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using DiskQueue;
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using LDClient.detection;
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using LDClient.network;
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using LDClient.utils;
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using LDClient.utils.loggers;
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using static System.Diagnostics.Process;
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using static System.Reflection.Assembly;
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namespace LDClient;
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/// <summary>
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/// This class represents the main class of the application.
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/// </summary>
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internal static class Program {
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/// <summary>
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/// Sleep period of the main thread of the application.
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/// </summary>
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private const int MainLoopDelayMs = 30000;
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/// <summary>
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/// Instance of a config loader.
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/// </summary>
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public static ConfigLoader Config { get; } = new();
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/// <summary>
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/// Default logger used throughout the application.
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/// </summary>
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public static ALogger DefaultLogger { get; } = ALogger.Current;
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/// <summary>
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/// Instance of an API client.
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/// </summary>
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private static IApiClient? DefaultApiClient { get; set; }
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/// <summary>
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/// Instance of an info fetcher.
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/// </summary>
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private static readonly InfoFetcher InfoFetcher = new(
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Config.FetchInfoMaxAttempts,
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Config.FetchInfoAttemptPeriod,
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Config.T32InfoLocation,
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Config.F32RemExecutable,
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Config.F32RemArguments,
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Config.T32RemSuccessExitCode,
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Config.T32RemWaitTimeoutMs
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);
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/// <summary>
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/// The main entry pint of the application.
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/// </summary>
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/// <returns>1 if something goes wrong, 0 otherwise.</returns>
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public static int Main() {
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// Make sure that there is only one running instance of this application.
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if (GetProcessesByName(Path.GetFileNameWithoutExtension(GetEntryAssembly()?.Location)).Length > 1) {
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DefaultLogger.Error("Another instance of the application is already running");
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return 1;
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}
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// Create an instance of an API client with all
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// the appropriate parameters defined in the config file.
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DefaultApiClient = new ApiClient(
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Config.ApiBaseAddress,
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Config.ApiPort,
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Config.ApiUsbEndPoint,
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Config.RetryPeriod, Config.MaxEntries,
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Config.MaxRetries,
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new PersistentQueue(Config.CacheFileName)
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);
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// Create a new process detector.
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IProcessDetection processProcessDetection = new ProcessDetection(
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Config.T32ProcessName,
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Config.DetectionPeriod,
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InfoFetcher,
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DefaultApiClient,
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new ProcessUtils()
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);
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// Create and start a new thread that periodically
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// resends filed payloads to the server.
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var apiClientThread = new Thread(DefaultApiClient.Run) {
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IsBackground = true
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};
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apiClientThread.Start();
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// Create and start a new thread that periodically checks
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// if the desired process is currently running or not.
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var processThread = new Thread(processProcessDetection.RunPeriodicDetection) {
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IsBackground = true
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};
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processThread.Start();
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// The main thread does "nothing"
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while (true) {
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Thread.Sleep(MainLoopDelayMs);
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}
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// The execution of the program should never reach this point.
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return 0;
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}
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}
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