name: Build and Deploy Firmware

on:
  push:
    branches:
      - main
    tags:
      - 'v*'

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

jobs:
  build-and-deploy:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Install PlatformIO
        run: pip install platformio

      - name: Build T-Deck firmware (NimBLE)
        run: pio run -e tdeck

      - name: Determine version string
        id: version
        run: |
          if [[ "$GITHUB_REF" == refs/tags/v* ]]; then
            echo "VERSION=${GITHUB_REF#refs/tags/}" >> "$GITHUB_OUTPUT"
          else
            echo "VERSION=dev-${GITHUB_SHA::7}" >> "$GITHUB_OUTPUT"
          fi

      - name: Copy firmware binaries
        run: |
          mkdir -p docs/flasher/firmware
          cp .pio/build/tdeck/bootloader.bin docs/flasher/firmware/
          cp .pio/build/tdeck/partitions.bin docs/flasher/firmware/
          cp .pio/build/tdeck/firmware.bin docs/flasher/firmware/
          BOOT_APP0=$(find ~/.platformio -name "boot_app0.bin" | head -1)
          cp "$BOOT_APP0" docs/flasher/firmware/

          # For tagged releases, also deploy to a versioned path on GitHub Pages
          # so the flasher can fetch them same-origin (GitHub release downloads lack CORS)
          if [[ "$GITHUB_REF" == refs/tags/v* ]]; then
            TAG="${GITHUB_REF#refs/tags/}"
            mkdir -p "docs/flasher/firmware/releases/${TAG}"
            cp .pio/build/tdeck/bootloader.bin "docs/flasher/firmware/releases/${TAG}/"
            cp .pio/build/tdeck/partitions.bin "docs/flasher/firmware/releases/${TAG}/"
            cp .pio/build/tdeck/firmware.bin "docs/flasher/firmware/releases/${TAG}/"
            cp "$BOOT_APP0" "docs/flasher/firmware/releases/${TAG}/"
          fi

      - name: Download existing release assets for GitHub Pages
        run: |
          # Fetch all published releases and download their firmware assets
          # so versioned firmware is available same-origin on GitHub Pages.
          # With keep_files: true, each release only needs to be downloaded once.
          for tag in $(gh api repos/${{ github.repository }}/releases --jq '.[].tag_name'); do
            dir="docs/flasher/firmware/releases/${tag}"
            # Skip if we already have this version's firmware (e.g., current tagged build)
            if [ -f "${dir}/firmware.bin" ]; then
              echo "Skipping ${tag} — already present"
              continue
            fi
            mkdir -p "${dir}"
            echo "Downloading assets for ${tag}..."
            for asset in bootloader.bin partitions.bin boot_app0.bin firmware.bin; do
              url="https://github.com/${{ github.repository }}/releases/download/${tag}/${asset}"
              if curl -sL -o "${dir}/${asset}" -w '%{http_code}' "${url}" | grep -qx 200; then
                echo "  ${asset} OK"
              else
                rm -f "${dir}/${asset}"
                echo "  ${asset} not found"
              fi
            done
          done
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Generate manifest files
        run: |
          VERSION="${{ steps.version.outputs.VERSION }}"
          cat > docs/flasher/manifest-install.json << EOF
          {
            "name": "Pyxis T-Deck",
            "version": "${VERSION}",
            "new_install_prompt_erase": false,
            "builds": [
              {
                "chipFamily": "ESP32-S3",
                "parts": [
                  { "path": "firmware/bootloader.bin", "offset": 0 },
                  { "path": "firmware/partitions.bin", "offset": 32768 },
                  { "path": "firmware/boot_app0.bin", "offset": 57344 },
                  { "path": "firmware/firmware.bin", "offset": 65536 }
                ]
              }
            ]
          }
          EOF
          cat > docs/flasher/manifest-update.json << EOF
          {
            "name": "Pyxis T-Deck",
            "version": "${VERSION}",
            "new_install_prompt_erase": false,
            "builds": [
              {
                "chipFamily": "ESP32-S3",
                "parts": [
                  { "path": "firmware/firmware.bin", "offset": 65536 }
                ]
              }
            ]
          }
          EOF

      - name: Generate root landing page from README
        run: |
          mkdir -p docs/root
          pip install markdown
          python3 -c "
          import markdown, pathlib
          md = pathlib.Path('README.md').read_text()
          body = markdown.markdown(md, extensions=['fenced_code', 'tables'])
          html = '''<!DOCTYPE html>
          <html lang=\"en\">
          <head>
          <meta charset=\"UTF-8\">
          <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">
          <title>Pyxis — LXMF Messenger for T-Deck</title>
          <style>
            body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
                   max-width: 800px; margin: 0 auto; padding: 2rem 1rem; line-height: 1.6;
                   background: #0f172a; color: #e2e8f0; }
            a { color: #3b82f6; }
            h1, h2 { color: #3b82f6; }
            code { background: rgba(255,255,255,0.1); padding: 0.15em 0.4em; border-radius: 4px; font-size: 0.9em; }
            .nav { text-align: center; margin: 2rem 0; }
            .nav a { display: inline-block; padding: 0.75rem 1.5rem; background: #3b82f6; color: white;
                     text-decoration: none; border-radius: 8px; margin: 0.5rem; font-weight: 500; }
            .nav a:hover { background: #2563eb; }
          </style>
          </head>
          <body>
          ''' + body + '''
          <div class=\"nav\">
            <a href=\"flasher/\">Web Flasher</a>
            <a href=\"https://github.com/torlando-tech/pyxis\">GitHub</a>
            <a href=\"https://github.com/torlando-tech/pyxis/releases\">Releases</a>
          </div>
          </body></html>'''
          pathlib.Path('docs/root/index.html').write_text(html)
          "

      - name: Deploy root landing page
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./docs/root
          keep_files: true

      - name: Deploy flasher to GitHub Pages
        uses: peaceiris/actions-gh-pages@v4
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./docs/flasher
          destination_dir: flasher
          keep_files: true

      - name: Create GitHub Release
        if: startsWith(github.ref, 'refs/tags/v')
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.version.outputs.VERSION }}
          name: ${{ steps.version.outputs.VERSION }}
          files: |
            docs/flasher/firmware/bootloader.bin
            docs/flasher/firmware/partitions.bin
            docs/flasher/firmware/boot_app0.bin
            docs/flasher/firmware/firmware.bin
          generate_release_notes: true
          draft: true