package application_v1

import (
	"github.com/gin-gonic/gin"
	"github.com/iVampireSP/pkg/page"
	"leafdev.top/Ecosystem/recommender/internal/entity"
	"leafdev.top/Ecosystem/recommender/internal/handler/http/request"
	"leafdev.top/Ecosystem/recommender/internal/handler/http/response"
	"leafdev.top/Ecosystem/recommender/internal/service/application"
	"leafdev.top/Ecosystem/recommender/internal/service/auth"
	"leafdev.top/Ecosystem/recommender/internal/service/category"
	"leafdev.top/Ecosystem/recommender/internal/service/post"
	"net/http"
)

type PostController struct {
	authService        *auth.Service
	applicationService *application.Service
	postService        *post.Service
	categoryService    *category.Service
}

func NewPostController(
	authService *auth.Service,
	applicationService *application.Service,
	postService *post.Service,
	categoryService *category.Service,
) *PostController {
	return &PostController{
		authService,
		applicationService,
		postService,
		categoryService,
	}
}

// List godoc
// @Summary      列出 Posts
// @Description  列出 Posts
// @Tags         application_api
// @Accept       json
// @Produce      json
// @Security     ApiKeyAuth
// @Success      200  {object}  response.ResponseBody{data=page.PagedResult[entity.Post]}
// @Failure      400  {object}  response.ResponseBody
// @Router       /applications/v1/posts [get]
func (pc *PostController) List(c *gin.Context) {
	app, err := pc.authService.GetApplication(c)
	if err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	var pagedResult = page.NewPagedResult[*entity.Post]()

	err = pc.postService.ListPosts(c, pagedResult, nil, app)

	response.Ctx(c).Data(pagedResult.Output()).Send()
	return
}

// Save godoc
// @Summary      新建资源
// @Description  新建资源
// @Tags         application_api
// @Accept       json
// @Produce      json
// @Security     ApiKeyAuth
// @Param        PostSaveRequest  body  request.PostSaveRequest  true  "body"
// @Success      200  {object}  response.ResponseBody{data=entity.Post}
// @Failure      400  {object}  response.ResponseBody
// @Router       /applications/v1/posts [post]
func (pc *PostController) Save(c *gin.Context) {
	app, err := pc.authService.GetApplication(c)
	if err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	var postSaveRequest = &request.PostSaveRequest{}
	if err := c.ShouldBindJSON(postSaveRequest); err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	categoryEntity, err := pc.categoryService.GetCategoryById(c, postSaveRequest.CategoryId)
	if err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	if categoryEntity.ApplicationId != app.Id {
		response.Ctx(c).Status(http.StatusNotFound).Send()
		return
	}

	var postEntity = &entity.Post{
		Title:         postSaveRequest.Title,
		Content:       postSaveRequest.Content,
		TargetId:      postSaveRequest.TargetId,
		ApplicationId: app.Id,
		CategoryId:    &categoryEntity.Id,
		Processed:     false,
	}

	err = pc.postService.CreatePost(c, postEntity)

	response.Ctx(c).Error(err).Data(postEntity).Send()
	return
}

// Delete godoc
// @Summary      删除 Post
// @Description  删除 Post
// @Tags         application_api
// @Accept       json
// @Produce      json
// @Security     ApiKeyAuth
// @Param        postIdRequest path request.PostIdRequest true "post_id"
// @Success      200  {object}  response.ResponseBody{data=entity.Post}
// @Failure      400  {object}  response.ResponseBody
// @Router       /applications/v1/post/{post_id} [delete]
func (pc *PostController) Delete(c *gin.Context) {
	app, err := pc.authService.GetApplication(c)
	if err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	var postIdRequest = &request.PostIdRequest{}
	if err := c.ShouldBindUri(postIdRequest); err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	postEntity, err := pc.postService.GetPostById(c, postIdRequest.PostId)
	if err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	if postEntity.ApplicationId != app.Id {
		response.Ctx(c).Status(http.StatusForbidden).Send()
		return
	}

	err = pc.postService.DeletePost(c, postEntity)
	if err != nil {
		response.Ctx(c).Error(err).Send()
	}

	response.Ctx(c).Status(http.StatusNoContent).Send()

	return
}

// Get godoc
// @Summary      获取 Post
// @Description  获取 Post
// @Tags         application_api
// @Accept       json
// @Produce      json
// @Security     ApiKeyAuth
// @Param        postIdRequest path request.PostIdRequest true "post_id"
// @Success      200  {object}  response.ResponseBody{data=entity.Post}
// @Failure      400  {object}  response.ResponseBody
// @Router       /applications/v1/post/{post_id} [get]
func (pc *PostController) Get(c *gin.Context) {
	app, err := pc.authService.GetApplication(c)
	if err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	var postIdRequest = &request.PostIdRequest{}
	if err := c.ShouldBindUri(postIdRequest); err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	postEntity, err := pc.postService.GetPostById(c, postIdRequest.PostId)
	if err != nil {
		response.Ctx(c).Error(err).Status(http.StatusBadRequest).Send()
		return
	}

	if postEntity.ApplicationId != app.Id {
		response.Ctx(c).Status(http.StatusForbidden).Send()
		return
	}

	response.Ctx(c).Data(postEntity).Send()

	return
}