Remove no longer needed LoginCacheMinutes, add optional endpoints to check runtime configs

Author: DrEsteban

docker-compose.example.yml

@@ -11,7 +11,6 @@ services:
       - "Tesla__Email=<email>"
       - "Tesla__Password=<password>"
       - "Tesla__Host=<ip of the gateway>"
-      - "Tesla__LoginCacheMinutes=10"
       - "ResponseCacheDurationSeconds=3"
       - "Logging__Console__TimestampFormat=[MM/dd/yy h:mm:ss tt] "
       - "APPLICATIONINSIGHTS_CONNECTION_STRING=<optional: if you want to log to Azure>"

src/Models/TeslaConfiguration.cs

@@ -38,11 +38,6 @@ public class TeslaConfiguration
     [RequiredIf(nameof(Enabled), true)]
     public string RequestHost { get; set; } = "powerwall";
 
-    /// <summary>
-    /// How long to cache the login before fetching a new one
-    /// </summary>
-    public int LoginCacheMinutes { get; set; } = 10;
-
     public TeslaLoginRequest GetTeslaLoginRequest()
         => new()
         {

src/Program.cs

@@ -179,6 +179,11 @@
 // This endpoint provides Prometheus metrics about the app itself.
 // It is not the same as the Controller-based /metrics endpoint that proxies metrics from other services.
 app.UseOpenTelemetryPrometheusScrapingEndpoint("/appmetrics");
+if (app.Configuration.GetValue<bool>("EnableConfigEndpoints", false))
+{
+    app.MapGet("/config/tesla", (IOptions<TeslaConfiguration> config) => Results.Ok(config.Value));
+    app.MapGet("/config/enphase", (IOptions<EnphaseConfiguration> config) => Results.Ok(config.Value));
+}
 app.MapControllers();
 
 // Run the app:

src/Services/TeslaGatewayMetricsService.cs

@@ -17,7 +17,6 @@ public partial class TeslaGatewayMetricsService(
     IOptions<TeslaConfiguration> configuration,
     ILogger<TeslaGatewayMetricsService> logger) : MetricsServiceBase(factory.CreateClient(nameof(TeslaGatewayMetricsService)), logger)
 {
-    private readonly TimeSpan _loginCacheLength = TimeSpan.FromMinutes(configuration.Value.LoginCacheMinutes);
     private readonly TeslaConfiguration _configuration = configuration.Value;
     private volatile TeslaLoginResponse? _cachedLoginResponse;
 

src/appsettings.json

@@ -23,8 +23,7 @@
     "Host": "<ip_or_dns>",
     "Email": "",
     "Password": "",
-    "Username": "customer",
-    "LoginCacheMinutes": 10
+    "Username": "customer"
   },
   "Enphase": {
     "Enabled": false,