package repositories

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

// ContributionRepository defines CRUD methods specific to Contribution.
type ContributionRepository interface {
	BaseRepository[models.Contribution]
	ListByUserID(ctx context.Context, userID uint) ([]models.Contribution, error)
	ListByReviewerID(ctx context.Context, reviewerID uint) ([]models.Contribution, error)
	ListByWorkID(ctx context.Context, workID uint) ([]models.Contribution, error)
	ListByTranslationID(ctx context.Context, translationID uint) ([]models.Contribution, error)
	ListByStatus(ctx context.Context, status string) ([]models.Contribution, error)
}

type contributionRepository struct {
	BaseRepository[models.Contribution]
	db *gorm.DB
}

// NewContributionRepository creates a new ContributionRepository.
func NewContributionRepository(db *gorm.DB) ContributionRepository {
	return &contributionRepository{
		BaseRepository: NewBaseRepositoryImpl[models.Contribution](db),
		db:             db,
	}
}

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

// ListByReviewerID finds contributions by reviewer ID
func (r *contributionRepository) ListByReviewerID(ctx context.Context, reviewerID uint) ([]models.Contribution, error) {
	var contributions []models.Contribution
	if err := r.db.WithContext(ctx).Where("reviewer_id = ?", reviewerID).Find(&contributions).Error; err != nil {
		return nil, err
	}
	return contributions, nil
}

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

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

// ListByStatus finds contributions by status
func (r *contributionRepository) ListByStatus(ctx context.Context, status string) ([]models.Contribution, error) {
	var contributions []models.Contribution
	if err := r.db.WithContext(ctx).Where("status = ?", status).Find(&contributions).Error; err != nil {
		return nil, err
	}
	return contributions, nil
}