name: "GoReleaser"
description: "Run GoReleaser with optional split/merge for CGO builds"

inputs:
  version-tag:
    description: "Version tag to release"
    required: true
  mode:
    description: "Mode: 'full' (single runner), 'split' (matrix build), 'merge' (combine split builds)"
    required: false
    default: "full"
  cgo-enabled:
    description: "Enable CGO"
    required: false
    default: "0"
  github-token:
    description: "GitHub token"
    required: true
  goreleaser-key:
    description: "GoReleaser Pro license key (for split/merge)"
    required: false
    default: ""
  homebrew-tap-token:
    description: "Homebrew tap token (optional)"
    required: false
    default: ""

runs:
  using: "composite"
  steps:
    - name: Create tag
      shell: bash
      run: |
        git config user.name "github-actions[bot]"
        git config user.email "github-actions[bot]@users.noreply.github.com"
        # Fold any build-time source changes (e.g. version stamping by a
        # repo-local workflow-prepare.sh) into the tagged commit. This is needed
        # so consumers that fetch the tag's SOURCE — e.g. Yaegi-interpreted
        # Traefik plugins, which Traefik never compiles — see the stamped value,
        # and so GoReleaser's `release --clean` sees a clean working tree. The
        # commit is reachable only via the tag; the branch is NOT advanced, so a
        # source-tree placeholder (e.g. 0.0.0-dev on main) is preserved. No-op
        # when the tree is already clean → unchanged for repos that don't stamp.
        if ! git diff --quiet || ! git diff --cached --quiet; then
          git add -A
          git commit -m "chore(release): ${{ inputs.version-tag }}"
        fi
        git tag -a ${{ inputs.version-tag }} -m "Release ${{ inputs.version-tag }}" || true
        if [[ "${{ inputs.mode }}" != "split" ]]; then
          git push origin ${{ inputs.version-tag }} || true
        fi

    - name: Install cosign
      uses: sigstore/cosign-installer@v4.1.2

    - name: Run GoReleaser (full)
      if: inputs.mode == 'full'
      uses: goreleaser/goreleaser-action@v7
      with:
        distribution: goreleaser
        version: "~> v2"
        args: release --clean
      env:
        GITHUB_TOKEN: ${{ inputs.github-token }}
        HOMEBREW_TAP_TOKEN: ${{ inputs.homebrew-tap-token }}
        CGO_ENABLED: ${{ inputs.cgo-enabled }}

    - name: Run GoReleaser Pro (split)
      if: inputs.mode == 'split'
      uses: goreleaser/goreleaser-action@v7
      with:
        distribution: goreleaser-pro
        version: "~> v2"
        args: release --clean --split
      env:
        GITHUB_TOKEN: ${{ inputs.github-token }}
        GORELEASER_KEY: ${{ inputs.goreleaser-key }}
        CGO_ENABLED: ${{ inputs.cgo-enabled }}

    - name: Run GoReleaser Pro (merge)
      if: inputs.mode == 'merge'
      uses: goreleaser/goreleaser-action@v7
      with:
        distribution: goreleaser-pro
        version: "~> v2"
        args: continue --merge
      env:
        GITHUB_TOKEN: ${{ inputs.github-token }}
        GORELEASER_KEY: ${{ inputs.goreleaser-key }}