using GoveeCSharpConnector.Interfaces;
using GoveeCSharpConnector.Objects;
using System.Collections.ObjectModel;

namespace GoveeCSharpConnector.Services;

public class GoveeService(IGoveeApiService apiService, IGoveeUdpService udpService) : IGoveeService {

    public string GoveeApiKey { get; set; }

    private readonly IGoveeApiService _APIService = apiService ??
        throw new ArgumentNullException(nameof(apiService));
    private readonly IGoveeUdpService _UDPService = udpService ??
        throw new ArgumentNullException(nameof(udpService));

    public List<GoveeDevice> GetDevices(bool onlyLan = true) {
        if (string.IsNullOrWhiteSpace(GoveeApiKey)) {
            throw new Exception("No Govee Api Key Set!");
        }
        _APIService.SetApiKey(GoveeApiKey);
        Task<GoveeResponse> goveeResponse = _APIService.GetDevicesResponseAsync();
        goveeResponse.Wait();
        List<GoveeApiDevice> apiDevices = goveeResponse.Result.Data.Devices;
        List<GoveeDevice> devices = apiDevices.Select(apiDevice => new GoveeDevice() {
            DeviceId = apiDevice.DeviceId,
            DeviceName = apiDevice.DeviceName,
            Model = apiDevice.Model,
            Address = "onlyAvailableOnUdpRequest"
        }).ToList();
        if (!onlyLan) {
            return devices;
        }
        if (!_UDPService.IsListening()) {
            Task task = _UDPService.StartUdpListenerAsync();
            task.Wait();
        }
        Task<IList<GoveeUdpDevice>> goveeUdpDevicesTask = _UDPService.GetDevicesAsync();
        goveeUdpDevicesTask.Wait();
        ReadOnlyCollection<GoveeUdpDevice> udpDevices = new(goveeUdpDevicesTask.Result);
        List<GoveeDevice> combinedDevices = (from goveeDevice in devices
                                             let matchingDevice = udpDevices.FirstOrDefault(x => x.Device == goveeDevice.DeviceId)
                                             where matchingDevice is not null
                                             select
                                                 new GoveeDevice {
                                                     DeviceId = goveeDevice.DeviceId,
                                                     DeviceName = goveeDevice.DeviceName,
                                                     Model = goveeDevice.Model,
                                                     Address = matchingDevice.IP
                                                 }).ToList();
        return combinedDevices;
    }

    public GoveeState GetDeviceState(GoveeDevice goveeDevice, bool useUdp = true) {
        if (useUdp) {
            if (!_UDPService.IsListening()) {
                Task task = _UDPService.StartUdpListenerAsync();
                task.Wait();
            }
            if (string.IsNullOrWhiteSpace(goveeDevice.Address)) {
                throw new Exception("Device not available via Udp/Lan");
            }
            Task<GoveeUdpState> goveeUdpStateTask = _UDPService.GetStateAsync(goveeDevice.Address);
            goveeUdpStateTask.Wait();
            return new GoveeState() {
                State = goveeUdpStateTask.Result.OnOff,
                Brightness = goveeUdpStateTask.Result.Brightness,
                Color = goveeUdpStateTask.Result.Color,
                ColorTempInKelvin = goveeUdpStateTask.Result.ColorTempInKelvin
            };
        }
        if (string.IsNullOrWhiteSpace(GoveeApiKey)) {
            throw new Exception("No Govee Api Key Set!");
        }
        _APIService.SetApiKey(GoveeApiKey);
        Task<GoveeApiState> goveeApiStateTask = _APIService.GetDeviceStateAsync(goveeDevice.DeviceId, goveeDevice.Model);
        goveeApiStateTask.Wait();
        return new GoveeState {
            State = goveeApiStateTask.Result.Properties.PowerState,
            Brightness = goveeApiStateTask.Result.Properties.Brightness,
            Color = goveeApiStateTask.Result.Properties.Color,
            ColorTempInKelvin = goveeApiStateTask.Result.Properties.ColorTemp
        };
    }

    public void ToggleState(GoveeDevice goveeDevice, bool on, bool useUdp = true) {
        if (useUdp) {
            if (string.IsNullOrWhiteSpace(goveeDevice.Address)) {
                throw new Exception("Device not available via Udp/Lan");
            }
            _UDPService.ToggleDevice(goveeDevice.Address, on);
            return;
        }
        if (string.IsNullOrWhiteSpace(GoveeApiKey)) {
            throw new Exception("No Govee Api Key Set!");
        }
        _APIService.SetApiKey(GoveeApiKey);
        Task<HttpResponseMessage> httpResponseMessageTask = _APIService.ToggleStateAsync(goveeDevice.DeviceId, goveeDevice.Model, on);
        httpResponseMessageTask.Wait();
    }

    public void SetBrightness(GoveeDevice goveeDevice, int value, bool useUdp = true) {
        if (useUdp) {
            if (string.IsNullOrWhiteSpace(goveeDevice.Address)) {
                throw new Exception("Device not available via Udp/Lan");
            }
            _UDPService.SetBrightness(goveeDevice.Address, value);
            return;
        }
        if (string.IsNullOrWhiteSpace(GoveeApiKey)) {
            throw new Exception("No Govee Api Key Set!");
        }
        _APIService.SetApiKey(GoveeApiKey);
        Task<HttpResponseMessage> httpResponseMessageTask = _APIService.SetBrightnessAsync(goveeDevice.DeviceId, goveeDevice.Model, value);
        httpResponseMessageTask.Wait();
    }

    public void SetColor(GoveeDevice goveeDevice, RgbColor color, bool useUdp = true) {
        if (useUdp) {
            if (string.IsNullOrWhiteSpace(goveeDevice.Address)) {
                throw new Exception("Device not available via Udp/Lan");
            }
            _UDPService.SetColor(goveeDevice.Address, color);
            return;
        }
        if (string.IsNullOrWhiteSpace(GoveeApiKey)) {
            throw new Exception("No Govee Api Key Set!");
        }

        _APIService.SetApiKey(GoveeApiKey);
        Task<HttpResponseMessage> httpResponseMessageTask = _APIService.SetColorAsync(goveeDevice.DeviceId, goveeDevice.Model, color);
        httpResponseMessageTask.Wait();
    }

    public void SetColorTemp(GoveeDevice goveeDevice, int value, bool useUdp = true) {
        if (useUdp) {
            if (string.IsNullOrWhiteSpace(goveeDevice.Address)) {
                throw new Exception("Device not available via Udp/Lan");
            }
            _UDPService.SetColorTemp(goveeDevice.Address, value);
            return;
        }
        if (string.IsNullOrWhiteSpace(GoveeApiKey)) {
            throw new Exception("No Govee Api Key Set!");
        }
        _APIService.SetApiKey(GoveeApiKey);
        Task<HttpResponseMessage> httpResponseMessageTask = _APIService.SetColorTempAsync(goveeDevice.DeviceId, goveeDevice.Model, value);
        httpResponseMessageTask.Wait();
    }
}