---
name: "Prepare chart artifacts for release"
description: "Prepare chart artifacts for release to GitHub Pages"
inputs:
  artifactPattern:
    description: "Pattern to match artifacts to release"
    required: true
  artifactPrefix:
    description: "Prefix to strip from the artifact names"
    required: false
    default: ""
  targetFolder:
    description: "Folder where to move the chart artifacts"
    required: true
    default: gh-pages
  targetBranch:
    description: "Branch to push the chart artifacts"
    required: true
    default: gh-pages

runs:
  using: "composite"
  steps:
    - name: Prepare artifacts folder
      shell: bash
      run: |
        mkdir -p artifacts

    - name: Download chart artifacts
      uses: actions/download-artifact@v4
      with:
        path: artifacts
        pattern: ${{ inputs.artifactPrefix }}${{ inputs.artifactPattern }}

    - name: Copy artifacts to gh-pages structure
      shell: bash
      working-directory: artifacts
      env:
        ARTIFACT_PREFIX: ${{ inputs.artifactPrefix }}
        TARGET_FOLDER: ${{ inputs.targetFolder }}
      run: |
        while IFS= read -d $'\0' -r ARTIFACT ; do
          echo ${ARTIFACT}
          prefix_removed_chart=${ARTIFACT/#$ARTIFACT_PREFIX}
          DELIMITER='__'
          s=${prefix_removed_chart}${DELIMITER}
          ARTIFACT_PATH_PARTS=();
          while [[ $s ]]; do
              ARTIFACT_PATH_PARTS+=( "${s%%"${DELIMITER}"*}" );
              s=${s#*"${DELIMITER}"};
          done;

          CHART_FOLDER=${ARTIFACT_PATH_PARTS[0]}
          mkdir -p "${TARGET_FOLDER}/${CHART_FOLDER}"
          cp ${ARTIFACT}/* ${TARGET_FOLDER}/${CHART_FOLDER}/
        done < <(find . -mindepth 1 -maxdepth 1 -type d -print0)

    - name: Update chart index
      shell: bash
      working-directory: ${{ inputs.targetFolder }}
      run: |
        helm repo index . --url https://bjw-s.github.io/helm-charts/

    - name: Commit Changes
      uses: stefanzweifel/git-auto-commit-action@v5
      with:
        repository: ${{ inputs.targetFolder }}
        branch: ${{ inputs.targetBranch }}
        file_pattern: "index.yaml **/*.tgz"
        disable_globbing: true