initial basic mockup on gui layout before integrating with api calls

daemon/core/rest/corerest.py

@@ -1,6 +1,11 @@
+import os
+
 from flask import Flask
 from flask import jsonify
 from flask import request
+from flask import render_template
+from flask_socketio import SocketIO
+from flask_socketio import emit
 
 from core import logger
 from core.emulator.coreemu import CoreEmu
@@ -12,7 +17,12 @@ from core.enumerations import LinkTypes
 from core.enumerations import NodeTypes
 from core.misc import nodeutils
 
-app = Flask(__name__)
+_TEMPLATE_PATH = os.path.join(os.path.dirname(os.path.abspath(__file__)), "templates")
+logger.info("template folder: %s", _TEMPLATE_PATH)
+
+app = Flask(__name__, template_folder=_TEMPLATE_PATH)
+app.config["SECRET_KEY"] = "core"
+socketio = SocketIO(app)
 
 coreemu = CoreEmu()
 
@@ -23,6 +33,31 @@ def link_data_str(link, key):
         link[key] = str(value)
 
 
+@socketio.on("connect")
+def websocket_connect():
+    emit("info", {"message": "You are connected!"})
+    socketio.emit("node", {
+        "id": 1,
+        "x": 100,
+        "y": 101
+    })
+    socketio.emit("node", {
+        "id": 1,
+        "x": 100,
+        "y": 150
+    })
+
+
+@socketio.on("disconnect")
+def websocket_disconnect():
+    logger.info("websocket client disconnected")
+
+
+@app.route("/")
+def home():
+    return render_template('index.html')
+
+
 @app.route("/sessions")
 def get_sessions():
     sessions = []
@@ -295,4 +330,5 @@ def get_node_links(session_id, node_id):
 
 
 def start():
-    app.run(host="0.0.0.0")
+    socketio.run(app, host="0.0.0.0")
+    # app.run(host="0.0.0.0")