name: Docs

on:
  push:
    branches:
    - main
  pull_request:
    branches:
    - main
  schedule:
  - cron: "0 2 * * *"

jobs:
  build:
    name: Build website artifacts
    runs-on: ubuntu-latest
    steps:
    - name: Checkout uutils.github.io Repository
      uses: actions/checkout@v6
      with:
        repository: uutils/uutils.github.io
        path: './uutils.github.io'
        fetch-depth: 0

    - name: Checkout Coreutils Repository
      uses: actions/checkout@v6
      with:
        repository: uutils/coreutils
        path: './coreutils'
        fetch-depth: 0

    - name: Checkout Coreutils L10n Repository
      uses: actions/checkout@v6
      with:
        repository: uutils/coreutils-l10n
        path: './coreutils-l10n'
        fetch-depth: 0

    - name: Checkout Findutils Repository
      uses: actions/checkout@v6
      with:
        repository: uutils/findutils
        path: './findutils'
        fetch-depth: 0

    - name: Checkout Grep Repository
      uses: actions/checkout@v6
      with:
        repository: uutils/grep
        path: './grep'
        fetch-depth: 0

    - name: Install `rust` toolchain
      uses: dtolnay/rust-toolchain@stable
      with:
        targets: wasm32-wasip1

    - name: Install system deps
      run: |
        sudo apt update
        sudo apt install libacl1-dev libselinux1-dev libsystemd-dev
        pip install babel

    - name: Install necessary tools (mdbook and mdbook-toc)
      uses: taiki-e/install-action@v2
      with:
        tool: mdbook@0.5.0,mdbook-toc@0.15.3

    - name: Copy l10n locales into coreutils
      run: |
        # Only copy locales into utilities that already exist in coreutils
        # Exclude en-US.ftl to preserve the coreutils English originals
        for util_dir in coreutils-l10n/src/uu/*/; do
          util=$(basename "$util_dir")
          if [ -d "coreutils/src/uu/$util/locales" ]; then
            for ftl in "$util_dir"/locales/*.ftl; do
              [ -f "$ftl" ] || continue
              [ "$(basename "$ftl")" = "en-US.ftl" ] && continue
              cp "$ftl" "coreutils/src/uu/$util/locales/"
            done
          fi
        done
        # Copy uucore l10n files, excluding en-US.ftl
        if [ -d "coreutils-l10n/src/uucore/locales" ]; then
          for ftl in coreutils-l10n/src/uucore/locales/*.ftl; do
            [ -f "$ftl" ] || continue
            [ "$(basename "$ftl")" = "en-US.ftl" ] && continue
            cp "$ftl" "coreutils/src/uucore/locales/"
          done
        fi

    - name: Patch mdbook theme with language selector
      run: |
        uutils.github.io/scripts/patch-mdbook-theme.sh coreutils/docs coreutils-l10n

    - name: Build Coreutils Docs
      run: |
        cd coreutils
        # Download and repack tldr zip: uudoc expects pages/common/ prefix
        curl -sfL https://github.com/tldr-pages/tldr/releases/download/v2.3/tldr-pages.zip -o /tmp/tldr-raw.zip || true
        if [ -f /tmp/tldr-raw.zip ]; then
          mkdir -p /tmp/tldr-repack/pages
          cd /tmp/tldr-repack && unzip -o /tmp/tldr-raw.zip -d pages/ > /dev/null
          zip -r "$OLDPWD/docs/tldr.zip" pages/ > /dev/null
          cd "$OLDPWD"
        fi
        cargo run --bin uudoc --all-features
        cd docs
        # Remove deprecated 'multilingual' field unsupported by newer mdbook
        sed -i '/^multilingual/d' book.toml
        # Strip the legacy FA4 `fa` class from uudoc-generated platform icons
        # so mdbook 0.5's Font Awesome parser picks up the `fa-brands` family
        # instead of defaulting to `regular` and warning about linux/windows/apple.
        find src/utils -name '*.md' -exec sed -i 's|class="fa fa-brands |class="fa-brands |g' {} +
        mdbook build

    - name: Build Coreutils Docs (translations)
      run: |
        uutils.github.io/scripts/build-docs-l10n.sh coreutils

    - name: Build Findutils Docs
      run: |
        cd findutils/docs
        # Remove deprecated 'multilingual' field unsupported by newer mdbook
        sed -i '/^multilingual/d' book.toml
        mdbook build

    - name: Build uutils WASM binary
      run: |
        cd coreutils
        # Build the multicall binary for WASI target
        # Use --no-default-features to avoid platform-specific dependencies
        cargo build --release --target wasm32-wasip1 -p coreutils --no-default-features --features feat_wasm
        if [ -f target/wasm32-wasip1/release/coreutils.wasm ]; then
          mkdir -p ../uutils.github.io/static/wasm
          cp target/wasm32-wasip1/release/coreutils.wasm ../uutils.github.io/static/wasm/uutils.wasm
          # Optimize WASM size if wasm-opt is available
          if command -v wasm-opt &> /dev/null; then
            wasm-opt -Oz ../uutils.github.io/static/wasm/uutils.wasm -o ../uutils.github.io/static/wasm/uutils.wasm
          fi
          echo "WASM binary size: $(du -h ../uutils.github.io/static/wasm/uutils.wasm | cut -f1)"
          # Generate the list of available locales from .ftl files
          locales=$(find src/uu/*/locales src/uucore/locales -name '*.ftl' 2>/dev/null \
            | sed 's|.*/||; s|\.ftl$||' | sort -u | paste -sd, -)
          echo "const WASM_LOCALES = [$(echo "$locales" | sed 's/[^,]*/\"&\"/g')];" \
            > ../uutils.github.io/static/wasm/locales.js
          echo "Available locales: $locales"
          # Generate the list of available commands from the feat_wasm feature
          # in Cargo.toml so the playground stays in sync with the WASM build.
          # HIDDEN_CMDS: utilities that ship in the binary but we don't want to
          # advertise in the playground (e.g. `yes` produces infinite output
          # that just spams the terminal).
          HIDDEN_CMDS='^(false|true|yes)$'
          commands=$(sed -n '/^feat_wasm = \[/,/^\]/p' Cargo.toml \
            | grep -oE '"[a-zA-Z0-9_]+"' | tr -d '"' \
            | sort -u | grep -vE "$HIDDEN_CMDS" | paste -sd, -)
          echo "const WASM_COMMANDS = [$(echo "$commands" | sed 's/[^,]*/\"&\"/g')];" \
            > ../uutils.github.io/static/wasm/commands.js
          echo "Available commands: $commands"
          # Record the coreutils commit used to build the WASM binary
          commit_hash=$(git rev-parse HEAD)
          commit_short=$(git rev-parse --short HEAD)
          commit_date=$(git show -s --format=%cI HEAD)
          # Record the uutils.github.io commit the site was built from
          site_hash=$(git -C ../uutils.github.io rev-parse HEAD)
          site_short=$(git -C ../uutils.github.io rev-parse --short HEAD)
          site_date=$(git -C ../uutils.github.io show -s --format=%cI HEAD)
          {
            echo "const UUTILS_WASM_VERSION = {"
            echo "  commit: \"${commit_hash}\","
            echo "  short: \"${commit_short}\","
            echo "  date: \"${commit_date}\""
            echo "};"
            echo "const SITE_VERSION = {"
            echo "  commit: \"${site_hash}\","
            echo "  short: \"${site_short}\","
            echo "  date: \"${site_date}\""
            echo "};"
          } > ../uutils.github.io/static/wasm/version.js
          echo "uutils WASM build: ${commit_short} (${commit_date})"
          echo "site build: ${site_short} (${site_date})"
        fi

    - name: Build grep WASM binary
      run: |
        # uutils grep is a standalone binary (not part of the coreutils
        # multicall) and depends on the Oniguruma C library (onig_sys), so the
        # WASM build needs a WASI sysroot to compile the bundled C sources.
        WASI_SDK_VERSION=25
        WASI_SDK_DIR="wasi-sdk-${WASI_SDK_VERSION}.0-x86_64-linux"
        curl -sL "https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-${WASI_SDK_VERSION}/${WASI_SDK_DIR}.tar.gz" | tar xz
        export WASI_SDK_PATH="$PWD/${WASI_SDK_DIR}"
        export CC_wasm32_wasip1="$WASI_SDK_PATH/bin/clang"
        export CFLAGS_wasm32_wasip1="--sysroot=$WASI_SDK_PATH/share/wasi-sysroot"
        cd grep
        cargo build --release --target wasm32-wasip1 --bin grep
        if [ -f target/wasm32-wasip1/release/grep.wasm ]; then
          mkdir -p ../uutils.github.io/static/wasm
          cp target/wasm32-wasip1/release/grep.wasm ../uutils.github.io/static/wasm/grep.wasm
          # Optimize WASM size if wasm-opt is available
          if command -v wasm-opt &> /dev/null; then
            wasm-opt -Oz ../uutils.github.io/static/wasm/grep.wasm -o ../uutils.github.io/static/wasm/grep.wasm
          fi
          echo "grep WASM binary size: $(du -h ../uutils.github.io/static/wasm/grep.wasm | cut -f1)"
          # Advertise grep in the playground's command list. grep ships as its
          # own WASM module, so it isn't picked up by the coreutils feat_wasm
          # scan above; append it to the generated list here.
          commands_js=../uutils.github.io/static/wasm/commands.js
          if [ -f "$commands_js" ]; then
            existing=$(sed -n 's/^const WASM_COMMANDS = \[\(.*\)\];$/\1/p' "$commands_js")
            echo "const WASM_COMMANDS = [${existing}, \"grep\"];" > "$commands_js"
          else
            echo 'const WASM_COMMANDS = ["grep"];' > "$commands_js"
          fi
          # Record the grep commit used to build its WASM module so the
          # playground can show it alongside the coreutils build.
          grep_hash=$(git rev-parse HEAD)
          grep_short=$(git rev-parse --short HEAD)
          grep_date=$(git show -s --format=%cI HEAD)
          {
            echo "const UUTILS_GREP_VERSION = {"
            echo "  commit: \"${grep_hash}\","
            echo "  short: \"${grep_short}\","
            echo "  date: \"${grep_date}\""
            echo "};"
          } >> ../uutils.github.io/static/wasm/version.js
          echo "grep WASM build: ${grep_short} (${grep_date})"
        fi

    - name: Run Zola
      uses: shalzz/zola-deploy-action@v0.22.1
      env:
        BUILD_DIR: uutils.github.io
        BUILD_ONLY: true

    - name: Collect results into `public` folder
      run: |
        cp -r uutils.github.io/public public
        cp -r coreutils/docs/book public/coreutils/docs
        cp -r findutils/docs/book public/findutils/docs
        # Copy translated docs to /coreutils/docs-{lang}/
        for lang_dir in coreutils/docs/book-*/; do
          [ -d "$lang_dir" ] || continue
          lang=$(basename "$lang_dir" | sed 's/^book-//')
          cp -r "$lang_dir" "public/coreutils/docs-${lang}"
        done

    - name: Run playground JS tests
      run: |
        npm install puppeteer@24
        node uutils.github.io/scripts/run-tests.js --dir public --port 8080

    - name: Remove test files from deploy output
      run: rm -f public/js/wasm-terminal.test.html

    - name: Upload artifact for checking the output
      uses: actions/upload-artifact@v7
      with:
        path: ./public

    - name: Upload artifact for pages
      uses: actions/upload-pages-artifact@v5
      with:
        path: ./public

  # dev-docs:
  #   name: generate the dev doc
  #   runs-on: ubuntu-latest
  #   steps:
  #   - name: Checkout repository
  #     uses: actions/checkout@v4
  #     with:
  #       repository: uutils/coreutils
  #       path: './coreutils'
  #       fetch-depth: 0

  #   - name: Install `rust` toolchain
  #     uses: actions-rs/toolchain@v1
  #     with:
  #       toolchain: stable
  #       default: true
  #       profile: minimal

  #   - name: Build dev documentation
  #     run: |
  #       cd coreutils
  #       cargo doc --no-deps --all-features --workspace

  #   - name: Deploy Docs
  #     uses: peaceiris/actions-gh-pages@v3
  #     with:
  #       github_token: ${{ secrets.GITHUB_TOKEN }}
  #       publish_dir: ./coreutils/target/doc
  #       destination_dir: coreutils/dev/

  # build-report:
  #   name: generate the build report
  #   runs-on: ubuntu-latest
  #   steps:
  #   - name: Checkout repository
  #     uses: actions/checkout@v4
  #     with:
  #       repository: uutils/coreutils
  #       path: './coreutils'
  #       fetch-depth: 0

  #   - name: Install `rust` toolchain
  #     uses: actions-rs/toolchain@v1
  #     with:
  #       toolchain: nightly
  #       default: true
  #       profile: minimal

  #   - name: Build report
  #     run: |
  #       cd coreutils
  #       cargo +nightly build --timings=html  -Zunstable-options

  #   - name: Deploy build report
  #     uses: peaceiris/actions-gh-pages@v3
  #     with:
  #       github_token: ${{ secrets.GITHUB_TOKEN }}
  #       publish_dir: ./coreutils/target/cargo-timings/
  #       destination_dir: cargo-timings/

  # Deployment job
  deploy:
    permissions:
      contents: read
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    runs-on: ubuntu-latest
    needs: build
    if: (github.event_name == 'push' && github.ref == 'refs/heads/main') || github.event_name == 'schedule'
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v5