// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-present Vikunja and contributors. All rights reserved.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package user

import (
	"code.vikunja.io/api/pkg/db"

	"xorm.io/xorm"
)

func GenerateNewCaldavToken(u *User) (token *Token, err error) {
	s := db.NewSession()
	defer s.Close()

	token, err = generateHashedToken(s, u, TokenCaldavAuth)
	if err != nil {
		_ = s.Rollback()
		return nil, err
	}

	if err = s.Commit(); err != nil {
		return nil, err
	}

	return token, nil
}

func GetCaldavTokens(u *User) (tokens []*Token, err error) {
	s := db.NewSession()
	defer s.Close()

	return getTokensForKind(s, u, TokenCaldavAuth)
}

// GetCaldavTokensWithSession is like GetCaldavTokens but uses an existing
// database session instead of creating a new one. This avoids nested sessions
// which cause deadlocks with SQLite's single-writer model.
func GetCaldavTokensWithSession(s *xorm.Session, u *User) (tokens []*Token, err error) {
	return getTokensForKind(s, u, TokenCaldavAuth)
}

func DeleteCaldavTokenByID(u *User, id int64) error {
	s := db.NewSession()
	defer s.Close()

	err := removeTokenByID(s, u, TokenCaldavAuth, id)
	if err != nil {
		_ = s.Rollback()
		return err
	}

	return s.Commit()
}