package database

import (
	"context"
	"errors"
	otterError "git.anthrove.art/Anthrove/otter-space-sdk/v2/pkg/error"
	"git.anthrove.art/Anthrove/otter-space-sdk/v2/pkg/models"
	"gorm.io/gorm"
)

func CreateUserFavorite(ctx context.Context, userFav models.UserFavorite) (models.UserFavorite, error) {
	if client == nil {
		return models.UserFavorite{}, &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

	result := client.WithContext(ctx).Create(&userFav)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {
			return models.UserFavorite{}, &otterError.Database{Reason: otterError.DuplicateKey}
		}
		return models.UserFavorite{}, result.Error
	}

	return userFav, nil
}

func CreateUserFavoriteInBatch(ctx context.Context, userFav []models.UserFavorite, batchSize int) error {
	if client == nil {
		return &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

	if userFav == nil {
		return &otterError.EntityValidationFailed{Reason: otterError.UserFavoriteListIsEmpty}
	}

	if len(userFav) == 0 {
		return &otterError.EntityValidationFailed{Reason: otterError.UserFavoriteListIsEmpty}
	}

	if batchSize == 0 {
		return &otterError.EntityValidationFailed{Reason: otterError.BatchSizeIsEmpty}
	}

	result := client.WithContext(ctx).CreateInBatches(&userFav, batchSize)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrDuplicatedKey) {
			return &otterError.Database{Reason: otterError.DuplicateKey}
		}
		return result.Error
	}

	return nil
}

func UpdateUserFavorite(ctx context.Context, userFav models.UserFavorite) error {
	if client == nil {
		return &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

	if len(userFav.ID) == 0 {
		return &otterError.EntityValidationFailed{Reason: otterError.UserFavoriteIDIsEmpty}
	}

	if !userFav.DeletedAt.Valid {
		return nil
	}

	result := client.WithContext(ctx).Model(&userFav).Update("deleted_at", gorm.DeletedAt{})
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return &otterError.Database{Reason: otterError.NoDataFound}
		}
		return result.Error
	}

	return nil
}

func GetUserFavoritesByID(ctx context.Context, id models.UserFavoriteID) (models.UserFavorite, error) {
	var userFavorites models.UserFavorite

	if client == nil {
		return models.UserFavorite{}, &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

	if len(id) == 0 {
		return models.UserFavorite{}, &otterError.EntityValidationFailed{Reason: otterError.UserFavoriteIDIsEmpty}
	}

	result := client.WithContext(ctx).First(&userFavorites, "id = ?", id)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return models.UserFavorite{}, &otterError.Database{Reason: otterError.NoDataFound}
		}
		return models.UserFavorite{}, result.Error
	}

	return userFavorites, nil
}

func DeleteUserFavorite(ctx context.Context, id models.UserFavoriteID) error {
	var userFavorite models.UserFavorite

	if client == nil {
		return &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

	if len(id) == 0 {
		return &otterError.EntityValidationFailed{Reason: otterError.UserFavoriteIDIsEmpty}
	}

	if len(id) != 25 {
		return &otterError.EntityValidationFailed{Reason: otterError.UserFavoriteIDToShort}
	}

	result := client.WithContext(ctx).Delete(&userFavorite, "id = ?", id)
	if result.Error != nil {
		if errors.Is(result.Error, gorm.ErrRecordNotFound) {
			return &otterError.Database{Reason: otterError.NoDataFound}
		}
		return result.Error
	}

	return nil
}