name: "Create release PR"

on:
  workflow_dispatch:
    inputs:
      release:
        description: "Define release version (ex: v1, v2, v3)"
        required: true

jobs:
  createPullRequest:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
      - name: Check if remote branch exists
        env:
          BRANCH: releases/${{ github.event.inputs.release }}
        run: |
          echo "##[set-output name=exists;]$(echo $(if [[ -z $(git ls-remote --heads origin ${BRANCH}) ]]; then echo false; else echo true; fi;))"
        id: extract-branch-status
      # these two only need to occur if the branch exists
      - name: Checkout proper branch
        if: ${{ steps.extract-branch-status.outputs.exists == 'true' }}
        env:
          BRANCH: releases/${{ github.event.inputs.release }}
        run: git checkout ${BRANCH}
      - name: Reset promotion branch
        if: ${{ steps.extract-branch-status.outputs.exists == 'true' }}
        run: |
          git fetch origin main:main
          git reset --hard main
      - name: Install packages
        run: |
          rm -rf node_modules/
          npm install --no-bin-links
          npm run build
      - name: Remove node_modules from gitignore
        run: |
          sed -i '/node_modules/d' ./.gitignore
      - name: Create branch
        uses: peterjgrainger/action-create-branch@v2.0.1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          branch: releases/${{ github.event.inputs.release }}
      - name: Create pull request
        uses: peter-evans/create-pull-request@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: Add node modules and new code for release
          title: ${{ github.event.inputs.release }} new release
          base: releases/${{ github.event.inputs.release }}
          branch: create-release
          delete-branch: true