---
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
      uses: actions/github-script@v7
      with:
        script: |
          const dstFolder = "${{ inputs.targetFolder }}";
          const artifactPrefix = "${{ inputs.artifactPrefix }}";

          baseDir = process.cwd();
          artifactsDir = `${baseDir}/artifacts`;

          const globber = await glob.create(`${artifactsDir}/${artifactPrefix}*/*.tgz`);
          for await (const file of globber.globGenerator()) {
            relativePath = file.startsWith(artifactsDir) ? file.slice(artifactsDir.length) : file;
            artifactFolder = relativePath.split('/')[1];
            artifactFolderStrippedPrefix = artifactFolder.startsWith(artifactPrefix) ? artifactFolder.slice(artifactPrefix.length) : artifactFolder;
            chartType = artifactFolderStrippedPrefix.split('__')[0];
            targetFolder = `${baseDir}/${dstFolder}/${chartType}`;

            console.log(`Copying ${file} to ${targetFolder}/`);
            await io.mkdirP(targetFolder);
            await io.cp(file, `${targetFolder}/`);
          }

    - 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"