package repositories

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

// CommentRepository defines CRUD methods specific to Comment.
type CommentRepository interface {
	BaseRepository[models.Comment]
	ListByUserID(ctx context.Context, userID uint) ([]models.Comment, error)
	ListByWorkID(ctx context.Context, workID uint) ([]models.Comment, error)
	ListByTranslationID(ctx context.Context, translationID uint) ([]models.Comment, error)
	ListByParentID(ctx context.Context, parentID uint) ([]models.Comment, error)
}

type commentRepository struct {
	BaseRepository[models.Comment]
	db *gorm.DB
}

// NewCommentRepository creates a new CommentRepository.
func NewCommentRepository(db *gorm.DB) CommentRepository {
	return &commentRepository{
		BaseRepository: NewBaseRepositoryImpl[models.Comment](db),
		db:             db,
	}
}

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

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

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

// ListByParentID finds comments by parent ID
func (r *commentRepository) ListByParentID(ctx context.Context, parentID uint) ([]models.Comment, error) {
	var comments []models.Comment
	if err := r.db.WithContext(ctx).Where("parent_id = ?", parentID).Find(&comments).Error; err != nil {
		return nil, err
	}
	return comments, nil
}