package jwtx

import (
	"time"

	"github.com/golang-jwt/jwt/v5"
)

type Claims struct {
	UserId    int64  `json:"user_id"`
	LoginType string `json:"login_type"`
	IsAdmin   bool   `json:"is_admin"`
	jwt.RegisteredClaims
}

func GenerateToken(secret string, userId int64, loginType string, isAdmin bool, expire int64) (string, error) {
	claims := Claims{
		UserId:    userId,
		LoginType: loginType,
		IsAdmin:   isAdmin,
		RegisteredClaims: jwt.RegisteredClaims{
			ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Duration(expire) * time.Second)),
			IssuedAt:  jwt.NewNumericDate(time.Now()),
		},
	}
	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
	return token.SignedString([]byte(secret))
}

func ParseToken(tokenStr string, secret string) (*Claims, error) {
	token, err := jwt.ParseWithClaims(tokenStr, &Claims{}, func(token *jwt.Token) (interface{}, error) {
		return []byte(secret), nil
	})
	if err != nil {
		return nil, err
	}
	if claims, ok := token.Claims.(*Claims); ok && token.Valid {
		return claims, nil
	}
	return nil, jwt.ErrSignatureInvalid
}