aggiunto parametro template

app.py

@@ -3,6 +3,7 @@
 import requests
 import json
 import datetime
+import pathlib
 from jinja2 import Environment, FileSystemLoader
 from flask import Flask
 from flask import render_template, request
@@ -10,7 +11,8 @@ from flask import render_template, request
 app = Flask(__name__)
 
 gancio_instance = 'balotta.org'
-template_name = 'simple'
+templates = [x.stem for x in pathlib.Path('./templates/flyers/').glob("*.html")]
+default_template = 'simple'
 events_ep = f'https://{gancio_instance}/api/events'
 
 def day2giorno(day):
@@ -48,14 +50,20 @@ def fetch_events(api_endpoint):
 @app.route("/")
 def main():
     events = fetch_events(events_ep)
-    return render_template('index.html', events=events)
+    return render_template('index.html',
+                           events=events,
+                           templates=templates,
+                           default_template=default_template)
 
 
 @app.route("/flyer")
 def flyer():
     relevant_events = request.args.getlist('events', type=int)
+    template = request.args.get("template", default=default_template, type=str)
+    if template not in templates:
+        return "template not found", 404
     events = fetch_events(events_ep)
     events = [ e for e in events if e['id'] in relevant_events ]    
-    return render_template(f'flyers/{template_name}.html', events=events)
+    return render_template(f'flyers/{template}.html', events=events)
     
     

templates/index.html

@@ -9,7 +9,14 @@ L'attuale layout può contenere fino a 24 eventi.
 </div>
 <br>
 <form action="/flyer" target="_blank">
-{% for event in events %}
+  <label for="template">Scegli un template</label>
+  <select id="template" name="template">
+    {% for template in templates %}
+    <option value="{{template}}">{{template}}</option>
+    {% endfor %} 
+  </select> 
+  <br>
+  {% for event in events %}
 <input type="checkbox" {% if loop.index <= 24 %} checked {% endif %} id="{{event.id}}" name="events" value="{{event.id}}">
 <label for="{{event.id}}"> {{loop.index}} [ {{event.when}} ] {{ event.title }}</label><br>
 {% endfor %}