checkpoint 1

internal/sync/sync.go

@@ -0,0 +1,145 @@
+package sync
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/yourusername/garminsync/internal/database"
+	"github.com/yourusername/garminsync/internal/garmin"
+	"github.com/yourusername/garminsync/internal/parser"
+)
+
+type SyncService struct {
+	garminClient *garmin.Client
+	db           *database.SQLiteDB
+	dataDir      string
+}
+
+func NewSyncService(garminClient *garmin.Client, db *database.SQLiteDB, dataDir string) *SyncService {
+	return &SyncService{
+		garminClient: garminClient,
+		db:           db,
+		dataDir:      dataDir,
+	}
+}
+
+func (s *SyncService) Sync(ctx context.Context) error {
+	startTime := time.Now()
+	fmt.Printf("Starting sync at %s\n", startTime.Format(time.RFC3339))
+	defer func() {
+		fmt.Printf("Sync completed in %s\n", time.Since(startTime))
+	}()
+
+	// 1. Fetch latest activities from Garmin
+	activities, err := s.garminClient.GetActivities(0, 100)
+	if err != nil {
+		return fmt.Errorf("failed to get activities: %w", err)
+	}
+	fmt.Printf("Found %d activities on Garmin\n", len(activities))
+
+	// 2. Sync each activity
+	for i, activity := range activities {
+		select {
+		case <-ctx.Done():
+			return ctx.Err()
+		default:
+			fmt.Printf("[%d/%d] Processing activity %d...\n", i+1, len(activities), activity.ActivityID)
+			if err := s.syncActivity(&activity); err != nil {
+				fmt.Printf("Error syncing activity %d: %v\n", activity.ActivityID, err)
+				// Continue with next activity on error
+			}
+		}
+	}
+
+	return nil
+}
+
+func (s *SyncService) syncActivity(activity *garmin.GarminActivity) error {
+	// Check if activity exists in database
+	dbActivity, err := s.db.GetActivity(activity.ActivityID)
+	if err == nil {
+		// Activity exists - check if already downloaded
+		if dbActivity.Downloaded {
+			fmt.Printf("Activity %d already downloaded\n", activity.ActivityID)
+			return nil
+		}
+	} else {
+		// Activity not in database - create new record
+		dbActivity = &database.Activity{
+			ActivityID: activity.ActivityID,
+			StartTime:  parseTime(activity.StartTimeLocal),
+		}
+		
+		// Add basic info if available
+		if activityType, ok := activity.ActivityType["typeKey"]; ok {
+			dbActivity.ActivityType = activityType.(string)
+		}
+		dbActivity.Duration = int(activity.Duration)
+		dbActivity.Distance = activity.Distance
+		
+		if err := s.db.CreateActivity(dbActivity); err != nil {
+			return fmt.Errorf("failed to create activity: %w", err)
+		}
+	}
+
+	// Download the activity file (FIT format)
+	fileData, err := s.garminClient.DownloadActivity(activity.ActivityID, "fit")
+	if err != nil {
+		return fmt.Errorf("failed to download activity: %w", err)
+	}
+
+	// Determine filename
+	filename := filepath.Join(
+		s.dataDir,
+		"activities",
+		fmt.Sprintf("%d_%s.fit", activity.ActivityID, activity.StartTimeLocal[:10]),
+	)
+
+	// Create directories if needed
+	if err := os.MkdirAll(filepath.Dir(filename), 0755); err != nil {
+		return fmt.Errorf("failed to create directory: %w", err)
+	}
+
+	// Save file
+	if err := os.WriteFile(filename, fileData, 0644); err != nil {
+		return fmt.Errorf("failed to write file: %w", err)
+	}
+
+	// Parse the file to extract additional metrics
+	metrics, err := parser.NewFITParser().ParseData(fileData)
+	if err != nil {
+		return fmt.Errorf("failed to parse activity file: %w", err)
+	}
+
+	// Update activity with parsed metrics
+	dbActivity.Duration = int(metrics.Duration.Seconds())
+	dbActivity.Distance = metrics.Distance
+	dbActivity.MaxHeartRate = metrics.MaxHeartRate
+	dbActivity.AvgHeartRate = metrics.AvgHeartRate
+	dbActivity.AvgPower = metrics.AvgPower
+	dbActivity.Calories = metrics.Calories
+	dbActivity.Downloaded = true
+	dbActivity.Filename = filename
+	dbActivity.FileType = "fit"
+
+	// Save updated activity
+	if err := s.db.UpdateActivity(dbActivity); err != nil {
+		return fmt.Errorf("failed to update activity: %w", err)
+	}
+
+	fmt.Printf("Successfully synced activity %d\n", activity.ActivityID)
+	return nil
+}
+
+func parseTime(timeStr string) time.Time {
+	// Garmin time format: "2023-08-15 12:30:45"
+	t, err := time.Parse("2006-01-02 15:04:05", timeStr)
+	if err != nil {
+		return time.Now()
+	}
+	return t
+}