tercul-backend/internal/data/sql/copyright_repository.go

package sql

import (
	"context"
	"errors"
	"tercul/internal/domain"

	"gorm.io/gorm"
)

type copyrightRepository struct {
	domain.BaseRepository[domain.Copyright]
	db *gorm.DB
}

// NewCopyrightRepository creates a new CopyrightRepository.
func NewCopyrightRepository(db *gorm.DB) domain.CopyrightRepository {
	return &copyrightRepository{
		BaseRepository: NewBaseRepositoryImpl[domain.Copyright](db),
		db:             db,
	}
}


// AddTranslation adds a translation to a copyright
func (r *copyrightRepository) AddTranslation(ctx context.Context, translation *domain.CopyrightTranslation) error {
	return r.db.WithContext(ctx).Create(translation).Error
}

// GetTranslations gets all translations for a copyright
func (r *copyrightRepository) GetTranslations(ctx context.Context, copyrightID uint) ([]domain.CopyrightTranslation, error) {
	var translations []domain.CopyrightTranslation
	err := r.db.WithContext(ctx).Where("copyright_id = ?", copyrightID).Find(&translations).Error
	return translations, err
}

// GetTranslationByLanguage gets a specific translation by language code
func (r *copyrightRepository) GetTranslationByLanguage(ctx context.Context, copyrightID uint, languageCode string) (*domain.CopyrightTranslation, error) {
	var translation domain.CopyrightTranslation
	err := r.db.WithContext(ctx).Where("copyright_id = ? AND language_code = ?", copyrightID, languageCode).First(&translation).Error
	if err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, ErrEntityNotFound
		}
		return nil, err
	}
	return &translation, nil
}

func (r *copyrightRepository) AddCopyrightToWork(ctx context.Context, workID uint, copyrightID uint) error {
	work := &domain.Work{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: workID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(work).Association("Copyrights").Append(copyright)
}

func (r *copyrightRepository) RemoveCopyrightFromWork(ctx context.Context, workID uint, copyrightID uint) error {
	work := &domain.Work{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: workID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(work).Association("Copyrights").Delete(copyright)
}

func (r *copyrightRepository) AddCopyrightToAuthor(ctx context.Context, authorID uint, copyrightID uint) error {
	author := &domain.Author{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: authorID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(author).Association("Copyrights").Append(copyright)
}

func (r *copyrightRepository) RemoveCopyrightFromAuthor(ctx context.Context, authorID uint, copyrightID uint) error {
	author := &domain.Author{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: authorID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(author).Association("Copyrights").Delete(copyright)
}

func (r *copyrightRepository) AddCopyrightToBook(ctx context.Context, bookID uint, copyrightID uint) error {
	book := &domain.Book{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: bookID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(book).Association("Copyrights").Append(copyright)
}

func (r *copyrightRepository) RemoveCopyrightFromBook(ctx context.Context, bookID uint, copyrightID uint) error {
	book := &domain.Book{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: bookID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(book).Association("Copyrights").Delete(copyright)
}

func (r *copyrightRepository) AddCopyrightToPublisher(ctx context.Context, publisherID uint, copyrightID uint) error {
	publisher := &domain.Publisher{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: publisherID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(publisher).Association("Copyrights").Append(copyright)
}

func (r *copyrightRepository) RemoveCopyrightFromPublisher(ctx context.Context, publisherID uint, copyrightID uint) error {
	publisher := &domain.Publisher{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: publisherID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(publisher).Association("Copyrights").Delete(copyright)
}

func (r *copyrightRepository) AddCopyrightToSource(ctx context.Context, sourceID uint, copyrightID uint) error {
	source := &domain.Source{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: sourceID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(source).Association("Copyrights").Append(copyright)
}

func (r *copyrightRepository) RemoveCopyrightFromSource(ctx context.Context, sourceID uint, copyrightID uint) error {
	source := &domain.Source{TranslatableModel: domain.TranslatableModel{BaseModel: domain.BaseModel{ID: sourceID}}}
	copyright := &domain.Copyright{BaseModel: domain.BaseModel{ID: copyrightID}}
	return r.db.WithContext(ctx).Model(source).Association("Copyrights").Delete(copyright)
}