binaryrpc-client-js/chat_client.html at main · efecan0/binaryrpc-client-js · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>BinaryRPC Chat</title>
    <style>
        body {
            font-family: sans-serif;
            padding: 20px;
            max-width: 600px;
            margin: auto;
        }

        #chat {
            border: 1px solid #ccc;
            padding: 10px;
            height: 300px;
            overflow-y: scroll;
            margin-bottom: 10px;
        }

        #controls input,
        #controls button {
            margin: 5px 0;
            width: 100%;
            padding: 8px;
        }

        #messageInput {
            width: calc(100% - 60px);
            display: inline-block;
        }

        #sendBtn {
            width: 50px;
            display: inline-block;
        }
    </style>
</head>

<body>

    <h2>BinaryRPC Chat</h2>

    <div id="login">
        <input id="username" type="text" placeholder="Username">
        <input id="room" type="text" placeholder="Room Name">
        <button id="joinBtn">Join</button>
    </div>

    <div id="chatUI" style="display: none;">
        <div id="chat"></div>
        <div id="controls">
            <input id="messageInput" type="text" placeholder="Enter message...">
            <button id="sendBtn">Send</button>
            <button id="leaveBtn">Leave</button>
            <button id="disconnectBtn">Disconnect</button>
        </div>
    </div>


    <script type="module">
        import { encode, decode } from 'https://cdn.jsdelivr.net/npm/@msgpack/msgpack@3.1.1/+esm';
        window.MessagePack = { encode, decode };
    </script>
    <script src="binaryrpc.js"></script>

    <script>
        let rpc;
        let username;
        let room;

        const chatDiv = document.getElementById("chat");
        const chatUI = document.getElementById("chatUI");
        const LS_KEY = "sessionToken";
        const CL_KEY = "clientId";
        const DV_KEY = "deviceId";


        const clientId = localStorage.getItem(CL_KEY) || crypto.randomUUID();
        const deviceId = localStorage.getItem(DV_KEY) || Math.floor(Math.random() * 100000);
        const storedToken = localStorage.getItem(LS_KEY);

        localStorage.setItem(CL_KEY, clientId);
        localStorage.setItem(DV_KEY, deviceId);


        function appendMessage(msg) {
            const p = document.createElement("p");
            p.textContent = msg;
            chatDiv.appendChild(p);
            chatDiv.scrollTop = chatDiv.scrollHeight;
        }

        document.getElementById("joinBtn").onclick = async () => {
            username = document.getElementById("username").value.trim();
            room = document.getElementById("room").value.trim();

            if (!username || !room) {
                alert("Please enter both username and room name.");
                return;
            }

            rpc = new BinaryRPC("ws://localhost:5555", {
                onConnect: async () => {
                    try {
                        rpc.call("join", { username, "roomname": room });
                        rpc.call("get_token");
                    } catch (e) {
                        alert("Join failed: " + e.message);
                    }
                },
                onError: (e) => {
                    appendMessage("❌ Connection error.");
                }
            });


            rpc.registerHandler("message", (data) => {
                console.log(data);
                if (data.code == "JOIN") {
                    appendMessage(`🔵 Joined room: ${room}`);
                    chatUI.style.display = "block";
                    document.getElementById("login").style.display = "none";
                } else {
                    appendMessage(`💬 ${data.username}: ${data.message}`);
                }
            });

            rpc.registerHandler("get_token", (data) => {
                localStorage.setItem(LS_KEY, data.token);
            })
            rpc.connect(clientId, deviceId, storedToken);
        };

        document.getElementById("sendBtn").onclick = async () => {
            const input = document.getElementById("messageInput");
            const text = input.value.trim();
            if (!text) return;

            try {
                await rpc.call("say", { message: text });
                input.value = "";
            } catch (e) {
                appendMessage("❌ Failed to send message.");
            }
        };

        document.getElementById("leaveBtn").onclick = async () => {
            try {
                await rpc.call("leave", { username, room });
                appendMessage("🔴 You left the room.");
            } catch (e) {
                appendMessage("⚠️ Leave failed.");
            }
            rpc.disconnect();
            chatUI.style.display = "none";
            document.getElementById("login").style.display = "block";
        };


        document.getElementById("disconnectBtn").onclick = () => {
            if (rpc) {
                rpc.disconnect();
                rpc = null;
            }

            chatDiv.innerHTML = "";
            document.getElementById("messageInput").value = "";

            document.getElementById("username").value = "";
            document.getElementById("room").value = "";

            chatUI.style.display = "none";
            document.getElementById("login").style.display = "block";
        };

    </script>

</body>

</html>