mirror of
https://github.com/dz0ny/meshcore-sar.git
synced 2026-08-11 16:30:28 +00:00
Implement meshcore-open route reload
This commit is contained in:
Janez T
79
lib/models/message_route_metadata.dart
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79
lib/models/message_route_metadata.dart
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@@ -0,0 +1,79 @@
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import 'path_selection.dart';
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class MessageRouteMetadata {
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final PathSelectionMode mode;
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final bool routerFallbackAttempted;
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final String? relayName;
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final String? relayKey6;
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final String? canonicalPath;
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final int? hopCount;
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const MessageRouteMetadata({
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required this.mode,
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required this.routerFallbackAttempted,
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this.relayName,
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this.relayKey6,
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this.canonicalPath,
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this.hopCount,
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});
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factory MessageRouteMetadata.fromSelection(
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PathSelection selection, {
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required bool routerFallbackAttempted,
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}) {
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return MessageRouteMetadata(
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mode: selection.mode,
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routerFallbackAttempted: routerFallbackAttempted,
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relayName: selection.relayName,
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relayKey6: selection.relayKey6,
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canonicalPath: selection.canonicalPath.isEmpty
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? null
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: selection.canonicalPath,
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hopCount: selection.hopCount > 0 ? selection.hopCount : null,
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);
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}
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String get modeLabel {
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switch (mode) {
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case PathSelectionMode.directCurrent:
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return 'Current direct path';
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case PathSelectionMode.directHistorical:
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return 'Rotated direct path';
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case PathSelectionMode.flood:
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return 'Flood route';
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case PathSelectionMode.nearestRouter:
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final suffix = relayName?.trim().isNotEmpty == true
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? ' via $relayName'
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: relayKey6?.trim().isNotEmpty == true
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? ' via $relayKey6'
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: '';
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return 'Nearest router$suffix';
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}
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}
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Map<String, dynamic> toJson() {
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return {
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'mode': mode.name,
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'router_fallback_attempted': routerFallbackAttempted,
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'relay_name': relayName,
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'relay_key6': relayKey6,
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'canonical_path': canonicalPath,
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'hop_count': hopCount,
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};
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}
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factory MessageRouteMetadata.fromJson(Map<String, dynamic> json) {
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return MessageRouteMetadata(
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mode: PathSelectionMode.values.firstWhere(
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(value) => value.name == json['mode'],
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orElse: () => PathSelectionMode.directCurrent,
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),
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routerFallbackAttempted:
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json['router_fallback_attempted'] as bool? ?? false,
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relayName: json['relay_name'] as String?,
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relayKey6: json['relay_key6'] as String?,
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canonicalPath: json['canonical_path'] as String?,
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hopCount: json['hop_count'] as int?,
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);
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}
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}
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182
lib/models/path_history.dart
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182
lib/models/path_history.dart
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@@ -0,0 +1,182 @@
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class PathRecord {
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final List<int> pathBytes;
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final int hopCount;
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final int hashSize;
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final int successCount;
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final int failureCount;
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final int lastRoundTripTimeMs;
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final DateTime lastUsedAt;
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const PathRecord({
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required this.pathBytes,
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required this.hopCount,
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required this.hashSize,
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required this.successCount,
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required this.failureCount,
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required this.lastRoundTripTimeMs,
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required this.lastUsedAt,
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});
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String get signature =>
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pathBytes.map((byte) => byte.toRadixString(16).padLeft(2, '0')).join();
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double get successRate =>
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(successCount + 1) / (successCount + failureCount + 2);
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PathRecord copyWith({
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List<int>? pathBytes,
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int? hopCount,
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int? hashSize,
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int? successCount,
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int? failureCount,
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int? lastRoundTripTimeMs,
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DateTime? lastUsedAt,
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}) {
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return PathRecord(
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pathBytes: pathBytes ?? this.pathBytes,
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hopCount: hopCount ?? this.hopCount,
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hashSize: hashSize ?? this.hashSize,
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successCount: successCount ?? this.successCount,
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failureCount: failureCount ?? this.failureCount,
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lastRoundTripTimeMs: lastRoundTripTimeMs ?? this.lastRoundTripTimeMs,
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lastUsedAt: lastUsedAt ?? this.lastUsedAt,
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);
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}
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Map<String, dynamic> toJson() {
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return {
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'path_bytes': pathBytes,
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'hop_count': hopCount,
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'hash_size': hashSize,
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'success_count': successCount,
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'failure_count': failureCount,
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'last_round_trip_time_ms': lastRoundTripTimeMs,
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'last_used_at': lastUsedAt.toIso8601String(),
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};
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}
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factory PathRecord.fromJson(Map<String, dynamic> json) {
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return PathRecord(
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pathBytes: (json['path_bytes'] as List<dynamic>? ?? const <dynamic>[])
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.map((value) => value as int)
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.toList(),
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hopCount: json['hop_count'] as int? ?? 0,
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hashSize: json['hash_size'] as int? ?? 1,
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successCount: json['success_count'] as int? ?? 0,
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failureCount: json['failure_count'] as int? ?? 0,
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lastRoundTripTimeMs: json['last_round_trip_time_ms'] as int? ?? 0,
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lastUsedAt:
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DateTime.tryParse(json['last_used_at'] as String? ?? '') ??
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DateTime.fromMillisecondsSinceEpoch(0),
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);
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}
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}
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class FloodPathStats {
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final int successCount;
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final int failureCount;
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final int lastRoundTripTimeMs;
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final DateTime? lastUsedAt;
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const FloodPathStats({
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required this.successCount,
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required this.failureCount,
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required this.lastRoundTripTimeMs,
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required this.lastUsedAt,
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});
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const FloodPathStats.empty()
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: successCount = 0,
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failureCount = 0,
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lastRoundTripTimeMs = 0,
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lastUsedAt = null;
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FloodPathStats copyWith({
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int? successCount,
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int? failureCount,
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int? lastRoundTripTimeMs,
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DateTime? lastUsedAt,
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}) {
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return FloodPathStats(
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successCount: successCount ?? this.successCount,
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failureCount: failureCount ?? this.failureCount,
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lastRoundTripTimeMs: lastRoundTripTimeMs ?? this.lastRoundTripTimeMs,
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lastUsedAt: lastUsedAt ?? this.lastUsedAt,
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);
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}
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Map<String, dynamic> toJson() {
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return {
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'success_count': successCount,
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'failure_count': failureCount,
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'last_round_trip_time_ms': lastRoundTripTimeMs,
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'last_used_at': lastUsedAt?.toIso8601String(),
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};
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}
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factory FloodPathStats.fromJson(Map<String, dynamic> json) {
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return FloodPathStats(
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successCount: json['success_count'] as int? ?? 0,
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failureCount: json['failure_count'] as int? ?? 0,
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lastRoundTripTimeMs: json['last_round_trip_time_ms'] as int? ?? 0,
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lastUsedAt: DateTime.tryParse(json['last_used_at'] as String? ?? ''),
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);
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}
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}
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class ContactPathHistory {
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final String contactPublicKeyHex;
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final List<PathRecord> directPaths;
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final FloodPathStats floodStats;
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final int rotationIndex;
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const ContactPathHistory({
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required this.contactPublicKeyHex,
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required this.directPaths,
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required this.floodStats,
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required this.rotationIndex,
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});
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const ContactPathHistory.empty(this.contactPublicKeyHex)
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: directPaths = const <PathRecord>[],
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floodStats = const FloodPathStats.empty(),
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rotationIndex = 0;
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ContactPathHistory copyWith({
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List<PathRecord>? directPaths,
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FloodPathStats? floodStats,
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int? rotationIndex,
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}) {
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return ContactPathHistory(
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contactPublicKeyHex: contactPublicKeyHex,
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directPaths: directPaths ?? this.directPaths,
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floodStats: floodStats ?? this.floodStats,
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rotationIndex: rotationIndex ?? this.rotationIndex,
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);
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}
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Map<String, dynamic> toJson() {
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return {
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'direct_paths': directPaths.map((record) => record.toJson()).toList(),
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'flood_stats': floodStats.toJson(),
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'rotation_index': rotationIndex,
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};
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}
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factory ContactPathHistory.fromJson(
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String contactPublicKeyHex,
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Map<String, dynamic> json,
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) {
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return ContactPathHistory(
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contactPublicKeyHex: contactPublicKeyHex,
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directPaths: (json['direct_paths'] as List<dynamic>? ?? const <dynamic>[])
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.whereType<Map<String, dynamic>>()
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.map(PathRecord.fromJson)
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.toList(),
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floodStats: json['flood_stats'] is Map<String, dynamic>
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? FloodPathStats.fromJson(json['flood_stats'] as Map<String, dynamic>)
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: const FloodPathStats.empty(),
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rotationIndex: json['rotation_index'] as int? ?? 0,
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);
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}
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}
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65
lib/models/path_selection.dart
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65
lib/models/path_selection.dart
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@@ -0,0 +1,65 @@
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import 'dart:typed_data';
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enum PathSelectionMode { directCurrent, directHistorical, flood, nearestRouter }
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class PathSelection {
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final PathSelectionMode mode;
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final Uint8List pathBytes;
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final int hopCount;
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final int hashSize;
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final String? relayName;
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final String? relayKey6;
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const PathSelection({
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required this.mode,
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required this.pathBytes,
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required this.hopCount,
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required this.hashSize,
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this.relayName,
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this.relayKey6,
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});
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PathSelection.flood()
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: mode = PathSelectionMode.flood,
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pathBytes = Uint8List(0),
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hopCount = -1,
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hashSize = 1,
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relayName = null,
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relayKey6 = null;
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bool get usesFlood => mode == PathSelectionMode.flood;
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bool get hasDirectPath => !usesFlood && pathBytes.isNotEmpty && hopCount > 0;
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String get canonicalPath {
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if (!hasDirectPath) return '';
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final hops = <String>[];
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for (var index = 0; index < pathBytes.length; index += hashSize) {
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hops.add(
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pathBytes
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.sublist(index, index + hashSize)
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.map((byte) => byte.toRadixString(16).padLeft(2, '0'))
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.join()
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.toUpperCase(),
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);
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}
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return hops.join(',');
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}
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PathSelection copyWith({
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PathSelectionMode? mode,
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Uint8List? pathBytes,
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int? hopCount,
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int? hashSize,
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String? relayName,
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String? relayKey6,
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}) {
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return PathSelection(
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mode: mode ?? this.mode,
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pathBytes: pathBytes ?? this.pathBytes,
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hopCount: hopCount ?? this.hopCount,
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hashSize: hashSize ?? this.hashSize,
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relayName: relayName ?? this.relayName,
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relayKey6: relayKey6 ?? this.relayKey6,
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);
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}
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}
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