name: Pre-Release

on:
  workflow_dispatch:
    inputs:
      tag:
        description: "Release tag (e.g. v0.4.0)"
        required: true
        type: string
      branch:
        description: "Branch to use (default: main)"
        required: false
        default: "main"
        type: string

permissions:
  contents: write
  pull-requests: write

jobs:
  generate-crds:
    name: Generate CRDs and Installer
    runs-on: ubuntu-latest

    steps:
      - name: Checkout branch
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.inputs.branch || 'main' }}
          fetch-depth: 0

      - name: Setup Go
        uses: actions/setup-go@v5
        with:
          go-version-file: k8s/migration/go.mod
          cache-dependency-path: k8s/migration/go.sum

      - name: Install controller-gen
        run: |
          go install sigs.k8s.io/controller-tools/cmd/controller-gen@v0.17.1

      - name: Setup Kustomize
        uses: imranismail/setup-kustomize@v2
        with:
          kustomize-version: '5.3.0'

      - name: Run build-installer
        run: |
          cd k8s/migration
          make build-installer TAG=${{ github.event.inputs.tag }}

      - name: Check for changes
        id: changes
        run: |
          if [[ -n "$(git status --porcelain)" ]]; then
            echo "changes=true" >> $GITHUB_OUTPUT
          else
            echo "changes=false" >> $GITHUB_OUTPUT
          fi

      - name: Disable git hooks
        if: steps.changes.outputs.changes == 'true'
        run: git config core.hooksPath /dev/null

      - name: Create Pull Request
        if: steps.changes.outputs.changes == 'true'
        uses: peter-evans/create-pull-request@v6
        with:
          branch: pre-release/${{ github.event.inputs.tag }}
          base: main
          commit-message: "chore: generate CRDs and installer for ${{ github.event.inputs.tag }}"
          title: "chore: Pre-release CRD generation for ${{ github.event.inputs.tag }}"
          body: |
            Auto-generated CRDs and installer manifests for `${{ github.event.inputs.tag }}`.

            Please review and merge before creating the release.