// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package migrations

import (
	"xorm.io/builder"
	"xorm.io/xorm"
	"xorm.io/xorm/schemas"
)

func recreateUserTableToFixDefaultValues(x *xorm.Engine) error {
	type User struct {
		ID                           int64  `xorm:"pk autoincr"`
		LowerName                    string `xorm:"UNIQUE NOT NULL"`
		Name                         string `xorm:"UNIQUE NOT NULL"`
		FullName                     string
		Email                        string `xorm:"NOT NULL"`
		KeepEmailPrivate             bool
		EmailNotificationsPreference string `xorm:"VARCHAR(20) NOT NULL DEFAULT 'enabled'"`
		Passwd                       string `xorm:"NOT NULL"`
		PasswdHashAlgo               string `xorm:"NOT NULL DEFAULT 'argon2'"`

		MustChangePassword bool `xorm:"NOT NULL DEFAULT false"`

		LoginType   int
		LoginSource int64 `xorm:"NOT NULL DEFAULT 0"`
		LoginName   string
		Type        int
		Location    string
		Website     string
		Rands       string `xorm:"VARCHAR(10)"`
		Salt        string `xorm:"VARCHAR(10)"`
		Language    string `xorm:"VARCHAR(5)"`
		Description string

		CreatedUnix   int64 `xorm:"INDEX created"`
		UpdatedUnix   int64 `xorm:"INDEX updated"`
		LastLoginUnix int64 `xorm:"INDEX"`

		LastRepoVisibility bool
		MaxRepoCreation    int `xorm:"NOT NULL DEFAULT -1"`

		// Permissions
		IsActive                bool `xorm:"INDEX"`
		IsAdmin                 bool
		IsRestricted            bool `xorm:"NOT NULL DEFAULT false"`
		AllowGitHook            bool
		AllowImportLocal        bool
		AllowCreateOrganization bool `xorm:"DEFAULT true"`
		ProhibitLogin           bool `xorm:"NOT NULL DEFAULT false"`

		// Avatar
		Avatar          string `xorm:"VARCHAR(2048) NOT NULL"`
		AvatarEmail     string `xorm:"NOT NULL"`
		UseCustomAvatar bool

		// Counters
		NumFollowers int
		NumFollowing int `xorm:"NOT NULL DEFAULT 0"`
		NumStars     int
		NumRepos     int

		// For organization
		NumTeams                  int
		NumMembers                int
		Visibility                int  `xorm:"NOT NULL DEFAULT 0"`
		RepoAdminChangeTeamAccess bool `xorm:"NOT NULL DEFAULT false"`

		// Preferences
		DiffViewStyle       string `xorm:"NOT NULL DEFAULT ''"`
		Theme               string `xorm:"NOT NULL DEFAULT ''"`
		KeepActivityPrivate bool   `xorm:"NOT NULL DEFAULT false"`
	}

	if _, err := x.Where(builder.IsNull{"keep_activity_private"}).
		Cols("keep_activity_private").
		Update(User{KeepActivityPrivate: false}); err != nil {
		return err
	}

	switch x.Dialect().URI().DBType {
	case schemas.MYSQL:
		_, err := x.Exec("ALTER TABLE `user` MODIFY COLUMN keep_activity_private tinyint(1) DEFAULT 0 NOT NULL;")
		return err
	case schemas.POSTGRES:
		if _, err := x.Exec("ALTER TABLE `user` ALTER COLUMN keep_activity_private SET NOT NULL;"); err != nil {
			return err
		}
		_, err := x.Exec("ALTER TABLE `user` ALTER COLUMN keep_activity_private SET DEFAULT false;")
		return err
	}

	sess := x.NewSession()
	defer sess.Close()
	if err := sess.Begin(); err != nil {
		return err
	}

	if err := recreateTable(sess, new(User)); err != nil {
		return err
	}

	return sess.Commit()
}