---
name: Prepare Release

on:
  workflow_dispatch:
    inputs:
      branch:
        description: 'the branch to prepare the release against'
        required: true
        deault: 'master'
      tag:
        description: 'the tag to be released'
        required: true

jobs:
  prepare:
    name: Prepare Release
    runs-on: 'ubuntu-latest'
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
          ref: ${{ github.event.inputs.branch }}
      - name: Changelog
        shell: bash
        run: |
          curl -L -o /tmp/git-chglog.tar.gz  https://github.com/git-chglog/git-chglog/releases/download/v0.14.2/git-chglog_0.14.2_linux_amd64.tar.gz
          tar xf /tmp/git-chglog.tar.gz -C /tmp git-chglog
          chmod u+x /tmp/git-chglog
          echo "creating change log for tag: ${{ github.event.inputs.tag }}"
          /tmp/git-chglog --next-tag "${{ github.event.inputs.tag }}" -o CHANGELOG.md
      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v3.8.2
        with:
          title: "${{ github.event.inputs.tag }} Changelog Bump"
          body: "This is an automated changelog commit."
          commit-message: "chore: ${{ github.event.inputs.tag }} changelog bump"
          branch: "ready-${{ github.event.inputs.tag }}"
          signoff: "gh-actions"