package middlewares

import (
	"cron_admin/app/constants/errorcode"
	"cron_admin/app/http/controllers"
	"cron_admin/app/http/requestmapping"
	"cron_admin/app/utils"
	"fmt"
	"github.com/gin-gonic/gin"
	"strings"
)

func Auth() gin.HandlerFunc {
	return func(c *gin.Context) {
		c.ClientIP()
		var tokens = strings.SplitN(c.GetHeader("Authorization"), " ", 2)
		if len(tokens) != 2 || tokens[0] != "Bearer" {
			controllers.HandRes(c, nil, errorcode.NotLogin)
			c.Abort()
			return
		}
		// 验证token
		token, claims, err := utils.ParseToken(tokens[1])
		if err != nil || !token.Valid {
			controllers.HandRes(c, nil, errorcode.NotAuth)
			c.Abort()
			return
		}
		if err == nil {
			c.Set("userId", claims.Id)
			c.Set("phone", claims.Phone)
			c.Next()
			return
		} else {
			controllers.HandRes(c, nil, errorcode.NotAuth)
			c.Abort()
		}
	}
}

func Cors() gin.HandlerFunc {
	return func(c *gin.Context) {
		c.Writer.Header().Set("Access-Control-Allow-Origin", "*")
		c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")
		c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, platform,Accept-Encoding, X-CSRF-Token, Authorization, accept, origin, Cache-Control,token, X-Requested-With")
		c.Writer.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS, GET, PUT, DELETE")

		if c.Request.Method == "OPTIONS" {
			c.AbortWithStatus(204)
			return
		}

		c.Next()
	}
}

func ValidateRequest() gin.HandlerFunc {
	return func(c *gin.Context) {
		var path = c.FullPath()
		var handler func() interface{}
		if strings.Index(path, "admin") >= 0 {
			handler = requestmapping.BackendRequestMap[path]
		} else {
			handler = requestmapping.FrontRequestMap[path]
		}
		if handler == nil {
			utils.Log(c, "path", path)
			controllers.HandRes(c, nil, errorcode.NotFound)
		} else {
			v := handler()
			msg, err := controllers.GenRequest(c, v)
			if err != nil {
				utils.Log(c, "path", path)
				controllers.HandRes(c, nil, errorcode.ParamError.Wrap(fmt.Errorf("%s", strings.Join(msg, ","))))
			} else {
				c.Set("request", v)
				c.Next()
			}

		}
	}
}