package meteo

import (
	"context"
	"io"
	"log/slog"
)

type Service struct {
	csv  CSV
	repo Repository
}

func NewService(repo Repository) *Service {
	return &Service{
		csv:  CSV{},
		repo: repo,
	}
}

func (s *Service) IngestCSV(ctx context.Context, r io.Reader, fs *FileStats) error {
	accepted, rejected, err := s.csv.Parse(r)
	if err != nil {
		return err
	}

	result, err := s.repo.InsertMeteoDataTX(ctx, InsertMeteoDataParams{
		FileChecksum: fs.FileChecksum,
		Accepted:     accepted,
		Rejected:     rejected,
	})
	if err != nil {
		slog.Error("error inserting meteo data", "err", err)
		return err
	}

	fs.BatchID = result.BatchID
	fs.RowsInserted = result.AcceptedCount
	fs.RowsRejected = result.RejectedCount

	return nil
}

func (s *Service) UpdateElapsedMS(ctx context.Context, batchID, elapsedMS int) error {
	if err := s.repo.UpdateBatchElapsedTime(ctx, batchID, elapsedMS); err != nil {
		slog.Error("error updating batch elapsed time", "err", err)
	}

	return nil
}

func (s *Service) GetMeteoData(params GetMeteoData) ([]MeteoData, error) {
	return []MeteoData{}, nil
}