add demo page
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Tykayn
tykayn
parent
fab0e979d5
commit
cc870323bf
6 changed files with 425 additions and 15 deletions
204
oedb/resources/demo.py
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204
oedb/resources/demo.py
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"""
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Demo resource for the OpenEventDatabase.
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"""
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import falcon
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from oedb.utils.logging import logger
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class DemoResource:
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"""
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Resource for the demo endpoint.
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Handles the /demo endpoint.
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"""
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def on_get(self, req, resp):
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"""
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Handle GET requests to the /demo endpoint.
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Returns an HTML page with a MapLibre map showing current events.
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Args:
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req: The request object.
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resp: The response object.
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"""
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logger.info("Processing GET request to /demo")
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try:
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# Set content type to HTML
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resp.content_type = 'text/html'
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# Create HTML response with MapLibre map
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html = """
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>OpenEventDatabase Demo</title>
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<script src="https://unpkg.com/maplibre-gl@3.0.0/dist/maplibre-gl.js"></script>
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<link href="https://unpkg.com/maplibre-gl@3.0.0/dist/maplibre-gl.css" rel="stylesheet" />
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<style>
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body { margin: 0; padding: 0; font-family: Arial, sans-serif; }
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#map { position: absolute; top: 0; bottom: 0; width: 100%; }
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.map-overlay {
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position: absolute;
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top: 10px;
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left: 10px;
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background: rgba(255, 255, 255, 0.9);
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padding: 10px;
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border-radius: 5px;
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box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
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max-width: 300px;
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}
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h2 { margin-top: 0; }
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ul { padding-left: 20px; }
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a { color: #0078ff; text-decoration: none; }
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a:hover { text-decoration: underline; }
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.event-popup { max-width: 300px; }
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</style>
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</head>
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<body>
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<div id="map"></div>
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<div class="map-overlay">
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<h2>OpenEventDatabase Demo</h2>
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<p>This map shows current events from the OpenEventDatabase.</p>
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<h3>API Endpoints:</h3>
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<ul>
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<li><a href="/" target="_blank">/ - API Information</a></li>
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<li><a href="/event" target="_blank">/event - Get Events</a></li>
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<li><a href="/stats" target="_blank">/stats - Database Statistics</a></li>
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</ul>
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<p><a href="https://source.cipherbliss.com/tykayn/oedb-backend" target="_blank">Source Code on GitHub</a></p>
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</div>
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<script>
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// Initialize the map
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const map = new maplibregl.Map({
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container: 'map',
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style: 'https://demotiles.maplibre.org/style.json',
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center: [2.3522, 48.8566], // Default center (Paris)
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zoom: 4
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});
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// Add navigation controls
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map.addControl(new maplibregl.NavigationControl());
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// Fetch events when the map is loaded
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map.on('load', function() {
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fetchEvents();
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});
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// Function to fetch events from the API
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function fetchEvents() {
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// Get current date in YYYY-MM-DD format
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const today = new Date().toISOString().split('T')[0];
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// Fetch events from the API
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fetch('/event?when=' + today)
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.then(response => response.json())
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.then(data => {
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if (data.features && data.features.length > 0) {
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// Add events to the map
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addEventsToMap(data);
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// Fit map to events bounds
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fitMapToBounds(data);
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} else {
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console.log('No events found');
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}
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})
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.catch(error => {
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console.error('Error fetching events:', error);
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});
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}
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// Function to add events to the map
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function addEventsToMap(geojson) {
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// Add a GeoJSON source for events
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map.addSource('events', {
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type: 'geojson',
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data: geojson
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});
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// Add a circle layer for events
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map.addLayer({
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id: 'events-circle',
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type: 'circle',
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source: 'events',
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paint: {
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'circle-radius': 8,
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'circle-color': '#FF5722',
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'circle-stroke-width': 2,
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'circle-stroke-color': '#FFFFFF'
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}
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});
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// Add popups for events
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geojson.features.forEach(feature => {
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const coordinates = feature.geometry.coordinates.slice();
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const properties = feature.properties;
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// Create popup content
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let popupContent = '<div class="event-popup">';
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popupContent += `<h3>${properties.label || 'Event'}</h3>`;
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popupContent += `<p><strong>Date:</strong> ${properties.when || 'Unknown'}</p>`;
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if (properties.what) {
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popupContent += `<p><strong>Type:</strong> ${properties.what}</p>`;
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}
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if (properties.source) {
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popupContent += `<p><a href="${properties.source}" target="_blank">More Information</a></p>`;
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}
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popupContent += '</div>';
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// Create popup
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const popup = new maplibregl.Popup({
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closeButton: true,
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closeOnClick: true
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}).setHTML(popupContent);
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// Add marker with popup
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new maplibregl.Marker({
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color: '#FF5722'
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})
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.setLngLat(coordinates)
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.setPopup(popup)
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.addTo(map);
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});
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}
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// Function to fit map to events bounds
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function fitMapToBounds(geojson) {
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if (geojson.features.length === 0) return;
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// Create a bounds object
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const bounds = new maplibregl.LngLatBounds();
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// Extend bounds with each feature
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geojson.features.forEach(feature => {
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bounds.extend(feature.geometry.coordinates);
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});
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// Fit map to bounds with padding
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map.fitBounds(bounds, {
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padding: 50,
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maxZoom: 12
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});
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}
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</script>
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</body>
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</html>
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"""
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# Set the response body and status
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resp.text = html
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resp.status = falcon.HTTP_200
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logger.success("Successfully processed GET request to /demo")
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except Exception as e:
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logger.error(f"Error processing GET request to /demo: {e}")
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resp.status = falcon.HTTP_500
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resp.text = f"Error: {str(e)}"
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# Create a global instance of DemoResource
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demo = DemoResource()
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@ -32,7 +32,8 @@ class RootResource:
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"/event": "Get events matching specified criteria",
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"/event/{id}": "Get a specific event by ID",
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"/event/search": "Search for events using a GeoJSON geometry",
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"/stats": "Get statistics about the database"
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"/stats": "Get statistics about the database",
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"/demo": "Interactive demo page with a map showing current events"
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}
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}
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