name: Build (Linux, x86-64)

on:
  push:
    paths: &workflow_paths
      - '**.cpp'
      - '**.h'
      - '**.c'
      - '**.cc'
      - '**.cxx'
      - '**.hh'
      - '**.hpp'
      - '**.hxx'
      - '**.inl'
      - "**meson.build"
      - "flake.nix"
      - '.github/workflows/build-linux.yml'

  pull_request:
    paths: *workflow_paths

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

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Install system dependencies
        uses: daaku/gh-action-apt-install@v4
        with:
          packages: build-essential ccache python3 python3-pip ninja-build libsdl2-dev libgl-dev libglu1-mesa-dev libpthread-stubs0-dev patchelf libglm-dev

      - name: Install meson from pip
        run: |
          python -m pip install meson
          ccache -M 5G || true

      - name: Restore ccache
        uses: actions/cache@v4
        with:
          path: ~/.ccache
          key: ${{ runner.os }}-ccache-${{ hashFiles('**/meson.build') }}

      - name: Restore meson cache
        uses: actions/cache@v4
        with:
          path: ~/.cache/meson
          key: ${{ runner.os }}-meson-${{ hashFiles('**/meson.build') }}

      - name: Configure Meson
        env:
          CC: "ccache clang"
          CXX: "ccache clang++"
          CCACHE_DIR: ${{ runner.temp }}/ccache
        run: |
          mkdir -p "$CCACHE_DIR"
          export CCACHE_DIR="$CCACHE_DIR"
          meson setup build --wipe --native-file=./scripts/llvm_native.txt

      - name: Build with Meson
        env:
          CC: "ccache clang"
          CXX: "ccache clang++"
          CCACHE_DIR: ${{ runner.temp }}/ccache
        run: |
          export CCACHE_DIR="${{ runner.temp }}/ccache"
          # Use all available cores for faster parallel builds
          meson compile -C build -j $(nproc) -v Minecraft.Client

      - name: Install patchelf
        run: sudo apt-get install -y patchelf

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: minecraft-client-linux-${{ github.sha }}
          path: build/Minecraft.Client/Minecraft.Client
          retention-days: 7