Partially working api and web

lib/gtfs.ts

@@ -0,0 +1,88 @@
+import * as fs from 'fs';
+import * as path from 'path';
+
+// Types
+export interface GtfsStop {
+  stop_id: string;
+  stop_code: string;
+  stop_name: string;
+  stop_lat: number;
+  stop_lon: number;
+}
+
+export interface GtfsRoute {
+  route_id: string;
+  route_short_name: string;
+  route_long_name: string;
+  route_type?: string;
+}
+
+// CSV Parser
+function parseCSVLine(line: string): string[] {
+  const result: string[] = [];
+  let current = '';
+  let inQuotes = false;
+  
+  for (let i = 0; i < line.length; i++) {
+    const char = line[i];
+    if (char === '"') {
+      inQuotes = !inQuotes;
+    } else if (char === ',' && !inQuotes) {
+      result.push(current.trim());
+      current = '';
+    } else {
+      current += char;
+    }
+  }
+  result.push(current.trim());
+  return result;
+}
+
+// Load GTFS Stops
+export function loadGtfsStops(gtfsDir: string = 'gtfs'): Map<string, GtfsStop> {
+  const stopsFile = path.join(process.cwd(), gtfsDir, 'stops.txt');
+  const content = fs.readFileSync(stopsFile, 'utf-8');
+  const lines = content.split('\n').filter(line => line.trim());
+  const stops = new Map<string, GtfsStop>();
+  
+  for (let i = 1; i < lines.length; i++) {
+    const values = parseCSVLine(lines[i]);
+    if (values.length < 6) continue;
+    
+    const stop: GtfsStop = {
+      stop_id: values[0],
+      stop_code: values[1],
+      stop_name: values[2],
+      stop_lat: parseFloat(values[4]),
+      stop_lon: parseFloat(values[5]),
+    };
+    
+    stops.set(stop.stop_id, stop);
+  }
+  
+  return stops;
+}
+
+// Load GTFS Routes
+export function loadGtfsRoutes(gtfsDir: string = 'gtfs'): Map<string, GtfsRoute> {
+  const routesFile = path.join(process.cwd(), gtfsDir, 'routes.txt');
+  const content = fs.readFileSync(routesFile, 'utf-8');
+  const lines = content.split('\n').filter(line => line.trim());
+  const routes = new Map<string, GtfsRoute>();
+  
+  for (let i = 1; i < lines.length; i++) {
+    const values = parseCSVLine(lines[i]);
+    if (values.length < 5) continue;
+    
+    const route: GtfsRoute = {
+      route_id: values[0],
+      route_short_name: values[2],
+      route_long_name: values[3],
+      route_type: values[5] || undefined,
+    };
+    
+    routes.set(route.route_id, route);
+  }
+  
+  return routes;
+}