# PR-gated continuous integration — runs backend pytest + frontend node:test
# + TypeScript typecheck on every pull request and push to main. Keeps the
# heavy 4-platform Tauri bundle off this path (that's release.yml on tag
# push) so PRs turn around in a few minutes instead of ~40.

name: CI

on:
  pull_request:
    branches: [main]
  push:
    branches: [main]
  workflow_dispatch:

permissions:
  contents: read

env:
  # Run all JavaScript actions on Node 24 (GH deprecates Node 20 in Sep 2026).
  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true

jobs:
  test:
    name: Tests (backend + frontend)
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v4

      - name: Setup Python 3.11
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      # enable-cache persists ~/.cache/uv across runs, keyed on uv.lock —
      # turns `uv sync` from ~45 s cold to ~5 s warm.
      - name: Install uv
        uses: astral-sh/setup-uv@v3
        with:
          enable-cache: true
          cache-dependency-glob: "uv.lock"

      # Node 22 is needed for --experimental-strip-types so node:test can
      # import .ts files directly from frontend/src/api/*.
      - name: Setup Node 22
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Setup Bun
        uses: oven-sh/setup-bun@v1

      # apt install ffmpeg is ~30 s every run; cache the resolved .debs.
      - name: System deps (ffmpeg)
        uses: awalsh128/cache-apt-pkgs-action@latest
        with:
          packages: ffmpeg
          version: 1.0

      - name: Install Python deps
        # `--all-extras` installs optional engine deps (e.g. `supertonic`)
        # so their tests can exercise the real import path, not the
        # "package not installed" fallback. Smoke job below stays on bare
        # `uv sync` because smoke only hits /health + fixture profiles.
        run: uv sync --all-extras

      - name: Run pytest
        run: uv run pytest tests/ -q --tb=short

      # Docs-drift CI gate (Phase 1 INST-06). The validator extracts code
      # blocks tagged `<!-- validate -->` from docs/install/*.md and asserts
      # each line appears in scripts/desktop-prod.sh after normalisation.
      # Its own correctness is enforced by tests/scripts/test_validate_install_docs.py
      # (checker B-5) — those tests run in the previous step.
      - name: Validate install docs against desktop-prod.sh
        run: python scripts/validate-install-docs.py

      # `backend/tests/` stubs core.config in sys.modules to avoid the heavy
      # main app import chain — that pollutes import state for other modules,
      # so it runs in its own pytest session to stay isolated from tests/.
      - name: Run pytest (backend/tests, isolated)
        run: uv run pytest backend/tests/ -q --tb=short

      # Cache ~/.bun/install/cache keyed on bun.lock — `bun install` drops
      # from ~15 s cold to near-instant on warm cache.
      - name: Cache bun deps
        uses: actions/cache@v4
        with:
          path: ~/.bun/install/cache
          key: ${{ runner.os }}-bun-${{ hashFiles('frontend/bun.lock', 'bun.lock') }}
          restore-keys: |
            ${{ runner.os }}-bun-

      - name: Install frontend deps
        working-directory: frontend
        run: bun install

      # checkJs is true in tsconfig for IDE feedback, but 947 pre-existing
      # JS errors remain. Override to false in CI so only .ts files block.
      # Sourced from `typecheck:ci` in frontend/package.json so the release
      # workflow runs an identical command — drift broke v0.3.x release runs.
      - name: Frontend typecheck
        working-directory: frontend
        run: bun run typecheck:ci

      - name: Run Vitest (frontend)
        working-directory: frontend
        run: bunx vitest run

      # Legacy node:test runner for tests/frontend/*.test.mjs
      - name: Run frontend node:test (legacy)
        working-directory: frontend
        run: node --experimental-strip-types --no-warnings --test ../tests/frontend/*.test.mjs

  # ── Cross-platform Tauri shell check ────────────────────────────────────
  # Catches platform-specific Rust regressions on PR (cfg(target_os=...)
  # gates, missing Windows/macOS deps, etc.) without spending the 15+ min
  # per-platform that a full `tauri build` takes. `cargo check` is the
  # lightest gate that exercises type-checking + linking for each target.
  # Full bundling stays in release.yml on tag push.
  tauri-cross-platform:
    name: Tauri shell check (${{ matrix.label }})
    needs: test
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: macos-14
            label: macOS
            rust_target: aarch64-apple-darwin
          - os: windows-2022
            label: Windows
            rust_target: x86_64-pc-windows-msvc
          - os: ubuntu-22.04
            label: Linux
            rust_target: x86_64-unknown-linux-gnu
    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v4

      - name: Setup Rust (stable)
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.rust_target }}

      # Per-target cache key so we don't conflict with the release matrix.
      - name: Rust cache
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: frontend/src-tauri -> target
          key: ${{ matrix.rust_target }}-check

      - name: Setup Bun
        uses: oven-sh/setup-bun@v1

      # Linux is the only host with non-trivial Tauri build deps —
      # webkit2gtk + libayatana-appindicator + xdo. Mirror release.yml.
      - name: Linux system deps
        if: runner.os == 'Linux'
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            libwebkit2gtk-4.1-dev \
            build-essential curl wget file libxdo-dev libssl-dev \
            libayatana-appindicator3-dev librsvg2-dev \
            libasound2-dev

      - name: Cache bun deps
        uses: actions/cache@v4
        with:
          path: ~/.bun/install/cache
          key: ${{ runner.os }}-bun-${{ hashFiles('frontend/bun.lock', 'bun.lock') }}
          restore-keys: |
            ${{ runner.os }}-bun-

      - name: Install frontend deps
        working-directory: frontend
        run: bun install

      # tauri-build's setup hook reads tauri.conf.json's `frontendDist`
      # ("../dist"), which only exists after a frontend build. Without this,
      # `cargo check` would fail on a fresh checkout because the embedded
      # asset map can't resolve.
      - name: Build frontend (for tauri.conf.json frontendDist)
        working-directory: frontend
        run: bun run build

      - name: Cargo check (Tauri shell)
        working-directory: frontend/src-tauri
        run: cargo check --target ${{ matrix.rust_target }} --message-format=short

  # ── Cross-platform Python runtime smoke (Phase 0 GATE-02) ───────────────
  # Loads the frozen tests/fixtures/omnivoice_data/ fixture and boots the
  # FastAPI app in-process via TestClient on macOS/Windows/Linux. Catches
  # platform-specific Python import / path bugs that the Linux-only `test`
  # job above misses. Narrow scope (tests/smoke/ only) — full pytest stays
  # on Linux until Phase 1's INST-01 lands setuptools for WhisperX.
  smoke-matrix:
    name: Smoke (${{ matrix.label }})
    needs: test
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: macos-14
            label: macOS
          - os: windows-2022
            label: Windows
          - os: ubuntu-22.04
            label: Linux
    runs-on: ${{ matrix.os }}
    timeout-minutes: 10
    env:
      # Restricted-network resilience (RESEARCH Pitfall #6) — keeps uv from
      # giving up on the first slow PyPI / python-build-standalone fetch.
      UV_HTTP_TIMEOUT: "120"
      UV_HTTP_RETRIES: "5"
    steps:
      - uses: actions/checkout@v4

      - name: Setup Python 3.11
        uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Install uv
        uses: astral-sh/setup-uv@v3
        with:
          enable-cache: true
          cache-dependency-glob: "uv.lock"

      # ffmpeg + libsndfile are needed by soundfile / audio fixtures even
      # though the silence WAV doesn't decode anything heavy — keeps test
      # collection from import-erroring on optional audio modules.
      - name: System deps (macOS)
        if: runner.os == 'macOS'
        run: brew install ffmpeg libsndfile || true

      - name: System deps (Windows)
        if: runner.os == 'Windows'
        shell: bash
        run: |
          choco install ffmpeg -y --no-progress
          ffmpeg -version

      - name: System deps (Linux)
        if: runner.os == 'Linux'
        uses: awalsh128/cache-apt-pkgs-action@latest
        with:
          packages: ffmpeg libsndfile1
          version: 1.0

      - name: Install Python deps
        run: uv sync

      - name: Run smoke tests
        run: uv run pytest tests/smoke/ -q --tb=short