package model

import (
	"errors"
	"github.com/dgrijalva/jwt-go"
	"github.com/gin-gonic/gin"
	"net/http"
	"rocommon/util"
	"time"
)

func UserLogin(c *gin.Context) {
	userName := c.DefaultQuery("name", "") ///default ""
	pass := c.DefaultQuery("pass", "")

	if userName != "wtgame" || pass != "wtgame123" {
		c.JSON(http.StatusOK, "请输入正确的用户名和密码")
		return
	}

	claims := &jwt.StandardClaims{}
	claims.IssuedAt = util.GetTimeSeconds()
	claims.ExpiresAt = util.GetCurrentTimeNow().Add(time.Second * time.Duration(3600)).Unix()
	signedToken, err := getToken(claims)
	if err != nil {
		c.String(http.StatusNotFound, err.Error())
		return
	}
	c.Writer.Header().Add("Authorization", signedToken)
	c.String(http.StatusOK, signedToken)
}

func getToken(claims *jwt.StandardClaims) (string, error) {
	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
	signedToken, err := token.SignedString([]byte("wtgame123"))
	if err != nil {
		return "", errors.New("token invalid")
	}
	return signedToken, nil
}

func VerifyAction(tokenStr string) (*jwt.StandardClaims, error) {
	token, err := jwt.ParseWithClaims(tokenStr, &jwt.StandardClaims{},
		func(token *jwt.Token) (interface{}, error) {
			return []byte("wtgame123"), nil
		})
	if err != nil {
		return nil, errors.New("verify error")
	}
	claims, ok := token.Claims.(*jwt.StandardClaims)
	if !ok {
		return nil, errors.New("verify relogin")
	}
	if err := token.Claims.Valid(); err != nil {
		return nil, errors.New("verify relogin")
	}
	return claims, nil
}