package jwt

import (
	"errors"
	"github.com/dgrijalva/jwt-go"
	"time"
)

type Playload struct {
	UserId string
	Phone  string
	Expire int64
	Role   int //角色信息
}

func (p *Playload) Valid() error {
	//目前这里想到的是验证超时
	if p.Expire < time.Now().Unix() {
		return errors.New("timeout")
	}
	return nil
}
func GenerateToken(pl *Playload, secretKey string) (string, error) {
	token := jwt.NewWithClaims(jwt.SigningMethodHS256, pl)
	return token.SignedString([]byte(secretKey))
}

func ParseToken(tokenStr string, secretKey string) (*Playload, error) {
	var pl Playload
	token, err := jwt.ParseWithClaims(tokenStr, &pl, func(token *jwt.Token) (interface{}, error) {
		return []byte(secretKey), nil
	})
	if err != nil {
		return nil, err
	}
	if claims, ok := token.Claims.(*Playload); ok {
		return claims, nil
	}
	return nil, errors.New("not type")
}