From 57e5ea1f424ea2567e10c3945d9273a92a547332 Mon Sep 17 00:00:00 2001
From: Martin Ashby <martin@martin-laptop.lan>
Date: Tue, 15 May 2018 22:12:09 +0100
Subject: Basic should be working

---
 server.py | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 server.py

(limited to 'server.py')

diff --git a/server.py b/server.py
new file mode 100644
index 0000000..84511f5
--- /dev/null
+++ b/server.py
@@ -0,0 +1,70 @@
+import json
+from flask import Flask, send_from_directory
+from flask_sockets import Sockets
+from gevent import pywsgi
+from geventwebsocket.handler import WebSocketHandler
+
+try:
+    import unicornhathd as unicorn
+    print("unicorn hat hd detected")
+except ImportError:
+    from unicorn_hat_sim import unicornhathd as unicorn
+
+NO_OP = 'NO_OP'
+SET_PIXEL = 'SET_PIXEL'
+CLEAR = 'CLEAR'
+
+all_clients = set()
+
+app = Flask(__name__, static_folder='build/')
+sockets = Sockets(app)
+
+def send_state():
+    global all_clients
+    jsonPixels = json.dumps(unicorn.get_pixels())
+    for client in all_clients:
+        client.send(jsonPixels)
+
+def execute_command(command):
+    cmd_type = command['type']
+    if cmd_type == NO_OP:
+        pass 
+    elif cmd_type == SET_PIXEL:
+        x = int(command['x'])
+        y = int(command['y'])
+        r = int(command['r'])
+        g = int(command['g'])
+        b = int(command['b'])
+        unicorn.set_pixel(x, y, r, g, b)
+        unicorn.show()
+    elif cmd_type == CLEAR:
+        unicorn.clear()
+        unicorn.show()
+
+@sockets.route('/ws')
+def do_websocket(websocket):
+    global all_clients
+    all_clients.add(websocket)
+    try:
+        while not websocket.closed:
+            command = websocket.receive()
+            cmd = json.loads(command)
+            execute_command(cmd)
+            send_state()
+    finally:
+        all_clients.remove(websocket)
+
+
+@app.route('/<path:path>')
+def send_static(path):
+    return send_from_directory('build/', path)
+
+def main():
+    try:
+        server = pywsgi.WSGIServer(('', 3001), app, handler_class=WebSocketHandler)
+        server.serve_forever()
+    except:
+        unicorn.off()
+
+if __name__=="__main__":
+    main()
\ No newline at end of file
-- 
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