# From: https://github.com/garronej/ts-ci

name: GitHub release and NPM publishing

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  check_if_version_upgraded:
    name: Check if version upgrade
    # When someone forks the repo and opens a PR we want to enables the tests to be run (the previous jobs)
    # but obviously only us should be allowed to release.
    # In the following check we make sure that we own the branch this CI workflow is running on before continuing.
    # Without this check, trying to release would fail anyway because only us have the correct secret.NPM_TOKEN but
    # it's cleaner to stop the execution instead of letting the CI crash.
    if: |
      github.event_name == 'push' || 
      github.event.pull_request.head.repo.owner.login == github.event.pull_request.base.repo.owner.login
    runs-on: ubuntu-latest
    outputs:
      from_version: ${{ steps.step1.outputs.from_version }}
      to_version: ${{ steps.step1.outputs.to_version }}
      is_upgraded_version: ${{ steps.step1.outputs.is_upgraded_version }}
      is_pre_release: ${{steps.step1.outputs.is_pre_release }}
    steps:
      - uses: garronej/ts-ci@v2.1.0
        id: step1
        with:
          action_name: is_package_json_version_upgraded
          branch: ${{ github.head_ref || github.ref }}

  create_github_release:
    runs-on: ubuntu-latest
    # We create release only if the version in the package.json have been upgraded and this CI is running against the main branch.
    # We allow branches with a PR open on main to publish pre-release (x.y.z-rc.u) but not actual releases.
    if: |
      needs.check_if_version_upgraded.outputs.is_upgraded_version == 'true' &&
      (
        github.event_name == 'push' ||
        needs.check_if_version_upgraded.outputs.is_pre_release == 'true'
      )
    needs:
      - check_if_version_upgraded
    steps:
      - uses: softprops/action-gh-release@v1
        with:
          name: Release v${{ needs.check_if_version_upgraded.outputs.to_version }}
          tag_name: v${{ needs.check_if_version_upgraded.outputs.to_version }}
          target_commitish: ${{ github.head_ref || github.ref }}
          generate_release_notes: true
          draft: false
          prerelease: ${{ needs.check_if_version_upgraded.outputs.is_pre_release == 'true' }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  publish_on_npm:
    runs-on: ubuntu-latest
    needs:
      - create_github_release
      - check_if_version_upgraded
    steps:
      - uses: actions/checkout@v3
        with:
          ref: ${{ github.ref }}
      - uses: actions/setup-node@v3
        with:
          registry-url: https://registry.npmjs.org/
      - uses: bahmutov/npm-install@v1
      - run: yarn build
      - name: Publishing on NPM
        run: |
          if [ "$(npm show . version)" = "$VERSION" ]; then
            echo "This version is already published"
            exit 0
          fi
          if [ "$NODE_AUTH_TOKEN" = "" ]; then
            echo "Can't publish on NPM, You must first create a secret called NPM_TOKEN that contains your NPM auth token. https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets"
            false
          fi
          EXTRA_ARGS=""
          if [ "$IS_PRE_RELEASE" = "true" ]; then
              EXTRA_ARGS="--tag next"
          fi
          npm publish $EXTRA_ARGS
        env:
          NODE_AUTH_TOKEN: ${{secrets.NPM_TOKEN}}
          VERSION: ${{ needs.check_if_version_upgraded.outputs.to_version }}
          IS_PRE_RELEASE: ${{ needs.check_if_version_upgraded.outputs.is_pre_release }}