Networking (TCP, UDP, WebSocket)

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// TCP Echo Server
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dekho("Starting TCP server on port 8080...");
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kaj handleConnection(conn) {
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    dekho("Client connected:", conn["remote_addr"]);
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    // Echo back the received data
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    dhoro data = conn["data"];
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    tcp_pathao(conn, "Echo: " + data);
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    dekho("Sent response");
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}
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tcp_server_chalu(8080, handleConnection);
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dekho("Server running!");
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// Keep server alive
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jotokkhon (sotti) {
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    ghumaao(1000);
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}

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proyash kaj tcpClient() {
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    dekho("Connecting to TCP server...");
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    // Connect to server (async)
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    dhoro conn = opekha tcp_jukto("localhost", 8080);
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    dekho("Connected!");
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    // Send message
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    tcp_lekho(conn, "Hello from BanglaCode!");
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    // Read response (async)
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    dhoro response = opekha tcp_shuno(conn);
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    dekho("Server replied:", response);
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    // Close connection
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    tcp_bondho(conn);
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}
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tcpClient();

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// UDP Server
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dekho("Starting UDP server on port 9000...");
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kaj handlePacket(packet) {
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    dekho("Received from:", packet["remote_addr"]);
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    dekho("Data:", packet["data"]);
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    // Send response back to client
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    udp_uttor(packet, "Received: " + packet["data"]);
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}
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udp_server_chalu(9000, handlePacket);
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dekho("UDP server listening!");
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jotokkhon (sotti) {
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    ghumaao(1000);
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}

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proyash kaj udpClient() {
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    dekho("Sending UDP packet...");
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    // Send UDP packet (async)
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    opekha udp_pathao("localhost", 9000, "Hello UDP!");
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    dekho("Packet sent!");
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}
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udpClient();

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// WebSocket Chat Server
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dekho("Starting WebSocket chat server on port 3000...");
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bishwo clients = [];
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kaj handleWebSocket(conn) {
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    dekho("Client connected:", conn["remote_addr"]);
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    // Add to clients list
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    dhokao(clients, conn);
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    // Broadcast messages to all clients
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    dhoro message = conn["message"];
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    ghuriye (dhoro i = 0; i < dorghyo(clients); i = i + 1) {
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        websocket_pathao(clients[i], "Broadcast: " + message);
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    }
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}
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websocket_server_chalu(3000, handleWebSocket);
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dekho("WebSocket server running on ws://localhost:3000");
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jotokkhon (sotti) {
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    ghumaao(1000);
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}

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proyash kaj wsClient() {
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    dekho("Connecting to WebSocket...");
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    // Connect to WebSocket server (async)
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    dhoro ws = opekha websocket_jukto("ws://localhost:3000");
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    dekho("Connected!");
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    // Send messages
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    websocket_pathao(ws, "Hello from BanglaCode!");
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    websocket_pathao(ws, "This is message 2");
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    // Wait a bit
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    ghumaao(2000);
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    // Close connection
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    websocket_bondho(ws);
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    dekho("Disconnected");
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}
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wsClient();

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{
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    id: "tcp_conn_1",           // Unique connection ID
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    host: "localhost",          // Host (client only)
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    port: 8080,                 // Port (client only)
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    remote_addr: "127.0.0.1:12345",  // Remote address
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    local_addr: "127.0.0.1:8080",    // Local address
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    data: "received data"       // Received data (server only)
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}

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{
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    id: "udp_conn_1",           // Unique packet ID
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    data: "packet data",        // Packet data
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    remote_addr: "127.0.0.1:12345",  // Sender address
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    local_addr: "127.0.0.1:9000"     // Receiver address
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}

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{
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    id: "ws_conn_1",            // Unique connection ID
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    url: "ws://localhost:3000", // WebSocket URL (client only)
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    connected: sotti,           // Connection status
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    remote_addr: "127.0.0.1:12345",  // Remote address
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    local_addr: "127.0.0.1:3000",    // Local address
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    message: "received message", // Received message (server only)
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    type: "text"                // Message type (text/binary/close)
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}