# HANDOFF — Session State

## Branch / Commit State

**`main`**, working tree has an **uncommitted TASK 18 work unit** (record-only pipeline + top-bar
pills/light/button UX + About resize + now button-label Start/End simplification) **plus a docs/image
memory-map fix** (derived-solution rule + README hero image). `origin/main` and head are both at
**`1e633f9`** (spin-guard rule), already pushed. This session's changes are **NOT committed** yet — see
"Next steps".

No feature branches pre-1.0: all work lands on `main` per work unit (pending the creator's go-ahead to
commit + push).

## Memory-map corrections (2026-08-29 — "don't re-derive" fix)

- **Incident:** the image-shrink recipe (for `docs/ytLlive-preview.jpg`) was never recorded when first
  done, so it was re-derived from scratch. Fixed by:
- **`AGENTS.md`** → Working rules: new **🔬 Derived-solution rule** (record a one-off solution in
  `MyMistakes.md` the same session; grep it first on any "did this before?" wall).
- **`MyMistakes.md`** → contract expanded: per-task failure log **+ RECIPES REGISTRY** (permanent, NOT
  truncated); recorded the verified image-shrink recipe.
- **`schema.md`** → file inventory now rows `MyMistakes.md` as the recipes registry.
- **`ai.md`** → Derivative-work section notes the derived-solution rule (registry reachable from map home).
- **`README.md`** + `docs/ytLlive-preview.jpg` → README hero image replaced (screenshot downscaled to
  1400×794, 188KB JPEG).


## TASK 18 — Local recording (in progress, 2026-08-29)

**Shipped in this (uncommitted) change:**
- `EncoderOptions` + `FfmpegArgs` + `FfmpegEncoder`: independent `StreamEnabled`/`RecordEnabled`/
  `RecordPath`; per-output blocks (`-f flv` stream, `-f mp4` record); encoder throws unless ≥1 output.
- `MainViewModel`: REC + ON-AIR pill toggles, status lights, dynamic `PrimaryButtonText`
  (Start Streaming / Start Recording), `ShowPrimaryStartButton`/`ShowLogInButton`/`ShowEndStreamButton`,
  `CanStartSession`, `AccountStatusLightToolTip`; `IsEditMode` += `!IsRecording`.
- `StartSession()` routes: ON-AIR → GoLive dialog then stream (± record); only-REC → `BeginRecordOnly()`
  (no YouTube dialog). `StopStream()` no longer signs the creator out (explicit logout only) and runs
  **rename-on-stop** to `ty-<yyyymmdd>-<HHmm start>-<hh2mm2 length>.mp4`.
- `Services/RecordingFile` (pure): auto-name `ty-…-0000.mp4` → rename-on-stop with hh2mm2 length.
- `LayoutStore.Load/SaveRecordFolder` + `ChooseRecordFolderCommand` (`OpenFolderDialog`), default
  `%APPDATA%\ytLlive\recordings\`.
- `MainWindow.xaml`: REC/ON-AIR pill `ToggleButton`s + status lights, dynamic button, status-light tooltip,
  About overlay border 520→650 / MaxHeight 560→700 / padding 24→28, About grid background `#171928`.
- Tests: `FfmpegEncoderTests` record-only + dual-output arg tests; `RecordingFileTests` (naming rules).

**Not done / parked:** manual rename dialog for the user (planned as a modal, needs a trigger since the
toast service has no actions) — parked; running-app verification of rename + dual output.

## Key facts / landmines

- **Pre-existing test failures (do not chase):** `AudioPipelineTests.Mix_HonorsProviderGains…` +
  `RoundClipInteractionTests.Round_Clip_Corner_Is_Grabbable…` — fail on `main` with this change unapplied.
  All other tests pass (incl. the 7 new recording tests).
- **App running locks `ytLive.exe`** → build fails MSB3027 until the creator exits the app.
- **Startup diagnostics:** `%APPDATA%\ytLlive\startup.log` (`Helpers/AppLog.cs`).
- **Real-MainWindow tests MUST set `LayoutPathOverride`** — DB pollution wiped real data once.
- **Good Dog Rule:** ONE integration test per change; no feature branches pre-1.0.
- **Scope Lock:** declared list below; run `scripts/scope-check.sh` before committing.
- **Every feature change ships memory updates in the SAME commit** — `TASKS.md` status + this file.
- No `CODING.md`; conventions live in `AGENTS.md` + `ai.md`.

## Commit scope (declared)

`Services/Encoder/EncoderOptions.cs Services/Encoder/FfmpegArgs.cs Services/Encoder/FfmpegEncoder.cs
Services/Encoder/FramePump.cs Services/RecordingFile.cs Services/LayoutStore.cs
ViewModels/MainViewModel.cs MainWindow.xaml ytLive.Tests/FfmpegEncoderTests.cs
ytLive.Tests/FramePumpTests.cs ytLive.Tests/RecordingFileTests.cs
AGENTS.md TASKS.md ai.md HANDOFF.md MyMistakes.md schema.md README.md
docs/ytLlive-preview.jpg docs/ytLlive-preview.png(deleted)`

## Next steps

1. Creator to decide: commit + push this TASK 18 work unit (scope list above), or refine first
   (verify the rename + dual output in the running app before committing).
2. Continue queue: TASK 21 media source, TASK 22 audio sync offset.