Files
The-transit-Project/transit_api/index.js
T
2026-05-05 17:39:02 +02:00

335 lines
9.1 KiB
JavaScript

const express = require('express');
const cors = require('cors');
require('dotenv').config();
const db = require('./db');
const { authMiddleware } = require('./middleware');
const app = express();
app.use(express.json());
app.use(cors());
// ============================================
// ROUTES - Get daily schedule
// ============================================
app.get('/schedule/daily', authMiddleware, async (req, res) => {
try {
const { date } = req.query;
const userId = req.user.userId;
if (!date) {
return res.status(400).json({ error: 'date query parameter required' });
}
const result = await db.query(`
SELECT
r.id,
r.start_time,
r.end_time,
r.status,
bl.id as line_id,
bl.line_number,
bl.start_stop,
bl.end_stop,
bl.estimated_duration_minutes,
bl.description,
bt.id as bus_type_id,
bt.name as bus_type,
bt.seat_capacity,
bt.license_plate
FROM routes r
JOIN bus_lines bl ON r.bus_line_id = bl.id
JOIN bus_types bt ON r.bus_type_id = bt.id
WHERE r.user_id = $1 AND DATE(r.start_time) = $2
ORDER BY r.start_time ASC
`, [userId, date]);
const routes = result.rows.map(row => ({
id: row.id,
startTime: row.start_time,
endTime: row.end_time,
status: row.status,
busLine: {
id: row.line_id,
lineNumber: row.line_number,
startStop: row.start_stop,
endStop: row.end_stop,
estimatedDuration: row.estimated_duration_minutes,
description: row.description,
},
busType: {
id: row.bus_type_id,
name: row.bus_type,
seatCapacity: row.seat_capacity,
licensePlate: row.license_plate,
},
}));
res.json({ date, routes });
} catch (err) {
console.error(err);
res.status(500).json({ error: 'internal_error', details: err.message });
}
});
// ============================================
// ROUTES - Get single route details
// ============================================
app.get('/routes/:routeId', authMiddleware, async (req, res) => {
try {
const { routeId } = req.params;
const userId = req.user.userId;
const result = await db.query(`
SELECT
r.id,
r.start_time,
r.end_time,
r.status,
bl.id as line_id,
bl.line_number,
bl.start_stop,
bl.end_stop,
bl.estimated_duration_minutes,
bl.description,
bt.id as bus_type_id,
bt.name as bus_type,
bt.seat_capacity,
bt.license_plate
FROM routes r
JOIN bus_lines bl ON r.bus_line_id = bl.id
JOIN bus_types bt ON r.bus_type_id = bt.id
WHERE r.id = $1 AND r.user_id = $2
`, [routeId, userId]);
if (result.rows.length === 0) {
return res.status(404).json({ error: 'route_not_found' });
}
const row = result.rows[0];
const route = {
id: row.id,
startTime: row.start_time,
endTime: row.end_time,
status: row.status,
busLine: {
id: row.line_id,
lineNumber: row.line_number,
startStop: row.start_stop,
endStop: row.end_stop,
estimatedDuration: row.estimated_duration_minutes,
description: row.description,
},
busType: {
id: row.bus_type_id,
name: row.bus_type,
seatCapacity: row.seat_capacity,
licensePlate: row.license_plate,
},
};
res.json({ route });
} catch (err) {
console.error(err);
res.status(500).json({ error: 'internal_error', details: err.message });
}
});
// ============================================
// ROUTES - Get stops for a bus line
// ============================================
app.get('/bus-lines/:busLineId/stops', authMiddleware, async (req, res) => {
try {
const { busLineId } = req.params;
const result = await db.query(`
SELECT
id,
stop_order,
stop_name,
latitude,
longitude,
estimated_arrival_minutes
FROM route_stops
WHERE bus_line_id = $1
ORDER BY stop_order ASC
`, [busLineId]);
const stops = result.rows.map(row => ({
id: row.id,
order: row.stop_order,
name: row.stop_name,
latitude: parseFloat(row.latitude),
longitude: parseFloat(row.longitude),
estimatedArrivalMinutes: row.estimated_arrival_minutes,
}));
res.json({ stops });
} catch (err) {
console.error(err);
res.status(500).json({ error: 'internal_error', details: err.message });
}
});
// ============================================
// NAVIGATION - Save calculated route
// ============================================
app.post('/navigation/route', authMiddleware, async (req, res) => {
try {
const {
routeId,
startLat,
startLon,
endLat,
endLon,
totalDistance,
totalDuration,
geojson,
} = req.body;
if (!routeId || !startLat || !startLon || !endLat || !endLon || !totalDistance || !totalDuration) {
return res.status(400).json({ error: 'missing_required_fields' });
}
const result = await db.query(`
INSERT INTO navigation_routes
(route_id, start_lat, start_lon, end_lat, end_lon,
total_distance_meters, total_duration_seconds, polyline_geojson)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
ON CONFLICT (route_id) DO UPDATE SET
start_lat = $2,
start_lon = $3,
end_lat = $4,
end_lon = $5,
total_distance_meters = $6,
total_duration_seconds = $7,
polyline_geojson = $8
RETURNING *
`, [
routeId,
startLat,
startLon,
endLat,
endLon,
totalDistance,
totalDuration,
JSON.stringify(geojson),
]);
res.json({ route: result.rows[0] });
} catch (err) {
console.error(err);
res.status(500).json({ error: 'internal_error', details: err.message });
}
});
// ============================================
// GPS TRACKING - Record current position
// ============================================
app.post('/gps/track', authMiddleware, async (req, res) => {
try {
const { routeId, latitude, longitude, speed, heading, accuracy } = req.body;
if (!routeId || !latitude || !longitude) {
return res.status(400).json({ error: 'missing_required_fields' });
}
await db.query(`
INSERT INTO gps_tracking
(route_id, latitude, longitude, speed_kmh, heading, accuracy, recorded_at)
VALUES ($1, $2, $3, $4, $5, $6, NOW())
`, [routeId, latitude, longitude, speed || null, heading || null, accuracy || null]);
res.json({ ok: true });
} catch (err) {
console.error(err);
res.status(500).json({ error: 'internal_error', details: err.message });
}
});
// ============================================
// GPS TRACKING - Get route history
// ============================================
app.get('/gps/route/:routeId', authMiddleware, async (req, res) => {
try {
const { routeId } = req.params;
const userId = req.user.userId;
// Verify user owns this route
const routeCheck = await db.query(
'SELECT id FROM routes WHERE id = $1 AND user_id = $2',
[routeId, userId]
);
if (routeCheck.rows.length === 0) {
return res.status(403).json({ error: 'unauthorized' });
}
const result = await db.query(`
SELECT
id,
latitude,
longitude,
speed_kmh,
heading,
accuracy,
recorded_at
FROM gps_tracking
WHERE route_id = $1
ORDER BY recorded_at ASC
`, [routeId]);
const positions = result.rows.map(row => ({
id: row.id,
latitude: parseFloat(row.latitude),
longitude: parseFloat(row.longitude),
speed: row.speed_kmh,
heading: row.heading,
accuracy: row.accuracy,
recordedAt: row.recorded_at,
}));
res.json({ positions });
} catch (err) {
console.error(err);
res.status(500).json({ error: 'internal_error', details: err.message });
}
});
// ============================================
// ROUTES - Update route status
// ============================================
app.patch('/routes/:routeId/status', authMiddleware, async (req, res) => {
try {
const { routeId } = req.params;
const { status } = req.body;
const userId = req.user.userId;
const validStatuses = ['scheduled', 'in_progress', 'completed', 'cancelled'];
if (!validStatuses.includes(status)) {
return res.status(400).json({ error: 'invalid_status' });
}
const result = await db.query(`
UPDATE transit.routes
SET status = $1, updated_at = NOW()
WHERE id = $2 AND user_id = $3
RETURNING *
`, [status, routeId, userId]);
if (result.rows.length === 0) {
return res.status(404).json({ error: 'route_not_found' });
}
res.json({ route: result.rows[0] });
} catch (err) {
console.error(err);
res.status(500).json({ error: 'internal_error', details: err.message });
}
});
const PORT = process.env.PORT || 5001;
app.listen(PORT, () => console.log(`Transit API listening on ${PORT}`));
module.exports = app;