From f838321d6c9d1089e384ecd605c13fe59a1dc9bc Mon Sep 17 00:00:00 2001
From: KOSASIH <kosasihg88@gmail.com>
Date: Tue, 4 Jun 2024 19:32:05 +0700
Subject: [PATCH] Create node.py

---
 node.py | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 node.py

diff --git a/node.py b/node.py
new file mode 100644
index 0000000..fca6a4c
--- /dev/null
+++ b/node.py
@@ -0,0 +1,77 @@
+import socket
+import threading
+from queue import Queue
+from time import sleep
+
+class Node:
+    def __init__(self, node_id, host, port):
+        self.node_id = node_id
+        self.host = host
+        self.port = port
+        self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+        self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+        self.socket.bind((self.host, self.port))
+        self.socket.listen(5)
+        self.clients = []
+        self.data_queue = Queue()
+        self.running = True
+        self.discovery_thread = threading.Thread(target=self.discover_nodes)
+        self.discovery_thread.start()
+
+    def discover_nodes(self):
+        while self.running:
+            try:
+                broadcast_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+                broadcast_socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
+                message = f'Node Discovery: {self.node_id}'
+                broadcast_socket.sendto(message.encode(), ('<broadcast>', 9000))
+                sleep(5)
+            except Exception as e:
+                print(f'Error during node discovery: {e}')
+
+    def connect_client(self, client_socket, client_address):
+        print(f'New connection from {client_address}')
+        self.clients.append((client_socket, client_address))
+        client_thread = threading.Thread(target=self.handle_client, args=(client_socket, client_address))
+        client_thread.start()
+
+    def handle_client(self, client_socket, client_address):
+        while self.running:
+            try:
+                data = client_socket.recv(1024)
+                if data:
+                    self.data_queue.put((client_address, data))
+                else:
+                    break
+            except Exception as e:
+                print(f'Error handling client: {e}')
+                break
+
+        self.clients.remove((client_socket, client_address))
+        client_socket.close()
+
+    def send_data(self, data, destination_address):
+        for client in self.clients:
+            if client[1] == destination_address:
+                client[0].sendall(data)
+
+    def receive_data(self):
+        while self.running:
+            try:
+                address, data = self.data_queue.get()
+                print(f'Received data from {address}: {data.decode()}')
+            except Exception as e:
+                print(f'Error receiving data: {e}')
+
+    def stop(self):
+        self.running = False
+        self.socket.close()
+        self.discovery_thread.join()
+
+if __name__ == '__main__':
+    node = Node(1, '127.0.0.1', 9001)
+    try:
+        while True:
+            pass
+    except KeyboardInterrupt:
+        node.stop()