name: Release Helm Chart

on:
  push:
    branches:
      - main
    paths:
      - 'charts/**'
    tags:
      - 'v*'
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  # Validate chart on all triggers
  validate:
    name: Validate Helm Chart
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Helm
        uses: azure/setup-helm@v4
        with:
          version: v3.13.0

      - name: Lint chart
        run: helm lint charts/clawdbot

      - name: Lint with production values
        run: helm lint charts/clawdbot -f charts/clawdbot/values.yaml

      - name: Template validation
        run: helm template test charts/clawdbot --debug

  # Release chart only on tag push
  release:
    name: Release Helm Chart
    runs-on: ubuntu-latest
    needs: validate
    if: startsWith(github.ref, 'refs/tags/')
    permissions:
      contents: write
      pages: write
      id-token: write
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          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: v3.13.0

      - name: Install yq
        uses: mikefarah/yq@v4

      - name: Extract version from tag
        id: version
        run: |
          VERSION=${GITHUB_REF#refs/tags/v}
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "Extracted version: $VERSION"

      - name: Update Chart.yaml with version
        run: |
          VERSION="${{ steps.version.outputs.version }}"
          echo "Updating Chart.yaml with version: $VERSION"
          yq e '.version = strenv(VERSION)' -i charts/clawdbot/Chart.yaml
          yq e '.appVersion = strenv(VERSION)' -i charts/clawdbot/Chart.yaml
          cat charts/clawdbot/Chart.yaml
        env:
          VERSION: ${{ steps.version.outputs.version }}

      - name: Update values.yaml with image repository
        run: |
          echo "Updating image repository to: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}"
          yq e '.image.registry = "${{ env.REGISTRY }}"' -i charts/clawdbot/values.yaml
          yq e '.image.repository = "${{ env.IMAGE_NAME }}"' -i charts/clawdbot/values.yaml
          yq e '.image.tag = "${{ steps.version.outputs.version }}"' -i charts/clawdbot/values.yaml
          cat charts/clawdbot/values.yaml | head -20

      - name: Package Helm chart
        run: |
          mkdir -p .cr-release-packages
          helm package charts/clawdbot -d .cr-release-packages
          ls -la .cr-release-packages

      - name: Run chart-releaser
        uses: helm/chart-releaser-action@v1.6.0
        with:
          charts_dir: charts
          skip_existing: true
        env:
          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

  # Update GitHub Pages index
  publish-pages:
    name: Publish to GitHub Pages
    runs-on: ubuntu-latest
    needs: release
    if: startsWith(github.ref, 'refs/tags/')
    steps:
      - name: Checkout gh-pages branch
        uses: actions/checkout@v4
        with:
          ref: gh-pages
          fetch-depth: 0

      - name: Verify index updated
        run: |
          echo "Chart published successfully"
          echo "Helm repo: https://clawdbot.github.io/clawdbot"
          echo "Install with: helm repo add clawdbot https://clawdbot.github.io/clawdbot"