package middleware

import (
	"github.com/gin-contrib/sessions"
	"github.com/gin-gonic/gin"
	"net/http"
	"one-api/common"
	"one-api/model"
	"strings"
)

func authHelper(c *gin.Context, minRole int) {
	session := sessions.Default(c)
	username := session.Get("username")
	role := session.Get("role")
	id := session.Get("id")
	status := session.Get("status")
	if username == nil {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": "无权进行此操作，未登录",
		})
		c.Abort()
		return
	}
	if status.(int) == common.UserStatusDisabled {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": "用户已被封禁",
		})
		c.Abort()
		return
	}
	if role.(int) < minRole {
		c.JSON(http.StatusOK, gin.H{
			"success": false,
			"message": "无权进行此操作，权限不足",
		})
		c.Abort()
		return
	}
	c.Set("username", username)
	c.Set("role", role)
	c.Set("id", id)
	c.Next()
}

func UserAuth() func(c *gin.Context) {
	return func(c *gin.Context) {
		authHelper(c, common.RoleCommonUser)
	}
}

func AdminAuth() func(c *gin.Context) {
	return func(c *gin.Context) {
		authHelper(c, common.RoleAdminUser)
	}
}

func RootAuth() func(c *gin.Context) {
	return func(c *gin.Context) {
		authHelper(c, common.RoleRootUser)
	}
}

func TokenAuth() func(c *gin.Context) {
	return func(c *gin.Context) {
		key := c.Request.Header.Get("Authorization")
		parts := strings.Split(key, "-")
		key = parts[0]
		token, err := model.ValidateUserToken(key)
		if err != nil {
			c.JSON(http.StatusOK, gin.H{
				"error": gin.H{
					"message": err.Error(),
					"type":    "one_api_error",
				},
			})
			c.Abort()
			return
		}
		c.Set("id", token.UserId)
		if len(parts) > 1 {
			c.Set("channelId", parts[1])
		}
		c.Next()
	}
}