add label 76401 parsing

lib/MessageDecoder.ts

@@ -58,7 +58,7 @@ const pluginClasses = [
   Plugins.Label_4T_AGFSR,
   Plugins.Label_4T_ETA,
   Plugins.Label_B6_Forwardslash,
-  Plugins.Label_H2_02E,
+  Plugins.Label_H1_76401,
   Plugins.Label_H1_ATIS,
   Plugins.Label_H1_EZF,
   Plugins.Label_H1_FLR,
@@ -68,6 +68,7 @@ const pluginClasses = [
   Plugins.Label_H1_Paren,
   Plugins.Label_H1_WRN,
   Plugins.Label_H1_StarPOS,
+  Plugins.Label_H2_02E,
   Plugins.Label_HX,
   Plugins.Label_58,
   Plugins.Label_80,

lib/plugins/Label_H1_76401.test.ts

@@ -0,0 +1,85 @@
+import { MessageDecoder } from '../MessageDecoder';
+import { Label_H1_76401 } from './Label_H1_76401';
+
+describe('Label H1 Preamble 76401', () => {
+  let plugin: Label_H1_76401;
+  const message = { label: 'H1', text: '' };
+
+  beforeEach(() => {
+    const decoder = new MessageDecoder();
+    plugin = new Label_H1_76401(decoder);
+  });
+  test('matches qualifiers', () => {
+    expect(plugin.decode).toBeDefined();
+    expect(plugin.name).toBe('label-h1-76401');
+    expect(plugin.qualifiers).toBeDefined();
+    expect(plugin.qualifiers()).toEqual({
+      labels: ['H1'],
+      preambles: ['76401\r\n'],
+    });
+  });
+
+  test('decodes variant 1', () => {
+    // https://app.airframes.io/messages/7903362642
+    message.text =
+      '76401\r\n02E23KDJTKBWI\r\nN35551W07767100084099M050276030G1801230030YY,\r\n';
+    const decodeResult = plugin.decode(message);
+
+    expect(decodeResult.decoded).toBe(true);
+    expect(decodeResult.decoder.decodeLevel).toBe('partial');
+    expect(decodeResult.raw.departure_icao).toBe('KDJT');
+    expect(decodeResult.raw.arrival_icao).toBe('KBWI');
+    expect(decodeResult.raw.position?.latitude).toBe(35.551);
+    expect(decodeResult.raw.position?.longitude).toBe(-77.671);
+    expect(decodeResult.raw.message_timestamp).toBe(520); // 00:08:40
+    expect(decodeResult.remaining.text).toBe(
+      '76401\r\n02E23\r\n99M050276030G1801230030YY,\r\n',
+    );
+  });
+
+  test('decodes variant 2', () => {
+    // https://app.airframes.io/messages/7903363689
+    message.text =
+      '76401\r\n02E23KBWIKBDL\r\nN39831W07515900082500M032334018B000025003005Z\r\n';
+    const decodeResult = plugin.decode(message);
+
+    expect(decodeResult.decoded).toBe(true);
+    expect(decodeResult.decoder.decodeLevel).toBe('partial');
+    expect(decodeResult.raw.departure_icao).toBe('KBWI');
+    expect(decodeResult.raw.arrival_icao).toBe('KBDL');
+    expect(decodeResult.raw.route?.waypoints?.length).toBe(1);
+    expect(decodeResult.raw.position?.latitude).toBe(39.831);
+    expect(decodeResult.raw.position?.longitude).toBe(-75.159);
+    expect(decodeResult.raw.message_timestamp).toBe(505); // 00:08:25
+    expect(decodeResult.remaining.text).toBe(
+      '76401\r\n02E23\r\n00M032334018B000025003005Z\r\n',
+    );
+  });
+
+  test('decodes multiple positions', () => {
+    // https://app.airframes.io/messages/7903359093
+    message.text =
+      '76401\r\n02E23KPHXKBUR\r\nN34550W11842100030787M001223021G000025::Q030;\r\nN34499W11847100040641P003227022G000025::2HGMY\r\nN34443W11851500050596P004225020G000025::B0YY,\r\nN34386W11855900060596P004227017G000025::B0G';
+    const decodeResult = plugin.decode(message);
+
+    expect(decodeResult.decoded).toBe(true);
+    expect(decodeResult.decoder.decodeLevel).toBe('partial');
+    expect(decodeResult.raw.departure_icao).toBe('KPHX');
+    expect(decodeResult.raw.arrival_icao).toBe('KBUR');
+    expect(decodeResult.raw.route?.waypoints?.length).toBe(4);
+    expect(decodeResult.raw.position?.latitude).toBe(34.386);
+    expect(decodeResult.raw.position?.longitude).toBe(-118.559);
+    expect(decodeResult.raw.message_timestamp).toBe(365); // 00:06:05
+    expect(decodeResult.remaining.text).toBe(
+      '76401\r\n02E23\r\n87M001223021G000025::Q030;\r\n41P003227022G000025::2HGMY\r\n96P004225020G000025::B0YY,\r\n96P004227017G000025::B0G',
+    );
+  });
+  test('does not decode invalid', () => {
+    message.text = '76401\r\n<Invalid text>';
+    const decodeResult = plugin.decode(message);
+
+    expect(decodeResult.decoded).toBe(false);
+    expect(decodeResult.decoder.decodeLevel).toBe('none');
+    expect(decodeResult.formatted.description).toBe('Position Report');
+  });
+});

lib/plugins/Label_H1_76401.ts

@@ -0,0 +1,78 @@
+import { DateTimeUtils } from '../DateTimeUtils';
+import { DecoderPlugin } from '../DecoderPlugin';
+import { DecodeResult, Message, Options } from '../DecoderPluginInterface';
+import { Waypoint } from '../types/waypoint';
+import { CoordinateUtils } from '../utils/coordinate_utils';
+import { ResultFormatter } from '../utils/result_formatter';
+
+export class Label_H1_76401 extends DecoderPlugin {
+  name = 'label-h1-76401';
+
+  qualifiers() {
+    return {
+      labels: ['H1'],
+      preambles: ['76401\r\n'],
+    };
+  }
+
+  decode(message: Message, options: Options = {}): DecodeResult {
+    const decodeResult = this.initResult(message, 'Position Report');
+
+    const lines = message.text.split('\r\n');
+
+    if (lines.length < 3) {
+      return decodeResult;
+    }
+
+    ResultFormatter.unknown(decodeResult, lines[0], '\r\n');
+
+    ResultFormatter.unknown(decodeResult, lines[1].substring(0, 5), '\r\n');
+    ResultFormatter.departureAirport(decodeResult, lines[1].substring(5, 9));
+    ResultFormatter.arrivalAirport(decodeResult, lines[1].substring(9, 13));
+    ResultFormatter.unknown(decodeResult, lines[1].substring(13), ''); // should have nothing left on line 1
+
+    const waypoints: Waypoint[] = [];
+    for (const line of lines.slice(2)) {
+      const position = CoordinateUtils.decodeStringCoordinates(
+        line.substring(0, 13),
+      );
+      if (position) {
+        waypoints.push({
+          name: CoordinateUtils.coordinateString(position),
+          latitude: position.latitude,
+          longitude: position.longitude,
+          time: DateTimeUtils.convertHHMMSSToTod(line.substring(13, 19)),
+        });
+      } else {
+        ResultFormatter.unknown(decodeResult, line.substring(0, 19), '');
+      }
+      ResultFormatter.unknown(decodeResult, line.substring(19), '\r\n');
+    }
+
+    ResultFormatter.route(decodeResult, { waypoints: waypoints });
+    // add position from the last waypoint for fun mapping
+    if (waypoints.length > 0) {
+      const lastWaypoint = waypoints[waypoints.length - 1];
+      // should be true, making typescript happy
+      if (
+        lastWaypoint.latitude !== undefined &&
+        lastWaypoint.longitude !== undefined
+      ) {
+        ResultFormatter.position(decodeResult, {
+          latitude: lastWaypoint.latitude,
+          longitude: lastWaypoint.longitude,
+        });
+      }
+
+      // should be true, making typescript happy
+      if (lastWaypoint.time !== undefined) {
+        ResultFormatter.timestamp(decodeResult, lastWaypoint.time);
+      }
+    }
+
+    decodeResult.decoded = true;
+    decodeResult.decoder.decodeLevel = 'partial';
+
+    return decodeResult;
+  }
+}

lib/plugins/official.ts

@@ -49,7 +49,7 @@ export * from './Label_83';
 export * from './Label_8E';
 export * from './Label_B6';
 export * from './Label_ColonComma';
-export * from './Label_H2_02E';
+export * from './Label_H1_76401';
 export * from './Label_H1_ATIS';
 export * from './Label_H1_EZF';
 export * from './Label_H1_FLR';
@@ -59,6 +59,7 @@ export * from './Label_H1_OFP';
 export * from './Label_H1_Paren';
 export * from './Label_H1_StarPOS';
 export * from './Label_H1_WRN';
+export * from './Label_H2_02E';
 export * from './Label_HX';
 export * from './Label_MA';
 export * from './Label_SQ';