mirror of
https://github.com/dz0ny/meshcore-sar.git
synced 2026-08-11 16:30:28 +00:00
Add CompassSarList widget and refactor DetailedCompassDialog
- Introduced CompassSarList widget to display filtered SAR markers with distance and bearing information. - Refactored DetailedCompassDialog to integrate CompassSarList and CompassContactList for better organization. - Removed the previous filter dialog implementation and replaced it with a more modular CompassFilters widget. - Simplified the handling of zoom and scale updates in the compass view. - Cleaned up unused code related to previous implementations of contact and SAR marker lists.
This commit is contained in:
Janez T
398
lib/services/protocol/frame_parser.dart
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398
lib/services/protocol/frame_parser.dart
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import 'dart:typed_data';
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import '../../models/contact.dart';
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import '../../models/message.dart';
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import '../buffer_reader.dart';
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import '../meshcore_constants.dart';
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/// Parses incoming BLE frames from the MeshCore device
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class FrameParser {
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/// Parse ContactsStart response
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static int parseContactsStart(BufferReader reader) {
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return reader.readUInt32LE();
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}
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/// Parse Contact response
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static Contact parseContact(BufferReader reader) {
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final publicKey = reader.readBytes(32);
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final typeByte = reader.readByte();
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final type = ContactType.fromValue(typeByte);
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final flags = reader.readByte();
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final outPathLen = reader.readInt8();
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final outPath = reader.readBytes(64);
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final advName = reader.readCString(32);
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final lastAdvert = reader.readUInt32LE();
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final advLat = reader.readInt32LE();
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final advLon = reader.readInt32LE();
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final lastMod = reader.readUInt32LE();
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return Contact(
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publicKey: publicKey,
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type: type,
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flags: flags,
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outPathLen: outPathLen,
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outPath: outPath,
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advName: advName,
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lastAdvert: lastAdvert,
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advLat: advLat,
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advLon: advLon,
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lastMod: lastMod,
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);
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}
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/// Parse Sent confirmation response
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static Map<String, dynamic> parseSentConfirmation(BufferReader reader) {
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if (reader.remainingBytesCount >= 9) {
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final sendType = reader.readByte();
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final isFloodMode = sendType == 1;
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final expectedAckOrTagBytes = reader.readBytes(4);
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final expectedAckTag = ByteData.sublistView(Uint8List.fromList(expectedAckOrTagBytes))
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.getUint32(0, Endian.little);
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final suggestedTimeout = reader.readUInt32LE();
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return {
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'expectedAckTag': expectedAckTag,
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'suggestedTimeout': suggestedTimeout,
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'isFloodMode': isFloodMode,
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};
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}
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return {};
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}
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/// Parse ContactMessage response
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static Message parseContactMessage(BufferReader reader) {
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final pubKeyPrefix = reader.readBytes(6);
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final pathLen = reader.readByte();
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final txtTypeByte = reader.readByte();
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final txtType = MessageTextType.fromValue(txtTypeByte);
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final senderTimestamp = reader.readUInt32LE();
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String text;
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if (txtType == MessageTextType.signedPlain) {
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// Signed message format: [4-byte sender prefix][UTF-8 text]
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if (reader.remainingBytesCount >= 4) {
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reader.readBytes(4); // Skip extra sender prefix
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text = reader.hasRemaining ? reader.readString() : '';
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} else {
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text = reader.readString();
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}
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} else {
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text = reader.readString();
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}
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return Message(
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id: '${DateTime.now().millisecondsSinceEpoch}_${pubKeyPrefix.map((b) => b.toRadixString(16)).join()}',
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messageType: MessageType.contact,
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senderPublicKeyPrefix: pubKeyPrefix,
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pathLen: pathLen,
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textType: txtType,
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senderTimestamp: senderTimestamp,
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text: text,
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receivedAt: DateTime.now(),
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);
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}
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/// Parse ChannelMessage response
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static Message parseChannelMessage(BufferReader reader) {
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final channelIdx = reader.readInt8();
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final pathLen = reader.readByte();
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final txtTypeByte = reader.readByte();
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final txtType = MessageTextType.fromValue(txtTypeByte);
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final senderTimestamp = reader.readUInt32LE();
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String text;
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if (txtType == MessageTextType.signedPlain) {
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if (reader.remainingBytesCount >= 4) {
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reader.readBytes(4); // Skip extra sender prefix
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text = reader.hasRemaining ? reader.readString() : '';
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} else {
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text = reader.readString();
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}
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} else {
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text = reader.readString();
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}
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return Message(
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id: '${DateTime.now().millisecondsSinceEpoch}_ch$channelIdx',
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messageType: MessageType.channel,
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channelIdx: channelIdx,
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pathLen: pathLen,
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textType: txtType,
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senderTimestamp: senderTimestamp,
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text: text,
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receivedAt: DateTime.now(),
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);
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}
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/// Parse TelemetryResponse push
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static Map<String, dynamic> parseTelemetryResponse(BufferReader reader) {
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reader.readByte(); // reserved
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final pubKeyPrefix = reader.readBytes(6);
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final lppSensorData = reader.readRemainingBytes();
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return {
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'publicKeyPrefix': pubKeyPrefix,
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'lppSensorData': lppSensorData,
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};
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}
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/// Parse BinaryResponse push
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static Map<String, dynamic> parseBinaryResponse(BufferReader reader) {
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reader.readByte(); // reserved
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final tag = reader.readUInt32LE();
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final responseData = reader.readRemainingBytes();
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return {
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'publicKeyPrefix': Uint8List(6), // Empty prefix
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'tag': tag,
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'responseData': responseData,
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};
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}
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/// Parse DeviceInfo response
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static Map<String, dynamic> parseDeviceInfo(BufferReader reader) {
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if (reader.remainingBytesCount < 1) {
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return {};
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}
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final firmwareVersion = reader.readByte();
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int? maxContacts;
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int? maxChannels;
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int? blePin;
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if (reader.remainingBytesCount >= 6) {
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final maxContactsDiv2 = reader.readByte();
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maxContacts = maxContactsDiv2 * 2;
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maxChannels = reader.readByte();
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blePin = reader.readUInt32LE();
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}
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String? firmwareBuildDate;
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if (reader.remainingBytesCount >= 12) {
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final buildDateBytes = reader.readBytes(12);
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firmwareBuildDate =
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String.fromCharCodes(buildDateBytes.takeWhile((b) => b != 0));
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}
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String? manufacturerModel;
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if (reader.remainingBytesCount >= 40) {
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final modelBytes = reader.readBytes(40);
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manufacturerModel =
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String.fromCharCodes(modelBytes.takeWhile((b) => b != 0));
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}
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String? semanticVersion;
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if (reader.remainingBytesCount >= 20) {
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final versionBytes = reader.readBytes(20);
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semanticVersion =
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String.fromCharCodes(versionBytes.takeWhile((b) => b != 0));
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}
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return {
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'firmwareVersion': firmwareVersion,
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'maxContacts': maxContacts,
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'maxChannels': maxChannels,
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'blePin': blePin,
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'firmwareBuildDate': firmwareBuildDate,
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'manufacturerModel': manufacturerModel,
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'semanticVersion': semanticVersion,
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};
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}
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/// Parse SelfInfo response
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static Map<String, dynamic> parseSelfInfo(BufferReader reader) {
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if (reader.remainingBytesCount < 54) {
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reader.readRemainingBytes();
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return {};
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}
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final deviceType = reader.readByte();
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final txPower = reader.readByte();
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final maxTxPower = reader.readByte();
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final publicKey = reader.readBytes(32);
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final advLatBytes = reader.readBytes(4);
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final advLat = ByteData.sublistView(Uint8List.fromList(advLatBytes))
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.getInt32(0, Endian.little);
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final advLonBytes = reader.readBytes(4);
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final advLon = ByteData.sublistView(Uint8List.fromList(advLonBytes))
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.getInt32(0, Endian.little);
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final multiAcks = reader.readByte();
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final advertLocPolicy = reader.readByte();
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final telemetryModes = reader.readByte();
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final manualAddContacts = reader.readByte();
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final radioFreqBytes = reader.readBytes(4);
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final radioFreq = ByteData.sublistView(Uint8List.fromList(radioFreqBytes))
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.getUint32(0, Endian.little);
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final radioBwBytes = reader.readBytes(4);
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final radioBw = ByteData.sublistView(Uint8List.fromList(radioBwBytes))
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.getUint32(0, Endian.little);
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final radioSf = reader.readByte();
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final radioCr = reader.readByte();
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String? selfName;
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if (reader.hasRemaining) {
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final nameBytes = reader.readRemainingBytes();
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selfName = String.fromCharCodes(nameBytes.takeWhile((b) => b != 0));
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}
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return {
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'deviceType': deviceType,
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'txPower': txPower,
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'maxTxPower': maxTxPower,
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'publicKey': publicKey,
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'advLat': advLat,
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'advLon': advLon,
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'manualAddContacts': manualAddContacts == 1,
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'radioFreq': radioFreq,
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'radioBw': radioBw,
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'radioSf': radioSf,
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'radioCr': radioCr,
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'selfName': selfName,
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};
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}
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/// Parse Advert push
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static Uint8List? parseAdvert(BufferReader reader) {
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if (reader.remainingBytesCount >= 32) {
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return reader.readBytes(32);
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}
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return null;
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}
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/// Parse PathUpdated push
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static Uint8List? parsePathUpdated(BufferReader reader) {
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if (reader.remainingBytesCount >= 32) {
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return reader.readBytes(32);
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}
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return null;
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}
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/// Parse SendConfirmed push
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static Map<String, dynamic> parseSendConfirmed(BufferReader reader) {
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if (reader.remainingBytesCount >= 8) {
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final ackCodeBytes = reader.readBytes(4);
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final ackCode = ByteData.sublistView(Uint8List.fromList(ackCodeBytes))
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.getUint32(0, Endian.little);
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final roundTripTime = reader.readUInt32LE();
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return {
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'ackCode': ackCode,
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'roundTripTime': roundTripTime,
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};
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}
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return {};
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}
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/// Parse LoginSuccess push
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static Map<String, dynamic> parseLoginSuccess(BufferReader reader) {
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if (reader.remainingBytesCount >= 11) {
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final permissions = reader.readByte();
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final isAdmin = (permissions & 0x01) != 0;
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final publicKeyPrefix = reader.readBytes(6);
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final tag = reader.readInt32LE();
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int? newPermissions;
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if (reader.hasRemaining) {
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newPermissions = reader.readByte();
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}
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return {
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'publicKeyPrefix': publicKeyPrefix,
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'permissions': permissions,
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'isAdmin': isAdmin,
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'tag': tag,
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'newPermissions': newPermissions,
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};
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}
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return {};
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}
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/// Parse LoginFail push
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static Uint8List? parseLoginFail(BufferReader reader) {
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if (reader.remainingBytesCount >= 7) {
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reader.readByte(); // reserved
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return reader.readBytes(6);
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}
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return null;
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}
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/// Parse StatusResponse push
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static Map<String, dynamic> parseStatusResponse(BufferReader reader) {
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if (reader.remainingBytesCount >= 7) {
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reader.readByte(); // reserved
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final publicKeyPrefix = reader.readBytes(6);
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final statusData = reader.readRemainingBytes();
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return {
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'publicKeyPrefix': publicKeyPrefix,
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'statusData': statusData,
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};
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}
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return {};
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}
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/// Parse CurrentTime response
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static int? parseCurrentTime(BufferReader reader) {
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if (reader.remainingBytesCount >= 4) {
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return reader.readUInt32LE();
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}
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return null;
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}
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/// Parse BatteryAndStorage response
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static Map<String, dynamic> parseBatteryAndStorage(BufferReader reader) {
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if (reader.remainingBytesCount >= 2) {
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final millivolts = reader.readUInt16LE();
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int? usedKb;
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int? totalKb;
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if (reader.remainingBytesCount >= 8) {
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usedKb = reader.readUInt32LE();
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totalKb = reader.readUInt32LE();
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} else if (reader.remainingBytesCount >= 4) {
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usedKb = reader.readUInt32LE();
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}
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return {
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'millivolts': millivolts,
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'usedKb': usedKb,
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'totalKb': totalKb,
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};
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}
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return {};
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}
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/// Parse Error response
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static int? parseError(BufferReader reader) {
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if (reader.hasRemaining) {
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return reader.readByte();
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}
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return null;
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}
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/// Get error message from error code
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static String getErrorMessage(int errorCode) {
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switch (errorCode) {
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case MeshCoreConstants.errUnsupportedCmd:
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return 'Unsupported command';
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case MeshCoreConstants.errNotFound:
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return 'Not found';
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case MeshCoreConstants.errTableFull:
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return 'Table full';
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case MeshCoreConstants.errBadState:
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return 'Bad state';
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case MeshCoreConstants.errFileIoError:
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return 'File I/O error';
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case MeshCoreConstants.errIllegalArg:
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return 'Illegal argument';
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default:
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return 'Error code: $errorCode';
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}
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}
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}
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Block a user