chore: Added simple option to view/copy crash-logs locally (#185)

Co-authored-by: PartyDonut <PartyDonut@users.noreply.github.com>

lib/providers/crash_log_provider.dart

@@ -0,0 +1,106 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+import 'package:collection/collection.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:logging/logging.dart';
+
+enum ErrorType {
+  severe,
+  warning,
+  shout,
+}
+
+class ErrorViewModel {
+  final LogRecord rec;
+
+  const ErrorViewModel({required this.rec});
+
+  ErrorType get type {
+    if (rec.level == Level.WARNING) {
+      return ErrorType.warning;
+    }
+    if (rec.level == Level.SHOUT) {
+      return ErrorType.shout;
+    }
+    return ErrorType.severe;
+  }
+
+  String get label {
+    var join = [
+      type.name.toUpperCase(),
+      "  |  ",
+      rec.message,
+    ].join();
+    if (join.length > 250) {
+      return "${join.substring(0, 80)}... \n \nTruncated copy log to see more";
+    } else {
+      return join;
+    }
+  }
+
+  String get content => [
+        rec.time.toIso8601String(),
+        "\n",
+        "\n",
+        rec.stackTrace,
+      ].whereNotNull().join();
+
+  String get clipBoard => [label, content].toString();
+
+  Color get color => switch (type) {
+        ErrorType.severe => Colors.redAccent,
+        ErrorType.warning => Colors.orange,
+        ErrorType.shout => Colors.yellowAccent,
+      };
+}
+
+final crashLogProvider = StateNotifierProvider<CrashLogNotifier, List<ErrorViewModel>>((ref) => CrashLogNotifier());
+
+class CrashLogNotifier extends StateNotifier<List<ErrorViewModel>> {
+  CrashLogNotifier() : super([]) {
+    init();
+  }
+
+  late final Logger logger;
+  final maxLength = 100;
+
+  void init() {
+    logger = Logger.root;
+    logger.level = Level.ALL;
+    logger.onRecord.listen(logPrint);
+    FlutterError.onError = (FlutterErrorDetails details) => logFile(details);
+    PlatformDispatcher.instance.onError = (error, stack) {
+      logFile(FlutterErrorDetails(
+        exception: error,
+        stack: stack,
+        library: 'Unhandled',
+      ));
+      return false;
+    };
+  }
+
+  void clearLogs() {
+    state = [];
+  }
+
+  void logPrint(LogRecord rec) {
+    if (kDebugMode) {
+      print('${rec.level.name}: ${rec.time}: ${rec.message}');
+    }
+    if (rec.level != Level.INFO) {
+      state = [ErrorViewModel(rec: rec), ...state];
+      if (state.length >= maxLength) {
+        state = state.sublist(0, maxLength);
+      }
+    }
+  }
+
+  void logFile(FlutterErrorDetails details) {
+    logger.severe('Flutter error: ${details.exception}', details.exception, details.stack!);
+
+    if (details.stack != null && kDebugMode) {
+      print('${details.stack}');
+    }
+  }
+}