name: Deploy to Pages

# The mochi version of .github/workflows/deploy.yml, which it shadows.
# Three differences, all forced by the vault:
#
#   - the job container carries no Fortran compiler, which libflame's
#     configure insists on finding even though the WASM build compiles
#     everything with emcc, so gfortran is installed first;
#   - there is no cache service, so the libflame/BLIS libraries are rebuilt
#     from source on every run (libflame twice, BLIS twice) rather than
#     restored, which makes this the vault's slowest build;
#   - vite.config.ts already uses a relative base, so the site works at the
#     vault's serving path with no configuration.

on:
  push:
    branches:
      - main
  workflow_dispatch:

permissions:
  contents: read
  pages: write
  id-token: write

concurrency:
  group: "pages"
  cancel-in-progress: false

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      # libflame's configure refuses to run without a Fortran compiler on the
      # PATH, even though every object is compiled by emcc.
      - name: Install gfortran
        run: apt-get update && apt-get install -y --no-install-recommends gfortran

      - name: Install dependencies
        run: npm ci

      - name: Setup emsdk
        uses: mymindstorm/setup-emsdk@v14
        with:
          version: 5.0.4

      # libFLAME + BLIS are built from source (WASM) via the sibling
      # libflame2wasm repo — nothing prebuilt is committed here.
      - name: Clone libflame2wasm (sibling)
        run: |
          git clone --depth 1 https://github.com/concept-collection/libflame2wasm.git "$GITHUB_WORKSPACE/../libflame2wasm"
          LIBFLAME_DIR="$(cd "$GITHUB_WORKSPACE/../libflame2wasm" && pwd)"
          echo "LIBFLAME_DIR=$LIBFLAME_DIR" >> "$GITHUB_ENV"

      - name: Build libflame2wasm libraries
        run: bash "$LIBFLAME_DIR/build-all-wasm.sh"

      # Custom C kernels (wasm/dist/matmul.* + public/matmul/matmul_mt.*).
      - name: Build custom wasm kernels
        run: bash wasm/build-wasm.sh

      # libFLAME/BLIS matmul modules (public/matmul/matmul_blis_{st,mt}.*),
      # linked against the libraries built above.
      - name: Build BLIS wasm modules
        run: LIBFLAME="$LIBFLAME_DIR" bash blis/build-blis-wasm.sh

      - name: Build
        run: npm run build

      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: ./dist

  deploy:
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Deploy to Pages
        id: deployment
        uses: actions/deploy-pages@v4