package Database

import (
	"errors"
	"fmt"

	"git.tovijaeschke.xyz/tovi/SuddenImpactRecords/Models"

	"gorm.io/gorm"
	"gorm.io/gorm/clause"
)

func GetUserById(id string) (Models.User, error) {
	var (
		userData Models.User
		err      error
	)

	err = DB.Preload(clause.Associations).
		First(&userData, "id = ?", id).
		Error

	userData.Password = ""

	return userData, err
}

func GetUserByEmail(email string) (Models.User, error) {
	var (
		userData Models.User
		err      error
	)

	err = DB.Preload(clause.Associations).
		First(&userData, "email = ?", email).
		Error

	return userData, err
}

func GetUsers(page, pageSize int, search string) ([]Models.User, error) {
	var (
		users  []Models.User
		query  *gorm.DB
		offset int
		i      int
		err    error
	)

	switch {
	case pageSize > 100:
		pageSize = 100
	case pageSize <= 0:
		pageSize = 10
	}

	offset = page * pageSize

	search = fmt.Sprintf("%%%s%%", search)

	query = DB.Model(Models.User{}).
		Offset(offset).
		Limit(pageSize).
		Order("created_at desc")

	if search != "" {
		query = query.
			Where("CONCAT_WS(' ', first_name, last_name) LIKE ?", search).
			Or("email LIKE ?", search)
	}

	err = query.
		Find(&users).
		Error

	for i, _ = range users {
		users[i].Password = ""
	}

	return users, err
}

func CheckUniqueEmail(email string) error {
	var (
		exists bool
		err    error
	)

	err = DB.Model(Models.User{}).
		Select("count(*) > 0").
		Where("email = ?", email).
		Find(&exists).
		Error

	if err != nil {
		return err
	}

	if exists {
		return errors.New("Invalid email")
	}

	return nil
}

func CreateUser(userData *Models.User) error {
	var (
		err error
	)

	err = DB.Session(&gorm.Session{FullSaveAssociations: true}).
		Create(userData).
		Error

	userData.Password = ""

	return err
}

func UpdateUser(id string, userData *Models.User) error {
	var (
		err error
	)
	err = DB.Model(&userData).
		Omit("id", "created_at", "updated_at", "deleted_at").
		Where("id = ?", id).
		Updates(userData).
		Error

	userData.Password = ""

	return err
}

func DeleteUser(userData *Models.User) error {
	return DB.Session(&gorm.Session{FullSaveAssociations: true}).
		Delete(userData).
		Error
}