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 CreateSource(ctx context.Context, source models.Source) (models.Source, error) {
	if client == nil {
		return models.Source{}, &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

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

	return source, nil
}

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

	if source == nil {
		return &otterError.EntityValidationFailed{Reason: otterError.SourceListIsEmpty}
	}

	if len(source) == 0 {
		return &otterError.EntityValidationFailed{Reason: otterError.SourceListIsEmpty}
	}

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

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

	return nil
}

func UpdateSource(ctx context.Context, source models.Source) error {
	if client == nil {
		return &otterError.Database{Reason: otterError.DatabaseIsNotConnected}
	}

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

	updateSource := models.Source{
		DisplayName: source.DisplayName,
		Domain:      source.Domain,
		Icon:        source.Icon,
	}

	result := client.WithContext(ctx).Model(&updateSource).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 GetSourceByID(ctx context.Context, id models.SourceID) (models.Source, error) {
	var source models.Source

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

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

	if len(id) != 25 {
		return models.Source{}, &otterError.EntityValidationFailed{Reason: otterError.SourceIDToShort}
	}

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

	return source, nil
}

func GetSourceByDomain(ctx context.Context, sourceDomain models.SourceDomain) (models.Source, error) {
	var source models.Source

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

	if len(sourceDomain) == 0 {
		return models.Source{}, &otterError.EntityValidationFailed{Reason: otterError.SourceDomainIsEmpty}
	}

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

	return source, nil
}

func DeleteSource(ctx context.Context, id models.SourceID) error {
	var source models.Source

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

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

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

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

	return nil
}