package sql

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

	"go.opentelemetry.io/otel"
	"go.opentelemetry.io/otel/trace"
	"gorm.io/gorm"
)

type sourceRepository struct {
	domain.BaseRepository[domain.Source]
	db     *gorm.DB
	tracer trace.Tracer
}

// NewSourceRepository creates a new SourceRepository.
func NewSourceRepository(db *gorm.DB, cfg *config.Config) domain.SourceRepository {
	return &sourceRepository{
		BaseRepository: NewBaseRepositoryImpl[domain.Source](db, cfg),
		db:             db,
		tracer:         otel.Tracer("source.repository"),
	}
}

// ListByWorkID finds sources by work ID
func (r *sourceRepository) ListByWorkID(ctx context.Context, workID uint) ([]domain.Source, error) {
	ctx, span := r.tracer.Start(ctx, "ListByWorkID")
	defer span.End()
	var sources []domain.Source
	if err := r.db.WithContext(ctx).Joins("JOIN work_sources ON work_sources.source_id = sources.id").
		Where("work_sources.work_id = ?", workID).
		Find(&sources).Error; err != nil {
		return nil, err
	}
	return sources, nil
}

// FindByURL finds a source by URL
func (r *sourceRepository) FindByURL(ctx context.Context, url string) (*domain.Source, error) {
	ctx, span := r.tracer.Start(ctx, "FindByURL")
	defer span.End()
	var source domain.Source
	if err := r.db.WithContext(ctx).Where("url = ?", url).First(&source).Error; err != nil {
		if errors.Is(err, gorm.ErrRecordNotFound) {
			return nil, domain.ErrEntityNotFound
		}
		return nil, err
	}
	return &source, nil
}