name: Self-Hosted Universal CI/CD

on:
  push:
    branches: [main, master]
    tags: ['v*.*.*']
  pull_request:
    branches: [main, master]
    types: [opened, synchronize, reopened, closed]
  workflow_dispatch:

jobs:
  detect-project:
    name: Detect Project Language
    runs-on: self-hosted
    outputs:
      lang: ${{ steps.detect.outputs.lang }}
    steps:
      - uses: actions/checkout@v4
      - id: detect
        run: |
          if [ -f package.json ]; then
            echo "lang=node" >> $GITHUB_OUTPUT
          elif [ -f requirements.txt ]; then
            echo "lang=python" >> $GITHUB_OUTPUT
          elif [ -f Cargo.toml ]; then
            echo "lang=rust" >> $GITHUB_OUTPUT
          elif [ -f go.mod ]; then
            echo "lang=go" >> $GITHUB_OUTPUT
          elif ls *.csproj 1> /dev/null 2>&1; then
            echo "lang=dotnet" >> $GITHUB_OUTPUT
          elif [ -f pom.xml ]; then
            echo "lang=java" >> $GITHUB_OUTPUT
          elif [ -f composer.json ]; then
            echo "lang=php" >> $GITHUB_OUTPUT
          elif [ -f Gemfile ]; then
            echo "lang=ruby" >> $GITHUB_OUTPUT
          else
            echo "lang=unknown" >> $GITHUB_OUTPUT
          fi

  build-test:
    name: Build & Test (${{ needs.detect-project.outputs.lang }})
    needs: detect-project
    runs-on: self-hosted
    steps:
      - uses: actions/checkout@v4

      # Node.js
      - name: Setup Node.js
        if: ${{ needs.detect-project.outputs.lang == 'node' }}
        uses: actions/setup-node@v4
        with:
          node-version: 20.x
          cache: 'npm'

      # Python
      - name: Setup Python
        if: ${{ needs.detect-project.outputs.lang == 'python' }}
        uses: actions/setup-python@v5
        with:
          python-version: 3.x

      # Rust
      - name: Setup Rust
        if: ${{ needs.detect-project.outputs.lang == 'rust' }}
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable

      # Go
      - name: Setup Go
        if: ${{ needs.detect-project.outputs.lang == 'go' }}
        uses: actions/setup-go@v5
        with:
          go-version: 1.21

      # .NET
      - name: Setup .NET
        if: ${{ needs.detect-project.outputs.lang == 'dotnet' }}
        uses: actions/setup-dotnet@v3
        with:
          dotnet-version: 7.0.x

      # Java
      - name: Setup Java
        if: ${{ needs.detect-project.outputs.lang == 'java' }}
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: 17

      # PHP
      - name: Setup PHP
        if: ${{ needs.detect-project.outputs.lang == 'php' }}
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.1'
          extensions: mbstring, xml, curl
          tools: composer

      # Ruby
      - name: Setup Ruby
        if: ${{ needs.detect-project.outputs.lang == 'ruby' }}
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: 3.1
          bundler-cache: true

      # Build
      - name: Install & Build
        run: |
          case "${{ needs.detect-project.outputs.lang }}" in
            node) npm ci && npm run build --if-present ;;
            python) pip install -r requirements.txt ;;
            rust) cargo build --release ;;
            go) go build ./... ;;
            dotnet) dotnet restore && dotnet build --configuration Release ;;
            java) mvn install -DskipTests ;;
            php) composer install --no-interaction ;;
            ruby) bundle install ;;
            *) echo "Unknown language - skipping build" ;;
          esac

      # Test
      - name: Run Tests
        run: |
          case "${{ needs.detect-project.outputs.lang }}" in
            node) npm test || true ;;
            python) pytest || true ;;
            rust) cargo test || true ;;
            go) go test ./... || true ;;
            dotnet) dotnet test --no-build --verbosity normal || true ;;
            java) mvn test || true ;;
            php) vendor/bin/phpunit || true ;;
            ruby) bundle exec rspec || true ;;
            *) echo "No tests configured" ;;
          esac