import { Channel, Device } from "freeathome-local-api-client";
import {
  Characteristic,
  CharacteristicValue,
  PlatformAccessory,
  Service,
  WithUUID,
} from "homebridge";
import { WeatherStationBrightnessSensorAccessory } from "../src/brightnessSensorAccessory.js";
import { FreeAtHomeContext } from "../src/freeAtHomeContext.js";
import {
  createPlatformAccessory,
  MockFreeAtHomeHomebridgePlatform,
} from "./platform.mock.js";

describe("Brightness Sensor Accessory", () => {
  let channel: Channel;
  let device: Device;
  let platform: MockFreeAtHomeHomebridgePlatform;
  let platformAccessory: PlatformAccessory<FreeAtHomeContext>;

  beforeEach(() => {
    channel = {
      outputs: {
        dp1: {
          pairingID: 1027,
        },
      },
    };
    device = {};
    platform = new MockFreeAtHomeHomebridgePlatform();
    platformAccessory = createPlatformAccessory("Brightness Sensor Accessory");
    platformAccessory.context = {
      channel: channel,
      channelId: "ch1234",
      device: device,
      deviceSerial: "ABB7xxxxxxxx",
    };
  });

  it("should throw if expected data points are missing on channel", () => {
    channel.outputs = undefined;

    expect(
      () =>
        new WeatherStationBrightnessSensorAccessory(platform, platformAccessory)
    ).toThrowError("Channel lacks expected input or output data points.");
  });

  it("should be created", async () => {
    const accessory = new WeatherStationBrightnessSensorAccessory(
      platform,
      platformAccessory
    );
    expect(accessory).toBeTruthy();
    const instance = accessory as unknown as {
      service: Service;
    };
    const characteristic = instance.service.getCharacteristic(
      accessory.platform.Characteristic.CurrentAmbientLightLevel
    );
    expect(await characteristic.handleGetRequest()).toBe(0.0001);
  });

  it("should be created with non-default state", async () => {
    platformAccessory.context.channel.outputs!.dp1.value = "12.3";
    const accessory = new WeatherStationBrightnessSensorAccessory(
      platform,
      platformAccessory
    );
    expect(accessory).toBeTruthy();
    const instance = accessory as unknown as {
      service: Service;
    };
    const characteristic = instance.service.getCharacteristic(
      accessory.platform.Characteristic.CurrentAmbientLightLevel
    );
    const value = await characteristic.handleGetRequest();
    expect(value).not.toBeNull();
    expect(Math.abs((value as number) - 12.3)).toBeLessThan(0.0001);
  });

  it("should ignore update if datapoint is unknown", async () => {
    const accessory = new WeatherStationBrightnessSensorAccessory(
      platform,
      platformAccessory
    );
    const instance = accessory as unknown as {
      service: Service;
      doUpdateDatapoint: (
        acccessoryDisplayType: string,
        service: Service,
        characteristic: WithUUID<new () => Characteristic>,
        characteristicValue: CharacteristicValue
      ) => void;
    };
    const spy = spyOn(instance, "doUpdateDatapoint");
    const characteristic = instance.service.getCharacteristic(
      accessory.platform.Characteristic.CurrentAmbientLightLevel
    );
    expect(await characteristic.handleGetRequest()).toBe(0.0001);
    accessory.updateDatapoint("test", "0.001");
    expect(spy).not.toHaveBeenCalled();
  });

  it("should process update if the datapoint is known", async () => {
    const accessory = new WeatherStationBrightnessSensorAccessory(
      platform,
      platformAccessory
    );
    const instance = accessory as unknown as {
      service: Service;
      doUpdateDatapoint: (
        acccessoryDisplayType: string,
        service: Service,
        characteristic: WithUUID<new () => Characteristic>,
        characteristicValue: CharacteristicValue
      ) => void;
    };
    const spy = spyOn(instance, "doUpdateDatapoint");
    const characteristic = instance.service.getCharacteristic(
      accessory.platform.Characteristic.CurrentAmbientLightLevel
    );
    expect(await characteristic.handleGetRequest()).toBe(0.0001);
    accessory.updateDatapoint("dp1", "12.3");
    expect(spy).toHaveBeenCalledWith(
      "Brightness Sensor",
      instance.service,
      accessory.platform.Characteristic.CurrentAmbientLightLevel,
      12.3
    );
  });
});