name: Version Bumper and Tagger

on: push

jobs:
  check-version-change:
    if: github.repository_owner == 'Steamopollys'
    runs-on: ubuntu-latest
    outputs:
      version_changed: ${{ steps.detect-version-change.outputs.version_changed }}
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 2 # Fetch the current and previous commit for comparison

      - name: Detect version change
        id: detect-version-change
        run: |
          echo ::set-output name=version_changed::$(git diff HEAD^ HEAD -- manifest.json | grep -q '"version_number":' && echo "true" || echo "false")

  bump-and-tag-version:
    needs: check-version-change
    if: needs.check-version-change.outputs.version_changed == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0 # Necessary for tagging to include all history

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.9'

      - name: Bump version and create tag
        run: |
          import json
          import re
          from pathlib import Path

          # Load and parse manifest.json
          manifest_path = Path('manifest.json')
          manifest = json.loads(manifest_path.read_text())
          version_number = manifest['version_number']

          # Update core/core.lua
          core_lua_path = Path('core/core.lua')
          core_lua_content = core_lua_path.read_text()
          core_lua_content = re.sub(r'MODDED_VERSION = "\d+\.\d+\.\d+-STEAMODDED"', f'MODDED_VERSION = "{version_number}-STEAMODDED"', core_lua_content)
          core_lua_path.write_text(core_lua_content)

          # Output version number for later steps
          print(f"::set-output name=version_number::{version_number}")
        id: bump-version
        shell: python

      - name: Commit and push if changed
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          commit_message: "Automatically bump version to ${{ needs.bump-and-tag-version.outputs.version_number }}"
          file_pattern: core/core.lua injector.ps1

      - name: Create and push tag
        if: steps.bump-version.outputs.version_number
        env:
          VERSION: ${{ steps.bump-version.outputs.version_number }}
        run: |
          git tag $VERSION
          git push origin $VERSION