name: Linux Compatibility

on:
  push:
    paths:
      - "server/**"
      - ".gitattributes"
      - ".gitignore"
      - ".github/workflows/linux-compatibility.yml"
  pull_request:
    paths:
      - "server/**"
      - ".gitattributes"
      - ".gitignore"
      - ".github/workflows/linux-compatibility.yml"

jobs:
  ubuntu:
    name: Ubuntu dedicated server
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: server
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install tools
        run: |
          sudo apt-get update
          sudo apt-get install -y shellcheck

      - name: Verify start.sh LF and executable bit
        run: |
          python3 - <<'PY'
          from pathlib import Path
          data = Path("start.sh").read_bytes()
          assert b"\r\n" not in data, "start.sh must use LF line endings"
          PY
          test -x start.sh

      - name: Syntax and shellcheck
        run: |
          bash -n start.sh
          shellcheck start.sh

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - name: Create clean venv and install server deps
        run: |
          python -m venv .venv
          .venv/bin/python -m pip install --upgrade pip
          .venv/bin/python -m pip install -r requirements-server.txt pytest
          # Ensure GUI-only deps are not required for dedicated server
          ! .venv/bin/python -c "import PySide6" 2>/dev/null

      - name: Compile and test
        run: |
          .venv/bin/python -m compileall -q .
          .venv/bin/python -m pytest -q
          .venv/bin/python test_npc_protocol.py
          .venv/bin/python test_combat_protocol.py

  arch:
    name: Arch Linux container
    runs-on: ubuntu-latest
    container:
      image: archlinux:latest
    defaults:
      run:
        working-directory: server
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install packages
        run: |
          pacman -Syu --noconfirm python python-pip shellcheck

      - name: Verify start.sh LF and executable bit
        run: |
          python - <<'PY'
          from pathlib import Path
          data = Path("start.sh").read_bytes()
          assert b"\r\n" not in data, "start.sh must use LF line endings"
          PY
          test -x start.sh

      - name: Syntax and shellcheck
        run: |
          bash -n start.sh
          shellcheck start.sh

      - name: Create clean venv and install server deps
        run: |
          python -m venv .venv
          .venv/bin/python -m pip install --upgrade pip
          .venv/bin/python -m pip install -r requirements-server.txt pytest

      - name: Compile and test
        run: |
          .venv/bin/python -m compileall -q .
          .venv/bin/python -m pytest -q
          .venv/bin/python test_npc_protocol.py
          .venv/bin/python test_combat_protocol.py