oedb-backend/oedb/resources/demo.py
2025-09-18 19:27:28 +02:00

1541 lines
No EOL
72 KiB
Python

"""
Demo resource for the OpenEventDatabase.
"""
import falcon
import requests
import json
from collections import defaultdict
from oedb.utils.logging import logger
class DemoResource:
"""
Resource for the demo endpoint.
Handles the /demo endpoint and related demo pages.
"""
def on_get_edit(self, req, resp, id=None):
"""
Handle GET requests to the /demo/edit endpoint.
Returns an HTML page with a form for editing an existing event.
Args:
req: The request object.
resp: The response object.
id: The event ID to edit.
"""
logger.info(f"Processing GET request to /demo/edit for event ID: {id}")
if id is None:
resp.status = falcon.HTTP_400
resp.text = "Event ID is required"
return
try:
# Set content type to HTML
resp.content_type = 'text/html'
# Fetch the event data from the API
response = requests.get(f'http://localhost/event/{id}')
if response.status_code != 200:
resp.status = falcon.HTTP_404
resp.text = f"Event with ID {id} not found"
return
event_data = response.json()
# Create HTML response with form
html = f"""
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Edit Event - OpenEventDatabase</title>
<script src="https://unpkg.com/maplibre-gl@3.0.0/dist/maplibre-gl.js"></script>
<link href="https://unpkg.com/maplibre-gl@3.0.0/dist/maplibre-gl.css" rel="stylesheet" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.4/css/bulma.min.css">
<style>
body {{
margin: 0;
padding: 20px;
font-family: Arial, sans-serif;
background-color: #f5f5f5;
}}
.container {{
max-width: 1000px;
margin: 0 auto;
background-color: white;
padding: 20px;
border-radius: 5px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}}
h1 {{
margin-top: 0;
color: #333;
}}
.form-group {{
margin-bottom: 15px;
}}
label {{
display: block;
margin-bottom: 5px;
font-weight: bold;
}}
input[type="text"],
input[type="datetime-local"],
select,
textarea {{
width: 100%;
padding: 8px;
border: 1px solid #ddd;
border-radius: 4px;
box-sizing: border-box;
font-size: 14px;
}}
.required:after {{
content: " *";
color: red;
}}
.form-row {{
display: flex;
gap: 15px;
}}
.form-row .form-group {{
flex: 1;
}}
button {{
background-color: #0078ff;
color: white;
border: none;
padding: 10px 15px;
border-radius: 4px;
cursor: pointer;
font-size: 16px;
}}
button:hover {{
background-color: #0056b3;
}}
.note {{
font-size: 12px;
color: #666;
margin-top: 5px;
}}
#map {{
width: 100%;
height: 300px;
margin-bottom: 15px;
border-radius: 4px;
}}
#result {{
margin-top: 20px;
padding: 10px;
border-radius: 4px;
display: none;
}}
#result.success {{
background-color: #d4edda;
border: 1px solid #c3e6cb;
color: #155724;
}}
#result.error {{
background-color: #f8d7da;
border: 1px solid #f5c6cb;
color: #721c24;
}}
.nav-links {{
margin-bottom: 20px;
}}
.nav-links a {{
color: #0078ff;
text-decoration: none;
margin-right: 15px;
}}
.nav-links a:hover {{
text-decoration: underline;
}}
</style>
</head>
<body>
<div class="container">
<div class="nav-links">
<a href="/demo">&larr; Back to Map</a>
<a href="/">API Information</a>
<a href="/event">View Events</a>
<a href="https://source.cipherbliss.com/tykayn/oedb-backend" target="_blank" title="View Source Code on Cipherbliss">
<i class="fas fa-code-branch"></i> Source
</a>
</div>
<h1>Edit Event</h1>
<form id="eventForm">
<input type="hidden" id="eventId" value="{id}">
<div class="form-group">
<label for="label" class="required">Event Name</label>
<input type="text" id="label" name="label" required>
</div>
<div class="form-row">
<div class="form-group">
<label for="type" class="required">Event Type</label>
<select id="type" name="type" required>
<option value="scheduled">Scheduled</option>
<option value="forecast">Forecast</option>
<option value="unscheduled">Unscheduled</option>
</select>
</div>
<div class="form-group">
<label for="what" class="required">What</label>
<input type="text" id="what" name="what" placeholder="e.g., sport.match.football" required>
<div class="note">Category of the event (e.g., sport.match.football, culture.festival)</div>
</div>
</div>
<div class="form-row">
<div class="form-group">
<label for="what_series">What: Series</label>
<input type="text" id="what_series" name="what_series" placeholder="e.g., Euro 2024">
<div class="note">Series or group the event belongs to (e.g., Euro 2024, Summer Festival 2023)</div>
</div>
<div class="form-group">
<label for="where">Where</label>
<input type="text" id="where" name="where" placeholder="e.g., Stadium Name">
<div class="note">Specific location name (e.g., Eiffel Tower, Wembley Stadium)</div>
</div>
</div>
<div class="form-row">
<div class="form-group">
<label for="start" class="required">Start Time</label>
<input type="datetime-local" id="start" name="start" required value="">
</div>
<div class="form-group">
<label for="stop" class="required">End Time</label>
<input type="datetime-local" id="stop" name="stop" required value="">
</div>
</div>
<div class="form-group">
<label class="required">Location</label>
<div id="map"></div>
<div class="note">Click on the map to set the event location</div>
</div>
<button type="submit">Update Event</button>
</form>
<div id="result"></div>
</div>
<script>
// Initialize the map
const map = new maplibregl.Map({{
container: 'map',
style: 'https://demotiles.maplibre.org/style.json',
center: [2.2137, 46.2276], // Default center (center of metropolitan France)
zoom: 5
}});
// Add navigation controls
map.addControl(new maplibregl.NavigationControl());
// Add attribution control with OpenStreetMap attribution
map.addControl(new maplibregl.AttributionControl({{
customAttribution: '© <a href="https://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors'
}}));
// Add marker for event location
let marker = new maplibregl.Marker({{
draggable: true
}});
// Event data from API
const eventData = {event_data};
// Function to populate form with event data
function populateForm() {{
if (!eventData || !eventData.properties) {{
showResult('Error loading event data', 'error');
return;
}}
const properties = eventData.properties;
// Set form values
document.getElementById('label').value = properties.label || '';
document.getElementById('type').value = properties.type || 'scheduled';
document.getElementById('what').value = properties.what || '';
// Handle optional fields
if (properties['what:series']) {{
document.getElementById('what_series').value = properties['what:series'];
}}
if (properties.where) {{
document.getElementById('where').value = properties.where;
}}
// Format dates for datetime-local input
if (properties.start) {{
const startDate = new Date(properties.start);
document.getElementById('start').value = startDate.toISOString().slice(0, 16);
}}
if (properties.stop) {{
const stopDate = new Date(properties.stop);
document.getElementById('stop').value = stopDate.toISOString().slice(0, 16);
}}
// Set marker on map
if (eventData.geometry && eventData.geometry.coordinates) {{
const coords = eventData.geometry.coordinates;
marker.setLngLat(coords).addTo(map);
// Center map on event location
map.flyTo({{
center: coords,
zoom: 10
}});
}}
}}
// Call function to populate form
populateForm();
// Add marker on map click
map.on('click', function(e) {{
marker.setLngLat(e.lngLat).addTo(map);
}});
// Function to show result message
function showResult(message, type) {{
const resultElement = document.getElementById('result');
resultElement.textContent = message;
resultElement.className = type;
resultElement.style.display = 'block';
// Scroll to result
resultElement.scrollIntoView({{ behavior: 'smooth' }});
}}
// Handle form submission
document.getElementById('eventForm').addEventListener('submit', function(e) {{
e.preventDefault();
// Get event ID
const eventId = document.getElementById('eventId').value;
// Get form values
const label = document.getElementById('label').value;
const type = document.getElementById('type').value;
const what = document.getElementById('what').value;
const what_series = document.getElementById('what_series').value;
const where = document.getElementById('where').value;
const start = document.getElementById('start').value;
const stop = document.getElementById('stop').value;
// Check if marker is set
if (!marker.getLngLat()) {{
showResult('Please set a location by clicking on the map', 'error');
return;
}}
// Get marker coordinates
const lngLat = marker.getLngLat();
// Create event object
const event = {{
type: 'Feature',
geometry: {{
type: 'Point',
coordinates: [lngLat.lng, lngLat.lat]
}},
properties: {{
label: label,
type: type,
what: what,
start: start,
stop: stop
}}
}};
// Add optional properties if provided
if (what_series) {{
event.properties['what:series'] = what_series;
}}
if (where) {{
event.properties.where = where;
}}
// Submit event to API
fetch(`/event/${{eventId}}`, {{
method: 'PUT',
headers: {{
'Content-Type': 'application/json'
}},
body: JSON.stringify(event)
}})
.then(response => {{
if (response.ok) {{
return response.json();
}} else {{
return response.text().then(text => {{
throw new Error(text || response.statusText);
}});
}}
}})
.then(data => {{
showResult(`Event updated successfully with ID: ${{data.id}}`, 'success');
// Add link to view the event
const resultElement = document.getElementById('result');
resultElement.innerHTML += `<p><a href="/event/${{data.id}}" target="_blank">View Event</a> | <a href="/demo">Back to Map</a></p>`;
}})
.catch(error => {{
showResult(`Error: ${{error.message}}`, 'error');
}});
}});
</script>
</body>
</html>
"""
# Set the response body and status
resp.text = html.replace('{event_data}', json.dumps(event_data))
resp.status = falcon.HTTP_200
logger.success(f"Successfully processed GET request to /demo/edit for event ID: {id}")
except Exception as e:
logger.error(f"Error processing GET request to /demo/edit: {e}")
resp.status = falcon.HTTP_500
resp.text = f"Error: {str(e)}"
def on_get(self, req, resp):
"""
Handle GET requests to the /demo endpoint.
Returns an HTML page with a MapLibre map showing current events.
Args:
req: The request object.
resp: The response object.
"""
logger.info("Processing GET request to /demo")
try:
# Set content type to HTML
resp.content_type = 'text/html'
# Create HTML response with MapLibre map
html = """
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>OpenEventDatabase Demo</title>
<script src="https://unpkg.com/maplibre-gl@3.0.0/dist/maplibre-gl.js"></script>
<link href="https://unpkg.com/maplibre-gl@3.0.0/dist/maplibre-gl.css" rel="stylesheet" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.9.4/css/bulma.min.css">
<script defer src="https://use.fontawesome.com/releases/v5.15.4/js/all.js"></script>
<style>
body { margin: 0; padding: 0; font-family: Arial, sans-serif; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
.map-overlay {
position: absolute;
top: 10px;
left: 10px;
background: rgba(255, 255, 255, 0.9);
padding: 10px;
border-radius: 5px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
max-width: 300px;
}
.map-style-control {
position: absolute;
top: 10px;
right: 10px;
background: rgba(255, 255, 255, 0.9);
padding: 10px;
border-radius: 5px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
z-index: 1;
}
.map-style-control button {
display: block;
margin-bottom: 5px;
padding: 5px 10px;
background: #fff;
border: 1px solid #ddd;
border-radius: 3px;
cursor: pointer;
width: 100%;
text-align: left;
}
.map-style-control button:hover {
background: #f5f5f5;
}
.map-style-control button.active {
background: #0078ff;
color: white;
border-color: #0056b3;
}
h2 { margin-top: 0; }
ul { padding-left: 20px; }
a { color: #0078ff; text-decoration: none; }
a:hover { text-decoration: underline; }
.event-popup { max-width: 300px; }
</style>
</head>
<body>
<div id="map"></div>
<div class="map-overlay">
<h2>OpenEventDatabase Demo</h2>
<p>This map shows current events from the OpenEventDatabase.</p>
<h3>API Endpoints:</h3>
<ul>
<li><a href="/" target="_blank">/ - API Information</a></li>
<li><a href="/event" target="_blank">/event - Get Events</a></li>
<li><a href="/stats" target="_blank">/stats - Database Statistics</a></li>
</ul>
<h3>Demo Pages:</h3>
<ul>
<li><a href="/demo/by-what" target="_blank">/demo/by-what - Events by Type</a></li>
<li><a href="/demo/map-by-what" target="_blank">/demo/map-by-what - Map by Event Type</a></li>
<li><a href="/event?what=music" target="_blank">Search Music Events</a></li>
<li><a href="/event?what=sport" target="_blank">Search Sport Events</a></li>
</ul>
<p><a href="/demo/add" class="add-event-btn" style="display: block; text-align: center; margin-top: 15px; padding: 8px; background-color: #0078ff; color: white; border-radius: 4px; font-weight: bold;">+ Add New Event</a></p>
<p style="text-align: center; margin-top: 10px;">
<a href="https://source.cipherbliss.com/tykayn/oedb-backend" target="_blank" title="View Source Code on Cipherbliss" style="font-size: 24px;">
<i class="fas fa-code-branch"></i>
</a>
</p>
</div>
<div class="map-style-control">
<h4 style="margin-top: 0; margin-bottom: 10px;">Map Style</h4>
<button id="style-default" class="active">Default</button>
<button id="style-osm-vector">OSM Vector</button>
<button id="style-osm-raster">OSM Raster</button>
</div>
<script>
// Map style URLs
const mapStyles = {
default: 'https://demotiles.maplibre.org/style.json',
osmVector: 'https://cdn.jsdelivr.net/gh/openmaptiles/osm-bright-gl-style@master/style-cdn.json',
osmRaster: {
version: 8,
sources: {
'osm-raster': {
type: 'raster',
tiles: [
'https://tile.openstreetmap.org/{z}/{x}/{y}.png'
],
tileSize: 256,
attribution: '© <a href="https://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors'
}
},
layers: [
{
id: 'osm-raster-layer',
type: 'raster',
source: 'osm-raster',
minzoom: 0,
maxzoom: 19
}
]
}
};
// Initialize the map with default style
const map = new maplibregl.Map({
container: 'map',
style: mapStyles.default,
center: [2.3522, 48.8566], // Default center (Paris)
zoom: 4
});
// Add navigation controls
map.addControl(new maplibregl.NavigationControl());
// Add attribution control with OpenStreetMap attribution
map.addControl(new maplibregl.AttributionControl({
customAttribution: '© <a href="https://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors'
}));
// Style switcher functionality
let currentStyle = 'default';
let eventsData = null;
document.getElementById('style-default').addEventListener('click', () => {
if (currentStyle !== 'default') {
switchMapStyle('default');
}
});
document.getElementById('style-osm-vector').addEventListener('click', () => {
if (currentStyle !== 'osmVector') {
switchMapStyle('osmVector');
}
});
document.getElementById('style-osm-raster').addEventListener('click', () => {
if (currentStyle !== 'osmRaster') {
switchMapStyle('osmRaster');
}
});
function switchMapStyle(styleName) {
// Update active button
document.querySelectorAll('.map-style-control button').forEach(button => {
button.classList.remove('active');
});
document.getElementById(`style-${styleName.replace('osm', 'osm-')}`).classList.add('active');
// Save current center and zoom
const center = map.getCenter();
const zoom = map.getZoom();
// Save events data if already loaded
if (map.getSource('events')) {
try {
eventsData = map.getSource('events')._data;
} catch (e) {
console.error('Error saving events data:', e);
}
}
// Apply new style
map.setStyle(mapStyles[styleName]);
// Restore center and zoom after style is loaded
map.once('style.load', () => {
map.setCenter(center);
map.setZoom(zoom);
// Restore events data if available
if (eventsData) {
addEventsToMap(eventsData);
} else {
fetchEvents();
}
});
currentStyle = styleName;
}
// Fetch events when the map is loaded
map.on('load', function() {
fetchEvents();
});
// Function to fetch events from the API
function fetchEvents() {
// Fetch events from the API - using default behavior to get currently active events
fetch('/event')
.then(response => response.json())
.then(data => {
if (data.features && data.features.length > 0) {
// Add events to the map
addEventsToMap(data);
// Fit map to events bounds
fitMapToBounds(data);
} else {
console.log('No events found');
}
})
.catch(error => {
console.error('Error fetching events:', error);
});
}
// Function to add events to the map
function addEventsToMap(geojson) {
// Add a GeoJSON source for events
map.addSource('events', {
type: 'geojson',
data: geojson
});
// Add a circle layer for events
map.addLayer({
id: 'events-circle',
type: 'circle',
source: 'events',
paint: {
'circle-radius': 8,
'circle-color': '#FF5722',
'circle-stroke-width': 2,
'circle-stroke-color': '#FFFFFF'
}
});
// Add popups for events
geojson.features.forEach(feature => {
const coordinates = feature.geometry.coordinates.slice();
const properties = feature.properties;
// Create popup content
let popupContent = '<div class="event-popup">';
popupContent += `<h3>${properties.label || 'Event'}</h3>`;
// Display all properties
popupContent += '<div style="max-height: 300px; overflow-y: auto;">';
popupContent += '<table style="width: 100%; border-collapse: collapse;">';
// Sort properties alphabetically for better organization
const sortedKeys = Object.keys(properties).sort();
for (const key of sortedKeys) {
// Skip the label as it's already displayed as the title
if (key === 'label') continue;
const value = properties[key];
let displayValue;
// Format the value based on its type
if (value === null || value === undefined) {
displayValue = '<em>null</em>';
} else if (typeof value === 'object') {
displayValue = `<pre style="margin: 0; white-space: pre-wrap;">${JSON.stringify(value, null, 2)}</pre>`;
} else if (typeof value === 'string' && value.startsWith('http')) {
displayValue = `<a href="${value}" target="_blank">${value}</a>`;
} else {
displayValue = String(value);
}
popupContent += `
<tr style="border-bottom: 1px solid #eee;">
<td style="padding: 4px; font-weight: bold; vertical-align: top;">${key}:</td>
<td style="padding: 4px;">${displayValue}</td>
</tr>`;
}
popupContent += '</table>';
popupContent += '</div>';
// Add edit link
popupContent += `<div style="margin-top: 10px; text-align: center;">
<a href="/demo/edit/${properties.id}" class="edit-event-btn" style="display: inline-block; padding: 5px 10px; background-color: #0078ff; color: white; border-radius: 4px; text-decoration: none; font-weight: bold;">Edit Event</a>
</div>`;
popupContent += '</div>';
// Create popup
const popup = new maplibregl.Popup({
closeButton: true,
closeOnClick: true
}).setHTML(popupContent);
// Get event type for icon selection
const eventType = properties.what || 'unknown';
// Define icon based on event type
let iconClass = 'info-circle'; // Default icon
let iconColor = '#0078ff'; // Default color
// Map event types to icons
if (eventType.startsWith('weather')) {
iconClass = 'cloud';
iconColor = '#00d1b2'; // Teal
} else if (eventType.startsWith('traffic')) {
iconClass = 'car';
iconColor = '#ff3860'; // Red
} else if (eventType.startsWith('sport')) {
iconClass = 'futbol';
iconColor = '#3273dc'; // Blue
} else if (eventType.startsWith('culture')) {
iconClass = 'theater-masks';
iconColor = '#ffdd57'; // Yellow
} else if (eventType.startsWith('health')) {
iconClass = 'heartbeat';
iconColor = '#ff3860'; // Red
} else if (eventType.startsWith('education')) {
iconClass = 'graduation-cap';
iconColor = '#3273dc'; // Blue
} else if (eventType.startsWith('politics')) {
iconClass = 'landmark';
iconColor = '#209cee'; // Light blue
} else if (eventType.startsWith('nature')) {
iconClass = 'leaf';
iconColor = '#23d160'; // Green
}
// Create custom HTML element for marker
const el = document.createElement('div');
el.className = 'marker';
el.innerHTML = `<span class="icon" style="background-color: white; border-radius: 50%; padding: 8px; box-shadow: 0 0 5px rgba(0,0,0,0.3);">
<i class="fas fa-${iconClass}" style="color: ${iconColor}; font-size: 16px;"></i>
</span>`;
// Add marker with popup
new maplibregl.Marker(el)
.setLngLat(coordinates)
.setPopup(popup)
.addTo(map);
});
}
// Function to fit map to events bounds
function fitMapToBounds(geojson) {
if (geojson.features.length === 0) return;
// Create a bounds object
const bounds = new maplibregl.LngLatBounds();
// Extend bounds with each feature
geojson.features.forEach(feature => {
bounds.extend(feature.geometry.coordinates);
});
// Fit map to bounds with padding
map.fitBounds(bounds, {
padding: 50,
maxZoom: 12
});
}
</script>
</body>
</html>
"""
# Set the response body and status
resp.text = html
resp.status = falcon.HTTP_200
logger.success("Successfully processed GET request to /demo")
except Exception as e:
logger.error(f"Error processing GET request to /demo: {e}")
resp.status = falcon.HTTP_500
resp.text = f"Error: {str(e)}"
def on_get_by_what(self, req, resp):
"""
Handle GET requests to the /demo/by-what endpoint.
Returns an HTML page with links to events organized by their "what" type.
Args:
req: The request object.
resp: The response object.
"""
logger.info("Processing GET request to /demo/by-what")
try:
# Set content type to HTML
resp.content_type = 'text/html'
# Fetch events from the API
try:
response = requests.get('/event?limit=1000')
if response.status_code == 200 and response.text:
events_data = response.json()
else:
logger.error(f"Error fetching events: Status code {response.status_code}, Response: {response.text}")
events_data = {"features": []}
except json.JSONDecodeError as e:
logger.error(f"Error parsing JSON response: {e}")
events_data = {"features": []}
except Exception as e:
logger.error(f"Error fetching events: {e}")
events_data = {"features": []}
# Group events by "what" type
events_by_what = defaultdict(list)
if events_data.get('features'):
for feature in events_data['features']:
properties = feature.get('properties', {})
what = properties.get('what', 'Unknown')
events_by_what[what].append({
'id': properties.get('id'),
'label': properties.get('label', 'Unnamed Event'),
'coordinates': feature.get('geometry', {}).get('coordinates', [0, 0])
})
# Create HTML response
html = """
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Events by Type - OpenEventDatabase</title>
<style>
body {
font-family: Arial, sans-serif;
line-height: 1.6;
max-width: 1200px;
margin: 0 auto;
padding: 20px;
}
h1 { color: #333; }
h2 {
color: #0078ff;
margin-top: 30px;
padding-bottom: 5px;
border-bottom: 1px solid #eee;
}
ul { padding-left: 20px; }
li { margin-bottom: 8px; }
a { color: #0078ff; text-decoration: none; }
a:hover { text-decoration: underline; }
.nav {
background-color: #f5f5f5;
padding: 10px;
border-radius: 5px;
margin-bottom: 20px;
}
.nav a {
margin-right: 15px;
}
.event-count {
color: #666;
font-size: 0.9em;
}
</style>
</head>
<body>
<div class="nav">
<a href="/">Home</a>
<a href="/demo">Demo Map</a>
<a href="/demo/map-by-what">Map by Event Type</a>
</div>
<h1>Events by Type</h1>
<p>This page lists all events from the OpenEventDatabase organized by their type.</p>
"""
# Add event types and their events
if events_by_what:
# Sort event types alphabetically
sorted_what_types = sorted(events_by_what.keys())
# Add quick navigation
html += "<h2>Quick Navigation</h2><ul>"
for what_type in sorted_what_types:
event_count = len(events_by_what[what_type])
html += f'<li><a href="#what-{what_type.replace(" ", "-")}">{what_type}</a> <span class="event-count">({event_count} events)</span></li>'
html += "</ul>"
# Add sections for each event type
for what_type in sorted_what_types:
events = events_by_what[what_type]
html += f'<h2 id="what-{what_type.replace(" ", "-")}">{what_type} <span class="event-count">({len(events)} events)</span></h2>'
html += "<ul>"
# Sort events by label
sorted_events = sorted(events, key=lambda x: x.get('label', ''))
for event in sorted_events:
event_id = event.get('id')
event_label = event.get('label', 'Unnamed Event')
coordinates = event.get('coordinates', [0, 0])
html += f'<li><a href="/event/{event_id}" target="_blank">{event_label}</a> '
html += f'<small>[<a href="https://www.openstreetmap.org/?mlat={coordinates[1]}&mlon={coordinates[0]}&zoom=15" target="_blank">map</a>]</small></li>'
html += "</ul>"
else:
html += "<p>No events found in the database.</p>"
html += """
</body>
</html>
"""
# Set the response body and status
resp.text = html
resp.status = falcon.HTTP_200
logger.success("Successfully processed GET request to /demo/by-what")
except Exception as e:
logger.error(f"Error processing GET request to /demo/by-what: {e}")
resp.status = falcon.HTTP_500
resp.text = f"Error: {str(e)}"
def on_get_map_by_what(self, req, resp):
"""
Handle GET requests to the /demo/map-by-what endpoint.
Returns an HTML page with a MapLibre map showing events filtered by "what" type.
Args:
req: The request object.
resp: The response object.
"""
logger.info("Processing GET request to /demo/map-by-what")
try:
# Set content type to HTML
resp.content_type = 'text/html'
# Create HTML response with MapLibre map and filtering controls
html = """
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Map by Event Type - OpenEventDatabase</title>
<script src="https://unpkg.com/maplibre-gl@3.0.0/dist/maplibre-gl.js"></script>
<link href="https://unpkg.com/maplibre-gl@3.0.0/dist/maplibre-gl.css" rel="stylesheet" />
<style>
body { margin: 0; padding: 0; font-family: Arial, sans-serif; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
.map-overlay {
position: absolute;
top: 10px;
left: 10px;
background: rgba(255, 255, 255, 0.9);
padding: 10px;
border-radius: 5px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
max-width: 300px;
max-height: 90vh;
overflow-y: auto;
}
.filter-overlay {
position: absolute;
top: 10px;
right: 10px;
background: rgba(255, 255, 255, 0.9);
padding: 10px;
border-radius: 5px;
box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
max-width: 300px;
max-height: 90vh;
overflow-y: auto;
}
h2, h3 { margin-top: 0; }
ul { padding-left: 20px; }
a { color: #0078ff; text-decoration: none; }
a:hover { text-decoration: underline; }
.event-popup { max-width: 300px; }
.filter-list {
list-style: none;
padding: 0;
margin: 0;
}
.filter-item {
margin-bottom: 8px;
display: flex;
align-items: center;
}
.filter-item input {
margin-right: 8px;
}
.filter-item label {
cursor: pointer;
flex-grow: 1;
}
.filter-count {
color: #666;
font-size: 0.8em;
margin-left: 5px;
}
.color-dot {
display: inline-block;
width: 12px;
height: 12px;
border-radius: 50%;
margin-right: 5px;
}
.nav {
margin-bottom: 15px;
}
.nav a {
margin-right: 15px;
}
button {
background-color: #0078ff;
color: white;
border: none;
padding: 5px 10px;
border-radius: 3px;
cursor: pointer;
margin-right: 5px;
margin-bottom: 5px;
}
button:hover {
background-color: #0056b3;
}
</style>
</head>
<body>
<div id="map"></div>
<div class="map-overlay">
<h2>Map by Event Type</h2>
<div class="nav">
<a href="/">Home</a>
<a href="/demo">Demo Map</a>
<a href="/demo/by-what">Events by Type</a>
<a href="https://source.cipherbliss.com/tykayn/oedb-backend" target="_blank" title="View Source Code on Cipherbliss">
<i class="fas fa-code-branch"></i> Source
</a>
</div>
<p>This map shows events from the OpenEventDatabase filtered by their type.</p>
<p>Use the filter panel on the right to show/hide different event types.</p>
<div id="event-info">
<p>Loading events...</p>
</div>
</div>
<div class="filter-overlay">
<h3>Filter by Event Type</h3>
<div>
<button id="select-all">Select All</button>
<button id="deselect-all">Deselect All</button>
</div>
<ul id="filter-list" class="filter-list">
<li>Loading event types...</li>
</ul>
</div>
<script>
// Initialize the map
const map = new maplibregl.Map({
container: 'map',
style: 'https://demotiles.maplibre.org/style.json',
center: [2.3522, 48.8566], // Default center (Paris)
zoom: 4
});
// Add navigation controls
map.addControl(new maplibregl.NavigationControl());
// Add attribution control with OpenStreetMap attribution
map.addControl(new maplibregl.AttributionControl({
customAttribution: '© <a href="https://www.openstreetmap.org/copyright" target="_blank">OpenStreetMap</a> contributors'
}));
// Store all events and their types
let allEvents = null;
let eventTypes = new Set();
let eventsByType = {};
let markersByType = {};
let colorsByType = {};
// Generate a color for each event type
function getColorForType(type, index) {
// Predefined colors for better visual distinction
const colors = [
'#FF5722', '#E91E63', '#9C27B0', '#673AB7', '#3F51B5',
'#2196F3', '#03A9F4', '#00BCD4', '#009688', '#4CAF50',
'#8BC34A', '#CDDC39', '#FFEB3B', '#FFC107', '#FF9800'
];
return colors[index % colors.length];
}
// Fetch events when the map is loaded
map.on('load', function() {
fetchEvents();
});
// Function to fetch events from the API
function fetchEvents() {
// Update event info
document.getElementById('event-info').innerHTML = '<p>Loading events...</p>';
// Fetch events from the API - using limit=1000 to get more events
fetch('/event?limit=1000')
.then(response => response.json())
.then(data => {
if (data.features && data.features.length > 0) {
// Store all events
allEvents = data;
// Process events by type
processEventsByType(data);
// Create filter UI
createFilterUI();
// Add all events to the map initially
addAllEventsToMap();
// Fit map to events bounds
fitMapToBounds(data);
// Update event info
document.getElementById('event-info').innerHTML =
`<p>Found ${data.features.length} events across ${eventTypes.size} different types.</p>`;
} else {
document.getElementById('event-info').innerHTML = '<p>No events found.</p>';
document.getElementById('filter-list').innerHTML = '<li>No event types available.</li>';
}
})
.catch(error => {
console.error('Error fetching events:', error);
document.getElementById('event-info').innerHTML =
`<p>Error loading events: ${error.message}</p>`;
});
}
// Process events by their "what" type
function processEventsByType(data) {
eventTypes = new Set();
eventsByType = {};
// Group events by their "what" type
data.features.forEach(feature => {
const properties = feature.properties;
const what = properties.what || 'Unknown';
// Add to set of event types
eventTypes.add(what);
// Add to events by type
if (!eventsByType[what]) {
eventsByType[what] = [];
}
eventsByType[what].push(feature);
});
// Assign colors to each type
let index = 0;
eventTypes.forEach(type => {
colorsByType[type] = getColorForType(type, index);
index++;
});
}
// Create the filter UI
function createFilterUI() {
const filterList = document.getElementById('filter-list');
filterList.innerHTML = '';
// Sort event types alphabetically
const sortedTypes = Array.from(eventTypes).sort();
// Create a checkbox for each event type
sortedTypes.forEach(type => {
const count = eventsByType[type].length;
const color = colorsByType[type];
const li = document.createElement('li');
li.className = 'filter-item';
const checkbox = document.createElement('input');
checkbox.type = 'checkbox';
checkbox.id = `filter-${type}`;
checkbox.checked = true;
checkbox.addEventListener('change', () => {
toggleEventType(type, checkbox.checked);
});
const colorDot = document.createElement('span');
colorDot.className = 'color-dot';
colorDot.style.backgroundColor = color;
const label = document.createElement('label');
label.htmlFor = `filter-${type}`;
label.appendChild(colorDot);
label.appendChild(document.createTextNode(type));
const countSpan = document.createElement('span');
countSpan.className = 'filter-count';
countSpan.textContent = `(${count})`;
label.appendChild(countSpan);
li.appendChild(checkbox);
li.appendChild(label);
filterList.appendChild(li);
});
// Add event listeners for select/deselect all buttons
document.getElementById('select-all').addEventListener('click', selectAllEventTypes);
document.getElementById('deselect-all').addEventListener('click', deselectAllEventTypes);
}
// Add all events to the map
function addAllEventsToMap() {
// Clear existing markers
clearAllMarkers();
// Add markers for each event type
Object.keys(eventsByType).forEach(type => {
addEventsOfTypeToMap(type);
});
}
// Add events of a specific type to the map
function addEventsOfTypeToMap(type) {
if (!markersByType[type]) {
markersByType[type] = [];
}
const events = eventsByType[type];
const color = colorsByType[type];
events.forEach(feature => {
const coordinates = feature.geometry.coordinates.slice();
const properties = feature.properties;
// Create popup content
let popupContent = '<div class="event-popup">';
popupContent += `<h3>${properties.label || 'Event'}</h3>`;
popupContent += `<p><strong>Type:</strong> ${type}</p>`;
// Display all properties
popupContent += '<div style="max-height: 300px; overflow-y: auto;">';
popupContent += '<table style="width: 100%; border-collapse: collapse;">';
// Sort properties alphabetically for better organization
const sortedKeys = Object.keys(properties).sort();
for (const key of sortedKeys) {
// Skip the label as it's already displayed as the title
if (key === 'label') continue;
const value = properties[key];
let displayValue;
// Format the value based on its type
if (value === null || value === undefined) {
displayValue = '<em>null</em>';
} else if (typeof value === 'object') {
displayValue = `<pre style="margin: 0; white-space: pre-wrap;">${JSON.stringify(value, null, 2)}</pre>`;
} else if (typeof value === 'string' && value.startsWith('http')) {
displayValue = `<a href="${value}" target="_blank">${value}</a>`;
} else {
displayValue = String(value);
}
popupContent += `
<tr style="border-bottom: 1px solid #eee;">
<td style="padding: 4px; font-weight: bold; vertical-align: top;">${key}:</td>
<td style="padding: 4px;">${displayValue}</td>
</tr>`;
}
popupContent += '</table>';
popupContent += '</div>';
popupContent += '</div>';
// Create popup
const popup = new maplibregl.Popup({
closeButton: true,
closeOnClick: true
}).setHTML(popupContent);
// Add marker with popup
const marker = new maplibregl.Marker({
color: color
})
.setLngLat(coordinates)
.setPopup(popup)
.addTo(map);
// Store marker reference
markersByType[type].push(marker);
});
}
// Toggle visibility of events by type
function toggleEventType(type, visible) {
if (!markersByType[type]) return;
markersByType[type].forEach(marker => {
if (visible) {
marker.addTo(map);
} else {
marker.remove();
}
});
}
// Select all event types
function selectAllEventTypes() {
const checkboxes = document.querySelectorAll('#filter-list input[type="checkbox"]');
checkboxes.forEach(checkbox => {
checkbox.checked = true;
const type = checkbox.id.replace('filter-', '');
toggleEventType(type, true);
});
}
// Deselect all event types
function deselectAllEventTypes() {
const checkboxes = document.querySelectorAll('#filter-list input[type="checkbox"]');
checkboxes.forEach(checkbox => {
checkbox.checked = false;
const type = checkbox.id.replace('filter-', '');
toggleEventType(type, false);
});
}
// Clear all markers from the map
function clearAllMarkers() {
Object.keys(markersByType).forEach(type => {
if (markersByType[type]) {
markersByType[type].forEach(marker => marker.remove());
}
});
markersByType = {};
}
// Function to fit map to events bounds
function fitMapToBounds(geojson) {
if (geojson.features.length === 0) return;
// Create a bounds object
const bounds = new maplibregl.LngLatBounds();
// Extend bounds with each feature
geojson.features.forEach(feature => {
bounds.extend(feature.geometry.coordinates);
});
// Fit map to bounds with padding
map.fitBounds(bounds, {
padding: 50,
maxZoom: 12
});
}
</script>
</body>
</html>
"""
# Set the response body and status
resp.text = html
resp.status = falcon.HTTP_200
logger.success("Successfully processed GET request to /demo/map-by-what")
except Exception as e:
logger.error(f"Error processing GET request to /demo/map-by-what: {e}")
resp.status = falcon.HTTP_500
resp.text = f"Error: {str(e)}"
events_by_what = defaultdict(list)
if events_data.get('features'):
for feature in events_data['features']:
properties = feature.get('properties', {})
what = properties.get('what', 'Unknown')
events_by_what[what].append({
'id': properties.get('id'),
'label': properties.get('label', 'Unnamed Event'),
'coordinates': feature.get('geometry', {}).get('coordinates', [0, 0])
})
# Create HTML response
html = """
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Events by Type - OpenEventDatabase</title>
<style>
body {
font-family: Arial, sans-serif;
line-height: 1.6;
max-width: 1200px;
margin: 0 auto;
padding: 20px;
}
h1 { color: #333; }
h2 {
color: #0078ff;
margin-top: 30px;
padding-bottom: 5px;
border-bottom: 1px solid #eee;
}
ul { padding-left: 20px; }
li { margin-bottom: 8px; }
a { color: #0078ff; text-decoration: none; }
a:hover { text-decoration: underline; }
.nav {
background-color: #f5f5f5;
padding: 10px;
border-radius: 5px;
margin-bottom: 20px;
}
.nav a {
margin-right: 15px;
}
.event-count {
color: #666;
font-size: 0.9em;
}
</style>
</head>
<body>
<div class="nav">
<a href="/">Home</a>
<a href="/demo">Demo Map</a>
<a href="/demo/map-by-what">Map by Event Type</a>
</div>
<h1>Events by Type</h1>
<p>This page lists all events from the OpenEventDatabase organized by their type.</p>
"""
# Add event types and their events
if events_by_what:
# Sort event types alphabetically
sorted_what_types = sorted(events_by_what.keys())
# Add quick navigation
html += "<h2>Quick Navigation</h2><ul>"
for what_type in sorted_what_types:
event_count = len(events_by_what[what_type])
html += f'<li><a href="#what-{what_type.replace(" ", "-")}">{what_type}</a> <span class="event-count">({event_count} events)</span></li>'
html += "</ul>"
# Add sections for each event type
for what_type in sorted_what_types:
events = events_by_what[what_type]
html += f'<h2 id="what-{what_type.replace(" ", "-")}">{what_type} <span class="event-count">({len(events)} events)</span></h2>'
html += "<ul>"
# Sort events by label
sorted_events = sorted(events, key=lambda x: x.get('label', ''))
for event in sorted_events:
event_id = event.get('id')
event_label = event.get('label', 'Unnamed Event')
coordinates = event.get('coordinates', [0, 0])
html += f'<li><a href="/event/{event_id}" target="_blank">{event_label}</a> '
html += f'<small>[<a href="https://www.openstreetmap.org/?mlat={coordinates[1]}&mlon={coordinates[0]}&zoom=15" target="_blank">map</a>]</small></li>'
html += "</ul>"
else:
html += "<p>No events found in the database.</p>"
html += """
</body>
</html>
"""
# Set the response body and status
resp.text = html
resp.status = falcon.HTTP_200
logger.success("Successfully processed GET request to /demo/by-what")
except Exception as e:
logger.error(f"Error processing GET request to /demo/by-what: {e}")
resp.status = falcon.HTTP_500
resp.text = f"Error: {str(e)}"
# Create a global instance of DemoResource
demo = DemoResource()