package system

import (
	"context"
	"io"

	"kra/internal/service/dto"
)

func (s *MediaService) InitUpload(ctx context.Context, userID uint, name, hash string, size, chunkSize int64, total int) (*dto.InitUploadResponse, error) {
	session, media, chunks, err := s.uc.InitUpload(ctx, userID, name, hash, size, chunkSize, total)
	if err != nil {
		return nil, err
	}
	if media != nil {
		// The compatible response leaves UploadedChunks nil on an instant-upload hit, producing
		// JSON null while still returning uploadId: 0.
		return &dto.InitUploadResponse{Instant: true, Media: mediaDTO(media)}, nil
	}
	return &dto.InitUploadResponse{Instant: false, UploadID: session.ID, UploadedChunks: chunks, Media: nil}, nil
}
func (s *MediaService) SaveChunk(ctx context.Context, userID, uploadID uint, index int, hash string, reader io.Reader) error {
	return s.uc.SaveChunk(ctx, userID, uploadID, index, hash, reader)
}
func (s *MediaService) CompleteUpload(ctx context.Context, userID, uploadID uint) (*dto.MediaResponse, error) {
	v, err := s.uc.CompleteUpload(ctx, userID, uploadID, "")
	if err != nil {
		return nil, err
	}
	return mediaDTO(v), nil
}
func (s *MediaService) CancelUpload(ctx context.Context, userID, uploadID uint) error {
	return s.uc.CancelUpload(ctx, userID, uploadID)
}