First test app thing.

2025-02-25 17:51:06 +02:00 · 2025-02-25 17:51:06 +02:00 · a9a4709a07
commit a9a4709a07
3 changed files with 80 additions and 0 deletions
--- a/frontend.js
+++ b/frontend.js
@ -0,0 +1,20 @@
+function updateLights(state) {
+    document.getElementById("red").classList.toggle("red", state === "red");
+    document.getElementById("green").classList.toggle("green", state === "green");
+}
+
+function fetchStatus() {
+    fetch("/status")
+        .then(response => response.json())
+        .then(data => updateLights(data.state))
+        .catch(console.error);
+}
+
+function toggleLight() {
+    fetch("/toggle", { method: "POST" })
+        .then(response => response.json())
+        .then(data => updateLights(data.state))
+        .catch(console.error);
+}
+
+setInterval(fetchStatus, 1000);
--- a/main.py
+++ b/main.py
@ -0,0 +1,33 @@
+from flask import Flask, render_template, jsonify
+import threading
+import time
+
+app = Flask(__name__)
+current_state = "red"
+lock = threading.Lock()
+
+def reset_to_red():
+    global current_state
+    time.sleep(10)
+    with lock:
+        current_state = "red"
+
+@app.route("/")
+def index():
+    return render_template("site_template.j2", state=current_state)
+
+@app.route("/status")
+def status():
+    return jsonify({"state": current_state})
+
+@app.route("/toggle", methods=["POST"])
+def toggle():
+    global current_state
+    with lock:
+        if current_state != "green":
+            current_state = "green"
+            threading.Thread(target=reset_to_red, daemon=True).start()
+    return jsonify({"state": current_state})
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", port=8000)
--- a/site_template.j2
+++ b/site_template.j2
@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Traffic Light</title>
+    <style>
+        body { text-align: center; font-family: Arial, sans-serif; }
+        .light-container { display: inline-block; margin-top: 50px; }
+        .light { width: 80px; height: 80px; margin: 10px; border-radius: 50%; background: gray; }
+        .red { background: red; }
+        .yellow { background: yellow; }
+        .green { background: green; }
+    </style>
+    <script src="frontend.js" defer></script>
+</head>
+<body>
+    <h1>Traffic Light</h1>
+    <div class="light-container">
+        <div id="red" class="light {% if state == 'red' %}red{% endif %}"></div>
+        <div id="yellow" class="light"></div>
+        <div id="green" class="light {% if state == 'green' %}green{% endif %}"></div>
+    </div>
+    <br>
+    <button onclick="toggleLight()">Toggle Green</button>
+</body>
+</html>