package internal

import (
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/imdotdev/im.dev/server/internal/api"
	"github.com/imdotdev/im.dev/server/internal/cache"
	"github.com/imdotdev/im.dev/server/internal/storage"
	"github.com/imdotdev/im.dev/server/internal/user"
	"github.com/imdotdev/im.dev/server/pkg/common"
	"github.com/imdotdev/im.dev/server/pkg/config"
	"github.com/imdotdev/im.dev/server/pkg/e"
	"github.com/imdotdev/im.dev/server/pkg/log"
)

type Server struct {
}

// New ...
func New() *Server {
	return &Server{}
}

var logger = log.RootLogger.New("logger", "server")

// Start ...1=
func (s *Server) Start() error {
	err := storage.Init()
	if err != nil {
		return err
	}

	// if config.Data.Common.IsProd {
	gin.SetMode((gin.ReleaseMode))
	// } else {
	// 	gin.SetMode(gin.DebugMode)
	// }

	go cache.Init()
	go func() {
		router := gin.New()
		router.Use(Cors())

		r := router.Group("/api")

		//story apis
		r.GET("/story/post/:id", api.GetStory)
		r.GET("/story/id/:type", IsLogin(), InvasionCheck(), api.GenStoryID)
		r.GET("/story/comments/:id", api.GetStoryComments)
		r.POST("/story/comment", IsLogin(), api.SubmitComment)
		r.DELETE("/story/comment/:id", IsLogin(), api.DeleteStoryComment)
		r.GET("/story/posts/editor", IsLogin(), api.GetEditorPosts)
		r.GET("/story/posts/drafts", IsLogin(), api.GetEditorDrafts)
		r.GET("/story/posts/home/:filter", api.GetHomePosts)
		r.POST("/story", IsLogin(), api.SubmitStory)
		r.POST("/story/pin/:storyID", IsLogin(), api.PinStory)
		r.POST("/story/series", api.GetSeries)
		r.POST("/story/series/post/:id", IsLogin(), api.SubmitSeriesPost)
		r.GET("/story/series/post/:id", api.GetSeriesPost)
		r.GET("/story/series/posts/:id", api.GetSeriesPosts)
		r.GET("/story/series/byPostID/:id", api.GetPostSeries)
		r.DELETE("/story/series/post/:id", IsLogin(), api.DeleteSeriesPost)
		r.POST("/story/post/draft", IsLogin(), api.SubmitPostDraft)
		r.DELETE("/story/post/:id", IsLogin(), api.DeletePost)
		r.POST("/story/bookmark/:storyID", IsLogin(), api.Bookmark)
		r.GET("/story/bookmark/posts", IsLogin(), api.GetBookmarkPosts)

		// tag apis
		r.POST("/tag", IsLogin(), api.SubmitTag)
		r.DELETE("/tag/:id", IsLogin(), api.DeleteTag)
		r.GET("/tag/all", api.GetTags)
		r.POST("tag/ids", api.GetTagsByIDs) // 根据对象ID列表获取关联的标签
		r.GET("/tag/posts/:id", api.GetTagPosts)
		r.GET("/tag/info/:name", api.GetTag)
		r.GET("/tag/user/:userID", api.GetUserTags) // 获取用户博客用到的标签列表
		// user apis
		r.GET("/user/all", api.GetUsers)
		r.POST("/user/ids", api.GetUsersByIDs)
		r.GET("/user/self", IsLogin(), api.GetUserSelf)
		r.GET("/user/info/:username", api.GetUser)
		r.POST("/user/update", IsLogin(), api.UpdateUser)
		r.GET("/user/posts/:userID", api.GetUserPosts)
		r.GET("/user/session", api.GetSession)
		r.POST("/user/login", user.Login)
		r.POST("/user/logout", user.Logout)
		r.POST("/user/navbar", IsLogin(), api.SubmitNavbar)
		// interaction apis
		r.POST("/interaction/like/:id", IsLogin(), api.Like)
		r.POST("/interaction/follow/:id", IsLogin(), api.Follow)
		r.POST("/interaction/following/weight", IsLogin(), api.SetFollowingWeight)
		r.GET("/interaction/followed/:id", api.Followed)
		r.GET("/interaction/following/:userID", api.GetFollowing)
		r.GET("/interaction/followers/:userID", api.GetFollowers)

		// search apis
		r.GET("/search/posts/:filter", api.SearchPosts)
		r.GET("/search/users/:filter", api.SearchUsers)

		// other apis
		r.GET("/config", GetConfig)

		err := router.Run(config.Data.Server.Addr)
		if err != nil {
			logger.Crit("start backend server error", "error", err)
			panic(err)
		}
	}()
	return nil
}

// Close ...
func (s *Server) Close() error {
	return nil
}

// Cors is a gin middleware for cross domain.
func Cors() gin.HandlerFunc {
	return func(c *gin.Context) {
		method := c.Request.Method

		c.Header("Access-Control-Allow-Origin", "*")
		c.Header("Access-Control-Allow-Headers", "Content-Type,AccessToken,X-CSRF-Token, Authorization,X-Token,*")
		c.Header("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE, OPTIONS")
		c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Content-Type")
		c.Header("Access-Control-Allow-Credentials", "true")

		//放行所有OPTIONS方法
		if method == "OPTIONS" {
			c.AbortWithStatus(http.StatusNoContent)
		}

		// 处理请求
		c.Next()
	}
}

// Auth is a gin middleware for user auth
func IsLogin() gin.HandlerFunc {
	return func(c *gin.Context) {
		user := user.CurrentUser(c)
		if user == nil {
			c.JSON(http.StatusUnauthorized, common.RespError(e.NeedLogin))
			c.Abort()
			return
		}
		c.Next()
	}
}

func InvasionCheck() gin.HandlerFunc {
	return func(c *gin.Context) {
		//@todo
		c.Next()
	}
}