green mode slop 1

server/src/rewards/definitions/greenMode.js

@@ -0,0 +1,75 @@
+// Reward Definition: Green Mode
+// Purpose: Enables the server-wide green theme and room effect for twenty minutes.
+// Scope: Owns button-box timing/recovery while delegating the actual mode to greenModeService.
+const DURATION_MS = 20 * 60 * 1000;
+
+let activeTimer = null;
+let unsubscribeGreenMode = null;
+
+function clearRuntimeWatchers() {
+  if (activeTimer) {
+    clearTimeout(activeTimer);
+    activeTimer = null;
+  }
+  if (unsubscribeGreenMode) {
+    unsubscribeGreenMode();
+    unsubscribeGreenMode = null;
+  }
+}
+
+async function stopGreenMode(ctx) {
+  clearRuntimeWatchers();
+  await ctx.setGreenMode(false, { source: 'buttonbox:greenModeExpired' });
+  ctx.clearEffect('greenMode');
+}
+
+async function startGreenMode(ctx, effect = {}) {
+  clearRuntimeWatchers();
+  const endsAt = Number(effect.endsAt || Date.now() + DURATION_MS);
+  const remaining = Math.max(0, endsAt - Date.now());
+
+  if (remaining <= 0) {
+    await stopGreenMode(ctx);
+    return;
+  }
+
+  await ctx.setGreenMode(true, { source: 'buttonbox:greenMode' });
+  ctx.saveEffect('greenMode', { endsAt });
+
+  /*
+    Access-mode changes disable green mode through greenModeService. Watching
+    that shared state transition lets the reward discard its persisted effect
+    immediately, so a restart cannot accidentally revive a reward that was
+    intentionally ended early.
+  */
+  unsubscribeGreenMode = ctx.onGreenModeChange((enabled) => {
+    if (enabled) return;
+    clearRuntimeWatchers();
+    ctx.clearEffect('greenMode');
+  });
+
+  activeTimer = setTimeout(() => {
+    stopGreenMode(ctx).catch((err) => {
+      ctx.logger.warn('green mode reward stop failed', { error: err.message });
+    });
+  }, remaining);
+}
+
+module.exports = {
+  id: 'greenMode',
+  name: 'Green mode',
+  description: 'Makes the room and server green for 20 minutes.',
+  goal: 5,
+  async run(ctx) {
+    await startGreenMode(ctx, { endsAt: Date.now() + DURATION_MS });
+  },
+  async recover(ctx, effect) {
+    // Recovery must never manufacture a fresh twenty-minute window from a
+    // missing or corrupt persisted deadline. Treat it as expired and clean up.
+    if (!Number.isFinite(Number(effect?.endsAt))) {
+      await stopGreenMode(ctx);
+      return;
+    }
+    await startGreenMode(ctx, effect);
+  },
+};