package main

import (
	"github.com/gin-gonic/gin"
	"github.com/golang-jwt/jwt"
	"strings"
	"videoplayer/dao"
	"videoplayer/handler"
	"videoplayer/worker"
)

var signingKey = []byte("aadafcvretmoi9")

func main() {

	r := gin.Default()
	dao.Init()
	worker.InitRedis()
	r.Use(handler.CrosHandler())
	r.Use(JWTAuthMiddleware()) // 使用 JWT 认证中间件
	handler.SetUpVideoGroup(r)
	handler.SetUpUserGroup(r)
	handler.SetUpDeviceGroup(r)
	r.Run(":8083") // listen and serve on 0.0.0.0:8082
	defer dao.Close()
	defer worker.CloseRedis()
}

func JWTAuthMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {
		// 从请求头中获取 JWT 令牌
		tokenString := c.Request.Header.Get("token")

		//请求方式为get时，从url中获取token
		if tokenString == "" {
			tokenString = c.Query("token")
		}

		//如果请求为login或register，则不需要验证token
		if strings.Contains(c.Request.URL.Path, "/login") || strings.Contains(c.Request.URL.Path, "/register") || strings.Contains(c.Request.URL.Path, "/uuid") || strings.Contains(c.Request.URL.Path, "/gqr") || strings.Contains(c.Request.URL.Path, "/uuid") {
			c.Next()
			return
		}
		if tokenString == "" {
			//c.AbortWithStatus(200)
			c.JSON(200, gin.H{
				"message": "Unauthorized",
				"error":   "token is empty",
				"code":    "3",
			})
			return
		}
		redisToken := worker.GetRedis(tokenString)

		if redisToken == "" {
			c.AbortWithStatus(200)
			c.JSON(200, gin.H{
				"message": "NOT_LOGIN",
				"error":   "server token is empty",
				"code":    "4",
			})
			return
		}

		// 解析 JWT 令牌
		token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
			return signingKey, nil
		})

		// 验证令牌
		if err != nil || !token.Valid {
			c.AbortWithStatus(200)
			c.JSON(200, gin.H{
				"message": "NOT_LOGIN",
				"error":   "Invalid token",
				"code":    "4",
			})
			return
		}

		// 将用户信息添加到上下文中
		c.Set("id", token.Claims.(jwt.MapClaims)["id"])
		c.Set("username", token.Claims.(jwt.MapClaims)["username"])

		// 继续处理请求
		c.Next()
	}
}