name: Minify Lua Code

on:
  push:
    branches:
      - main
    paths:
      - 'src/**'
  pull_request:
    branches:
      - main
    paths:
      - 'src/**'

jobs:
  minify:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v2

    - name: Install Lua
      run: |
        sudo apt-get update
        sudo apt-get install -y lua5.3

    - name: Set up Node.js
      uses: actions/setup-node@v2
      with:
        node-version: '16'

    - name: Install Lua minifier
      run: |
        npm install luamin
        echo "Testing luamin installation:"
        npx luamin --version || echo "luamin version check failed"

    - name: Combine and Minify Lua files
      run: |
        mkdir -p release
        
        echo "Checking Lua syntax first..."
        if lua -e "loadfile('src/main.lua')" ; then
          echo "Lua syntax is valid, proceeding with minification..."
          if npx luamin -f src/main.lua > release/main.min.lua; then
            echo "Main.lua minification successful"
          else
            echo "Minification failed"
            exit 1
          fi
        else
          echo "Lua syntax error detected in main.lua"
          exit 1
        fi

    - name: Commit minified Lua file
      if: success()
      run: |
        if [ -s release/main.min.lua ]; then
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
          git add release/main.min.lua
          git commit -m 'Minify main.lua'
          git push
        else
          echo "Error: main.min.lua is empty or doesn't exist"
          exit 1
        fi
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}