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GoveeCSharpConnector/Services/GoveeApiService.cs

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+using System.Net.Http.Json;
+using System.Text;
+using System.Text.Json;
+using GoveeCSharpConnector.Interfaces;
+using GoveeCSharpConnector.Objects;
+
+namespace GoveeCSharpConnector.Services;
+
+public class GoveeApiService : IGoveeApiService
+{
+    private string _apiKey = string.Empty;
+    private const string GoveeApiAddress = "https://developer-api.govee.com/v1";
+    private readonly HttpClient _httpClient = new();
+
+    /// <inheritdoc/>
+    public void SetApiKey(string apiKey)
+    {
+        _apiKey = apiKey;
+        _httpClient.DefaultRequestHeaders.Add("Govee-API-Key", _apiKey);
+    }
+    /// <inheritdoc/>
+    public string GetApiKey()
+    {
+        return _apiKey;
+    }
+    /// <inheritdoc/>
+    public void RemoveApiKey()
+    {
+        _apiKey = string.Empty;
+        _httpClient.DefaultRequestHeaders.Remove("Govee-Api-Key");
+    }
+    /// <inheritdoc/>
+    public async Task<List<GoveeApiDevice>> GetDevices()
+    {
+        var response = await _httpClient.GetFromJsonAsync<GoveeResponse>($"{GoveeApiAddress}/devices");
+        
+        return response.Data.Devices;
+    }
+    /// <inheritdoc/>
+    public async Task<GoveeApiState> GetDeviceState(string deviceId, string deviceModel)
+    {
+        return await _httpClient.GetFromJsonAsync<GoveeApiState>($"{GoveeApiAddress}/devices/state?device={deviceId}&model={deviceModel}");
+    }
+    /// <inheritdoc/>
+    public async Task ToggleState(string deviceId, string deviceModel, bool on)
+    {
+        await SendCommand(deviceId, deviceModel, "turn", on ? "on" : "off");
+    }
+    /// <inheritdoc/>
+    public async Task SetBrightness(string deviceId, string deviceModel, int value)
+    {
+        await SendCommand(deviceId, deviceModel, "brightness", value);
+    }
+    /// <inheritdoc/>
+    public async Task SetColor(string deviceId, string deviceModel, RgbColor color)
+    {
+        await SendCommand(deviceId, deviceModel, "color", color);
+    }
+    /// <inheritdoc/>
+    public async Task SetColorTemp(string deviceId, string deviceModel, int value)
+    {
+        await SendCommand(deviceId, deviceModel, "colorTem", value);
+    }
+
+    private async Task SendCommand(string deviceId, string deviceModel, string command, object commandObject)
+    {
+        var commandRequest = new GoveeApiCommand()
+        {
+            Device = deviceId,
+            Model = deviceModel,
+            Cmd = new Command()
+            {
+                Name = command,
+                Value = commandObject
+            }
+        };
+        var httpContent = new StringContent(JsonSerializer.Serialize(commandRequest), Encoding.UTF8, "application/json");
+        var response = await _httpClient.PutAsync($"{GoveeApiAddress}/devices/control", httpContent);
+        if (!response.IsSuccessStatusCode)
+            throw new Exception($"Govee Api Request failed. Status code: {response.StatusCode}, Message: {response.Content}");
+    }
+}