name: 'Bundle size reporter'
description: 'Post bundle size difference compared to another branch'
inputs:
  branch:
    description: 'Branch to compare to'
    required: true
    default: 'main'
  paths:
    description:
      'Paths to json file bundle size report or folder containing bundles'
    required: true
    default: '/'
  onlyDiff:
    description: 'Report only different sizes'
    required: false
    default: 'false'
  filter:
    description: 'Regex filter based on file path'
    required: false
  unit:
    description: 'Size unit'
    required: false
    default: 'KB'

  # Comment inputs
  comment:
    description: 'Post comment'
    required: false
    default: 'true'
  header:
    description: 'Comment header'
    required: false
    default: 'Bundle size report'
  append:
    description: 'Append comment'
    required: false
    default: 'false'
  ghToken:
    description: 'Github token'
    required: false

runs:
  using: 'composite'
  steps:
    # Checkout branch to compare to [required]
    - name: Checkout base branch
      uses: actions/checkout@v4
      with:
        ref: ${{ inputs.branch }}
        path: br-base
        token: ${{ inputs.ghToken }}

    # Generate the bundle size difference report [required]
    - name: Generate report
      id: bundleSize
      uses: nejcm/bundle-size-reporter-action@v1.4.1
      with:
        paths: ${{ inputs.paths }}
        onlyDiff: ${{ inputs.onlyDiff }}
        filter: ${{ inputs.filter }}
        unit: ${{ inputs.unit }}

    # Post github action summary
    - name: Post summary
      if: ${{ steps.bundleSize.outputs.hasDifferences == 'true' }} # post only in case of changes
      run: |
        echo '${{ steps.bundleSize.outputs.summary }}' >> $GITHUB_STEP_SUMMARY
      shell: bash

    # Post github action comment
    - name: Post comment
      uses: marocchino/sticky-pull-request-comment@v2
      if: ${{ steps.bundleSize.outputs.hasDifferences == 'true' }} # post only in case of changes
      with:
        number: ${{ github.event.pull_request.number }}
        header: ${{ inputs.header }}
        append: ${{ inputs.append }}
        message: '${{ steps.bundleSize.outputs.summary }}'
        GITHUB_TOKEN: ${{ inputs.ghToken }}