import warnings
from json import loads as json_loads

from kasa import Credentials, DeviceConfig, KasaException, SmartProtocol
from kasa.protocol import BaseTransport


class FakeSmartProtocol(SmartProtocol):
    def __init__(self, info):
        super().__init__(
            transport=FakeSmartTransport(info),
        )

    async def query(self, request, retry_count: int = 3):
        """Implement query here so can still patch SmartProtocol.query."""
        resp_dict = await self._query(request, retry_count)
        return resp_dict


class FakeSmartTransport(BaseTransport):
    def __init__(self, info):
        super().__init__(
            config=DeviceConfig(
                "127.0.0.123",
                credentials=Credentials(
                    username="dummy_user",
                    password="dummy_password",  # noqa: S106
                ),
            ),
        )
        self.info = info
        self.components = {
            comp["id"]: comp["ver_code"]
            for comp in self.info["component_nego"]["component_list"]
        }

    @property
    def default_port(self):
        """Default port for the transport."""
        return 80

    @property
    def credentials_hash(self):
        """The hashed credentials used by the transport."""
        return self._credentials.username + self._credentials.password + "hash"

    FIXTURE_MISSING_MAP = {
        "get_wireless_scan_info": ("wireless", {"ap_list": [], "wep_supported": False}),
        "get_auto_off_config": ("auto_off", {"delay_min": 10, "enable": False}),
        "get_led_info": (
            "led",
            {
                "led_rule": "never",
                "led_status": False,
                "night_mode": {
                    "end_time": 420,
                    "night_mode_type": "sunrise_sunset",
                    "start_time": 1140,
                    "sunrise_offset": 0,
                    "sunset_offset": 0,
                },
            },
        ),
        "get_connect_cloud_state": ("cloud_connect", {"status": 1}),
        "get_on_off_gradually_info": ("on_off_gradually", {"enable": True}),
        "get_latest_fw": (
            "firmware",
            {
                "fw_size": 0,
                "fw_ver": "1.0.5 Build 230801 Rel.095702",
                "hw_id": "",
                "need_to_upgrade": False,
                "oem_id": "",
                "release_date": "",
                "release_note": "",
                "type": 0,
            },
        ),
        "get_auto_update_info": (
            "firmware",
            {"enable": True, "random_range": 120, "time": 180},
        ),
    }

    async def send(self, request: str):
        request_dict = json_loads(request)
        method = request_dict["method"]
        params = request_dict["params"]
        if method == "multipleRequest":
            responses = []
            for request in params["requests"]:
                response = self._send_request(request)  # type: ignore[arg-type]
                response["method"] = request["method"]  # type: ignore[index]
                responses.append(response)
            return {"result": {"responses": responses}, "error_code": 0}
        else:
            return self._send_request(request_dict)

    def _handle_control_child(self, params: dict):
        """Handle control_child command."""
        device_id = params.get("device_id")
        request_data = params.get("requestData", {})

        child_method = request_data.get("method")
        child_params = request_data.get("params")

        info = self.info
        children = info["get_child_device_list"]["child_device_list"]

        for child in children:
            if child["device_id"] == device_id:
                info = child
                break

        # We only support get & set device info for now.
        if child_method == "get_device_info":
            return {"result": info, "error_code": 0}
        elif child_method == "set_device_info":
            info.update(child_params)
            return {"error_code": 0}

        raise NotImplementedError(
            "Method %s not implemented for children" % child_method
        )

    def _send_request(self, request_dict: dict):
        method = request_dict["method"]
        params = request_dict["params"]

        info = self.info
        if method == "control_child":
            return self._handle_control_child(params)
        elif method == "component_nego" or method[:4] == "get_":
            if method in info:
                return {"result": info[method], "error_code": 0}
            elif (
                missing_result := self.FIXTURE_MISSING_MAP.get(method)
            ) and missing_result[0] in self.components:
                warnings.warn(
                    UserWarning(
                        f"Fixture missing expected method {method}, try to regenerate"
                    ),
                    stacklevel=1,
                )
                return {"result": missing_result[1], "error_code": 0}
            else:
                raise KasaException(f"Fixture doesn't support {method}")
        elif method == "set_qs_info":
            return {"error_code": 0}
        elif method[:4] == "set_":
            target_method = f"get_{method[4:]}"
            info[target_method].update(params)
            return {"error_code": 0}

    async def close(self) -> None:
        pass

    async def reset(self) -> None:
        pass