# This workflow automates the release process for Helm charts.
# The workflow creates a new branch for the release and opens a pull request against the 'gh-pages' branch,
# allowing the changes to be reviewed and merged manually.

name: "Helm: release charts"

on:
  push:
    branches:
      - "master"
      - "[0-9].[0-9]*"
    paths:
      - "helm/**"
  workflow_dispatch:
    inputs:
      ref:
        description: "The branch, tag, or commit SHA to check out"
        required: false
        default: "master"

jobs:
  release:
    runs-on: ubuntu-24.04
    permissions:
      contents: write
      pull-requests: write
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ inputs.ref || github.ref_name }}
          persist-credentials: true
          submodules: recursive
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config user.name "$GITHUB_ACTOR"
          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"

      - name: Install Helm
        uses: azure/setup-helm@v4
        with:
          version: v3.5.4

      - name: Add bitnami repo dependency
        run: helm repo add bitnami https://charts.bitnami.com/bitnami

      - name: Fetch/list all tags
        run: |
          # Debugging tags
          git fetch --tags --force
          git tag -d superset-helm-chart-0.13.4 || true
          echo "DEBUG TAGS"
          git show-ref --tags

      - name: Create unique pages branch name
        id: vars
        run: echo "branch_name=helm-publish-${GITHUB_SHA:0:7}" >> $GITHUB_ENV

      - name: Force recreate branch from gh-pages
        run: |
          # Ensure a clean working directory
          git reset --hard
          git clean -fdx
          git checkout -b local_gha_temp
          git submodule update

          # Fetch the latest gh-pages branch
          git fetch origin gh-pages

          # Check out and reset the target branch based on gh-pages
          git checkout -B ${{ env.branch_name }} origin/gh-pages

          # Remove submodules from the branch
          git submodule deinit -f --all

          # Force push to the remote branch
          git push origin ${{ env.branch_name }} --force

          # Return to the original branch
          git checkout local_gha_temp

      - name: Fetch/list all tags
        run: |
          git submodule update
          cat .github/actions/chart-releaser-action/action.yml

      - name: Run chart-releaser
        uses: ./.github/actions/chart-releaser-action
        with:
          version: v1.6.0
          charts_dir: helm
          mark_as_latest: false
          pages_branch: ${{ env.branch_name }}
        env:
          CR_TOKEN: "${{ github.token }}"
          CR_RELEASE_NAME_TEMPLATE: "superset-helm-chart-{{ .Version }}"

      - name: Open Pull Request
        uses: actions/github-script@v7
        with:
          script: |
            const branchName = '${{ env.branch_name }}';
            const [owner, repo] = process.env.GITHUB_REPOSITORY.split('/');

            if (!branchName) {
              throw new Error("Branch name is not defined.");
            }

            const pr = await github.rest.pulls.create({
              owner,
              repo,
              title: `Helm chart release for ${branchName}`,
              head: branchName,
              base: "gh-pages", // Adjust if the target branch is different
              body: `This PR releases Helm charts to the gh-pages branch.`,
            });

            core.info(`Pull request created: ${pr.data.html_url}`);
        env:
          BRANCH_NAME: ${{ env.branch_name }}