name: Build Godot Project (Linux)
on: [push]

jobs:
  build-linux:
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository code
        uses: actions/checkout@v4


      - name: Auto-Detect Godot Version and Setup Engine (With Caching)
        run: |
          echo "🔍 Parsing project.godot to identify the target engine version..."
          VERSION_SHORT=$(grep "config/features" project.godot | sed -E 's/^[^\"]*\"([^\"]+)\".*/\1/' | xargs)
          
          if [ -z "$VERSION_SHORT" ]; then
            VERSION_SHORT="4.7"
          fi
          
          VERSION_URL="${VERSION_SHORT}-stable"
          VERSION_FILE="${VERSION_SHORT}.stable"
          
          # Paths inside our persistent volume
          CACHE_DIR="/root/.godot-si-cache/${VERSION_FILE}"
          
          echo "🎯 Detected Target Version: $VERSION_SHORT"
          echo "----------------------------------------------"

          # Check if this specific version is already cached
          if [ -f "${CACHE_DIR}/godot" ] && [ -f "${CACHE_DIR}/linux_release.x86_64" ]; then
            echo "🚀 Cache Hit! Found Godot ${VERSION_SHORT} locally. Copying files..."
            cp "${CACHE_DIR}/godot" ./godot
            mkdir -p ~/.local/share/godot/export_templates/${VERSION_FILE}
            cp "${CACHE_DIR}/linux_release.x86_64" ~/.local/share/godot/export_templates/${VERSION_FILE}/linux_release.x86_64
          else
            echo "📥 Cache Miss. Downloading Godot Engine ($VERSION_URL)..."
            curl -L "https://github.com/godotengine/godot/releases/download/${VERSION_URL}/Godot_v${VERSION_URL}_linux.x86_64.zip" -o godot.zip
            unzip godot.zip
            mv "Godot_v${VERSION_URL}_linux.x86_64" godot
            chmod +x godot

            echo "📥 Downloading Export Templates ($VERSION_URL)..."
            curl -L "https://github.com/godotengine/godot/releases/download/${VERSION_URL}/Godot_v${VERSION_URL}_export_templates.tpz" -o templates.zip
            unzip templates.zip
            
            echo "🔧 Mapping Template Directories..."
            mkdir -p ~/.local/share/godot/export_templates/${VERSION_FILE}
            mv templates/linux_release.x86_64 ~/.local/share/godot/export_templates/${VERSION_FILE}/linux_release.x86_64
            
            echo "💾 Saving files to persistent host cache for next time..."
            mkdir -p "${CACHE_DIR}"
            cp ./godot "${CACHE_DIR}/godot"
            cp ~/.local/share/godot/export_templates/${VERSION_FILE}/linux_release.x86_64 "${CACHE_DIR}/linux_release.x86_64"
          fi

      - name: Export Linux Binary
        run: |
          mkdir -p "${{ gitea.workspace }}/build/linux"
          mkdir -p build/linux
          ./godot --headless --export-release "Linux" build/linux/godot_number_factory.x86_64

      - name: debug
        run: |
          ls -la "${{ gitea.workspace }}/build/linux"
          ls -la build/linux

      - name: Upload Linux Build Artifact
        uses: actions/upload-artifact@v4
        with:
          name: linux-build
          path: build/linux/