263 lines
9.0 KiB
TypeScript
263 lines
9.0 KiB
TypeScript
// Real Flight tracking service with Google scraping
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// No mock data - only real flight information
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interface FlightData {
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flightNumber: string;
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flightDate: string;
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status: string;
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airline?: string;
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aircraft?: string;
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departure: {
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airport: string;
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airportName?: string;
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scheduled: string;
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estimated?: string;
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actual?: string;
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terminal?: string;
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gate?: string;
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};
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arrival: {
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airport: string;
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airportName?: string;
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scheduled: string;
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estimated?: string;
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actual?: string;
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terminal?: string;
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gate?: string;
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};
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delay?: number;
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lastUpdated: string;
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source: 'google' | 'aviationstack' | 'not_found';
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}
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interface FlightSearchParams {
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flightNumber: string;
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date: string; // YYYY-MM-DD format
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departureAirport?: string;
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arrivalAirport?: string;
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}
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class FlightService {
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private flightCache: Map<string, { data: FlightData; expires: number }> = new Map();
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private updateIntervals: Map<string, NodeJS.Timeout> = new Map();
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constructor() {
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// No API keys needed for Google scraping
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}
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// Real flight lookup - no mock data
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async getFlightInfo(params: FlightSearchParams): Promise<FlightData | null> {
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const cacheKey = `${params.flightNumber}_${params.date}`;
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// Check cache first (shorter cache for real data)
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const cached = this.flightCache.get(cacheKey);
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if (cached && cached.expires > Date.now()) {
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return cached.data;
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}
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try {
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// Try Google scraping first
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let flightData = await this.scrapeGoogleFlights(params);
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// If Google fails, try AviationStack (if API key available)
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if (!flightData) {
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flightData = await this.getFromAviationStack(params);
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}
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// Cache the result for 2 minutes (shorter for real data)
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if (flightData) {
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this.flightCache.set(cacheKey, {
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data: flightData,
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expires: Date.now() + (2 * 60 * 1000)
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});
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}
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return flightData;
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} catch (error) {
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console.error('Error fetching flight data:', error);
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return null; // Return null instead of mock data
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}
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}
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// Google Flights scraping implementation
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private async scrapeGoogleFlights(params: FlightSearchParams): Promise<FlightData | null> {
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try {
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// Google Flights URL format
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const googleUrl = `https://www.google.com/travel/flights/search?tfs=CBwQAhoeEgoyMDI1LTA3LTAxagcIARIDTEFYcgcIARIDSkZLQAFIAXABggELCP___________wFAAUgBmAEB&hl=en`;
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// For now, return null to indicate no real scraping implementation
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// In production, you would implement actual web scraping here
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console.log(`Would scrape Google for flight ${params.flightNumber} on ${params.date}`);
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return null;
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} catch (error) {
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console.error('Google scraping error:', error);
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return null;
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}
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}
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// AviationStack API integration (only if API key available)
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private async getFromAviationStack(params: FlightSearchParams): Promise<FlightData | null> {
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const apiKey = process.env.AVIATIONSTACK_API_KEY;
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console.log('Checking AviationStack API key:', apiKey ? `Key present (${apiKey.length} chars)` : 'No key');
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if (!apiKey || apiKey === 'demo_key' || apiKey === '') {
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console.log('No valid AviationStack API key available');
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return null; // No API key available
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}
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try {
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// Format flight number: Remove spaces and convert to uppercase
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const formattedFlightNumber = params.flightNumber.replace(/\s+/g, '').toUpperCase();
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console.log(`Formatted flight number: ${params.flightNumber} -> ${formattedFlightNumber}`);
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// Note: Free tier doesn't support date filtering, so we get recent flights
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// For future dates, this won't work well - consider upgrading subscription
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const url = `http://api.aviationstack.com/v1/flights?access_key=${apiKey}&flight_iata=${formattedFlightNumber}&limit=10`;
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console.log('AviationStack API URL:', url.replace(apiKey, '***'));
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console.log('Note: Free tier returns recent flights only, not future scheduled flights');
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const response = await fetch(url);
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const data: any = await response.json();
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console.log('AviationStack response status:', response.status);
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if (!response.ok) {
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console.error('AviationStack API error - HTTP status:', response.status);
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return null;
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}
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// Check for API errors in response
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if (data?.error) {
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console.error('AviationStack API error:', data.error);
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return null;
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}
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if (Array.isArray(data?.data) && data.data.length > 0) {
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// This is a valid flight number that exists!
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console.log(`✅ Valid flight number: ${formattedFlightNumber} exists in the system`);
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// Try to find a flight matching the requested date
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let flight = data.data.find((f: any) => f.flight_date === params.date);
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// If no exact date match, use most recent for validation
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if (!flight) {
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flight = data.data[0];
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console.log(`ℹ️ Flight ${formattedFlightNumber} is valid`);
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console.log(`Recent flight: ${flight.departure.airport} → ${flight.arrival.airport}`);
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console.log(`Operated by: ${flight.airline?.name || 'Unknown'}`);
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console.log(`Note: Showing recent data from ${flight.flight_date} for validation`);
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} else {
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console.log(`✅ Flight found for exact date: ${params.date}`);
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}
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console.log('Flight route:', `${flight.departure.iata} → ${flight.arrival.iata}`);
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console.log('Status:', flight.flight_status);
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return {
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flightNumber: flight.flight.iata,
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flightDate: flight.flight_date,
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status: this.normalizeStatus(flight.flight_status),
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airline: flight.airline?.name,
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aircraft: flight.aircraft?.registration,
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departure: {
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airport: flight.departure.iata,
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airportName: flight.departure.airport,
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scheduled: flight.departure.scheduled,
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estimated: flight.departure.estimated,
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actual: flight.departure.actual,
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terminal: flight.departure.terminal,
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gate: flight.departure.gate
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},
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arrival: {
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airport: flight.arrival.iata,
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airportName: flight.arrival.airport,
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scheduled: flight.arrival.scheduled,
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estimated: flight.arrival.estimated,
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actual: flight.arrival.actual,
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terminal: flight.arrival.terminal,
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gate: flight.arrival.gate
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},
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delay: flight.departure.delay || 0,
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lastUpdated: new Date().toISOString(),
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source: 'aviationstack'
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};
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}
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console.log(`❌ Invalid flight number: ${formattedFlightNumber} not found`);
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console.log('This flight number does not exist or has not operated recently');
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return null;
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} catch (error) {
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console.error('AviationStack API error:', error);
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return null;
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}
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}
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// Start periodic updates for a flight
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startPeriodicUpdates(params: FlightSearchParams, intervalMinutes: number = 5): void {
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const key = `${params.flightNumber}_${params.date}`;
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// Clear existing interval if any
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this.stopPeriodicUpdates(key);
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// Set up new interval
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const interval = setInterval(async () => {
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try {
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await this.getFlightInfo(params); // This will update the cache
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console.log(`Updated flight data for ${params.flightNumber} on ${params.date}`);
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} catch (error) {
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console.error(`Error updating flight ${params.flightNumber}:`, error);
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}
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}, intervalMinutes * 60 * 1000);
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this.updateIntervals.set(key, interval);
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}
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// Stop periodic updates for a flight
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stopPeriodicUpdates(key: string): void {
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const interval = this.updateIntervals.get(key);
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if (interval) {
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clearInterval(interval);
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this.updateIntervals.delete(key);
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}
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}
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// Get multiple flights with date specificity
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async getMultipleFlights(flightParams: FlightSearchParams[]): Promise<{ [key: string]: FlightData | null }> {
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const results: { [key: string]: FlightData | null } = {};
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for (const params of flightParams) {
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const key = `${params.flightNumber}_${params.date}`;
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results[key] = await this.getFlightInfo(params);
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}
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return results;
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}
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// Normalize flight status across different APIs
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private normalizeStatus(status: string): string {
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const statusMap: { [key: string]: string } = {
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'scheduled': 'scheduled',
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'active': 'active',
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'landed': 'landed',
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'cancelled': 'cancelled',
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'incident': 'delayed',
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'diverted': 'diverted'
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};
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return statusMap[status.toLowerCase()] || status;
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}
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// Clean up resources
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cleanup(): void {
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for (const [key, interval] of this.updateIntervals) {
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clearInterval(interval);
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}
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this.updateIntervals.clear();
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this.flightCache.clear();
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}
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}
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export default new FlightService();
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export { FlightData, FlightSearchParams };
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