update to node site

website/scripts/ChatCommands.js

@@ -0,0 +1,63 @@
+/**
+ * Handles IRC-style slash commands for the chat node.
+ */
+export class ChatCommands {
+    static COMMANDS = [
+        { name: 'nick',    args: '<name>',           desc: 'Change display name',    aliases: [] },
+        { name: 'help',    args: '',                 desc: 'Show command list',      aliases: [] },
+    ];
+
+    /**
+     * @param {import('./ChatNode.js').ChatNode} chat
+     */
+    constructor(chat) {
+        this.chat = chat;
+    }
+
+    get client() { return this.chat.getClient(); }
+
+    /**
+     * @param {string} message
+     */
+    async handle(message) {
+        const parts = message.slice(1).split(' ');
+        const command = parts[0].toLowerCase();
+        const args = parts.slice(1);
+
+        const aliasMap = new Map();
+        for (const def of ChatCommands.COMMANDS) {
+            aliasMap.set(def.name, def.name);
+            for (const alias of def.aliases) aliasMap.set(alias, def.name);
+        }
+
+        const canonical = aliasMap.get(command);
+        if (!canonical || typeof this[canonical] !== 'function') {
+            this.chat.addErrorMessage(`Unknown command: /${command}. Type /help for commands.`);
+            return;
+        }
+        await this[canonical](args);
+    }
+
+    async nick(args) {
+        if (!args[0]) {
+            this.chat.addErrorMessage('Usage: /nick NewNickname');
+            return;
+        }
+        try {
+            if (!await this.client.setDisplayName(args[0])) {
+                throw new Error('Server refused');
+            }
+            this.chat.addSystemMessage(`Nickname changed to ${args[0]}`);
+        } catch (e) {
+            this.chat.addErrorMessage(`Failed to change nickname: ${e.message}`);
+        }
+    }
+
+    help() {
+        [
+            '─── Commands ───────────────────────',
+            'Profile: /nick <name>',
+            '─────────────────────────────────────',
+        ].forEach(l => this.chat.addSystemMessage(l));
+    }
+}