name: Build

on:
  push:
    branches: [main, master]
    paths:
      - '**.c'
      - '**.h'
      - '**.cpp'
      - '**.scm'
      - 'meson.build'
      - 'meson_options.txt'
      - 'flake.nix'
      - 'protocols/**'
      - '.github/workflows/build.yml'
  pull_request:
    branches: [main, master]
    paths:
      - '**.c'
      - '**.h'
      - '**.cpp'
      - '**.scm'
      - 'meson.build'
      - 'meson_options.txt'
      - 'flake.nix'
      - 'protocols/**'
      - '.github/workflows/build.yml'
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: read

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Install system dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            meson \
            ninja-build \
            wayland-protocols \
            libinput-dev \
            libxkbcommon-dev \
            libpcre2-dev \
            libpixman-1-dev \
            libdrm-dev \
            libxcb1-dev \
            libxcb-icccm4-dev \
            xwayland \
            hwdata \
            libliftoff-dev \
            libdisplay-info-dev \
            libseat-dev \
            libffi-dev \
            libexpat1-dev \
            libxml2-dev \
            pkg-config

      - name: Install wayland (try apt first, build from source if needed)
        run: |
          # Try to install wayland from apt
          if sudo apt-get install -y libwayland-dev 2>/dev/null; then
            WAYLAND_VERSION=$(pkg-config --modversion wayland-server 2>/dev/null || echo "0.0.0")
            echo "Installed wayland version: $WAYLAND_VERSION"
            
            # Check if version meets requirement (>= 1.23.1)
            if dpkg --compare-versions "$WAYLAND_VERSION" ge "1.23.1"; then
              echo "✅ wayland $WAYLAND_VERSION from apt meets requirements"
              exit 0
            else
              echo "⚠️  wayland $WAYLAND_VERSION from apt is too old, building from source..."
            fi
          else
            echo "⚠️  wayland not available in apt, building from source..."
          fi
          
          # Build from source if apt package is unavailable or too old
          git clone https://gitlab.freedesktop.org/wayland/wayland.git
          cd wayland
          git checkout 1.23.1
          meson setup build/ --prefix=/usr -Ddocumentation=false
          sudo ninja -C build/ install
          sudo ldconfig
          cd ..
          echo "✅ Built wayland 1.23.1 from source"

      - name: Install wlroots (try apt first, build from source if needed)
        run: |
          # Try to install wlroots from apt
          if sudo apt-get install -y libwlroots-dev 2>/dev/null; then
            WLROOTS_VERSION=$(pkg-config --modversion wlroots 2>/dev/null || echo "0.0.0")
            echo "Installed wlroots version: $WLROOTS_VERSION"
            
            # Check if version meets requirement (>= 0.19.0)
            if dpkg --compare-versions "$WLROOTS_VERSION" ge "0.19.0"; then
              echo "✅ wlroots $WLROOTS_VERSION from apt meets requirements"
              exit 0
            else
              echo "⚠️  wlroots $WLROOTS_VERSION from apt is too old, building from source..."
            fi
          else
            echo "⚠️  wlroots not available in apt, building from source..."
          fi
          
          # Build from source if apt package is unavailable or too old
          git clone https://gitlab.freedesktop.org/wlroots/wlroots.git
          cd wlroots
          git checkout 0.19.0
          meson setup build/ --prefix=/usr
          sudo ninja -C build/ install
          sudo ldconfig
          cd ..
          echo "✅ Built wlroots 0.19.0 from source"

      - name: Install scenefx (build from source - not in apt)
        run: |
          # scenefx is not available in Ubuntu apt repositories
          # Build from source
          git clone -b 0.4.1 https://github.com/wlrfx/scenefx.git
          cd scenefx
          meson setup build/ --prefix=/usr
          sudo ninja -C build/ install
          sudo ldconfig
          cd ..
          echo "✅ Built scenefx 0.4.1 from source"

      - name: Configure meson
        run: |
          meson setup build/ --prefix=/usr

      - name: Build project
        run: |
          ninja -C build/

      - name: Build summary
        run: |
          echo "✅ Build completed successfully!"
          echo "Built executables:"
          ls -lh build/mango build/mmsg