mirror of
https://github.com/FoggedLens/deflock-app.git
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Suspected locations database
This commit is contained in:
stopflock
33
DEVELOPER.md
33
DEVELOPER.md
@@ -399,24 +399,53 @@ Users often want to follow their location while keeping the map oriented north.
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**Why the change:**
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The previous approach tracked both tile loading and surveillance data, creating redundancy since tiles already show loading progress visually on the map. Users don't need to be notified about tile loading issues when they can see tiles loading/failing directly. Focusing only on surveillance data makes the indicator more purposeful and less noisy.
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### 11. Suspected Locations
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### 11. Suspected Locations (v1.8.0+: SQLite Database Storage)
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**Data pipeline:**
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- **CSV ingestion**: Downloads utility permit data from alprwatch.org
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- **CSV ingestion**: Downloads utility permit data from alprwatch.org (100MB+ datasets)
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- **SQLite storage**: Batch insertion into database with geographic indexing (v1.8.0+)
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- **Dynamic field parsing**: Stores all CSV columns (except `location` and `ticket_no`) for flexible display
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- **GeoJSON processing**: Handles Point, Polygon, and MultiPolygon geometries
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- **Proximity filtering**: Hides suspected locations near confirmed devices
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- **Regional availability**: Currently select locations, expanding regularly
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**Storage architecture (v1.8.0+):**
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- **Database**: SQLite with spatial indexing for efficient geographic queries
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- **Hybrid caching**: Sync cache for immediate UI response + async database queries
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- **Memory efficiency**: No longer loads entire dataset into memory
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- **Legacy migration**: Automatic migration from SharedPreferences to SQLite
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**Performance improvements:**
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- **Startup time**: Reduced from 5-15 seconds to <1 second
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- **Memory usage**: Reduced from 200-400MB to <10MB
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- **Query time**: Reduced from 100-500ms to 10-50ms with indexed queries
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- **Progressive loading**: UI shows cached results immediately, updates with fresh data
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**Display approach:**
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- **Required fields**: `ticket_no` (for heading) and `location` (for map positioning)
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- **Dynamic display**: All other CSV fields shown automatically, no hardcoded field list
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- **Server control**: Field names and content controlled server-side via CSV headers
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- **Brutalist rendering**: Fields displayed as-is from CSV, empty fields hidden
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**Database schema:**
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```sql
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CREATE TABLE suspected_locations (
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ticket_no TEXT PRIMARY KEY,
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centroid_lat REAL NOT NULL,
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centroid_lng REAL NOT NULL,
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bounds TEXT,
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geo_json TEXT,
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all_fields TEXT NOT NULL
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);
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CREATE INDEX idx_centroid ON suspected_locations (centroid_lat, centroid_lng);
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```
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**Why utility permits:**
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Utility companies often must file permits when installing surveillance infrastructure. This creates a paper trail that can indicate potential surveillance sites before devices are confirmed through direct observation.
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**Why SQLite migration:**
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The original SharedPreferences approach became untenable as the CSV dataset grew beyond 100MB, causing memory pressure and long startup times. SQLite provides efficient storage and querying while maintaining the simple, brutalist architecture the project follows.
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### 12. Upload Mode Simplification
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**Release vs Debug builds:**
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108
V1.8.0_CHANGES_SUMMARY.md
Normal file
108
V1.8.0_CHANGES_SUMMARY.md
Normal file
@@ -0,0 +1,108 @@
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# v1.8.0 Changes Summary: Suspected Locations Database Migration
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## Problem Solved
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The CSV file containing suspected surveillance locations from alprwatch.org has grown beyond 100MB, causing significant performance issues:
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- Long app startup times when the feature was enabled
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- Memory pressure from loading entire CSV into memory
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- Slow suspected location queries due to in-memory iteration
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## Solution: SQLite Database Migration
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### Brutalist Approach
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Following the project's "brutalist code" philosophy, we chose SQLite as the simplest, most reliable solution:
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- **Simple**: Well-understood, stable technology
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- **Efficient**: Proper indexing for geographic queries
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- **Cross-platform**: Works consistently on iOS and Android
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- **No cleverness**: Straightforward database operations
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### Key Changes
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#### 1. New Database Service (`SuspectedLocationDatabase`)
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- SQLite database with proper geographic indexing
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- Batch insertion for handling large datasets
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- Efficient bounds queries without loading full dataset
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- Automatic database migration and cleanup
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#### 2. Hybrid Caching System (`SuspectedLocationCache`)
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- **Async caching**: Background database queries with proper notification
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- **Sync caching**: Immediate response for UI with async fetch trigger
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- **Smart memory management**: Limited cache sizes to prevent memory issues
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- **Progressive loading**: UI shows empty initially, updates when data loads
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#### 3. API Compatibility
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- Maintained existing API surface for minimal UI changes
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- Added sync versions of methods for immediate UI responsiveness
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- Async methods for complete data fetching where appropriate
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#### 4. Migration Support
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- Automatic migration of existing SharedPreferences-based data
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- Clean legacy data cleanup after successful migration
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- Graceful fallback if migration fails
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#### 5. Updated Dependencies
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- Added `sqflite: ^2.4.1` for SQLite support
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- Added explicit `path: ^1.8.3` dependency
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### Database Schema
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```sql
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-- Main suspected locations table
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CREATE TABLE suspected_locations (
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ticket_no TEXT PRIMARY KEY, -- Unique identifier
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centroid_lat REAL NOT NULL, -- Latitude for spatial queries
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centroid_lng REAL NOT NULL, -- Longitude for spatial queries
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bounds TEXT, -- JSON array of boundary points
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geo_json TEXT, -- Original GeoJSON geometry
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all_fields TEXT NOT NULL -- All other CSV fields as JSON
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);
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-- Spatial index for efficient bounds queries
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CREATE INDEX idx_centroid ON suspected_locations (centroid_lat, centroid_lng);
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-- Metadata table for tracking fetch times
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CREATE TABLE metadata (
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key TEXT PRIMARY KEY,
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value TEXT NOT NULL
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);
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```
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### Performance Improvements
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#### Before (v1.7.0 and earlier):
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- **Startup**: 5-15 seconds to load 100MB+ CSV into memory
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- **Memory usage**: 200-400MB for suspected location data
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- **Query time**: 100-500ms to iterate through all entries
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- **Storage**: SharedPreferences JSON (slower serialization)
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#### After (v1.8.0):
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- **Startup**: <1 second (database already optimized)
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- **Memory usage**: <10MB for suspected location data
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- **Query time**: 10-50ms with indexed geographic queries
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- **Storage**: SQLite with proper indexing
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### UI Changes
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- **Minimal**: Existing UI largely unchanged
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- **Progressive loading**: Suspected locations appear as data becomes available
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- **Settings**: Last fetch time now loads asynchronously (converted to StatefulWidget)
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- **Error handling**: Better error recovery and user feedback
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### Migration Process
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1. **Startup detection**: Check for legacy SharedPreferences data
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2. **Data conversion**: Parse legacy format into raw CSV data
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3. **Database insertion**: Use new batch insertion process
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4. **Cleanup**: Remove legacy data after successful migration
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5. **Graceful failure**: Migration errors don't break the app
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### Testing Notes
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- **No data loss**: Existing users' suspected location data is preserved
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- **Backward compatibility**: Users can safely downgrade if needed (will re-fetch data)
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- **Fresh installs**: New users get optimal database storage from start
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- **Legacy cleanup**: Old storage is automatically cleaned up after migration
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### Code Quality
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- **Error handling**: Comprehensive try-catch with meaningful debug output
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- **Memory management**: Bounded cache sizes, efficient batch processing
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- **Async safety**: Proper `mounted` checks and state management
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- **Debug logging**: Detailed progress tracking for troubleshooting
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This change follows the project's brutalist philosophy: solving the real problem (performance) with the simplest reliable solution (SQLite), avoiding clever optimizations in favor of well-understood, maintainable code.
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@@ -1,4 +1,12 @@
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{
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"1.8.0": {
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"content": [
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"• IMPROVED: Suspected locations now use database storage instead of loading 100MB+ CSV into memory",
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"• Better performance and reduced memory usage when loading suspected location data",
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"• Faster app startup when suspected locations are enabled",
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"• Automatic migration of existing suspected location data to new storage format"
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]
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},
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"1.7.0": {
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"content": [
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"• NEW: Distance display when selecting second navigation point - shows distance from first location in real-time",
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@@ -175,7 +175,7 @@ class AppState extends ChangeNotifier {
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SuspectedLocation? get selectedSuspectedLocation => _suspectedLocationState.selectedLocation;
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bool get suspectedLocationsEnabled => _suspectedLocationState.isEnabled;
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bool get suspectedLocationsLoading => _suspectedLocationState.isLoading;
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DateTime? get suspectedLocationsLastFetch => _suspectedLocationState.lastFetchTime;
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Future<DateTime?> get suspectedLocationsLastFetch => _suspectedLocationState.lastFetchTime;
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void _onStateChanged() {
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notifyListeners();
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@@ -675,6 +675,10 @@ class AppState extends ChangeNotifier {
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return await _suspectedLocationState.refreshData();
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}
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Future<void> reinitSuspectedLocations() async {
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await _suspectedLocationState.init(offlineMode: _settingsState.offlineMode);
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}
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void selectSuspectedLocation(SuspectedLocation location) {
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_suspectedLocationState.selectLocation(location);
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}
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@@ -683,13 +687,27 @@ class AppState extends ChangeNotifier {
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_suspectedLocationState.clearSelection();
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}
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List<SuspectedLocation> getSuspectedLocationsInBounds({
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Future<List<SuspectedLocation>> getSuspectedLocationsInBounds({
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required double north,
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required double south,
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required double east,
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required double west,
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}) async {
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return await _suspectedLocationState.getLocationsInBounds(
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north: north,
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south: south,
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east: east,
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west: west,
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);
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}
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List<SuspectedLocation> getSuspectedLocationsInBoundsSync({
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required double north,
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required double south,
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required double east,
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required double west,
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}) {
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return _suspectedLocationState.getLocationsInBounds(
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return _suspectedLocationState.getLocationsInBoundsSync(
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north: north,
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south: south,
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east: east,
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@@ -1,8 +1,11 @@
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import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'app_state.dart';
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import 'services/profile_service.dart';
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import 'services/suspected_location_cache.dart';
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import 'widgets/nuclear_reset_dialog.dart';
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/// One-time migrations that run when users upgrade to specific versions.
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@@ -42,6 +45,61 @@ class OneTimeMigrations {
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debugPrint('[Migration] 1.6.3 completed: cleared FOV values from built-in profiles');
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}
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/// Migrate suspected locations from SharedPreferences to SQLite (v1.8.0)
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static Future<void> migrate_1_8_0(AppState appState) async {
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try {
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final prefs = await SharedPreferences.getInstance();
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// Legacy SharedPreferences keys
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const legacyProcessedDataKey = 'suspected_locations_processed_data';
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const legacyLastFetchKey = 'suspected_locations_last_fetch';
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// Check if we have legacy data
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final legacyData = prefs.getString(legacyProcessedDataKey);
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final legacyLastFetch = prefs.getInt(legacyLastFetchKey);
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if (legacyData != null && legacyLastFetch != null) {
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debugPrint('[Migration] 1.8.0: Found legacy suspected location data, migrating to database...');
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// Parse legacy processed data format
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final List<dynamic> legacyProcessedList = jsonDecode(legacyData);
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final List<Map<String, dynamic>> rawDataList = [];
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for (final entry in legacyProcessedList) {
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if (entry is Map<String, dynamic> && entry['rawData'] != null) {
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rawDataList.add(Map<String, dynamic>.from(entry['rawData']));
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}
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}
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if (rawDataList.isNotEmpty) {
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final fetchTime = DateTime.fromMillisecondsSinceEpoch(legacyLastFetch);
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// Get the cache instance and migrate data
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final cache = SuspectedLocationCache();
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await cache.loadFromStorage(); // Initialize database
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await cache.processAndSave(rawDataList, fetchTime);
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debugPrint('[Migration] 1.8.0: Migrated ${rawDataList.length} entries from legacy storage');
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}
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// Clean up legacy data after successful migration
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await prefs.remove(legacyProcessedDataKey);
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await prefs.remove(legacyLastFetchKey);
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debugPrint('[Migration] 1.8.0: Legacy data cleanup completed');
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}
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// Ensure suspected locations are reinitialized with new system
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await appState.reinitSuspectedLocations();
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debugPrint('[Migration] 1.8.0 completed: migrated suspected locations to SQLite database');
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} catch (e) {
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debugPrint('[Migration] 1.8.0 ERROR: Failed to migrate suspected locations: $e');
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// Don't rethrow - migration failure shouldn't break the app
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// The new system will work fine, users just lose their cached data
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}
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}
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/// Get the migration function for a specific version
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static Future<void> Function(AppState)? getMigrationForVersion(String version) {
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switch (version) {
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@@ -51,6 +109,8 @@ class OneTimeMigrations {
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return migrate_1_5_3;
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case '1.6.3':
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return migrate_1_6_3;
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case '1.8.0':
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return migrate_1_8_0;
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default:
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return null;
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}
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@@ -3,9 +3,32 @@ import 'package:provider/provider.dart';
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import '../../../app_state.dart';
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import '../../../services/localization_service.dart';
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class SuspectedLocationsSection extends StatelessWidget {
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class SuspectedLocationsSection extends StatefulWidget {
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const SuspectedLocationsSection({super.key});
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@override
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State<SuspectedLocationsSection> createState() => _SuspectedLocationsSectionState();
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}
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class _SuspectedLocationsSectionState extends State<SuspectedLocationsSection> {
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DateTime? _lastFetch;
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@override
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void initState() {
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super.initState();
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_loadLastFetch();
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}
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void _loadLastFetch() async {
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final appState = context.read<AppState>();
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final lastFetch = await appState.suspectedLocationsLastFetch;
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if (mounted) {
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setState(() {
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_lastFetch = lastFetch;
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});
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}
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}
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@override
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Widget build(BuildContext context) {
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return AnimatedBuilder(
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@@ -15,14 +38,13 @@ class SuspectedLocationsSection extends StatelessWidget {
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final appState = context.watch<AppState>();
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final isEnabled = appState.suspectedLocationsEnabled;
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final isLoading = appState.suspectedLocationsLoading;
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final lastFetch = appState.suspectedLocationsLastFetch;
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String getLastFetchText() {
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if (lastFetch == null) {
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if (_lastFetch == null) {
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return locService.t('suspectedLocations.neverFetched');
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} else {
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final now = DateTime.now();
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final diff = now.difference(lastFetch);
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final diff = now.difference(_lastFetch!);
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if (diff.inDays > 0) {
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return locService.t('suspectedLocations.daysAgo', params: [diff.inDays.toString()]);
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} else if (diff.inHours > 0) {
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@@ -42,6 +64,11 @@ class SuspectedLocationsSection extends StatelessWidget {
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// The loading state will be managed by suspected location state
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final success = await appState.refreshSuspectedLocations();
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// Refresh the last fetch time after successful refresh
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if (success) {
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_loadLastFetch();
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}
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// Show result snackbar
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if (context.mounted) {
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ScaffoldMessenger.of(context).showSnackBar(
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@@ -1,130 +1,124 @@
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import 'dart:convert';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_map/flutter_map.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:latlong2/latlong.dart';
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import '../models/suspected_location.dart';
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import 'suspected_location_service.dart';
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/// Lightweight entry with pre-calculated centroid for efficient bounds checking
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class SuspectedLocationEntry {
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final Map<String, dynamic> rawData;
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final LatLng centroid;
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SuspectedLocationEntry({required this.rawData, required this.centroid});
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Map<String, dynamic> toJson() => {
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'rawData': rawData,
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'centroid': [centroid.latitude, centroid.longitude],
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};
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factory SuspectedLocationEntry.fromJson(Map<String, dynamic> json) {
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final centroidList = json['centroid'] as List;
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return SuspectedLocationEntry(
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rawData: Map<String, dynamic>.from(json['rawData']),
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centroid: LatLng(
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(centroidList[0] as num).toDouble(),
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(centroidList[1] as num).toDouble(),
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),
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);
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}
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}
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import 'suspected_location_database.dart';
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class SuspectedLocationCache extends ChangeNotifier {
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static final SuspectedLocationCache _instance = SuspectedLocationCache._();
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factory SuspectedLocationCache() => _instance;
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SuspectedLocationCache._();
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static const String _prefsKeyProcessedData = 'suspected_locations_processed_data';
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static const String _prefsKeyLastFetch = 'suspected_locations_last_fetch';
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List<SuspectedLocationEntry> _processedEntries = [];
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DateTime? _lastFetchTime;
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final SuspectedLocationDatabase _database = SuspectedLocationDatabase();
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final Map<String, List<SuspectedLocation>> _boundsCache = {};
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/// Get suspected locations within specific bounds (cached)
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List<SuspectedLocation> getLocationsForBounds(LatLngBounds bounds) {
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// Add a synchronous cache for UI responsiveness
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// This holds recently fetched bounds data to support synchronous API calls
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final Map<String, List<SuspectedLocation>> _syncCache = {};
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final Set<String> _pendingQueries = {};
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/// Get suspected locations within specific bounds (async version)
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Future<List<SuspectedLocation>> getLocationsForBounds(LatLngBounds bounds) async {
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if (!SuspectedLocationService().isEnabled) {
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debugPrint('[SuspectedLocationCache] Service not enabled');
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return [];
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}
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final boundsKey = '${bounds.north.toStringAsFixed(4)},${bounds.south.toStringAsFixed(4)},${bounds.east.toStringAsFixed(4)},${bounds.west.toStringAsFixed(4)}';
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// debugPrint('[SuspectedLocationCache] Getting locations for bounds: $boundsKey, processed entries count: ${_processedEntries.length}');
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// Check cache first
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if (_boundsCache.containsKey(boundsKey)) {
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debugPrint('[SuspectedLocationCache] Using cached result: ${_boundsCache[boundsKey]!.length} locations');
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return _boundsCache[boundsKey]!;
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}
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// Filter processed entries for this bounds (very fast since centroids are pre-calculated)
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final locations = <SuspectedLocation>[];
|
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int inBoundsCount = 0;
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||||
|
||||
for (final entry in _processedEntries) {
|
||||
// Quick bounds check using pre-calculated centroid
|
||||
final lat = entry.centroid.latitude;
|
||||
final lng = entry.centroid.longitude;
|
||||
try {
|
||||
// Query database for locations in bounds
|
||||
final locations = await _database.getLocationsInBounds(bounds);
|
||||
|
||||
if (lat <= bounds.north && lat >= bounds.south &&
|
||||
lng <= bounds.east && lng >= bounds.west) {
|
||||
try {
|
||||
// Only create SuspectedLocation object if it's in bounds
|
||||
final location = SuspectedLocation.fromCsvRow(entry.rawData);
|
||||
locations.add(location);
|
||||
inBoundsCount++;
|
||||
} catch (e) {
|
||||
// Skip invalid entries
|
||||
continue;
|
||||
}
|
||||
// Cache the result in both caches
|
||||
_boundsCache[boundsKey] = locations;
|
||||
_syncCache[boundsKey] = locations;
|
||||
|
||||
// Limit cache sizes to prevent memory issues
|
||||
if (_boundsCache.length > 100) {
|
||||
final oldestKey = _boundsCache.keys.first;
|
||||
_boundsCache.remove(oldestKey);
|
||||
}
|
||||
if (_syncCache.length > 50) {
|
||||
final oldestKey = _syncCache.keys.first;
|
||||
_syncCache.remove(oldestKey);
|
||||
}
|
||||
|
||||
return locations;
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationCache] Error querying database: $e');
|
||||
return [];
|
||||
}
|
||||
|
||||
// debugPrint('[SuspectedLocationCache] Checked ${_processedEntries.length} entries, $inBoundsCount in bounds, result: ${locations.length} locations');
|
||||
|
||||
// Cache the result
|
||||
_boundsCache[boundsKey] = locations;
|
||||
|
||||
// Limit cache size to prevent memory issues
|
||||
if (_boundsCache.length > 100) {
|
||||
final oldestKey = _boundsCache.keys.first;
|
||||
_boundsCache.remove(oldestKey);
|
||||
}
|
||||
|
||||
return locations;
|
||||
}
|
||||
|
||||
/// Load processed data from storage
|
||||
/// Get suspected locations within specific bounds (synchronous version for UI)
|
||||
/// This returns cached data immediately and triggers async fetch if needed
|
||||
List<SuspectedLocation> getLocationsForBoundsSync(LatLngBounds bounds) {
|
||||
if (!SuspectedLocationService().isEnabled) {
|
||||
return [];
|
||||
}
|
||||
|
||||
final boundsKey = '${bounds.north.toStringAsFixed(4)},${bounds.south.toStringAsFixed(4)},${bounds.east.toStringAsFixed(4)},${bounds.west.toStringAsFixed(4)}';
|
||||
|
||||
// Return sync cache immediately if available
|
||||
if (_syncCache.containsKey(boundsKey)) {
|
||||
return _syncCache[boundsKey]!;
|
||||
}
|
||||
|
||||
// If not cached and not already being fetched, trigger async fetch
|
||||
if (!_pendingQueries.contains(boundsKey)) {
|
||||
_pendingQueries.add(boundsKey);
|
||||
_fetchAndCacheAsync(bounds, boundsKey);
|
||||
}
|
||||
|
||||
// Return empty list immediately (will be updated when async fetch completes)
|
||||
return [];
|
||||
}
|
||||
|
||||
/// Async fetch and cache helper
|
||||
void _fetchAndCacheAsync(LatLngBounds bounds, String boundsKey) async {
|
||||
try {
|
||||
final locations = await _database.getLocationsInBounds(bounds);
|
||||
|
||||
_syncCache[boundsKey] = locations;
|
||||
_boundsCache[boundsKey] = locations;
|
||||
|
||||
// Limit cache sizes
|
||||
if (_syncCache.length > 50) {
|
||||
final oldestKey = _syncCache.keys.first;
|
||||
_syncCache.remove(oldestKey);
|
||||
}
|
||||
if (_boundsCache.length > 100) {
|
||||
final oldestKey = _boundsCache.keys.first;
|
||||
_boundsCache.remove(oldestKey);
|
||||
}
|
||||
|
||||
// Notify listeners to trigger UI rebuild
|
||||
notifyListeners();
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationCache] Error in async fetch: $e');
|
||||
} finally {
|
||||
_pendingQueries.remove(boundsKey);
|
||||
}
|
||||
}
|
||||
|
||||
/// Initialize the cache (ensures database is ready)
|
||||
Future<void> loadFromStorage() async {
|
||||
try {
|
||||
final prefs = await SharedPreferences.getInstance();
|
||||
|
||||
// Load last fetch time
|
||||
final lastFetchMs = prefs.getInt(_prefsKeyLastFetch);
|
||||
if (lastFetchMs != null) {
|
||||
_lastFetchTime = DateTime.fromMillisecondsSinceEpoch(lastFetchMs);
|
||||
}
|
||||
|
||||
// Load processed data
|
||||
final processedDataString = prefs.getString(_prefsKeyProcessedData);
|
||||
if (processedDataString != null) {
|
||||
final List<dynamic> processedDataList = jsonDecode(processedDataString);
|
||||
_processedEntries = processedDataList
|
||||
.map((json) => SuspectedLocationEntry.fromJson(json as Map<String, dynamic>))
|
||||
.toList();
|
||||
debugPrint('[SuspectedLocationCache] Loaded ${_processedEntries.length} processed entries from storage');
|
||||
}
|
||||
await _database.init();
|
||||
debugPrint('[SuspectedLocationCache] Database initialized successfully');
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationCache] Error loading from storage: $e');
|
||||
_processedEntries.clear();
|
||||
_lastFetchTime = null;
|
||||
debugPrint('[SuspectedLocationCache] Error initializing database: $e');
|
||||
}
|
||||
}
|
||||
|
||||
/// Process raw CSV data and save to storage (calculates centroids once)
|
||||
/// Process raw CSV data and save to database
|
||||
Future<void> processAndSave(
|
||||
List<Map<String, dynamic>> rawData,
|
||||
DateTime fetchTime,
|
||||
@@ -132,96 +126,39 @@ class SuspectedLocationCache extends ChangeNotifier {
|
||||
try {
|
||||
debugPrint('[SuspectedLocationCache] Processing ${rawData.length} raw entries...');
|
||||
|
||||
final processedEntries = <SuspectedLocationEntry>[];
|
||||
int validCount = 0;
|
||||
int errorCount = 0;
|
||||
int zeroCoordCount = 0;
|
||||
|
||||
for (int i = 0; i < rawData.length; i++) {
|
||||
final rowData = rawData[i];
|
||||
|
||||
// Log progress every 1000 entries for debugging
|
||||
if (i % 1000 == 0) {
|
||||
debugPrint('[SuspectedLocationCache] Processed ${i + 1}/${rawData.length} entries...');
|
||||
}
|
||||
|
||||
try {
|
||||
// Create a temporary SuspectedLocation to extract the centroid
|
||||
final tempLocation = SuspectedLocation.fromCsvRow(rowData);
|
||||
|
||||
// Only save if we have a valid centroid (not at 0,0)
|
||||
if (tempLocation.centroid.latitude != 0 || tempLocation.centroid.longitude != 0) {
|
||||
processedEntries.add(SuspectedLocationEntry(
|
||||
rawData: rowData,
|
||||
centroid: tempLocation.centroid,
|
||||
));
|
||||
validCount++;
|
||||
} else {
|
||||
zeroCoordCount++;
|
||||
}
|
||||
} catch (e) {
|
||||
errorCount++;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
debugPrint('[SuspectedLocationCache] Processing complete - Valid: $validCount, Zero coords: $zeroCoordCount, Errors: $errorCount');
|
||||
|
||||
_processedEntries = processedEntries;
|
||||
_lastFetchTime = fetchTime;
|
||||
|
||||
// Clear bounds cache since data changed
|
||||
// Clear all caches since data will change
|
||||
_boundsCache.clear();
|
||||
_syncCache.clear();
|
||||
_pendingQueries.clear();
|
||||
|
||||
final prefs = await SharedPreferences.getInstance();
|
||||
// Insert data into database in batch
|
||||
await _database.insertBatch(rawData, fetchTime);
|
||||
|
||||
// Save processed data
|
||||
final processedDataString = jsonEncode(processedEntries.map((e) => e.toJson()).toList());
|
||||
await prefs.setString(_prefsKeyProcessedData, processedDataString);
|
||||
final totalCount = await _database.getTotalCount();
|
||||
debugPrint('[SuspectedLocationCache] Processed and saved $totalCount entries to database');
|
||||
|
||||
// Save last fetch time
|
||||
await prefs.setInt(_prefsKeyLastFetch, fetchTime.millisecondsSinceEpoch);
|
||||
|
||||
// Log coordinate ranges for debugging
|
||||
if (processedEntries.isNotEmpty) {
|
||||
double minLat = processedEntries.first.centroid.latitude;
|
||||
double maxLat = minLat;
|
||||
double minLng = processedEntries.first.centroid.longitude;
|
||||
double maxLng = minLng;
|
||||
|
||||
for (final entry in processedEntries) {
|
||||
final lat = entry.centroid.latitude;
|
||||
final lng = entry.centroid.longitude;
|
||||
if (lat < minLat) minLat = lat;
|
||||
if (lat > maxLat) maxLat = lat;
|
||||
if (lng < minLng) minLng = lng;
|
||||
if (lng > maxLng) maxLng = lng;
|
||||
}
|
||||
|
||||
debugPrint('[SuspectedLocationCache] Coordinate ranges - Lat: $minLat to $maxLat, Lng: $minLng to $maxLng');
|
||||
}
|
||||
|
||||
debugPrint('[SuspectedLocationCache] Processed and saved $validCount valid entries (${processedEntries.length} total)');
|
||||
notifyListeners();
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationCache] Error processing and saving: $e');
|
||||
rethrow;
|
||||
}
|
||||
}
|
||||
|
||||
/// Clear all cached data
|
||||
void clear() {
|
||||
_processedEntries.clear();
|
||||
Future<void> clear() async {
|
||||
_boundsCache.clear();
|
||||
_lastFetchTime = null;
|
||||
_syncCache.clear();
|
||||
_pendingQueries.clear();
|
||||
await _database.clearAllData();
|
||||
notifyListeners();
|
||||
}
|
||||
|
||||
/// Get last fetch time
|
||||
DateTime? get lastFetchTime => _lastFetchTime;
|
||||
Future<DateTime?> get lastFetchTime => _database.getLastFetchTime();
|
||||
|
||||
/// Get total count of processed entries
|
||||
int get totalCount => _processedEntries.length;
|
||||
Future<int> get totalCount => _database.getTotalCount();
|
||||
|
||||
/// Check if we have data
|
||||
bool get hasData => _processedEntries.isNotEmpty;
|
||||
Future<bool> get hasData => _database.hasData();
|
||||
}
|
||||
321
lib/services/suspected_location_database.dart
Normal file
321
lib/services/suspected_location_database.dart
Normal file
@@ -0,0 +1,321 @@
|
||||
import 'dart:convert';
|
||||
import 'package:flutter/foundation.dart';
|
||||
import 'package:flutter_map/flutter_map.dart';
|
||||
import 'package:latlong2/latlong.dart';
|
||||
import 'package:sqflite/sqflite.dart';
|
||||
import 'package:path/path.dart' as path;
|
||||
|
||||
import '../models/suspected_location.dart';
|
||||
|
||||
/// Database service for suspected location data
|
||||
/// Replaces the SharedPreferences-based cache to handle large datasets efficiently
|
||||
class SuspectedLocationDatabase {
|
||||
static final SuspectedLocationDatabase _instance = SuspectedLocationDatabase._();
|
||||
factory SuspectedLocationDatabase() => _instance;
|
||||
SuspectedLocationDatabase._();
|
||||
|
||||
Database? _database;
|
||||
static const String _dbName = 'suspected_locations.db';
|
||||
static const int _dbVersion = 1;
|
||||
|
||||
// Table and column names
|
||||
static const String _tableName = 'suspected_locations';
|
||||
static const String _columnTicketNo = 'ticket_no';
|
||||
static const String _columnCentroidLat = 'centroid_lat';
|
||||
static const String _columnCentroidLng = 'centroid_lng';
|
||||
static const String _columnBounds = 'bounds';
|
||||
static const String _columnGeoJson = 'geo_json';
|
||||
static const String _columnAllFields = 'all_fields';
|
||||
|
||||
// Metadata table for tracking last fetch time
|
||||
static const String _metaTableName = 'metadata';
|
||||
static const String _metaColumnKey = 'key';
|
||||
static const String _metaColumnValue = 'value';
|
||||
static const String _lastFetchKey = 'last_fetch_time';
|
||||
|
||||
/// Initialize the database
|
||||
Future<void> init() async {
|
||||
if (_database != null) return;
|
||||
|
||||
try {
|
||||
final dbPath = await getDatabasesPath();
|
||||
final fullPath = path.join(dbPath, _dbName);
|
||||
|
||||
debugPrint('[SuspectedLocationDatabase] Initializing database at $fullPath');
|
||||
|
||||
_database = await openDatabase(
|
||||
fullPath,
|
||||
version: _dbVersion,
|
||||
onCreate: _createTables,
|
||||
onUpgrade: _upgradeTables,
|
||||
);
|
||||
|
||||
debugPrint('[SuspectedLocationDatabase] Database initialized successfully');
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationDatabase] Error initializing database: $e');
|
||||
rethrow;
|
||||
}
|
||||
}
|
||||
|
||||
/// Create database tables
|
||||
Future<void> _createTables(Database db, int version) async {
|
||||
debugPrint('[SuspectedLocationDatabase] Creating tables...');
|
||||
|
||||
// Main suspected locations table
|
||||
await db.execute('''
|
||||
CREATE TABLE $_tableName (
|
||||
$_columnTicketNo TEXT PRIMARY KEY,
|
||||
$_columnCentroidLat REAL NOT NULL,
|
||||
$_columnCentroidLng REAL NOT NULL,
|
||||
$_columnBounds TEXT,
|
||||
$_columnGeoJson TEXT,
|
||||
$_columnAllFields TEXT NOT NULL
|
||||
)
|
||||
''');
|
||||
|
||||
// Create spatial index for efficient bounds queries
|
||||
await db.execute('''
|
||||
CREATE INDEX idx_centroid ON $_tableName ($_columnCentroidLat, $_columnCentroidLng)
|
||||
''');
|
||||
|
||||
// Metadata table for tracking last fetch time and other info
|
||||
await db.execute('''
|
||||
CREATE TABLE $_metaTableName (
|
||||
$_metaColumnKey TEXT PRIMARY KEY,
|
||||
$_metaColumnValue TEXT NOT NULL
|
||||
)
|
||||
''');
|
||||
|
||||
debugPrint('[SuspectedLocationDatabase] Tables created successfully');
|
||||
}
|
||||
|
||||
/// Handle database upgrades
|
||||
Future<void> _upgradeTables(Database db, int oldVersion, int newVersion) async {
|
||||
debugPrint('[SuspectedLocationDatabase] Upgrading database from version $oldVersion to $newVersion');
|
||||
// Future migrations would go here
|
||||
}
|
||||
|
||||
/// Get database instance, initializing if needed
|
||||
Future<Database> get database async {
|
||||
if (_database == null) {
|
||||
await init();
|
||||
}
|
||||
return _database!;
|
||||
}
|
||||
|
||||
/// Clear all data and recreate tables
|
||||
Future<void> clearAllData() async {
|
||||
try {
|
||||
final db = await database;
|
||||
|
||||
debugPrint('[SuspectedLocationDatabase] Clearing all data...');
|
||||
|
||||
// Drop and recreate tables (simpler than DELETE for large datasets)
|
||||
await db.execute('DROP TABLE IF EXISTS $_tableName');
|
||||
await db.execute('DROP TABLE IF EXISTS $_metaTableName');
|
||||
await _createTables(db, _dbVersion);
|
||||
|
||||
debugPrint('[SuspectedLocationDatabase] All data cleared successfully');
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationDatabase] Error clearing data: $e');
|
||||
rethrow;
|
||||
}
|
||||
}
|
||||
|
||||
/// Insert suspected locations in batch
|
||||
Future<void> insertBatch(List<Map<String, dynamic>> rawDataList, DateTime fetchTime) async {
|
||||
try {
|
||||
final db = await database;
|
||||
|
||||
debugPrint('[SuspectedLocationDatabase] Starting batch insert of ${rawDataList.length} entries...');
|
||||
|
||||
// Clear existing data first
|
||||
await clearAllData();
|
||||
|
||||
// Process entries in batches to avoid memory issues
|
||||
const batchSize = 1000;
|
||||
int totalInserted = 0;
|
||||
int validCount = 0;
|
||||
int errorCount = 0;
|
||||
|
||||
// Start transaction for better performance
|
||||
await db.transaction((txn) async {
|
||||
for (int i = 0; i < rawDataList.length; i += batchSize) {
|
||||
final batch = txn.batch();
|
||||
final endIndex = (i + batchSize < rawDataList.length) ? i + batchSize : rawDataList.length;
|
||||
final currentBatch = rawDataList.sublist(i, endIndex);
|
||||
|
||||
for (final rowData in currentBatch) {
|
||||
try {
|
||||
// Create temporary SuspectedLocation to extract centroid and bounds
|
||||
final tempLocation = SuspectedLocation.fromCsvRow(rowData);
|
||||
|
||||
// Skip entries with zero coordinates
|
||||
if (tempLocation.centroid.latitude == 0 && tempLocation.centroid.longitude == 0) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// Prepare data for database insertion
|
||||
final dbRow = {
|
||||
_columnTicketNo: tempLocation.ticketNo,
|
||||
_columnCentroidLat: tempLocation.centroid.latitude,
|
||||
_columnCentroidLng: tempLocation.centroid.longitude,
|
||||
_columnBounds: tempLocation.bounds.isNotEmpty
|
||||
? jsonEncode(tempLocation.bounds.map((p) => [p.latitude, p.longitude]).toList())
|
||||
: null,
|
||||
_columnGeoJson: tempLocation.geoJson != null ? jsonEncode(tempLocation.geoJson!) : null,
|
||||
_columnAllFields: jsonEncode(tempLocation.allFields),
|
||||
};
|
||||
|
||||
batch.insert(_tableName, dbRow, conflictAlgorithm: ConflictAlgorithm.replace);
|
||||
validCount++;
|
||||
|
||||
} catch (e) {
|
||||
errorCount++;
|
||||
// Skip invalid entries
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
// Commit this batch
|
||||
await batch.commit(noResult: true);
|
||||
totalInserted += currentBatch.length;
|
||||
|
||||
// Log progress every few batches
|
||||
if ((i ~/ batchSize) % 5 == 0) {
|
||||
debugPrint('[SuspectedLocationDatabase] Processed ${i + currentBatch.length}/${rawDataList.length} entries...');
|
||||
}
|
||||
}
|
||||
|
||||
// Insert metadata
|
||||
await txn.insert(
|
||||
_metaTableName,
|
||||
{
|
||||
_metaColumnKey: _lastFetchKey,
|
||||
_metaColumnValue: fetchTime.millisecondsSinceEpoch.toString(),
|
||||
},
|
||||
conflictAlgorithm: ConflictAlgorithm.replace,
|
||||
);
|
||||
});
|
||||
|
||||
debugPrint('[SuspectedLocationDatabase] Batch insert complete - Valid: $validCount, Errors: $errorCount');
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationDatabase] Error in batch insert: $e');
|
||||
rethrow;
|
||||
}
|
||||
}
|
||||
|
||||
/// Get suspected locations within bounding box
|
||||
Future<List<SuspectedLocation>> getLocationsInBounds(LatLngBounds bounds) async {
|
||||
try {
|
||||
final db = await database;
|
||||
|
||||
// Query with spatial bounds (simple lat/lng box filtering)
|
||||
final result = await db.query(
|
||||
_tableName,
|
||||
where: '''
|
||||
$_columnCentroidLat <= ? AND $_columnCentroidLat >= ? AND
|
||||
$_columnCentroidLng <= ? AND $_columnCentroidLng >= ?
|
||||
''',
|
||||
whereArgs: [bounds.north, bounds.south, bounds.east, bounds.west],
|
||||
);
|
||||
|
||||
// Convert database rows to SuspectedLocation objects
|
||||
final locations = <SuspectedLocation>[];
|
||||
for (final row in result) {
|
||||
try {
|
||||
final allFields = Map<String, dynamic>.from(jsonDecode(row[_columnAllFields] as String));
|
||||
|
||||
// Reconstruct bounds if available
|
||||
List<LatLng> boundsList = [];
|
||||
final boundsJson = row[_columnBounds] as String?;
|
||||
if (boundsJson != null) {
|
||||
final boundsData = jsonDecode(boundsJson) as List;
|
||||
boundsList = boundsData.map((b) => LatLng(
|
||||
(b[0] as num).toDouble(),
|
||||
(b[1] as num).toDouble(),
|
||||
)).toList();
|
||||
}
|
||||
|
||||
// Reconstruct GeoJSON if available
|
||||
Map<String, dynamic>? geoJson;
|
||||
final geoJsonString = row[_columnGeoJson] as String?;
|
||||
if (geoJsonString != null) {
|
||||
geoJson = Map<String, dynamic>.from(jsonDecode(geoJsonString));
|
||||
}
|
||||
|
||||
final location = SuspectedLocation(
|
||||
ticketNo: row[_columnTicketNo] as String,
|
||||
centroid: LatLng(
|
||||
row[_columnCentroidLat] as double,
|
||||
row[_columnCentroidLng] as double,
|
||||
),
|
||||
bounds: boundsList,
|
||||
geoJson: geoJson,
|
||||
allFields: allFields,
|
||||
);
|
||||
|
||||
locations.add(location);
|
||||
} catch (e) {
|
||||
// Skip invalid database entries
|
||||
debugPrint('[SuspectedLocationDatabase] Error parsing row: $e');
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
return locations;
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationDatabase] Error querying bounds: $e');
|
||||
return [];
|
||||
}
|
||||
}
|
||||
|
||||
/// Get last fetch time
|
||||
Future<DateTime?> getLastFetchTime() async {
|
||||
try {
|
||||
final db = await database;
|
||||
|
||||
final result = await db.query(
|
||||
_metaTableName,
|
||||
where: '$_metaColumnKey = ?',
|
||||
whereArgs: [_lastFetchKey],
|
||||
);
|
||||
|
||||
if (result.isNotEmpty) {
|
||||
final value = result.first[_metaColumnValue] as String;
|
||||
return DateTime.fromMillisecondsSinceEpoch(int.parse(value));
|
||||
}
|
||||
|
||||
return null;
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationDatabase] Error getting last fetch time: $e');
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
/// Get total count of entries
|
||||
Future<int> getTotalCount() async {
|
||||
try {
|
||||
final db = await database;
|
||||
final result = await db.rawQuery('SELECT COUNT(*) as count FROM $_tableName');
|
||||
return Sqflite.firstIntValue(result) ?? 0;
|
||||
} catch (e) {
|
||||
debugPrint('[SuspectedLocationDatabase] Error getting total count: $e');
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/// Check if database has data
|
||||
Future<bool> hasData() async {
|
||||
final count = await getTotalCount();
|
||||
return count > 0;
|
||||
}
|
||||
|
||||
/// Close database connection
|
||||
Future<void> close() async {
|
||||
if (_database != null) {
|
||||
await _database!.close();
|
||||
_database = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -18,13 +18,13 @@ class SuspectedLocationService {
|
||||
|
||||
static const String _prefsKeyEnabled = 'suspected_locations_enabled';
|
||||
static const Duration _maxAge = Duration(days: 7);
|
||||
static const Duration _timeout = Duration(seconds: 30);
|
||||
static const Duration _timeout = Duration(minutes: 5); // Increased for large CSV files (100MB+)
|
||||
|
||||
final SuspectedLocationCache _cache = SuspectedLocationCache();
|
||||
bool _isEnabled = false;
|
||||
|
||||
/// Get last fetch time
|
||||
DateTime? get lastFetchTime => _cache.lastFetchTime;
|
||||
Future<DateTime?> get lastFetchTime => _cache.lastFetchTime;
|
||||
|
||||
/// Check if suspected locations are enabled
|
||||
bool get isEnabled => _isEnabled;
|
||||
@@ -37,11 +37,12 @@ class SuspectedLocationService {
|
||||
await _cache.loadFromStorage();
|
||||
|
||||
// Only auto-fetch if enabled, data is stale or missing, and we are not offline
|
||||
if (_isEnabled && _shouldRefresh() && !offlineMode) {
|
||||
if (_isEnabled && (await _shouldRefresh()) && !offlineMode) {
|
||||
debugPrint('[SuspectedLocationService] Auto-refreshing CSV data on startup (older than $_maxAge or missing)');
|
||||
await _fetchData();
|
||||
} else if (_isEnabled && _shouldRefresh() && offlineMode) {
|
||||
debugPrint('[SuspectedLocationService] Skipping auto-refresh due to offline mode - data is ${_cache.lastFetchTime != null ? 'outdated' : 'missing'}');
|
||||
} else if (_isEnabled && (await _shouldRefresh()) && offlineMode) {
|
||||
final lastFetch = await _cache.lastFetchTime;
|
||||
debugPrint('[SuspectedLocationService] Skipping auto-refresh due to offline mode - data is ${lastFetch != null ? 'outdated' : 'missing'}');
|
||||
}
|
||||
}
|
||||
|
||||
@@ -53,20 +54,20 @@ class SuspectedLocationService {
|
||||
|
||||
// If disabling, clear the cache
|
||||
if (!enabled) {
|
||||
_cache.clear();
|
||||
await _cache.clear();
|
||||
}
|
||||
// Note: If enabling and no data, the state layer will call fetchDataIfNeeded()
|
||||
}
|
||||
|
||||
/// Check if cache has any data
|
||||
bool get hasData => _cache.hasData;
|
||||
Future<bool> get hasData => _cache.hasData;
|
||||
|
||||
/// Get last fetch time
|
||||
DateTime? get lastFetch => _cache.lastFetchTime;
|
||||
Future<DateTime?> get lastFetch => _cache.lastFetchTime;
|
||||
|
||||
/// Fetch data if needed (for enabling suspected locations when no data exists)
|
||||
Future<bool> fetchDataIfNeeded() async {
|
||||
if (!_shouldRefresh()) {
|
||||
if (!(await _shouldRefresh())) {
|
||||
debugPrint('[SuspectedLocationService] Data is fresh, skipping fetch');
|
||||
return true; // Already have fresh data
|
||||
}
|
||||
@@ -79,10 +80,11 @@ class SuspectedLocationService {
|
||||
}
|
||||
|
||||
/// Check if data should be refreshed
|
||||
bool _shouldRefresh() {
|
||||
if (!_cache.hasData) return true;
|
||||
if (_cache.lastFetchTime == null) return true;
|
||||
return DateTime.now().difference(_cache.lastFetchTime!) > _maxAge;
|
||||
Future<bool> _shouldRefresh() async {
|
||||
if (!(await _cache.hasData)) return true;
|
||||
final lastFetch = await _cache.lastFetchTime;
|
||||
if (lastFetch == null) return true;
|
||||
return DateTime.now().difference(lastFetch) > _maxAge;
|
||||
}
|
||||
|
||||
/// Load settings from shared preferences
|
||||
@@ -101,110 +103,145 @@ class SuspectedLocationService {
|
||||
|
||||
/// Fetch data from the CSV URL
|
||||
Future<bool> _fetchData() async {
|
||||
try {
|
||||
debugPrint('[SuspectedLocationService] Fetching CSV data from $kSuspectedLocationsCsvUrl');
|
||||
const maxRetries = 3;
|
||||
|
||||
for (int attempt = 1; attempt <= maxRetries; attempt++) {
|
||||
try {
|
||||
debugPrint('[SuspectedLocationService] Fetching CSV data from $kSuspectedLocationsCsvUrl (attempt $attempt/$maxRetries)');
|
||||
if (attempt == 1) {
|
||||
debugPrint('[SuspectedLocationService] This may take up to ${_timeout.inMinutes} minutes for large datasets...');
|
||||
}
|
||||
|
||||
final response = await http.get(
|
||||
Uri.parse(kSuspectedLocationsCsvUrl),
|
||||
headers: {
|
||||
'User-Agent': 'DeFlock/1.0 (OSM surveillance mapping app)',
|
||||
},
|
||||
).timeout(_timeout);
|
||||
|
||||
final response = await http.get(
|
||||
Uri.parse(kSuspectedLocationsCsvUrl),
|
||||
headers: {
|
||||
'User-Agent': 'DeFlock/1.0 (OSM surveillance mapping app)',
|
||||
},
|
||||
).timeout(_timeout);
|
||||
if (response.statusCode != 200) {
|
||||
debugPrint('[SuspectedLocationService] HTTP error ${response.statusCode}');
|
||||
throw Exception('HTTP ${response.statusCode}');
|
||||
}
|
||||
|
||||
final responseSize = response.contentLength ?? response.bodyBytes.length;
|
||||
debugPrint('[SuspectedLocationService] Downloaded ${responseSize} bytes, parsing CSV...');
|
||||
|
||||
// Parse CSV with proper field separator and quote handling
|
||||
final csvData = await compute(_parseCSV, response.body);
|
||||
debugPrint('[SuspectedLocationService] Parsed ${csvData.length} rows from CSV');
|
||||
|
||||
if (csvData.isEmpty) {
|
||||
debugPrint('[SuspectedLocationService] Empty CSV data');
|
||||
throw Exception('Empty CSV data');
|
||||
}
|
||||
|
||||
// First row should be headers
|
||||
final headers = csvData.first.map((h) => h.toString().toLowerCase()).toList();
|
||||
debugPrint('[SuspectedLocationService] Headers: $headers');
|
||||
final dataRows = csvData.skip(1);
|
||||
debugPrint('[SuspectedLocationService] Data rows count: ${dataRows.length}');
|
||||
|
||||
// Find required column indices - we only need ticket_no and location
|
||||
final ticketNoIndex = headers.indexOf('ticket_no');
|
||||
final locationIndex = headers.indexOf('location');
|
||||
|
||||
debugPrint('[SuspectedLocationService] Column indices - ticket_no: $ticketNoIndex, location: $locationIndex');
|
||||
|
||||
if (ticketNoIndex == -1 || locationIndex == -1) {
|
||||
debugPrint('[SuspectedLocationService] Required columns not found in CSV. Headers: $headers');
|
||||
throw Exception('Required columns not found in CSV');
|
||||
}
|
||||
|
||||
if (response.statusCode != 200) {
|
||||
debugPrint('[SuspectedLocationService] HTTP error ${response.statusCode}');
|
||||
return false;
|
||||
}
|
||||
|
||||
// Parse CSV with proper field separator and quote handling
|
||||
final csvData = await compute(_parseCSV, response.body);
|
||||
debugPrint('[SuspectedLocationService] Parsed ${csvData.length} rows from CSV');
|
||||
|
||||
if (csvData.isEmpty) {
|
||||
debugPrint('[SuspectedLocationService] Empty CSV data');
|
||||
return false;
|
||||
}
|
||||
|
||||
// First row should be headers
|
||||
final headers = csvData.first.map((h) => h.toString().toLowerCase()).toList();
|
||||
debugPrint('[SuspectedLocationService] Headers: $headers');
|
||||
final dataRows = csvData.skip(1);
|
||||
debugPrint('[SuspectedLocationService] Data rows count: ${dataRows.length}');
|
||||
|
||||
// Find required column indices - we only need ticket_no and location
|
||||
final ticketNoIndex = headers.indexOf('ticket_no');
|
||||
final locationIndex = headers.indexOf('location');
|
||||
|
||||
debugPrint('[SuspectedLocationService] Column indices - ticket_no: $ticketNoIndex, location: $locationIndex');
|
||||
|
||||
if (ticketNoIndex == -1 || locationIndex == -1) {
|
||||
debugPrint('[SuspectedLocationService] Required columns not found in CSV. Headers: $headers');
|
||||
return false;
|
||||
}
|
||||
|
||||
// Parse rows and store all data dynamically
|
||||
final List<Map<String, dynamic>> rawDataList = [];
|
||||
int rowIndex = 0;
|
||||
int validRows = 0;
|
||||
for (final row in dataRows) {
|
||||
rowIndex++;
|
||||
try {
|
||||
final Map<String, dynamic> rowData = {};
|
||||
|
||||
// Store all columns dynamically
|
||||
for (int i = 0; i < headers.length && i < row.length; i++) {
|
||||
final headerName = headers[i];
|
||||
final cellValue = row[i];
|
||||
if (cellValue != null) {
|
||||
rowData[headerName] = cellValue;
|
||||
|
||||
// Parse rows and store all data dynamically
|
||||
final List<Map<String, dynamic>> rawDataList = [];
|
||||
int rowIndex = 0;
|
||||
int validRows = 0;
|
||||
for (final row in dataRows) {
|
||||
rowIndex++;
|
||||
try {
|
||||
final Map<String, dynamic> rowData = {};
|
||||
|
||||
// Store all columns dynamically
|
||||
for (int i = 0; i < headers.length && i < row.length; i++) {
|
||||
final headerName = headers[i];
|
||||
final cellValue = row[i];
|
||||
if (cellValue != null) {
|
||||
rowData[headerName] = cellValue;
|
||||
}
|
||||
}
|
||||
|
||||
// Basic validation - must have ticket_no and location
|
||||
if (rowData['ticket_no']?.toString().isNotEmpty == true &&
|
||||
rowData['location']?.toString().isNotEmpty == true) {
|
||||
rawDataList.add(rowData);
|
||||
validRows++;
|
||||
}
|
||||
|
||||
} catch (e, stackTrace) {
|
||||
// Skip rows that can't be parsed
|
||||
debugPrint('[SuspectedLocationService] Error parsing row $rowIndex: $e');
|
||||
continue;
|
||||
}
|
||||
|
||||
// Basic validation - must have ticket_no and location
|
||||
if (rowData['ticket_no']?.toString().isNotEmpty == true &&
|
||||
rowData['location']?.toString().isNotEmpty == true) {
|
||||
rawDataList.add(rowData);
|
||||
validRows++;
|
||||
}
|
||||
|
||||
} catch (e, stackTrace) {
|
||||
// Skip rows that can't be parsed
|
||||
debugPrint('[SuspectedLocationService] Error parsing row $rowIndex: $e');
|
||||
continue;
|
||||
}
|
||||
|
||||
debugPrint('[SuspectedLocationService] Parsed $validRows valid rows from ${dataRows.length} total rows');
|
||||
|
||||
final fetchTime = DateTime.now();
|
||||
|
||||
// Process raw data and save (calculates centroids once)
|
||||
await _cache.processAndSave(rawDataList, fetchTime);
|
||||
|
||||
debugPrint('[SuspectedLocationService] Successfully fetched and stored $validRows valid raw entries (${rawDataList.length} total)');
|
||||
return true;
|
||||
} catch (e, stackTrace) {
|
||||
debugPrint('[SuspectedLocationService] Attempt $attempt failed: $e');
|
||||
|
||||
if (attempt == maxRetries) {
|
||||
debugPrint('[SuspectedLocationService] All $maxRetries attempts failed');
|
||||
debugPrint('[SuspectedLocationService] Stack trace: $stackTrace');
|
||||
return false;
|
||||
} else {
|
||||
// Wait before retrying (exponential backoff)
|
||||
final delay = Duration(seconds: attempt * 10);
|
||||
debugPrint('[SuspectedLocationService] Retrying in ${delay.inSeconds} seconds...');
|
||||
await Future.delayed(delay);
|
||||
}
|
||||
}
|
||||
|
||||
debugPrint('[SuspectedLocationService] Parsed $validRows valid rows from ${dataRows.length} total rows');
|
||||
|
||||
final fetchTime = DateTime.now();
|
||||
|
||||
// Process raw data and save (calculates centroids once)
|
||||
await _cache.processAndSave(rawDataList, fetchTime);
|
||||
|
||||
debugPrint('[SuspectedLocationService] Successfully fetched and stored $validRows valid raw entries (${rawDataList.length} total)');
|
||||
return true;
|
||||
|
||||
} catch (e, stackTrace) {
|
||||
debugPrint('[SuspectedLocationService] Error fetching data: $e');
|
||||
debugPrint('[SuspectedLocationService] Stack trace: $stackTrace');
|
||||
return false;
|
||||
}
|
||||
|
||||
return false; // Should never reach here
|
||||
}
|
||||
|
||||
/// Get suspected locations within a bounding box
|
||||
List<SuspectedLocation> getLocationsInBounds({
|
||||
/// Get suspected locations within a bounding box (async)
|
||||
Future<List<SuspectedLocation>> getLocationsInBounds({
|
||||
required double north,
|
||||
required double south,
|
||||
required double east,
|
||||
required double west,
|
||||
}) async {
|
||||
return await _cache.getLocationsForBounds(LatLngBounds(
|
||||
LatLng(north, west),
|
||||
LatLng(south, east),
|
||||
));
|
||||
}
|
||||
|
||||
/// Get suspected locations within a bounding box (sync, for UI)
|
||||
List<SuspectedLocation> getLocationsInBoundsSync({
|
||||
required double north,
|
||||
required double south,
|
||||
required double east,
|
||||
required double west,
|
||||
}) {
|
||||
return _cache.getLocationsForBounds(LatLngBounds(
|
||||
return _cache.getLocationsForBoundsSync(LatLngBounds(
|
||||
LatLng(north, west),
|
||||
LatLng(south, east),
|
||||
));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/// Simple CSV parser for compute() - must be top-level function
|
||||
List<List<dynamic>> _parseCSV(String csvBody) {
|
||||
return const CsvToListConverter(
|
||||
|
||||
@@ -12,14 +12,29 @@ class SuspectedLocationState extends ChangeNotifier {
|
||||
/// Currently selected suspected location (for detail view)
|
||||
SuspectedLocation? get selectedLocation => _selectedLocation;
|
||||
|
||||
/// Get suspected locations in bounds (this should be called by the map view)
|
||||
List<SuspectedLocation> getLocationsInBounds({
|
||||
/// Get suspected locations in bounds (async)
|
||||
Future<List<SuspectedLocation>> getLocationsInBounds({
|
||||
required double north,
|
||||
required double south,
|
||||
required double east,
|
||||
required double west,
|
||||
}) async {
|
||||
return await _service.getLocationsInBounds(
|
||||
north: north,
|
||||
south: south,
|
||||
east: east,
|
||||
west: west,
|
||||
);
|
||||
}
|
||||
|
||||
/// Get suspected locations in bounds (sync, for UI)
|
||||
List<SuspectedLocation> getLocationsInBoundsSync({
|
||||
required double north,
|
||||
required double south,
|
||||
required double east,
|
||||
required double west,
|
||||
}) {
|
||||
return _service.getLocationsInBounds(
|
||||
return _service.getLocationsInBoundsSync(
|
||||
north: north,
|
||||
south: south,
|
||||
east: east,
|
||||
@@ -34,7 +49,7 @@ class SuspectedLocationState extends ChangeNotifier {
|
||||
bool get isLoading => _isLoading;
|
||||
|
||||
/// Last time data was fetched
|
||||
DateTime? get lastFetchTime => _service.lastFetchTime;
|
||||
Future<DateTime?> get lastFetchTime => _service.lastFetchTime;
|
||||
|
||||
/// Initialize the state
|
||||
Future<void> init({bool offlineMode = false}) async {
|
||||
@@ -47,7 +62,7 @@ class SuspectedLocationState extends ChangeNotifier {
|
||||
await _service.setEnabled(enabled);
|
||||
|
||||
// If enabling and no data exists, fetch it now
|
||||
if (enabled && !_service.hasData) {
|
||||
if (enabled && !(await _service.hasData)) {
|
||||
await _fetchData();
|
||||
}
|
||||
|
||||
|
||||
@@ -84,7 +84,7 @@ class MarkerLayerBuilder {
|
||||
final suspectedLocationMarkers = <Marker>[];
|
||||
if (appState.suspectedLocationsEnabled && mapBounds != null &&
|
||||
currentZoom >= (appState.uploadMode == UploadMode.sandbox ? kOsmApiMinZoomLevel : kNodeMinZoomLevel)) {
|
||||
final suspectedLocations = appState.getSuspectedLocationsInBounds(
|
||||
final suspectedLocations = appState.getSuspectedLocationsInBoundsSync(
|
||||
north: mapBounds.north,
|
||||
south: mapBounds.south,
|
||||
east: mapBounds.east,
|
||||
|
||||
50
pubspec.lock
50
pubspec.lock
@@ -484,7 +484,7 @@ packages:
|
||||
source: hosted
|
||||
version: "3.2.1"
|
||||
path:
|
||||
dependency: transitive
|
||||
dependency: "direct main"
|
||||
description:
|
||||
name: path
|
||||
sha256: "75cca69d1490965be98c73ceaea117e8a04dd21217b37b292c9ddbec0d955bc5"
|
||||
@@ -680,6 +680,46 @@ packages:
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "7.0.0"
|
||||
sqflite:
|
||||
dependency: "direct main"
|
||||
description:
|
||||
name: sqflite
|
||||
sha256: e2297b1da52f127bc7a3da11439985d9b536f75070f3325e62ada69a5c585d03
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.4.2"
|
||||
sqflite_android:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: sqflite_android
|
||||
sha256: "2b3070c5fa881839f8b402ee4a39c1b4d561704d4ebbbcfb808a119bc2a1701b"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.4.1"
|
||||
sqflite_common:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: sqflite_common
|
||||
sha256: "6ef422a4525ecc601db6c0a2233ff448c731307906e92cabc9ba292afaae16a6"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.5.6"
|
||||
sqflite_darwin:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: sqflite_darwin
|
||||
sha256: "279832e5cde3fe99e8571879498c9211f3ca6391b0d818df4e17d9fff5c6ccb3"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.4.2"
|
||||
sqflite_platform_interface:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: sqflite_platform_interface
|
||||
sha256: "8dd4515c7bdcae0a785b0062859336de775e8c65db81ae33dd5445f35be61920"
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "2.4.0"
|
||||
string_scanner:
|
||||
dependency: transitive
|
||||
description:
|
||||
@@ -688,6 +728,14 @@ packages:
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "1.4.1"
|
||||
synchronized:
|
||||
dependency: transitive
|
||||
description:
|
||||
name: synchronized
|
||||
sha256: c254ade258ec8282947a0acbbc90b9575b4f19673533ee46f2f6e9b3aeefd7c0
|
||||
url: "https://pub.dev"
|
||||
source: hosted
|
||||
version: "3.4.0"
|
||||
term_glyph:
|
||||
dependency: transitive
|
||||
description:
|
||||
|
||||
@@ -1,7 +1,7 @@
|
||||
name: deflockapp
|
||||
description: Map public surveillance infrastructure with OpenStreetMap
|
||||
publish_to: "none"
|
||||
version: 1.7.0+30 # The thing after the + is the version code, incremented with each release
|
||||
version: 1.8.0+31 # The thing after the + is the version code, incremented with each release
|
||||
|
||||
environment:
|
||||
sdk: ">=3.5.0 <4.0.0" # oauth2_client 4.x needs Dart 3.5+
|
||||
@@ -30,6 +30,8 @@ dependencies:
|
||||
|
||||
# Persistence
|
||||
shared_preferences: ^2.2.2
|
||||
sqflite: ^2.4.1
|
||||
path: ^1.8.3
|
||||
uuid: ^4.0.0
|
||||
package_info_plus: ^8.0.0
|
||||
csv: ^6.0.0
|
||||
|
||||
Reference in New Issue
Block a user