68 lines
2.8 KiB
JavaScript
68 lines
2.8 KiB
JavaScript
// Ship/Vessel Tracking — aisstream.io (free real-time global AIS)
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// Also includes fallback to public vessel tracking data
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// Detects: dark ships, sanctions evasion, naval deployments, port congestion
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import { safeFetch } from '../utils/fetch.mjs';
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// aisstream.io requires a WebSocket connection for real-time data
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// For briefing mode, we'll use snapshot-based approaches
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// MarineTraffic-style density estimation via public endpoints
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// The real power comes from running a persistent WebSocket listener
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// Key maritime chokepoints to monitor
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const CHOKEPOINTS = {
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straitOfHormuz: { label: 'Strait of Hormuz', lat: 26.5, lon: 56.5, note: '20% of world oil' },
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suezCanal: { label: 'Suez Canal', lat: 30.5, lon: 32.3, note: '12% of world trade' },
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straitOfGibraltar: { label: 'Strait of Gibraltar', lat: 36.0, lon: -5.7, note: 'Gateway to Mediterranean, ~10-20% global trade influence' },
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straitOfMalacca: { label: 'Strait of Malacca', lat: 2.5, lon: 101.5, note: '25% of world trade' },
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babElMandeb: { label: 'Bab el-Mandeb', lat: 12.6, lon: 43.3, note: 'Red Sea gateway' },
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taiwanStrait: { label: 'Taiwan Strait', lat: 24.0, lon: 119.0, note: '88% of largest container ships' },
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bosporusStrait: { label: 'Bosphorus', lat: 41.1, lon: 29.1, note: 'Black Sea access' },
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panamaCanal: { label: 'Panama Canal', lat: 9.1, lon: -79.7, note: '5% of world trade' },
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capeOfGoodHope: { label: 'Cape of Good Hope', lat: -34.4, lon: 18.5, note: 'Suez alternative' },
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};
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// For non-realtime briefing, use web-searchable vessel data
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export async function briefing() {
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const hasKey = !!process.env.AISSTREAM_API_KEY;
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return {
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source: 'Maritime/AIS',
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timestamp: new Date().toISOString(),
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status: hasKey ? 'ready' : 'limited',
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message: hasKey
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? 'AIS stream connected — use WebSocket listener for real-time data'
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: 'Set AISSTREAM_API_KEY for real-time global vessel tracking (free at aisstream.io)',
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chokepoints: CHOKEPOINTS,
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monitoringCapabilities: [
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'Dark ship detection (AIS transponder shutoffs)',
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'Sanctions evasion (ship-to-ship transfers)',
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'Naval deployment tracking',
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'Port congestion (vessel dwell time)',
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'Chokepoint traffic anomalies',
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'Oil tanker route changes',
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],
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hint: 'For now, I can use web search to check maritime news and shipping disruptions',
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};
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}
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// WebSocket listener setup (for persistent monitoring)
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export function getWebSocketConfig(apiKey) {
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return {
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url: 'wss://stream.aisstream.io/v0/stream',
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message: JSON.stringify({
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APIKey: apiKey,
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BoundingBoxes: Object.values(CHOKEPOINTS).map(cp => [
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[cp.lat - 2, cp.lon - 2],
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[cp.lat + 2, cp.lon + 2],
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]),
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}),
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};
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}
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if (process.argv[1]?.endsWith('ships.mjs')) {
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const data = await briefing();
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console.log(JSON.stringify(data, null, 2));
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}
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