# required permissions:
#   id-token: write for writing to github
#   contents: write for updating package contents

name: "Publish to updated package artifacts"
description: "Publish to NPM registry and push updates to Github"
inputs:
  # cannot load token directly in action, so we need to pass it in
  npm-token:
    description: "NPM token for authenticated requests"
    required: true
  github-token:
    description: "Github token for authenticated requests"
    required: true
  path-to-package-dir:
    description: "Path to the package to update's directory"
    required: true
  pull-number:
    description: "Pull request numeric ID. If this is empty, expect a commit-sha with an associated PR."
    required: false
  commit-sha:
    description: "Commit SHA of code to publish"
    required: false
  branch:
    description: "Branch to update"
    required: true

runs:
  using: "composite"
  steps:
    - uses: actions/checkout@v3
      with:
        node-version: ${{ env.NODE_VERSION }}

    - name: Get PR for push event HEAD commit
      # only fetch PR for commit if pull-number is not specified
      if: ${{ inputs.pull-number == '' }}
      uses: ./.github/actions/get-pr-for-commit
      id: get-pr-for-commit
      with:
        commit-sha: ${{ inputs.commit-sha }}

    - name: Decide the value of pull-number
      id: set-pull-number
      shell: bash
      run: |
        if [[ '${{ inputs.pull-number }}' != '' ]]
        then
            echo "::set-output name=pull-number::${{ inputs.pull-number }}"
        else
            echo "::set-output name=pull-number::${{ steps.get-pr-for-commit.outputs.pull-number }}"
        fi

    - name: Map PR review to version update
      if: steps.set-pull-number.outputs.pull-number > 0
      uses: ./.github/actions/map-pr-review-to-version
      id: map-pr-review-to-version
      with:
        pull-number: ${{ steps.set-pull-number.outputs.pull-number }}

    - name: Install dependencies && upgrade package version
      # this prevents any subsequent steps from running in the event there is (1) no version update or (2) no PR associated with the commit
      if: contains(fromJson('["", "none"]'), steps.map-pr-review-to-version.outputs.version) == false
      id: update-package-version
      shell: bash
      run: |
        cd $PATH_TO_PACKAGE_DIR
        yarn install
        git config user.name github-actions[bot]
        git config user.email github-actions[bot]@users.noreply.github.com
        npm version ${{ steps.map-pr-review-to-version.outputs.version }}
        echo "\n\nLog after update"
        git log
        echo "\n\n"
      env:
        PATH_TO_PACKAGE_DIR: ${{ inputs.path-to-package-dir }}

    - name: NPM login
      if: contains(fromJson('["", "none"]'), steps.map-pr-review-to-version.outputs.version) == false
      shell: bash
      run: |
        echo "//registry.npmjs.org/:_authToken=${NPM_PUBLISH_TOKEN}" > ~/.npmrc
      env:
        NPM_PUBLISH_TOKEN: ${{ inputs.npm-token }}

    - name: Publish artifacts to NPM
      if: contains(fromJson('["", "none"]'), steps.map-pr-review-to-version.outputs.version) == false
      run: npm publish $PATH_TO_PACKAGE_DIR
      shell: bash
      env:
        PATH_TO_PACKAGE_DIR: ${{ inputs.path-to-package-dir }}

    - name: Push changes to Github
      if: contains(fromJson('["", "none"]'), steps.map-pr-review-to-version.outputs.version) == false
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ inputs.github-token }}
        branch: ${{ inputs.branch }}