tercul-backend/internal/repositories/like_repository.go

package repositories

import (
	"context"
	"gorm.io/gorm"
	"tercul/internal/models"
)

// LikeRepository defines CRUD methods specific to Like.
type LikeRepository interface {
	BaseRepository[models.Like]
	ListByUserID(ctx context.Context, userID uint) ([]models.Like, error)
	ListByWorkID(ctx context.Context, workID uint) ([]models.Like, error)
	ListByTranslationID(ctx context.Context, translationID uint) ([]models.Like, error)
	ListByCommentID(ctx context.Context, commentID uint) ([]models.Like, error)
}

type likeRepository struct {
	BaseRepository[models.Like]
	db *gorm.DB
}

// NewLikeRepository creates a new LikeRepository.
func NewLikeRepository(db *gorm.DB) LikeRepository {
	return &likeRepository{
		BaseRepository: NewBaseRepositoryImpl[models.Like](db),
		db:             db,
	}
}

// ListByUserID finds likes by user ID
func (r *likeRepository) ListByUserID(ctx context.Context, userID uint) ([]models.Like, error) {
	var likes []models.Like
	if err := r.db.WithContext(ctx).Where("user_id = ?", userID).Find(&likes).Error; err != nil {
		return nil, err
	}
	return likes, nil
}

// ListByWorkID finds likes by work ID
func (r *likeRepository) ListByWorkID(ctx context.Context, workID uint) ([]models.Like, error) {
	var likes []models.Like
	if err := r.db.WithContext(ctx).Where("work_id = ?", workID).Find(&likes).Error; err != nil {
		return nil, err
	}
	return likes, nil
}

// ListByTranslationID finds likes by translation ID
func (r *likeRepository) ListByTranslationID(ctx context.Context, translationID uint) ([]models.Like, error) {
	var likes []models.Like
	if err := r.db.WithContext(ctx).Where("translation_id = ?", translationID).Find(&likes).Error; err != nil {
		return nil, err
	}
	return likes, nil
}

// ListByCommentID finds likes by comment ID
func (r *likeRepository) ListByCommentID(ctx context.Context, commentID uint) ([]models.Like, error) {
	var likes []models.Like
	if err := r.db.WithContext(ctx).Where("comment_id = ?", commentID).Find(&likes).Error; err != nil {
		return nil, err
	}
	return likes, nil
}