Adds fleet status endpoint

Adds an endpoint to retrieve fleet status information.

This endpoint uses a Tesla API proxy to fetch the fleet status
based on provided VINs. It handles authentication using a bearer
token and sends a POST request to the /api/1/vehicles/fleet_status
endpoint.

Also introduces new data models to properly serialize/deserialize the fleet status response.

Source/ProofOfConcept/Models/FleetResponse.cs

@@ -0,0 +1,25 @@
+namespace ProofOfConcept.Models;
+
+using System.Collections.Generic;
+using System.Text.Json.Serialization;
+
+public class FleetRootResponse
+{
+    [JsonPropertyName("response")] public FleetResponse FleetResponse { get; set; } = new FleetResponse();
+}
+
+public class FleetResponse
+{
+    [JsonPropertyName("key_paired_vins")] public List<string> KeyPairedVins { get; set; } = new List<string>();
+    [JsonPropertyName("unpaired_vins")] public List<string> UnpairedVins { get; set; } = new List<string>();
+    [JsonPropertyName("vehicle_info")] public Dictionary<string, VehicleInfo> VehicleInfo { get; set; } = new Dictionary<string, VehicleInfo>();
+}
+
+public class VehicleInfo
+{
+    [JsonPropertyName("firmware_version")] public string FirmwareVersion { get; set; } = "";
+    [JsonPropertyName("vehicle_command_protocol_required")] public bool VehicleCommandProtocolRequired { get; set; }
+    [JsonPropertyName("discounted_device_data")] public bool DiscountedDeviceData { get; set; }
+    [JsonPropertyName("fleet_telemetry_version")] public string FleetTelemetryVersion { get; set; } = "";
+    [JsonPropertyName("total_number_of_keys")] public int TotalNumberOfKeys { get; set; }
+}

Source/ProofOfConcept/Program.cs

@@ -288,6 +288,22 @@ if (app.Environment.IsDevelopment())
     });
 }
 
+app.MapGet("FleetStatus", async (IHttpClientFactory httpClientFactory) =>
+{
+    string access_token = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6InFEc3NoM2FTV0cyT05YTTdLMzFWV0VVRW5BNCJ9.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.iMODkOXyzt0_TJfuBrojbYSU7Cx_lb8DRZ_zMz-yQxZlPUA-pITfqgqgwQEqagCUJ3wlfOSxi1OSitmxPrxr9MOT8A9KUgTOSIrPxD36JHWnBmQpbkDNqNkM4MLEbbM-95p8YnFJ0VuB9_fzz0CbJyOm_oUelA2JnNhIQ5uGfJojYPM2UKN0rUx6uMAuFgc4CslPY1P43crAXrFlH6B3D2Yk47w9Xeh-Vg_ZiX-nJqMzph_ciqYRuiySJMjM3ez7EheGy50BR_esz4muit89H3nq0rURWBN3-weauu2bcWnuYp0Nk5-zFuO3O_FKuLt-1HqYH3CAeTF2JRBJHim-hA";
+    
+    HttpClient client = httpClientFactory.CreateClient("InsecureClient");
+    client.BaseAddress = new Uri("https://tesla_command_proxy");
+    client.DefaultRequestHeaders.Add("Authorization", $"Bearer {access_token}");
+    
+    //Get fleet_status endpoint
+    var requestObject = new { vins = new string[] { "5YJ3E7EB7KF291652" } };
+    
+    HttpResponseMessage response = await client.PostAsJsonAsync("/api/1/vehicles/fleet_status", requestObject);
+    
+    return Results.Ok(response.Content.ReadAsStringAsync());
+});
+
 //Map static assets
 app.MapStaticAssets();
 

Source/ProofOfConcept/Services/MQTTClient.cs

@@ -5,9 +5,9 @@ namespace ProofOfConcept.Services;
 
 public class MQTTClient : IHostedService
 {
-    private ILogger<MQTTClient> logger;
-    private MQTTClientConfiguration configuration;
-    private MQTTServerConfiguration serverConfiguration;
+    private readonly ILogger<MQTTClient> logger;
+    private readonly MQTTClientConfiguration configuration;
+    private readonly MQTTServerConfiguration serverConfiguration;
 
     private readonly IMqttClient client;