name: release-gentoo

on:
  workflow_run:
    workflows: ["release-linux"]
    types: [completed]
  workflow_dispatch:
    inputs:
      version:
        description: "Version to publish (e.g. 1.2.0)"
        required: true
        type: string

concurrency:
  group: gentoo-overlay
  cancel-in-progress: false

permissions:
  contents: read

jobs:
  update-overlay:
    runs-on: ubuntu-latest
    if: ${{ github.event_name == 'workflow_dispatch' || (github.event.workflow_run.conclusion == 'success' && startsWith(github.event.workflow_run.head_branch, 'v') && !contains(github.event.workflow_run.head_branch, '-rc')) }}
    steps:
      - name: Checkout app repo
        uses: actions/checkout@v4

      - name: Determine version
        id: version
        env:
          EVENT_NAME: ${{ github.event_name }}
          WORKFLOW_HEAD_BRANCH: ${{ github.event.workflow_run.head_branch }}
          DISPATCH_VERSION: ${{ inputs.version }}
        run: |
          if [[ "$EVENT_NAME" == "workflow_run" ]]; then
            REF="$WORKFLOW_HEAD_BRANCH"
            if [[ ! "$REF" =~ ^v[0-9]+(\.[0-9]+){1,3}([.-][0-9A-Za-z.-]+)?$ ]]; then
              echo "Invalid tag: $REF"
              exit 1
            fi
            VERSION="${REF#v}"
          else
            VERSION="$DISPATCH_VERSION"
          fi
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
          echo "Version: $VERSION"

      - name: Clone overlay repo
        env:
          OVERLAY_PAT: ${{ secrets.APT_REPO_TOKEN }}
        run: |
          git clone "https://x-access-token:${OVERLAY_PAT}@github.com/vicrodh/qbz-overlay.git" /tmp/qbz-overlay
          cd /tmp/qbz-overlay
          git config user.name "GitHub Actions"
          git config user.email "actions@github.com"

      - name: Update binary ebuild
        env:
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          cd /tmp/qbz-overlay/media-sound/qbz-bin

          # Remove old version ebuilds (keep metadata.xml)
          rm -f qbz-bin-*.ebuild

          # Copy template from app repo and update version
          cp "${{ github.workspace }}/packaging/gentoo/qbz-bin.ebuild.template" "qbz-bin-${VERSION}.ebuild"

          echo "=== qbz-bin-${VERSION}.ebuild ==="
          cat "qbz-bin-${VERSION}.ebuild"

      - name: Update source ebuild
        env:
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          cd /tmp/qbz-overlay/media-sound/qbz

          # Remove old version ebuilds (keep metadata.xml)
          rm -f qbz-*.ebuild

          # Copy template from app repo and update version
          cp "${{ github.workspace }}/packaging/gentoo/qbz.ebuild.template" "qbz-${VERSION}.ebuild"

          echo "=== qbz-${VERSION}.ebuild ==="
          cat "qbz-${VERSION}.ebuild"

      - name: Generate Manifests
        env:
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          # Helper: compute BLAKE2B and SHA512 for a file, output Manifest line
          manifest_line() {
            local type="$1" name="$2" file="$3"
            local size blake2b sha512
            size=$(stat -c%s "$file")
            blake2b=$(b2sum "$file" | awk '{print $1}')
            sha512=$(sha512sum "$file" | awk '{print $1}')
            echo "${type} ${name} ${size} BLAKE2B ${blake2b} SHA512 ${sha512}"
          }

          # --- qbz-bin Manifest ---
          cd /tmp/qbz-overlay/media-sound/qbz-bin
          MANIFEST=""

          # Download DIST files and hash them
          for arch_pair in "amd64:amd64" "aarch64:arm64"; do
            arch="${arch_pair%%:*}"
            dist_name="qbz_${VERSION}_${arch}.tar.gz"
            url="https://github.com/vicrodh/qbz/releases/download/v${VERSION}/${dist_name}"
            echo "Downloading ${dist_name}..."
            if curl -sLf "$url" -o "/tmp/${dist_name}"; then
              MANIFEST+="$(manifest_line DIST "$dist_name" "/tmp/${dist_name}")"$'\n'
            else
              echo "WARNING: ${dist_name} not found at ${url}, skipping"
            fi
          done

          # Hash the ebuild itself
          MANIFEST+="$(manifest_line EBUILD "qbz-bin-${VERSION}.ebuild" "qbz-bin-${VERSION}.ebuild")"$'\n'

          # Hash metadata.xml
          MANIFEST+="$(manifest_line MISC "metadata.xml" "metadata.xml")"$'\n'

          echo "$MANIFEST" > Manifest
          echo "=== qbz-bin Manifest ==="
          cat Manifest

          # --- qbz (source) Manifest ---
          cd /tmp/qbz-overlay/media-sound/qbz
          MANIFEST=""

          # Download source tarball
          dist_name="qbz-${VERSION}.tar.gz"
          url="https://github.com/vicrodh/qbz/archive/refs/tags/v${VERSION}.tar.gz"
          echo "Downloading source tarball..."
          if curl -sLf "$url" -o "/tmp/${dist_name}"; then
            MANIFEST+="$(manifest_line DIST "$dist_name" "/tmp/${dist_name}")"$'\n'
          else
            echo "WARNING: source tarball not found, skipping"
          fi

          # Hash the ebuild
          MANIFEST+="$(manifest_line EBUILD "qbz-${VERSION}.ebuild" "qbz-${VERSION}.ebuild")"$'\n'

          # Hash metadata.xml
          MANIFEST+="$(manifest_line MISC "metadata.xml" "metadata.xml")"$'\n'

          echo "$MANIFEST" > Manifest
          echo "=== qbz Manifest ==="
          cat Manifest

      - name: Commit and push
        env:
          VERSION: ${{ steps.version.outputs.version }}
        run: |
          cd /tmp/qbz-overlay
          git add -A
          if git diff --cached --quiet; then
            echo "No changes to commit"
            exit 0
          fi
          git commit -m "Update to v${VERSION}"
          git push