name: Release

on:
  push:
    tags:
      - "v*"
  workflow_dispatch:
    inputs:
      version:
        description: "Release version, for example 0.1.0"
        required: true
        default: "0.1.0"

permissions:
  contents: write

jobs:
  macos-arm64-dmg:
    name: Build macOS ARM64 DMG
    runs-on: macos-26

    steps:
      - name: Check out repository
        uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: Resolve version
        id: version
        shell: bash
        run: |
          if [[ "${GITHUB_REF_TYPE}" == "tag" ]]; then
            VERSION="${GITHUB_REF_NAME#v}"
            TAG_NAME="${GITHUB_REF_NAME}"
          else
            VERSION="${{ inputs.version }}"
            TAG_NAME="v${VERSION}"
          fi

          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
          echo "tag_name=$TAG_NAME" >> "$GITHUB_OUTPUT"
          echo "Version: $VERSION"

      - name: Show build environment
        run: |
          uname -a
          swift --version
          xcodebuild -version
          xcode-select -p
          xcrun --sdk macosx --show-sdk-version

      - name: Verify macOS 26 SDK
        shell: bash
        run: |
          SDK_VERSION="$(xcrun --sdk macosx --show-sdk-version)"
          SDK_MAJOR="${SDK_VERSION%%.*}"

          if [[ "$SDK_MAJOR" != "26" ]]; then
            echo "Expected macOS 26 SDK, got macOS $SDK_VERSION" >&2
            exit 1
          fi

      - name: Install dependencies
        run: brew install aria2 dylibbundler

      - name: Fetch media engines
        run: |
          mkdir -p Sources/Firelink

          # Download latest yt-dlp for macOS
          curl -fsSL https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp_macos -o Sources/Firelink/yt-dlp
          chmod +x Sources/Firelink/yt-dlp

          # Download latest FFmpeg release build for macOS ARM64 from Martin Riedl's build server
          curl -fsSL "https://ffmpeg.martin-riedl.de/redirect/latest/macos/arm64/release/ffmpeg.zip" -o ffmpeg.zip
          unzip -q -o ffmpeg.zip -d Sources/Firelink
          rm ffmpeg.zip
          chmod +x Sources/Firelink/ffmpeg
          test -x Sources/Firelink/yt-dlp
          test -x Sources/Firelink/ffmpeg

      - name: Build app bundle
        env:
          MARKETING_VERSION: ${{ steps.version.outputs.version }}
          BUILD_NUMBER: ${{ github.run_number }}
        run: Scripts/create_app_bundle.sh

      - name: Verify ARM64 binary
        run: |
          file build/Firelink.app/Contents/MacOS/Firelink
          lipo -archs build/Firelink.app/Contents/MacOS/Firelink | grep -qx arm64
          codesign --verify --deep --strict build/Firelink.app

      - name: Create DMG
        env:
          VERSION: ${{ steps.version.outputs.version }}
          ARCH: arm64
        run: Scripts/create_dmg.sh

      - name: Upload workflow artifact
        uses: actions/upload-artifact@v7
        with:
          name: Firelink-${{ steps.version.outputs.version }}-mac-arm64-dmg
          path: dist/*.dmg
          if-no-files-found: error

      - name: Publish GitHub release
        if: github.ref_type == 'tag' || github.event_name == 'workflow_dispatch'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          TAG_NAME="${{ steps.version.outputs.tag_name }}"
          awk '/^## \['"$VERSION"'\]/{flag=1; next} /^## \[/{if(flag) exit} flag' CHANGELOG.md > release_notes.md
          test -s release_notes.md

          if gh release view "$TAG_NAME" >/dev/null 2>&1; then
            gh release upload "$TAG_NAME" dist/*.dmg --clobber
            gh release edit "$TAG_NAME" --notes-file release_notes.md
          else
            gh release create "$TAG_NAME" dist/*.dmg --title "$TAG_NAME" --notes-file release_notes.md --verify-tag
          fi

      - name: Update Sparkle appcast
        if: github.ref_type == 'tag' || github.event_name == 'workflow_dispatch'
        env:
          GH_TOKEN: ${{ github.token }}
          SPARKLE_ED_PRIVATE_KEY: ${{ secrets.SPARKLE_ED_PRIVATE_KEY }}
        run: |
          if [[ -z "${SPARKLE_ED_PRIVATE_KEY}" ]]; then
            echo "Missing SPARKLE_ED_PRIVATE_KEY repository secret; cannot update appcast.xml" >&2
            exit 1
          fi

          VERSION="${{ steps.version.outputs.version }}"
          TAG_NAME="${{ steps.version.outputs.tag_name }}"
          BUILD_NUMBER="${{ github.run_number }}"
          DMG_PATH="dist/Firelink-${VERSION}-mac-arm64.dmg"
          DMG_URL="https://github.com/nimbold/Firelink/releases/download/${TAG_NAME}/Firelink-${VERSION}-mac-arm64.dmg"
          RELEASE_NOTES_URL="https://github.com/nimbold/Firelink/releases/tag/${TAG_NAME}"
          PUB_DATE="$(LC_ALL=C date -u '+%a, %d %b %Y %H:%M:%S +0000')"

          SIGN_OUTPUT="$(printf '%s' "$SPARKLE_ED_PRIVATE_KEY" | .build/artifacts/sparkle/Sparkle/bin/sign_update --ed-key-file - "$DMG_PATH")"
          ED_SIGNATURE="$(printf '%s\n' "$SIGN_OUTPUT" | sed -n 's/.*sparkle:edSignature="\([^"]*\)".*/\1/p' | head -1)"
          LENGTH="$(stat -f%z "$DMG_PATH" 2>/dev/null || stat -c%s "$DMG_PATH")"

          if [[ -z "$ED_SIGNATURE" || -z "$LENGTH" ]]; then
            echo "Failed to extract Sparkle signature or DMG length" >&2
            printf '%s\n' "$SIGN_OUTPUT" >&2
            exit 1
          fi

          git fetch origin main
          git checkout main
          git pull --ff-only origin main

          cat > appcast.xml <<XML
          <?xml version="1.0" encoding="utf-8"?>
          <rss version="2.0" xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" xmlns:dc="http://purl.org/dc/elements/1.1/">
            <channel>
              <title>Firelink Updates</title>
              <link>https://github.com/nimbold/Firelink</link>
              <description>Most recent updates for Firelink</description>
              <language>en</language>
              <item>
                <title>Version ${VERSION}</title>
                <sparkle:minimumSystemVersion>14.0</sparkle:minimumSystemVersion>
                <sparkle:hardwareRequirements>arm64</sparkle:hardwareRequirements>
                <sparkle:releaseNotesLink>${RELEASE_NOTES_URL}</sparkle:releaseNotesLink>
                <pubDate>${PUB_DATE}</pubDate>
                <enclosure url="${DMG_URL}"
                           sparkle:version="${BUILD_NUMBER}"
                           sparkle:shortVersionString="${VERSION}"
                           length="${LENGTH}"
                           type="application/octet-stream"
                           sparkle:edSignature="${ED_SIGNATURE}" />
              </item>
            </channel>
          </rss>
          XML

          xmllint --noout appcast.xml

          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add appcast.xml
          if git diff --cached --quiet; then
            echo "appcast.xml already up to date"
          else
            git commit -m "chore(release): update appcast for ${VERSION}"
            git push origin main
          fi