name: Helm Upgrade
description: Login to an OCI registry, update chart dependencies, and run helm upgrade for the chart in the current directory
inputs:
  DEPLOYMENT_NAME:
    description: "The Helm release name and target namespace"
    required: true
  REGISTRY:
    description: "OCI registry hostname for helm dependency login"
    required: true
  REGISTRY_USERNAME:
    description: "Username for OCI registry login"
    required: true
  REGISTRY_TOKEN:
    description: "Token for OCI registry login"
    required: true
  CHART_PATH:
    description: "Path to the Helm chart"
    default: "."
  VALUES_FILE:
    description: "Path to a values file (optional)"
    default: ""

runs:
  using: composite
  steps:
    - name: Helm OCI Login
      shell: sh
      run: |
        echo "${{ inputs.REGISTRY_TOKEN }}" | helm registry login ${{ inputs.REGISTRY }} \
          --username ${{ inputs.REGISTRY_USERNAME }} \
          --password-stdin

    - name: Helm Upgrade
      shell: sh
      run: |
        helm dependency update ${{ inputs.CHART_PATH }}
        VALUES_FLAG=""
        if [ -n "${{ inputs.VALUES_FILE }}" ]; then VALUES_FLAG="--values ${{ inputs.VALUES_FILE }}"; fi
        echo "Running: helm upgrade ${{ inputs.DEPLOYMENT_NAME }} ${{ inputs.CHART_PATH }} -n ${{ inputs.DEPLOYMENT_NAME }} $VALUES_FLAG"
        helm upgrade ${{ inputs.DEPLOYMENT_NAME }} ${{ inputs.CHART_PATH }} -n ${{ inputs.DEPLOYMENT_NAME }} $VALUES_FLAG

    - name: Remove kubeconfig
      if: always()
      shell: sh
      run: rm -f ~/.kube/config