name: AERIS-10 CI

on:
  pull_request:
    branches: [main, develop]
  push:
    branches: [main, develop]
  schedule:
    - cron: "0 7 * * *"   # Nightly 07:00 UTC — slow-path fuzz
  workflow_dispatch:

jobs:
  # ===========================================================================
  # Python: lint (ruff), syntax check (py_compile), unit tests (pytest)
  # CI structure proposed by hcm444 — uses uv for dependency management
  # ===========================================================================
  python-tests:
    name: Python Lint + Tests
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - uses: astral-sh/setup-uv@v5

      - name: Install dependencies
        run: uv sync --group dev

      - name: Ruff lint (whole repo)
        run: uv run ruff check .

      - name: Syntax check (py_compile)
        run: |
          uv run python - <<'PY'
          import py_compile
          from pathlib import Path

          skip = {".git", "__pycache__", ".venv", "venv", "docs"}
          for p in Path(".").rglob("*.py"):
              if skip & set(p.parts):
                  continue
              py_compile.compile(str(p), doraise=True)
          PY

      - name: Unit tests
        run: >
          uv run pytest
          9_Firmware/9_3_GUI/test_GUI_V65_Tk.py
          9_Firmware/9_3_GUI/test_v7.py
          -v --tb=short

  # ===========================================================================
  # MCU Firmware Unit Tests (20 tests)
  # Bug regression (15) + Gap-3 safety tests (5)
  # ===========================================================================
  mcu-tests:
    name: MCU Firmware Tests
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install build tools
        run: sudo apt-get update && sudo apt-get install -y build-essential

      - name: Build and run MCU tests
        run: make test
        working-directory: 9_Firmware/9_1_Microcontroller/tests

  # ===========================================================================
  # FPGA RTL Regression (25 testbenches + lint)
  # ===========================================================================
  fpga-regression:
    name: FPGA Regression
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install Icarus Verilog
        run: sudo apt-get update && sudo apt-get install -y iverilog

      - name: Run full FPGA regression
        run: bash run_regression.sh
        working-directory: 9_Firmware/9_2_FPGA

  # ===========================================================================
  # Cross-Layer Contract Tests (Python ↔ Verilog ↔ C)
  # Validates opcode maps, bit widths, packet layouts, and round-trip
  # correctness across FPGA RTL, Python GUI, and STM32 firmware.
  # ===========================================================================
  cross-layer-tests:
    name: Cross-Layer Contract Tests
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - uses: astral-sh/setup-uv@v5

      - name: Install dependencies
        run: uv sync --group dev

      - name: Install Icarus Verilog
        run: sudo apt-get update && sudo apt-get install -y iverilog

      - name: Run cross-layer contract tests
        run: >
          uv run pytest
          9_Firmware/tests/cross_layer/test_cross_layer_contract.py
          -v --tb=short

  # ===========================================================================
  # DDC Co-Sim Fuzz (slow, nightly + manual dispatch only)
  # 100 random seeds through the full DDC pipeline vs Python radar_scene model.
  # Gated on schedule/workflow_dispatch to keep PRs fast; skipped on push/PR.
  # ===========================================================================
  fpga-fuzz:
    name: FPGA DDC Fuzz (slow)
    runs-on: ubuntu-latest
    if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - uses: astral-sh/setup-uv@v5

      - name: Install dependencies
        run: uv sync --group dev

      - name: Install Icarus Verilog
        run: sudo apt-get update && sudo apt-get install -y iverilog

      - name: Run DDC fuzz (100-seed sweep)
        run: >
          uv run pytest -m slow
          9_Firmware/tests/cross_layer/test_ddc_cosim_fuzz.py
          -v --tb=short