name: helm chart

on:
  workflow_dispatch:
  push:
    branches: [main]
    paths:
      - "deploy/charts/buzz/**"
      - ".github/workflows/helm-chart.yml"
      - "ct.yaml"
  pull_request:
    paths:
      - "deploy/charts/buzz/**"
      - ".github/workflows/helm-chart.yml"
      - "ct.yaml"

jobs:
  lint-and-unittest:
    name: lint + unittest + render matrix
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4  # v4.3.1
        with:
          version: v3.16.4

      - name: Install helm-unittest plugin
        run: helm plugin install --version 0.8.2 https://github.com/helm-unittest/helm-unittest

      - name: Set up Python (for chart-testing)
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - name: Set up chart-testing
        uses: helm/chart-testing-action@0d28d3144d3a25ea2cc349d6e59901c4ff469b3b  # v2.7.0

      - name: Build chart dependencies
        run: helm dependency build deploy/charts/buzz

      - name: ct lint
        run: ct lint --config ct.yaml --all

      - name: helm-unittest
        run: helm unittest deploy/charts/buzz

      - name: helm template (render every fixture)
        run: |
          set -euo pipefail
          for f in deploy/charts/buzz/ci/*-values.yaml deploy/charts/buzz/tests/fixtures/*-values.yaml; do
            echo "::group::render $f"
            helm template buzz deploy/charts/buzz -f "$f"
            echo "::endgroup::"
          done

  install-on-kind:
    # Full end-to-end install requires the public ghcr.io/block/buzz image to
    # exist and to embed Max's startup migrations. Runs only after Sami's
    # image PR merges (`workflow_dispatch`) or on a schedule once main carries
    # both prerequisites. Render/lint above is the per-PR signal.
    name: install on kind (gated)
    if: github.event_name == 'workflow_dispatch'
    runs-on: ubuntu-latest
    needs: lint-and-unittest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4  # v4.3.1
        with:
          version: v3.16.4

      - name: Set up Python (for chart-testing)
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - name: Set up chart-testing
        uses: helm/chart-testing-action@0d28d3144d3a25ea2cc349d6e59901c4ff469b3b  # v2.7.0

      - name: Create kind cluster
        uses: helm/kind-action@0025e74a8c7512023d06dc019c617aa3cf561fde  # v1.10.0
        with:
          version: v0.24.0
          node_image: kindest/node:v1.31.0

      - name: Build chart dependencies
        run: helm dependency build deploy/charts/buzz

      - name: ct install (quickstart profile)
        run: ct install --config ct.yaml --charts deploy/charts/buzz --helm-extra-args "--timeout 600s"