package service

import (
	"github.com/gin-gonic/gin"
	"gorm.io/gorm"
	"mc-client-updater-server/pkg/dao"
	"mc-client-updater-server/pkg/dao/entity"
	"mc-client-updater-server/pkg/result"
	"time"
)

type TokenService struct {
	ctx *gin.Context
}

func NewTokenService(c *gin.Context) *TokenService {
	return &TokenService{ctx: c}
}

func (s *TokenService) VerifyToken(token string) (*entity.Token, bool) {
	res := result.NewResult(s.ctx)
	// 是否存在
	tokenRow := s.getToken(token)
	if tokenRow == nil {
		res.UnLogin()
		return nil, false
	}
	// 是否过期
	if tokenRow.TTL != 0 && int(time.Since(tokenRow.CreatedAt).Seconds()) > tokenRow.TTL {
		res.LoginExpired()
		return tokenRow, false
	}
	return tokenRow, true
}

func (s *TokenService) getToken(token string) *entity.Token {
	tokenRow := entity.Token{}
	tx := dao.DB().Where("token=?", token).Last(&tokenRow)
	if tx.Error == gorm.ErrRecordNotFound {
		return nil
	}
	return &tokenRow
}

func (s *TokenService) getTokenByUsername(username string) *entity.Token {
	tokenRow := entity.Token{}
	tx := dao.DB().Where("grant_to=?", username).Last(&tokenRow)
	if tx.Error == gorm.ErrRecordNotFound {
		return nil
	}
	return &tokenRow
}

func (s *TokenService) AddToken(tokenObj *entity.Token) error {
	tx := dao.DB().Create(tokenObj)
	return tx.Error
}