# Changes since last working state ("jetzt geht es" — 12 May 2026, 14:01)

All changes are **uncommitted** (working tree vs HEAD). HEAD = last git commit (the known-good baseline from ~3 weeks ago).

## Legend

- **PRE-SUCCESS**: Change was present at 14:01 when the bot successfully joined
- **POST-SUCCESS**: Change was made after 14:01 (potential regression source)
- **REVERTED**: Was added after 14:01 then reverted — should be back to pre-success state

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## 1. `audioCaptureProcedure.ts` — Audio Capture Gating (PRE-SUCCESS)

**What:** Complete rewrite of the RTCPeerConnection wrapper. Instead of immediately building an AudioContext/MediaStreamSource on every `track` event, the wrapper now:
- Sets `window.__audioCaptureEnabled = false` by default
- Only logs diagnostics while disabled (no clone, no AudioContext, no MediaStream)
- Exposes `window.__audioCaptureAttachTrack(pc, track)` as the audio graph builder
- `startCapture()` (called AFTER `in_meeting`) sets the flag to `true` and retroactively attaches existing tracks via `getReceivers()`
- The `ended` handler does passive cleanup (no `ctx.close()`, no `disconnect()`)

**Why:** Prevents `rejectMediaDescriptionsUpdateAsync` crash by keeping out of Teams' WebRTC pipeline during pre-join/lobby/SDP renegotiation.

**Risk:** This was the exact fix that led to "jetzt geht es". Should be safe.

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## 2. `joinProcedure.ts` — Blind Wait Elimination + Selector Rewrite (PRE-SUCCESS)

### 2a. New helper functions (replacing `waitForTimeout`)
- `_waitForPreJoinAfterLauncher()` — waits for pre-join UI (10s timeout)
- `_waitForNoAudioVideoModalGone()` — waits for no-AV modal dismissal
- `_waitForPermissionOverlayCleared()` — waits for permission dialog gone
- `_waitForLeaveUiSettled()` — waits for hangup button to disappear

All `waitForTimeout` calls replaced with these. **Timeout is 10s** (vs original 1-2s).

### 2b. `isInMeetingLobby()` rewrite
**OLD (HEAD):** Text-based detection using `bodyText.includes('will let you in')` + `data-tid` fallback.
**NEW:** Purely structural selectors: `[data-tid="lobby-screen"]`, `[data-cid="lobby-screen"]`, `[id*="lobby"]`, `[class*="lobby" i]`, etc.

### 2c. `isInMeeting()` rewrite
**OLD (HEAD):** Mixed text-based (`aria-label*="Leave"`, `bodyText.includes('Mute')`) + `data-tid` selectors.
**NEW:** Purely structural: `button[id="hangup-button"]`, `button[id="microphone-button"]`, `[data-cid="ts-hangup-btn"]`, `[data-cid="calling-unified-bar"]`, etc. Fallback uses DOM structure check (class-based `calling-controls`, button ID counting).

**Risk:** The new `_waitForPreJoinAfterLauncher()` has a 10s timeout. In logs, this timeout fires ("Pre-join UI not detected after launcher") — the old 2s `waitForTimeout` was faster. This extra delay might change timing.

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## 3. `orchestrator.ts` — Lobby Admission + Browser Args (MIXED)

### 3a. `_waitForMeetingAdmission()` (POST-SUCCESS, then re-fixed)
**At 14:01:** Had `wasInLobby` tracking — when lobby disappeared, it kept waiting patiently for meeting UI.
**After 14:01:** Was simplified to just poll `isInMeeting()` without tracking lobby state. Bot couldn't detect admission.
**Current:** Re-added `wasInLobby` tracking + `isInMeetingLobby()` check per iteration.

### 3b. `_launchBrowser()` comment (PRE-SUCCESS)
Added documentation comment explaining why anon and auth use different Chromium args.

### 3c. `_attemptAuthJoin()` cleanup (PRE-SUCCESS)
Minor comment/formatting changes in the `anon=true` stripping logic.

### 3d. `_stripAnonFromInnerMeetingUrl()` comment (PRE-SUCCESS)
Expanded docstring.

### 3e. ChatProcedure constructor trailing comma (PRE-SUCCESS)
Cosmetic: added trailing comma after the callback parameter.

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## 4. `chatProcedure.ts` — Simplified Compose + Root-Cause Guard (MIXED)

### 4a. `_ensureComposeExpanded()` (PRE-SUCCESS — was being developed at 14:01)
New method that detects Teams' "simplified compose" layout (light-meetings) and clicks the expand button so ckeditor is visible.

### 4b. Updated `_isChatPanelOpen()` selectors (PRE-SUCCESS)
Added `[data-tid="ckeditor"]`, `[data-tid="newMessageCommands-expand-compose"]`, `[data-tid="simplified-compose-bottom-toolbar"]`.

### 4c. Root-cause guard: `if (!text && author !== 'Unknown')` (PRE-SUCCESS)
In both periodic scan and MutationObserver paths: the `innerText` fallback only fires when an author was actually identified. Prevents "Unknown: 22:04" timestamp noise.

### 4d. Container fallback for light-meetings (PRE-SUCCESS)
When the chat container has `offsetHeight === 0` or yields 0 candidates but global `fui-ChatMessage` elements exist, promotes search target from container to `document`.

### 4e. `_sendChatMessage()` selector additions (PRE-SUCCESS)
Added `[data-tid="ckeditor"]` as a selector for the input box.

### 4f. Reverted changes (were POST-SUCCESS, now back to PRE-SUCCESS state)
- ~~`botName` constructor parameter~~ → removed
- ~~expanded `noisePatterns`~~ → removed
- ~~`isOwnAuthor()` skip logic~~ → removed

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## 5. `teamsActionsService.ts` — Blind Wait Elimination (PRE-SUCCESS)

Replaced `waitForTimeout` calls with targeted waits:
- Menu dismissal: `waitForFunction(() => !document.querySelector('[role="menu"]'))`
- Chat input focus: `waitForFunction(() => document.activeElement?.matches(...))`
- More menu: `waitForSelector('[role="menu"]')`
- Captions button: `waitForSelector('#closed-captions-button')`
- Chat panel input: `waitForSelector('[data-tid="ckeditor-replyConversation"]')`
- Removed delay after media toggles

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## 6. `authProcedure.ts` — Blind Wait Elimination (PRE-SUCCESS)

Replaced `waitForTimeout` calls with targeted waits:
- After sign-in click: wait for MFA/error/KMSI indicator
- After email Next click: wait for password input
- After "Stay signed in": wait for KMSI banner dismissal

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## 7. `authTestProcedure.ts` — Blind Wait Elimination (PRE-SUCCESS)

Removed redundant `waitForTimeout` calls and replaced with targeted `waitForSelector` calls for:
- Login page elements, pre-join screen, meeting UI, launcher, sign-in dialog

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## 8. `backgroundProcedure.ts` — Blind Wait Elimination (PRE-SUCCESS)

Replaced `waitForTimeout` calls with targeted waits:
- Background effects panel visibility
- File input appearance after add-image click
- Background thumbnail appearance after upload
- Panel dismissal via Escape

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## Summary: What to roll back for a clean test

If rolling back to HEAD (git checkout):
- You lose the **audio capture gating** (the fix that made "jetzt geht es" work)
- You lose the **blind wait elimination** (improves robustness)
- You lose the **chat simplified compose** fix
- You lose the **structural selector rewrites** for lobby/meeting detection

**Recommended selective rollback** (keep what was working):
1. Keep `audioCaptureProcedure.ts` changes (audio capture gating)
2. Keep `chatProcedure.ts` changes (compose expand, root-cause guard, container fallback)
3. Consider reverting `joinProcedure.ts` helper timeouts back to shorter values (10s → 2-3s) — the 10s `_waitForPreJoinAfterLauncher` is timing out and adding unnecessary delay
4. Keep `orchestrator.ts` `_waitForMeetingAdmission` with `wasInLobby` tracking
5. The blind-wait changes in auth/background/teamsActions are safe (only affect those specific flows)