name: AUR Publish

on:
  workflow_call:
    inputs:
      tag:
        description: "Release tag to publish (for example: v0.0.1-rc.2)"
        required: true
        type: string
  workflow_dispatch:
    inputs:
      tag:
        description: "Release tag to publish (for example: v0.0.1-rc.2)"
        required: true
        type: string

permissions:
  contents: read

jobs:
  publish-aur:
    if: vars.AUR_PUBLISH_ENABLED == '1'
    runs-on: ubuntu-latest
    container: archlinux:base
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      TAG: ${{ inputs.tag }}
    steps:
      - uses: actions/checkout@v4

      - name: Install AUR packaging dependencies
        run: |
          pacman -Sy --noconfirm --needed base-devel git openssh curl github-cli

      - name: Wait for release assets
        run: |
          set -euo pipefail
          for attempt in $(seq 1 30); do
            if gh release view "$TAG" --repo "$GITHUB_REPOSITORY" >/dev/null 2>&1; then
              echo "release ${TAG} is available"
              exit 0
            fi
            sleep 10
          done
          echo "release ${TAG} was not found after waiting" >&2
          exit 1

      - name: Render AUR metadata from released assets
        run: |
          set -euo pipefail
          mkdir -p /tmp/release-input /tmp/release-metadata
          gh release download "$TAG" --repo "$GITHUB_REPOSITORY" \
            --pattern "openbitdo-${TAG}-linux-x86_64.tar.gz" \
            --pattern "openbitdo-${TAG}-linux-aarch64.tar.gz" \
            --pattern "openbitdo-${TAG}-macos-arm64.tar.gz" \
            --dir /tmp/release-input
          bash packaging/scripts/render_release_metadata.sh \
            "$TAG" \
            "$GITHUB_REPOSITORY" \
            /tmp/release-input \
            /tmp/release-metadata
          useradd -m builder
          chown -R builder:builder /tmp/release-metadata
          su builder -s /bin/bash -c "set -euo pipefail; \
            cd /tmp/release-metadata/aur/openbitdo-bin; \
            makepkg --printsrcinfo > .SRCINFO"

      - name: Upload rendered metadata (audit)
        uses: actions/upload-artifact@v4
        with:
          name: aur-rendered-metadata-${{ inputs.tag }}
          path: |
            /tmp/release-metadata/aur/openbitdo-bin/PKGBUILD
            /tmp/release-metadata/aur/openbitdo-bin/.SRCINFO
            /tmp/release-metadata/checksums.env

      - name: Configure SSH for AUR
        run: |
          if [[ -z "${{ secrets.AUR_USERNAME }}" ]]; then
            echo "missing required secret: AUR_USERNAME" >&2
            exit 1
          fi
          if [[ -z "${{ secrets.AUR_SSH_PRIVATE_KEY }}" ]]; then
            echo "missing required secret: AUR_SSH_PRIVATE_KEY" >&2
            exit 1
          fi
          mkdir -p "$HOME/.ssh"
          printf '%s\n' "${{ secrets.AUR_SSH_PRIVATE_KEY }}" > "$HOME/.ssh/aur"
          chmod 600 "$HOME/.ssh/aur"
          ssh-keyscan -H aur.archlinux.org >> "$HOME/.ssh/known_hosts"
          chmod 644 "$HOME/.ssh/known_hosts"

      - name: Publish openbitdo-bin
        env:
          GIT_SSH_COMMAND: ssh -i $HOME/.ssh/aur -o IdentitiesOnly=yes -o UserKnownHostsFile=$HOME/.ssh/known_hosts -o StrictHostKeyChecking=accept-new
        run: |
          set -euo pipefail
          publish_pkg() {
            local pkg="$1"
            local remote="aur@aur.archlinux.org:${pkg}.git"
            local tmp_root
            local workdir

            tmp_root="$(mktemp -d)"
            workdir="${tmp_root}/${pkg}"

            if git clone "$remote" "$workdir"; then
              echo "${pkg}: updated-existing"
            else
              echo "${pkg}: bootstrap-created"
              mkdir -p "$workdir"
              cd "$workdir"
              git init
              git remote add origin "$remote"
            fi

            cp "/tmp/release-metadata/aur/${pkg}/PKGBUILD" "${workdir}/PKGBUILD"
            cp "/tmp/release-metadata/aur/${pkg}/.SRCINFO" "${workdir}/.SRCINFO"

            cd "$workdir"
            git config user.name "openbitdo-ci"
            git config user.email "actions@users.noreply.github.com"
            git add PKGBUILD .SRCINFO

            if git diff --cached --quiet; then
              echo "${pkg}: no metadata changes"
              return 0
            fi

            git commit -m "Update ${pkg} package for ${TAG}"
            if git ls-remote --exit-code --heads origin >/dev/null 2>&1; then
              git push
            else
              git push -u origin HEAD:master
            fi
          }

          publish_pkg openbitdo-bin