name: CI

# Stream 11 verification pipeline.
#
# Two parallel jobs:
#   * cpp-tests      — builds nisps host C++ tests, builds nisps.wasm, runs
#                      the parity check, runs the lint script.
#   * manifold-tests — typechecks the React manifold app, runs bun unit
#                      tests, builds the production bundle, runs Playwright
#                      e2e tests.
#
# Firmware compilation is NOT included in this workflow. Arduino-cli +
# rp2040 board package add ~2 minutes per run, and the verification value
# is low compared to the time cost; firmware build is documented as a
# manual `scripts/build-firmware.sh` step in README.md / CLAUDE.md.

on:
  push:
    branches: [main, port-solidjs]
  pull_request:
    branches: [main, port-solidjs]
  workflow_dispatch:

jobs:
  cpp-tests:
    name: C++ tests + WASM + parity + lint
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Install build deps
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends \
            cmake ninja-build build-essential perl

      - name: Setup Emscripten
        # mymindstorm/setup-emsdk caches the SDK between runs. Pin to a
        # known-working version; bump deliberately.
        uses: mymindstorm/setup-emsdk@v14
        with:
          version: '3.1.69'
          actions-cache-folder: 'emsdk-cache'

      - name: Verify emcc
        run: emcc --version

      - name: Setup Node (for parity_wasm.mjs)
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Build C++ tests + run ctest
        env:
          # CI is non-interactive — turn off colour for log readability.
          CMAKE_BUILD_PARALLEL_LEVEL: '4'
        run: bash scripts/build-cpp-tests.sh

      # Freshness gate. manifold/public/nisps.{js,wasm} are TRACKED artifacts:
      # the VPS webhook builds only manifold/, so vite copies whatever is
      # committed into the production bundle. Prove the committed artifact
      # still agrees with the C++ we just built, BEFORE the rebuild below
      # overwrites it. A stale commit fails here instead of silently shipping.
      - name: WASM freshness gate (committed artifact vs native)
        env:
          NISPS_PARITY_NO_BUILD: '1'
        run: bash scripts/parity-check.sh

      - name: Build WASM
        env:
          # The script defaults to /usr/lib/emscripten/emcc; the runner gets
          # emcc on PATH via setup-emsdk. Override.
          EMCC: emcc
        run: bash scripts/build-wasm.sh

      - name: Parity check (native vs WASM)
        env:
          NISPS_PARITY_NO_BUILD: '1'  # we just built; don't re-build
        run: bash scripts/parity-check.sh

      - name: Lint
        run: bash scripts/lint-cpp.sh

      - name: Upload parity blobs on failure
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: parity-blobs
          path: |
            tests/cpp/parity_native.bin
            tests/cpp/parity_wasm.bin
          if-no-files-found: ignore
          retention-days: 7

  manifold-tests:
    name: Manifold typecheck + unit + e2e
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      # Enforces the "schema changes ship with regenerated C++ AND TypeScript
      # in the same change" rule. Regenerate from schemas/ and fail if the
      # committed outputs differ; then run the codegen golden test.
      - name: Codegen is committed and idempotent
        run: |
          cd codegen
          bun install --frozen-lockfile
          bun run generate.ts
          bun run generate-midi-devices.ts
          bun run tests/golden_test.ts
          cd ..
          GEN_DIRS="nisps/modes/generated nisps/midi/generated \
                    manifold/src/modes/generated manifold/src/midi-devices/generated"
          git add -N $GEN_DIRS
          if ! git diff --exit-code -- $GEN_DIRS; then
            echo "::error::Generated outputs are stale. Run codegen and commit the result." >&2
            exit 1
          fi

      - name: Install manifold deps
        working-directory: manifold
        run: bun install --frozen-lockfile

      - name: Typecheck
        working-directory: manifold
        run: bun run typecheck

      - name: Unit tests
        working-directory: manifold
        run: bun run test

      - name: Build manifold bundle
        working-directory: manifold
        run: bun run build

      - name: Install Playwright browsers
        working-directory: manifold
        run: bunx playwright install --with-deps chromium

      - name: Run Playwright tests
        working-directory: manifold
        run: bunx playwright test

      - name: Upload Playwright report on failure
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: playwright-report
          path: manifold/playwright-report/
          retention-days: 7