name: "Release new prerelease version"

on:
  push:
    branches:
      - develop

jobs:
  prerelease:
    if: "github.event.head_commit.message != 'chore: storing version and changelog'"
    name: Preparing release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
          token: ${{ secrets.ESCORIA_DEPLOYMENT_TOKEN }}
      - name: Remove trailing whitespace
        run: |
          OUTPUT=$(find . -name "*.gd" -type f | xargs sed -i 's/[[:space:]]$//')
          RC=$?
          if [[ $RC -ne 0 ]] && [[ $RC -ne 128 ]]
          then
            echo $OUTPUT
            exit $RC 
          fi
          exit 0
      - name: Calculate version
        id: calculate_version
        uses: mathieudutour/github-tag-action@v5.6
        with:
          github_token: ${{ secrets.ESCORIA_DEPLOYMENT_TOKEN }}
          dry_run: true
          pre_release_branches: "develop"
          append_to_pre_release_tag: "alpha"
          default_bump: "release"
          custom_release_rules: "fix:prerelease,feat:prerelease"
      - name: "Write changelog"
        if: "steps.calculate_version.outputs.changelog != ''"
        run: |
          CHANGELOG=""
          if [ -e CHANGELOG.md ]
          then
              CHANGELOG=$(cat CHANGELOG.md)
          fi
          echo -e "${{steps.calculate_version.outputs.changelog}}\n\n${CHANGELOG}" > CHANGELOG.md
      - name: "Commit"
        if: "steps.calculate_version.outputs.changelog != ''"
        uses: EndBug/add-and-commit@v7.2.1
        with:
          message: "chore: storing version and changelog"
          push: true
  release:
    if: "github.event.head_commit.message == 'chore: storing version and changelog'"
    name: Release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
          token: ${{ secrets.ESCORIA_DEPLOYMENT_TOKEN }}
      - name: Create version
        id: create_version
        uses: mathieudutour/github-tag-action@v5.6
        with:
          github_token: ${{ secrets.ESCORIA_DEPLOYMENT_TOKEN }}
          dry_run: true
          pre_release_branches: "develop"
          append_to_pre_release_tag: "alpha"
          default_bump: "release"
          custom_release_rules: "fix:prerelease,feat:prerelease"
      - name: Create a GitHub release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.ESCORIA_DEPLOYMENT_TOKEN }}
        with:
          tag_name: ${{ steps.create_version.outputs.new_tag }}
          release_name: ${{ steps.create_version.outputs.new_tag }}
          body: ${{ steps.create_version.outputs.changelog }}