name: Update_CalVer

on:
  push:
    branches:
      - 'main'
    paths:
      - 'subgen.py'
      - 'launcher.py'
  workflow_dispatch:

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Generate Monthly Commit Count
        id: commit_count
        run: |
          # Get the current year and month
          YEAR=$(date +%Y)
          MONTH=$(date +%m)

          # Count commits from the start of the current month
          COMMIT_COUNT=$(git rev-list --count HEAD --since="$YEAR-$MONTH-01")
          echo "commit_count=$COMMIT_COUNT" >> $GITHUB_ENV

      - name: Set Calver Version
        id: setcalver
        run: |
          # Combine year, month, and commit count for the version
          VERSION=$(date +%Y.%m).${{ env.commit_count }}
          echo "package_version=$VERSION" >> $GITHUB_ENV

      - name: Update version file
        run: |
          sed -i "s/subgen_version =.*/subgen_version = '${{ env.package_version }}'/" subgen.py

      - name: Amend commit with version update
        env:
          GIT_AUTHOR_NAME: "McCloudS"
          GIT_AUTHOR_EMAIL: "scott@mccloud.dev"
        run: |
          git config user.name "${GIT_AUTHOR_NAME}"
          git config user.email "${GIT_AUTHOR_EMAIL}"

          # Stage the modified file
          git add subgen.py

          # Amend the most recent commit, reusing the previous commit message
          git commit --amend --reuse-message=HEAD --author="${GIT_AUTHOR_NAME} <${GIT_AUTHOR_EMAIL}>"

          # Push the amended commit
          git push --force