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Persist the ground elevation profile with the mission

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The Mini-Altitude-Profile terrain data only ever lived in TerrainNotifier's
in-memory state (one slot, keyed by route). Every app restart, or every
switch away from and back to a mission, forced a full re-fetch of all
AWS Terrarium elevation tiles for the route - the noticeably slow load
the user reported for some missions was this happening on every visit,
not just once.

Adds a nullable terrainProfileJson column to the missions table
(schema v6->v7) and a saveTerrainProfile() repository method, kept
separate from the regular waypoint upsert() so an ordinary autosave never
clobbers an already-cached profile. TerrainNotifier persists a profile
right after a successful fetch (fire-and-forget) and gains restore(),
called from CurrentMissionMetaNotifier whenever a mission is loaded/
started so a previously fetched profile is available immediately -
ensureFor() still validates its routeKey before use, so a stale restored
profile is never shown for a route that has since changed.

Also included in mission export/import (MissionExportData/
ParsedMissionImport) so sharing a mission carries its terrain cache along
instead of forcing the recipient to refetch it.

Sample-count/resolution stays as-is for now (still fixed 30m spacing,
10-2000 samples) - adapting the sampling density to terrain variance
(e.g. coarser sampling over flat ground) is a separate follow-up.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Constantin Leue
2026-08-04 08:10:41 +02:00
co-authored by Claude Sonnet 5
parent 4e94102861
commit 35351140ae
11 changed files with 315 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
app/lib/ui/providers/mission_meta_provider.dart
+4
View File
@@ -7,6 +7,7 @@ import 'current_mission_provider.dart';
import 'database_provider.dart';
import 'follow_drone_provider.dart';
import 'map_controller_provider.dart';
import 'terrain_provider.dart';
/// Metadaten der aktuell in Bearbeitung befindlichen Mission - ergaenzt
/// currentMissionProvider (das nur die Wegpunkte haelt) um Name/Ort und die
@@ -58,6 +59,7 @@ class CurrentMissionMetaNotifier extends Notifier<MissionMeta> {
ref.read(currentMissionProvider.notifier).replaceAll(loaded.waypoints);
_suppressAutosave = false;
state = MissionMeta(id: missionId, name: loaded.name, placeName: loaded.placeName);
ref.read(terrainProvider.notifier).restore(loaded.terrainProfile);
_fitMapToWaypoints(loaded.waypoints);
}
@@ -77,6 +79,7 @@ class CurrentMissionMetaNotifier extends Notifier<MissionMeta> {
ref.read(currentMissionProvider.notifier).replaceAll(const []);
_suppressAutosave = false;
state = newState;
ref.read(terrainProvider.notifier).restore(null);
await ref.read(appSettingsRepositoryProvider).setCurrentMissionId(null);
}
@@ -89,6 +92,7 @@ class CurrentMissionMetaNotifier extends Notifier<MissionMeta> {
ref.read(currentMissionProvider.notifier).replaceAll(loaded.waypoints);
_suppressAutosave = false;
state = MissionMeta(id: id, name: loaded.name, placeName: loaded.placeName);
ref.read(terrainProvider.notifier).restore(loaded.terrainProfile);
_fitMapToWaypoints(loaded.waypoints);
await ref.read(appSettingsRepositoryProvider).setCurrentMissionId(id);
}
app/lib/ui/providers/terrain_provider.dart
+24 -1
View File
@@ -1,8 +1,11 @@
import 'dart:async';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../../domain/mission/terrain_math.dart';
import '../../domain/waypoint/flat_waypoint_list.dart';
import '../../services/terrain/terrain_service.dart';
import 'database_provider.dart';
final terrainServiceProvider = Provider<TerrainService>((ref) => TerrainService());
@@ -30,7 +33,22 @@ class TerrainNotifier extends Notifier<TerrainState> {
@override
TerrainState build() => const TerrainState();
Future<void> ensureFor(List<Waypoint> waypoints) async {
/// Uebernimmt ein bereits vorliegendes Profil direkt, ohne einen
/// Netzwerkabruf auszuloesen - genutzt beim Laden einer gespeicherten
/// Mission (Doku 3.9: persistiertes Profil) bzw. zum Zuruecksetzen beim
/// Start/Wechsel einer Mission. ensureFor() prueft dessen routeKey wie
/// gewohnt, bevor es angezeigt wird, ein veraltetes Profil wird also nie
/// faelschlich fuer eine inzwischen andere Route benutzt.
void restore(TerrainProfile? profile) {
state = TerrainState(profile: profile);
}
/// [missionId] persistiert ein frisch abgerufenes Profil an der
/// gespeicherten Mission (Doku 3.9), damit ein erneutes Oeffnen derselben
/// Mission nicht wieder alle Kacheln neu laden muss - null, solange die
/// Mission noch nie gespeichert wurde (dann bleibt nur der In-Memory-Cache
/// dieser Notifier-Instanz).
Future<void> ensureFor(List<Waypoint> waypoints, {int? missionId}) async {
if (waypoints.length < 2) {
if (state.profile != null) state = const TerrainState();
return;
@@ -48,6 +66,11 @@ class TerrainNotifier extends Notifier<TerrainState> {
return;
}
state = TerrainState(profile: profile ?? state.profile, loading: false);
if (profile != null && missionId != null) {
unawaited(
ref.read(missionRepositoryProvider).saveTerrainProfile(missionId, profile),
);
}
}
}
app/lib/ui/widgets/missions_drones_panel.dart
+7 -1
View File
@@ -229,6 +229,7 @@ class _MissionsDronesPanelState extends ConsumerState<MissionsDronesPanel> {
placeName: full.placeName,
createdAt: full.createdAt,
waypoints: full.waypoints,
terrainProfile: full.terrainProfile,
));
await ref.read(sharingServiceProvider).shareJsonFile(
json: json,
@@ -251,11 +252,16 @@ class _MissionsDronesPanelState extends ConsumerState<MissionsDronesPanel> {
messenger.showSnackBar(SnackBar(content: Text(e.message)));
return;
}
await ref.read(missionRepositoryProvider).upsert(
final id = await ref.read(missionRepositoryProvider).upsert(
name: parsed.name,
placeName: parsed.placeName,
waypoints: parsed.waypoints,
);
if (parsed.terrainProfile != null) {
await ref
.read(missionRepositoryProvider)
.saveTerrainProfile(id, parsed.terrainProfile!);
}
if (parsed.versionMismatch != null) {
messenger.showSnackBar(SnackBar(
content: Text(
app/lib/ui/widgets/waypoint_list_panel.dart
+13 -3
View File
@@ -9,6 +9,7 @@ import '../../domain/waypoint/flat_waypoint_list.dart';
import '../../domain/wind/wind_math.dart';
import '../providers/active_drone_profile_provider.dart';
import '../providers/current_mission_provider.dart';
import '../providers/mission_meta_provider.dart';
import '../providers/terrain_provider.dart';
import '../providers/wind_provider.dart';
import 'full_value_chart.dart';
@@ -92,7 +93,10 @@ class _WaypointListPanelState extends ConsumerState<WaypointListPanel> {
// werden - sonst passiert das erst beim (dann gar nicht mehr
// stattfindenden) Antippen des Tab-Buttons.
if (_tab == PanelTab.altitude) {
ref.read(terrainProvider.notifier).ensureFor(ref.read(currentMissionProvider));
ref.read(terrainProvider.notifier).ensureFor(
ref.read(currentMissionProvider),
missionId: ref.read(currentMissionMetaProvider).id,
);
}
});
// Laedt/aktualisiert das Gelaendeprofil (Doku 3.9) nur, waehrend der
@@ -102,7 +106,10 @@ class _WaypointListPanelState extends ConsumerState<WaypointListPanel> {
// erneuter Kachel-Download noetig ist.
ref.listenManual(currentMissionProvider, (previous, next) {
if (_tab == PanelTab.altitude) {
ref.read(terrainProvider.notifier).ensureFor(next);
ref.read(terrainProvider.notifier).ensureFor(
next,
missionId: ref.read(currentMissionMetaProvider).id,
);
}
});
}
@@ -272,7 +279,10 @@ class _WaypointListPanelState extends ConsumerState<WaypointListPanel> {
if (tab == PanelTab.list) {
WidgetsBinding.instance.addPostFrameCallback((_) => _scrollToActive());
} else if (tab == PanelTab.altitude) {
ref.read(terrainProvider.notifier).ensureFor(ref.read(currentMissionProvider));
ref.read(terrainProvider.notifier).ensureFor(
ref.read(currentMissionProvider),
missionId: ref.read(currentMissionMetaProvider).id,
);
}
},
child: Container(