データ永続化 API

// Get ALL locations currently stored in the database
final locations = await tl.Tracelet.getLocations();
 
for (final loc in locations) {
  print('Location: \${loc.coords.latitude}, \${loc.coords.longitude}');
}

// Get only the locations recorded on a specific date
final query = tl.SQLQuery(
  where: "timestamp >= ? AND timestamp <= ?",
  whereArgs: ["2024-01-01T00:00:00Z", "2024-01-01T23:59:59Z"],
  limit: 100,
  order: "timestamp DESC"
);
 
final specificLocations = await tl.Tracelet.getLocations(query);

// Count total un-synced locations
final count = await tl.Tracelet.getCount();
print('Pending locations to sync: \$count');
 
// You can also use SQL queries here
final highAccuracyCount = await tl.Tracelet.getCount(
  tl.SQLQuery(where: "accuracy <= 20")
);

// The locations still waiting to be delivered to your backend.
final pending = await tl.Tracelet.getPendingLocations();
 
// Just the queue depth (optimized — no records are loaded into memory).
final pendingCount = await tl.Tracelet.getPendingLocationCount();
print('Offline queue: \$pendingCount location(s) waiting to sync');

await tl.Tracelet.ready(tl.Config(
  persistence: tl.PersistenceConfig(
    // Purge records older than this many days. -1 retains forever.
    maxDaysToPersist: 3,
    // Never hold more than this many records; the oldest go first.
    // -1 is unlimited.
    maxRecordsToPersist: 5000,
  ),
));

await tl.Tracelet.destroyLocations();

final locations = await tl.Tracelet.getLocations();
 
if (locations.isNotEmpty) {
  final firstLocationId = locations.first.uuid;
  
  // Destroy just this specific location from the database
  await tl.Tracelet.destroyLocation(firstLocationId);
}

await tl.Tracelet.destroySyncedLocations();