name: Pull Request Workflow for Helm Chart changes

on:
  pull_request:
    branches:
      - master
    paths:
      - 'deployments/kubernetes/chart/reloader/**'

env:
  DOCKER_FILE_PATH: Dockerfile
  DOCKER_UBI_FILE_PATH: Dockerfile.ubi
  KUBERNETES_VERSION: "1.30.0"
  KIND_VERSION: "0.23.0"
  REGISTRY: ghcr.io

jobs:

  helm-chart-validation:
    permissions:
      contents: read

    runs-on: ubuntu-latest
    name: Helm Chart Validation

    steps:

    - name: Check out code
      uses: actions/checkout@v5
      with:
        ref: ${{github.event.pull_request.head.sha}}
        fetch-depth: 0

    # Setting up helm binary
    - name: Set up Helm
      uses: azure/setup-helm@v4
      with:
        version: v3.11.3

    - name: Helm chart unit tests
      uses: d3adb5/helm-unittest-action@v2
      with:
        charts: deployments/kubernetes/chart/reloader

  helm-version-validation:
    needs: helm-chart-validation

    permissions:
      contents: read

    runs-on: ubuntu-latest
    name: Helm Version Validation
    if: ${{ contains(github.event.pull_request.labels.*.name, 'release/helm-chart') }}

    steps:

    - name: Check out code
      uses: actions/checkout@v5
      with:
        ref: ${{github.event.pull_request.head.sha}}
        fetch-depth: 0

    - name: Add Stakater Helm Repo
      run: |
        helm repo add stakater https://stakater.github.io/stakater-charts

    - name: Get version for chart from helm repo
      id: chart_eval
      run: |
        current_chart_version=$(helm search repo stakater/reloader | tail -n 1 | awk '{print $2}')
        echo "CURRENT_CHART_VERSION=$(echo ${current_chart_version})" >> $GITHUB_OUTPUT

    - name: Get Updated Chart version from Chart.yaml
      uses: mikefarah/yq@master
      id: new_chart_version
      with:
        cmd: yq e '.version' deployments/kubernetes/chart/reloader/Chart.yaml

    - name: Check Version
      uses: aleoyakas/check-semver-increased-action@v1
      id: check-version
      with:
        current-version: ${{ steps.new_chart_version.outputs.result }}
        previous-version: ${{ steps.chart_eval.outputs.CURRENT_CHART_VERSION }}

    - name: Fail if Helm Chart version isnt updated
      if: steps.check-version.outputs.is-version-increased != 'true'
      run: |
        echo "Helm Chart Version wasnt updated"
        exit 1