discord bot

server/src/services/discordBotService/presence.js

@@ -0,0 +1,68 @@
+// Discord Presence Module
+// Purpose: Owns rotating Discord presence text derived from rover readiness, mode, and community goals.
+// Scope: Handles presence update scheduling/state and exposes start/recompute controls for orchestration.
+const { ActivityType } = require('discord.js');
+
+function createPresenceManager({ client, logger, getMode, getCommunityGoal, countReady }) {
+  const PRESENCE_ROTATE_MS = 20000;
+  let presenceInterval = null;
+  let presenceShowGoal = false;
+
+  function truncatePresenceText(text, maxLength) {
+    if (!text) return '';
+    if (text.length <= maxLength) return text;
+    if (maxLength <= 3) return text.slice(0, maxLength);
+    return `${text.slice(0, maxLength - 3)}...`;
+  }
+
+  function buildPresenceName() {
+    const { ready, total } = countReady();
+    const mode = getMode();
+    const goal = getCommunityGoal();
+    const goalText = goal?.text ? String(goal.text).trim() : '';
+    if (presenceShowGoal && goalText) {
+      const trimmed = truncatePresenceText(goalText, 110);
+      return `Goal: ${trimmed}`;
+    }
+    return `${mode} · ${ready}/${total} Rovers Ready`;
+  }
+
+  async function updatePresence() {
+    if (!client?.user) return;
+    try {
+      await client.user.setPresence({
+        activities: [{ name: buildPresenceName(), type: ActivityType.Watching }],
+        status: 'online',
+      });
+    } catch (err) {
+      logger.warn('Failed to update Discord presence', err.message);
+    }
+  }
+
+  function schedulePresenceRotation() {
+    if (presenceInterval) {
+      clearInterval(presenceInterval);
+      presenceInterval = null;
+    }
+    const goal = getCommunityGoal();
+    if (!goal?.text) {
+      presenceShowGoal = false;
+      updatePresence();
+      return;
+    }
+    presenceShowGoal = false;
+    updatePresence();
+    presenceInterval = setInterval(() => {
+      presenceShowGoal = !presenceShowGoal;
+      updatePresence();
+    }, PRESENCE_ROTATE_MS);
+  }
+
+  return {
+    schedulePresenceRotation,
+  };
+}
+
+module.exports = {
+  createPresenceManager,
+};