name: CI

on:
  push:
    branches: [ master, main ]
  pull_request:
    branches: [ master, main ]
  workflow_dispatch:
    inputs:
      enable_cross_build:
        description: "Enable RK3588 cross build job"
        required: false
        default: "false"

jobs:
  host-build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y ninja-build clang-format cppcheck

      - name: Quality gates (clang-format + cppcheck on changed files)
        shell: bash
        run: |
          set -euo pipefail
          python3 - <<'PY'
          import json, os, subprocess, sys

          def sh(*args):
              return subprocess.check_output(list(args), text=True).strip()

          event = os.environ.get('GITHUB_EVENT_NAME','')
          event_path = os.environ.get('GITHUB_EVENT_PATH','')
          payload = {}
          if event_path:
              with open(event_path, 'r', encoding='utf-8') as f:
                  payload = json.load(f)
          base = None
          head = os.environ.get('GITHUB_SHA','HEAD')

          if event == 'pull_request':
              base = (((payload.get('pull_request') or {}).get('base') or {}).get('sha'))
          else:
              base = payload.get('before')
              if base and set(base) == {'0'}:
                  base = None

          if not base:
              # Fallback to previous commit if possible.
              try:
                  base = sh('git','rev-parse','HEAD~1')
              except Exception:
                  base = None

          if base:
              diff = subprocess.check_output(['git','diff','--name-only',f'{base}...{head}'], text=True)
              paths = [p.strip() for p in diff.splitlines() if p.strip()]
          else:
              paths = [p.strip() for p in sh('git','ls-files').splitlines() if p.strip()]

          exts = ('.c','.cc','.cpp','.cxx','.h','.hh','.hpp','.hxx')
          files = []
          for p in paths:
              if not p.endswith(exts):
                  continue
              if p.startswith(('third_party/','build/','.git/')):
                  continue
              files.append(p)
          if not files:
              print('No C/C++ files changed; skipping format/cppcheck.')
              sys.exit(0)

          # clang-format
          subprocess.check_call(['clang-format','--version'])
          subprocess.check_call(['clang-format','--dry-run','--Werror',*files])

          # cppcheck
          subprocess.check_call(['cppcheck','--version'])
          subprocess.check_call([
              'cppcheck',
              '--error-exitcode=1',
              '--enable=warning,style,performance,portability',
              '--inline-suppr',
              '--suppress=missingIncludeSystem',
              '--std=c++17',
              '-I','include',
              '-I','third_party',
              *files,
          ])
          PY

      - name: Configure & build (host)
        env:
          CMAKE_ARGS: -DBUILD_TESTS=ON
        run: |
          ./scripts/build_host.sh

      - name: Run unit tests
        run: |
          ctest --test-dir build/host --output-on-failure

  rk3588-cross-build:
    if: github.event_name == 'workflow_dispatch' && github.event.inputs.enable_cross_build == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Install toolchain
        run: |
          sudo apt-get update
          sudo apt-get install -y ninja-build gcc-aarch64-linux-gnu g++-aarch64-linux-gnu
      - name: Build (cross)
        env:
          RK3588_SYSROOT: /opt/rk3588-sysroot
        run: |
          mkdir -p "$RK3588_SYSROOT"
          ./scripts/build_board.sh