit the transaction.
+func (*txDriver) Commit() error { return nil }
+
+// Rollback is a nop rollback for the internal builders.
+// User must call `Tx.Rollback` in order to rollback the transaction.
+func (*txDriver) Rollback() error { return nil }
+
+// Exec calls tx.Exec.
+func (tx *txDriver) Exec(ctx context.Context, query string, args, v any) error {
+	return tx.tx.Exec(ctx, query, args, v)
+}
+
+// Query calls tx.Query.
+func (tx *txDriver) Query(ctx context.Context, query string, args, v any) error {
+	return tx.tx.Query(ctx, query, args, v)
+}
+
+var _ dialect.Driver = (*txDriver)(nil)

internal/migrations/20240714155720_create_library.sql

@@ -0,0 +1,11 @@
+-- +goose Up
+-- create "libraries" table
+CREATE TABLE "libraries" ("id" bigint NOT NULL GENERATED BY DEFAULT AS IDENTITY, "name" character varying NOT NULL, "user_id" bigint NOT NULL, "created_at" timestamptz NOT NULL, "updated_at" timestamptz NOT NULL, PRIMARY KEY ("id"));
+-- create index "library_name_user_id" to table: "libraries"
+CREATE INDEX "library_name_user_id" ON "libraries" ("name", "user_id");
+
+-- +goose Down
+-- reverse: create index "library_name_user_id" to table: "libraries"
+DROP INDEX "library_name_user_id";
+-- reverse: create "libraries" table
+DROP TABLE "libraries";

internal/migrations/atlas.sum

@@ -0,0 +1,2 @@
+h1:UUSMLWHMuU9uMY48Lb2EYjpQSZk/Ngn7OEjDSH7UQlA=
+20240714155720_create_library.sql h1:JzdeQPcsm2609MV/6DbYu5N7tg583qpxoaXgFtazOzE=