name: Publish to AUR

on:
  workflow_run:
    workflows: ["Release"]
    types: [completed]

jobs:
  aur:
    runs-on: ubuntu-latest
    if: github.event.workflow_run.conclusion == 'success'
    steps:
      - name: Checkout
        uses: actions/checkout@v7.0.0
        with:
          ref: ${{ github.event.workflow_run.head_branch }}

      - name: Extract version
        id: version
        run: |
          TAG="${{ github.event.workflow_run.head_branch }}"
          echo "pkgver=${TAG#v}" >> "$GITHUB_OUTPUT"

      - name: Generate PKGBUILD
        env:
          PKGVER: ${{ steps.version.outputs.pkgver }}
          REPO: ${{ github.repository }}
        run: |
          SOURCE_URL="https://github.com/${REPO}/archive/refs/tags/v${PKGVER}.tar.gz"
          SHA256=$(curl -sL "$SOURCE_URL" | sha256sum | cut -d' ' -f1)

          cat > PKGBUILD <<'HEREDOC'
          # Maintainer: bjarneo <https://github.com/bjarneo>
          pkgname=cliamp
          pkgver=PKGVER_PLACEHOLDER
          pkgrel=1
          pkgdesc='A retro terminal music player inspired by Winamp 2.x'
          arch=('x86_64' 'aarch64')
          url='https://github.com/bjarneo/cliamp'
          license=('MIT')
          depends=('alsa-lib' 'flac' 'libvorbis' 'libogg' 'ffmpeg' 'yt-dlp')
          optdepends=('pipewire-alsa: audio output on PipeWire systems'
                      'pulseaudio-alsa: audio output on PulseAudio systems')
          makedepends=('go')
          source=("${pkgname}-${pkgver}.tar.gz::https://github.com/bjarneo/cliamp/archive/refs/tags/v${pkgver}.tar.gz")
          sha256sums=('SHA256_PLACEHOLDER')

          build() {
              cd "${pkgname}-${pkgver}"
              export CGO_ENABLED=1
              go build -trimpath -buildmode=pie \
                  -ldflags="-s -w -X main.version=v${pkgver} -linkmode=external" \
                  -o cliamp .
          }

          package() {
              cd "${pkgname}-${pkgver}"
              install -Dm755 cliamp "${pkgdir}/usr/bin/cliamp"
              install -Dm644 cliamp.desktop "${pkgdir}/usr/share/applications/cliamp.desktop"
              install -Dm644 Cliamp.png "${pkgdir}/usr/share/icons/hicolor/512x512/apps/cliamp.png"
              install -Dm644 Cliamp.png "${pkgdir}/usr/share/pixmaps/cliamp.png"
              install -Dm644 LICENSE "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
          }
          HEREDOC

          sed -i 's/^          //' PKGBUILD
          sed -i "s|PKGVER_PLACEHOLDER|${PKGVER}|" PKGBUILD
          sed -i "s|SHA256_PLACEHOLDER|${SHA256}|" PKGBUILD

          cat PKGBUILD

      - name: Publish to AUR
        env:
          AUR_SSH_KEY: ${{ secrets.AUR_SSH_PRIVATE_KEY }}
          AUR_USERNAME: ${{ secrets.AUR_USERNAME }}
          AUR_EMAIL: ${{ secrets.AUR_EMAIL }}
          PKGVER: ${{ steps.version.outputs.pkgver }}
        run: |
          # Setup SSH
          mkdir -p ~/.ssh
          echo "$AUR_SSH_KEY" > ~/.ssh/aur
          chmod 600 ~/.ssh/aur
          ssh-keyscan -t rsa,ecdsa,ed25519 aur.archlinux.org >> ~/.ssh/known_hosts 2>/dev/null
          cat >> ~/.ssh/config <<EOF
          Host aur.archlinux.org
            IdentityFile ~/.ssh/aur
            User aur
          EOF

          # Clone AUR repo
          git clone ssh://aur@aur.archlinux.org/cliamp.git aur-repo
          cd aur-repo

          git config user.name "$AUR_USERNAME"
          git config user.email "$AUR_EMAIL"

          # Copy PKGBUILD and generate .SRCINFO
          cp ../PKGBUILD .
          docker run --rm -v "$PWD/PKGBUILD:/PKGBUILD:ro" archlinux:base bash -c \
            'pacman -Sy --noconfirm pacman-contrib >&2 && cp /PKGBUILD /tmp/ && cd /tmp && chown nobody PKGBUILD && runuser -u nobody -- makepkg --printsrcinfo' > .SRCINFO

          # Commit and push
          git add PKGBUILD .SRCINFO
          if git diff --cached --quiet; then
            echo "No changes to commit"
          else
            git commit -m "Update to v${PKGVER}"
            git push
          fi