package hdl

import (
	"applet/app/e"
	"applet/app/md"
	"applet/app/utils"
	"applet/app/utils/cache"
	"errors"
	"time"

	"github.com/gin-gonic/gin"
)

func GetAuthorizationCode(c *gin.Context) {
	masterId := c.Query("master_id")
	cacheKey := md.ZhimengAuthorizationCodeCacheKey
	authorizationCode := utils.RandString(32)
	_, err := cache.HSet(cacheKey, authorizationCode, masterId)
	if err != nil {
		e.OutErr(c, e.ERR, err.Error())
		return
	}
	//设置过期日期
	_, err = cache.Expire(cacheKey, md.ZhimengAuthorizationCodeCacheTime*30)
	if err != nil {
		e.OutErr(c, e.ERR, err.Error())
		return
	}
	e.OutSuc(c, map[string]interface{}{
		"authorization_code": authorizationCode,
	}, nil)
}

func GetToken(c *gin.Context) {
	authorizationCode := c.Query("authorization_code")
	cacheKey := md.ZhimengAuthorizationCodeCacheKey
	get, err := cache.HGetString(cacheKey, authorizationCode)
	if err != nil {
		e.OutErr(c, e.ERR, err.Error())
		return
	}
	if get == "" {
		e.OutErr(c, e.ERR, errors.New("授权码有误"))
		return
	}
	token, refreshToken, err := utils.GenToken(get)
	if err != nil {
		e.OutErr(c, e.ERR, err.Error())
		return
	}
	e.OutSuc(c, map[string]interface{}{
		"token":         token,
		"refresh_token": refreshToken,
		"master_id":     get,
	}, nil)
}

func RefreshToken(c *gin.Context) {
	var args struct {
		RefreshToken string `json:"refresh_token"`
	}
	if err := c.ShouldBindJSON(&args); err != nil {
		e.OutErr(c, e.ERR_INVALID_ARGS, err)
		return
	}
	//1、验证refresh_token正确性
	//验证token字符串
	claim, err := utils.ParseRToken(args.RefreshToken)
	if err != nil {
		e.OutErr(c, e.ERR_UNAUTHORIZED, errors.New("refresh_token 验证失败"))
		return
	}
	//过期判断
	if time.Now().Unix() > claim.ExpiresAt {
		e.OutErr(c, e.ERR_TOKEN_EXPIRE, errors.New("refresh_token 过期已失效"))
		return
	}

	//2、生成新的token && refresh_token
	token, refreshToken, err := utils.GenToken(claim.MasterId)
	e.OutSuc(c, map[string]interface{}{
		"token":         token,
		"refresh_token": refreshToken,
		"master_id":     claim.MasterId,
	}, nil)
}