.HelmChartLint: &HelmChartLint
  name: HelmChartLint
  image: alpine/helm:3.10.0
  
  environment:
    CHART_PATH: "./chart"
    
  commands:
    - &HelmChartLintCommands |
      cd "$CHART_PATH"
      helm lint .

.HelmChartPublish: &HelmChartPublish
  name: HelmChartPublish
  image: alpine/helm:3.10.1
  
  environment:
    CHART_PATH: "./chart"
    HELM_REPO_NAME: "" # defaults to project name
    HELM_ENDPOINT: "" # defaults to gitea organization helm registry if running in gitea
    HELM_USER: "" # defaults to CI_REGISTRY_USER
    HELM_PASSWORD: "" # defaults to CI_REGISTRY_PASSWORD
    HELM_LINT: "false"

    TAG_COMMIT_ENABLE: "false"
    TAG_COMMIT_BASE_VERSION: "0.0.0"
    TAG_COMMIT_PREFIX: "commit-"

    TAG_REF_SLUG_ENABLE: "true"
    TAG_REF_SLUG_BASE_VERSION: "0.0.0"

    TAG_CHART_YAML_VERSION: "false"
    
  commands:
      
    - &HelmChartPublishCommands |
      # drone does not support expanding vars in environment values, set defaults via bash
      if [[ -z "$HELM_REPO_NAME" ]]; then HELM_REPO_NAME=$CI_PROJECT_NAME; fi
      if [[ -z "$HELM_USER" ]]; then HELM_USER=$CI_REGISTRY_USER; fi
      if [[ -z "$HELM_PASSWORD" ]]; then HELM_PASSWORD=$CI_REGISTRY_PASSWORD; fi

      # add default chart endpoints for gitea
      if [[ -z "$HELM_ENDPOINT" ]]; then
        if [[ ! -z "$GITEA_PACKAGES_API" ]]; then
          HELM_ENDPOINT="$GITEA_PACKAGES_API/$CI_PROJECT_NAMESPACE/helm"
        else
          echo "ERROR: no helm endpoint defined"
          exit 1
        fi
      fi
    
      # install plugin chartmuseum/helm-push
      helm plugin install https://github.com/chartmuseum/helm-push

      # register repo
      helm repo add --username="$HELM_USER" --password="$HELM_PASSWORD" "$HELM_REPO_NAME" "$HELM_ENDPOINT"

      cd "$CHART_PATH"

      # lint if enabled
      if [[ "$HELM_LINT" == "true" ]]; then
        helm lint .
      fi

      # prepare package
      helm package .

      # publish version for commit
      if [[ "$TAG_COMMIT_ENABLE" == "true" ]]; then
        helm cm-push . "$HELM_REPO_NAME" --version=$TAG_COMMIT_BASE_VERSION-$IMAGE_COMMIT_PREFIX$CI_COMMIT_SHA
      fi

      # publish version for git branch/tag
      if [[ "$TAG_REF_SLUG_ENABLE" == "true" ]] && [[ ! -z $DRONE_TAG ]]; then
        # special handling for tags: strip leading "v" character if present to allow tags with or without leading "v" to work
        helm cm-push . "$HELM_REPO_NAME" --version="${DRONE_TAG#"v"}"
      elif [[ "$TAG_REF_SLUG_ENABLE" == "true" ]] && [[ -z "$DRONE_PULL_REQUEST" ]] && [[ ! -z $DRONE_BRANCH ]]; then
        helm cm-push . "$HELM_REPO_NAME" --version=$TAG_REF_SLUG_BASE_VERSION-$DRONE_BRANCH
      fi
    
      # publish version specified in Chart.yaml 
      if [[ "$TAG_CHART_YAML_VERSION" == "true" ]]; then
        helm cm-push . "$HELM_REPO_NAME"
      fi