81 lines
3.2 KiB
Dart
81 lines
3.2 KiB
Dart
import 'dart:io';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:share_plus/share_plus.dart';
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import 'package:drift/drift.dart' hide DatabaseConnectionUser;
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import '../database/database.dart';
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class ExportService {
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final AppDatabase _db;
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ExportService(this._db);
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Future<void> exportRide(int rideId, {bool asGpx = true}) async {
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final telemetry = await (_db.select(_db.telemetrySamples)
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..where((t) => t.rideId.equals(rideId))
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..orderBy([(t) => OrderingTerm(expression: t.timestamp)])
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).get();
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if (telemetry.isEmpty) return;
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final dir = await getTemporaryDirectory();
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if (asGpx) {
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final file = File('${dir.path}/ride_$rideId.gpx');
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await file.writeAsString(_generateGpx(telemetry));
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// ignore: deprecated_member_use
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await Share.shareXFiles([XFile(file.path)], text: 'My Motorcycle Ride (GPX)');
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} else {
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final file = File('${dir.path}/ride_$rideId.csv');
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await file.writeAsString(_generateCsv(telemetry));
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// ignore: deprecated_member_use
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await Share.shareXFiles([XFile(file.path)], text: 'My Motorcycle Ride (CSV)');
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}
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}
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String _generateGpx(List<TelemetrySample> telemetry) {
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final sb = StringBuffer();
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sb.writeln('<?xml version="1.0" encoding="UTF-8"?>');
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sb.writeln('<gpx version="1.1" creator="MotorcycleDash">');
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sb.writeln(' <trk>');
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sb.writeln(' <name>Ride</name>');
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sb.writeln(' <trkseg>');
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for (final t in telemetry) {
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if (t.latitude != null && t.longitude != null) {
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sb.writeln(' <trkpt lat="${t.latitude}" lon="${t.longitude}">');
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if (t.altitude != null) {
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sb.writeln(' <ele>${t.altitude}</ele>');
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}
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sb.writeln(' <time>${t.timestamp.toUtc().toIso8601String()}</time>');
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// Extend GPX with our custom data
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sb.writeln(' <extensions>');
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sb.writeln(' <speed>${t.speed ?? 0}</speed>');
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sb.writeln(' <heading>${t.heading ?? 0}</heading>');
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sb.writeln(' <lean>${t.leanAngle ?? 0}</lean>');
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sb.writeln(' <longitudinalG>${t.longitudinalG ?? 0}</longitudinalG>');
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sb.writeln(' <lateralG>${t.lateralG ?? 0}</lateralG>');
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sb.writeln(' </extensions>');
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sb.writeln(' </trkpt>');
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}
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}
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sb.writeln(' </trkseg>');
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sb.writeln(' </trk>');
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sb.writeln('</gpx>');
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return sb.toString();
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}
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String _generateCsv(List<TelemetrySample> telemetry) {
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final sb = StringBuffer();
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sb.writeln('timestamp,latitude,longitude,altitude,speed,heading,leanAngle,pitchAngle,accelX,accelY,accelZ,longitudinalG,lateralG');
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for (final t in telemetry) {
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sb.writeln('${t.timestamp.toIso8601String()},${t.latitude ?? ""},${t.longitude ?? ""},${t.altitude ?? ""},${t.speed ?? ""},${t.heading ?? ""},${t.leanAngle ?? ""},${t.pitchAngle ?? ""},${t.accelX ?? ""},${t.accelY ?? ""},${t.accelZ ?? ""},${t.longitudinalG ?? ""},${t.lateralG ?? ""}');
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}
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return sb.toString();
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}
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}
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final exportServiceProvider = Provider<ExportService>((ref) {
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final db = ref.watch(databaseProvider);
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return ExportService(db);
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});
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