package middleware

import (
	"github.com/gin-gonic/gin"
	"github.com/golang-jwt/jwt"
	"go_api_tmpl/core"
	"go_api_tmpl/global"
	"go_api_tmpl/utils"
	"net/http"
)

// AuthorizeJWT 验证JWT
func AuthorizeJWT() gin.HandlerFunc {
	return func(ctx *gin.Context) {
		const BearerSchema string = "Bearer "
		authHeader := ctx.GetHeader("Authorization")
		if authHeader == "" {
			core.R(ctx).FailWithMessageAndCode("请先登录", http.StatusUnauthorized)
			ctx.Abort()
			return
		}
		tokenString := authHeader[len(BearerSchema):]

		if token, err := utils.ValidateToken(tokenString); err != nil {
			global.Log.Errorf("Token校验失败: %v ------> %v", tokenString, err.Error())
			core.R(ctx).FailWithMessageAndCode("Token校验失败", http.StatusUnauthorized)
			return
		} else {
			if claims, ok := token.Claims.(jwt.MapClaims); !ok {
				ctx.AbortWithStatus(http.StatusUnauthorized)
			} else {
				if token.Valid {
					ctx.Set("userId", claims["userId"])
				} else {
					ctx.AbortWithStatus(http.StatusUnauthorized)
				}
			}
		}

	}
}