r"""Smoke test for QET pending-device scene persistence.

Run with FreeCADCmd.exe, not system Python:

    D:\fc\run-FreeCAD-1.1.1\bin\FreeCADCmd.exe tests\manual\freecad_pending_device_scene_smoke.py
"""

import json
import os
import shutil
import sys
import tempfile
from pathlib import Path

import FreeCAD as App


REPO_ROOT = Path(__file__).resolve().parents[2]
MODULE_DIR = REPO_ROOT / "src" / "Mod" / "FreeCADExchange"
if str(MODULE_DIR) not in sys.path:
    sys.path.insert(0, str(MODULE_DIR))

import DeviceImport  # noqa: E402


def _close_doc(doc):
    if doc is None:
        return
    try:
        App.closeDocument(doc.Name)
    except Exception:
        pass


def _make_source_model(path):
    doc = App.newDocument("SmokeSourceModel")
    try:
        body = doc.addObject("Part::Box", "Body")
        body.Length = 10
        body.Width = 8
        body.Height = 6
        doc.recompute()
        doc.saveAs(str(path))
    finally:
        _close_doc(doc)


def _assert_close(actual, expected, label):
    if abs(float(actual) - float(expected)) > 1e-6:
        raise AssertionError("{0}: expected {1}, got {2}".format(label, expected, actual))


def main():
    temp_dir = Path(tempfile.mkdtemp(prefix="qet_pending_device_smoke_"))
    try:
        source_model = temp_dir / "device.FCStd"
        scene_file = temp_dir / "QETScene.FCStd"
        _make_source_model(source_model)

        scene = App.newDocument("QETSceneSmoke")
        root = DeviceImport._ensure_root_group(scene, None, "project-smoke")
        device_group, created = DeviceImport._ensure_device_group(
            scene,
            root,
            "element-smoke",
            "instance-smoke",
            str(source_model),
            "N600",
            0,
        )
        if not created:
            raise AssertionError("smoke device group should be newly created")
        DeviceImport._set_device_assembly_state(
            device_group,
            DeviceImport.ASSEMBLY_STATE_PENDING,
        )

        mount_target = scene.addObject("App::Part", "MountingPlate")
        mount_target.Label = "安装板"
        mount_target.Placement = App.Placement(App.Vector(100, 200, 300), App.Rotation())
        DeviceImport._ensure_string_property(
            mount_target,
            "QetCarrierKind",
            "QET Mount",
            "Smoke mount target kind",
            "mounting_plate",
        )

        DeviceImport.insert_pending_device(
            scene,
            device_group,
            mount_target=mount_target,
            mount_placement=App.Placement(App.Vector(10, 20, 30), App.Rotation()),
            mount_normal=App.Vector(0, 0, 1),
            mount_offset_mm=5.0,
        )
        device_group_name = device_group.Name
        scene.recompute()
        scene.saveAs(str(scene_file))
        _close_doc(scene)

        reopened = App.openDocument(str(scene_file))
        try:
            reopened_device = reopened.getObject(device_group_name)
            if reopened_device is None:
                raise AssertionError("reopened scene does not contain device group")
            if getattr(reopened_device, "QetAssemblyState", "") != DeviceImport.ASSEMBLY_STATE_PLACED:
                raise AssertionError("reopened device is not marked Placed")
            _assert_close(reopened_device.Placement.Base.x, 10.0, "placement x")
            _assert_close(reopened_device.Placement.Base.y, 20.0, "placement y")
            _assert_close(reopened_device.Placement.Base.z, 35.0, "placement z")
            if getattr(reopened_device, "QetMountHostName", "") != "MountingPlate":
                raise AssertionError("mount host name was not persisted")
            if getattr(reopened_device, "QetMountHostKind", "") != "mounting_plate":
                raise AssertionError("mount host kind was not persisted")
            if getattr(reopened_device, "QetMountOffsetMm", "") != "5.000000":
                raise AssertionError("mount offset was not persisted")
            normal_payload = json.loads(getattr(reopened_device, "QetMountHostNormalJson", "{}") or "{}")
            _assert_close(normal_payload.get("z", 0.0), 1.0, "normal z")
        finally:
            _close_doc(reopened)

        result_path = os.environ.get("QET_PENDING_DEVICE_SMOKE_RESULT", "").strip()
        if result_path:
            Path(result_path).write_text(
                json.dumps(
                    {
                        "ok": True,
                        "scene": str(scene_file),
                        "device": device_group_name,
                        "placement": {"x": 10.0, "y": 20.0, "z": 35.0},
                        "assembly_state": DeviceImport.ASSEMBLY_STATE_PLACED,
                        "mount_host": "MountingPlate",
                    },
                    ensure_ascii=False,
                    indent=2,
                ),
                encoding="utf-8",
            )
        print("SMOKE_OK scene={0}".format(scene_file))
        return 0
    finally:
        if os.environ.get("QET_KEEP_SMOKE_OUTPUT", "").strip() != "1":
            shutil.rmtree(str(temp_dir), ignore_errors=True)


if __name__ == "__main__":
    raise SystemExit(main())