Label 4t eta decoding

lib/MessageDecoder.ts

@@ -46,6 +46,7 @@ export class MessageDecoder {
     this.registerPlugin(new Plugins.Label_4J_POS(this));
     this.registerPlugin(new Plugins.Label_4N(this));
     this.registerPlugin(new Plugins.Label_4T_AGFSR(this));
+    this.registerPlugin(new Plugins.Label_4T_ETA(this));
     this.registerPlugin(new Plugins.Label_B6_Forwardslash(this));
     this.registerPlugin(new Plugins.Label_H1_FLR(this));
     this.registerPlugin(new Plugins.Label_H1_OHMA(this));

lib/plugins/Label_4T_AGFSR.test.ts

@@ -1,7 +1,7 @@
 import { MessageDecoder } from '../MessageDecoder';
 import { Label_4T_AGFSR } from './Label_4T_AGFSR';
 
-describe('Label 4T ', () => {
+describe('Label 4T ETA', () => {
 
   let plugin: Label_4T_AGFSR;
 

lib/plugins/Label_4T_ETA.test.ts

@@ -0,0 +1,57 @@
+import { MessageDecoder } from '../MessageDecoder';
+import { Label_4T_ETA } from './Label_4T_ETA';
+
+describe('Label 4T ETA', () => {
+
+  let plugin: Label_4T_ETA;
+
+  beforeEach(() => {
+    const decoder = new MessageDecoder();
+    plugin = new Label_4T_ETA(decoder);
+  });
+
+
+  test('matches qualifiers', () => {
+    expect(plugin.decode).toBeDefined();
+    expect(plugin.name).toBe('label-4t-eta');
+    expect(plugin.qualifiers).toBeDefined();
+    expect(plugin.qualifiers()).toEqual({
+      labels: ['4T'],
+      preambles: ['ETA'],
+    });
+  });
+
+
+  test('decodes msg 1', () => {
+    const text = 'ETA AC7221/13/14 YYZ 0902Z';
+
+    const decodeResult = plugin.decode({ text: text });
+
+    expect(decodeResult.decoded).toBe(true);
+    expect(decodeResult.decoder.decodeLevel).toBe('full');
+    expect(decodeResult.formatted.description).toBe('ETA Report');
+    expect(decodeResult.formatted.items.length).toBe(5);
+    expect(decodeResult.formatted.items[0].label).toBe('Flight Number');
+    expect(decodeResult.formatted.items[0].value).toBe('AC7221');
+    expect(decodeResult.formatted.items[1].label).toBe('Departure Day');
+    expect(decodeResult.formatted.items[1].value).toBe('13');
+    expect(decodeResult.formatted.items[2].label).toBe('Arrival Day');
+    expect(decodeResult.formatted.items[2].value).toBe('14');
+    expect(decodeResult.formatted.items[3].label).toBe('Destination');
+    expect(decodeResult.formatted.items[3].value).toBe('YYZ');
+    expect(decodeResult.formatted.items[4].label).toBe('Estimated Time of Arrival');
+    expect(decodeResult.formatted.items[4].value).toBe('09:02:00');
+  });
+
+
+  test('decodes <invalid>', () => {
+
+    const text = 'ETA Bogus message';
+    const decodeResult = plugin.decode({ text: text });
+
+    expect(decodeResult.decoded).toBe(false);
+    expect(decodeResult.decoder.decodeLevel).toBe('none');
+    expect(decodeResult.formatted.description).toBe('ETA Report');
+    expect(decodeResult.formatted.items.length).toBe(0);
+  });
+});

lib/plugins/Label_4T_ETA.ts

@@ -0,0 +1,50 @@
+import { DateTimeUtils } from '../DateTimeUtils';
+import { DecoderPlugin } from '../DecoderPlugin';
+import { DecodeResult, Message, Options } from '../DecoderPluginInterface';
+import { CoordinateUtils } from '../utils/coordinate_utils';
+import { ResultFormatter } from '../utils/result_formatter';
+
+// General Aviation Position Report
+export class Label_4T_ETA extends DecoderPlugin {
+  name = 'label-4t-eta';
+
+  qualifiers() { // eslint-disable-line class-methods-use-this
+    return {
+      labels: ['4T'],
+      preambles: ['ETA'],
+    };
+  }
+
+  decode(message: Message, options: Options = {}) : DecodeResult {
+    const decodeResult = this.defaultResult();
+    decodeResult.decoder.name = this.name;
+    decodeResult.formatted.description = 'ETA Report';
+    decodeResult.message = message;
+
+    const data = message.text.substring(3).split('/');
+
+    if(!message.text.startsWith('ETA') || data.length !== 3) {
+      if (options.debug) {
+        console.log(`Decoder: Unknown 4T message: ${message.text}`);
+      }
+      ResultFormatter.unknown(decodeResult, message.text);
+      decodeResult.decoded = false;
+      decodeResult.decoder.decodeLevel = 'none';
+      return decodeResult;
+    }
+
+    ResultFormatter.flightNumber(decodeResult, data[0].trim());
+    ResultFormatter.departureDay(decodeResult, Number(data[1]));
+    const etaData = data[2].split(' ');
+    ResultFormatter.arrivalDay(decodeResult, Number(etaData[0]));
+    ResultFormatter.arrivalAirport(decodeResult, etaData[1], 'IATA');
+    ResultFormatter.eta(decodeResult, DateTimeUtils.convertHHMMSSToTod(etaData[2].substring(0,4)));
+
+    decodeResult.decoded = true;
+    decodeResult.decoder.decodeLevel = 'full';
+
+    return decodeResult;
+  }
+}
+
+export default {};

lib/plugins/official.ts

@@ -31,6 +31,7 @@ export * from './Label_4A_Slash_01';
 export * from './Label_4J_POS';
 export * from './Label_4N';
 export * from './Label_4T_AGFSR';
+export * from './Label_4T_ETA';
 export * from './Label_80';
 export * from './Label_83';
 export * from './Label_8E';