First commit

Backend/MonitorAgent/MonitorAgent.API/Contracts/LoadAverageResponse.cs

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+namespace MonitorAgent.API.Contracts;
+
+public record class LoadAverageResponse(decimal[] LoadAverage);

Backend/MonitorAgent/MonitorAgent.API/Contracts/MemoryResponse.cs

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+namespace MonitorAgent.API.Contracts;
+
+public record class MemoryResponse
+(
+    int MemTotal,
+    int MemFree,
+    int MemAvailable,
+    int SwapTotal,
+    int SwapFree
+);

Backend/MonitorAgent/MonitorAgent.API/Controllers/MonitorController.cs

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+using Microsoft.AspNetCore.Mvc;
+using MonitorAgent.API.Contracts;
+using MonitorAgent.Core.Abstraction;
+namespace MonitorAgent.API.Controllers;
+
+[ApiController]
+[Route("[controller]")]
+public class MonitorController(IMonitorService monitorService) : ControllerBase
+{
+    [HttpGet("uptime")]
+    public async Task<ActionResult<decimal>> GetUptimeAsync(CancellationToken cancellationToken = default)
+    {
+        var uptime = await monitorService.GetUptimeAsync(cancellationToken);
+        return Ok(uptime);
+    }
+
+    [HttpGet("memory")]
+    public async Task<ActionResult<MemoryResponse>> GetMemoryAsync(CancellationToken cancellationToken = default)
+    {
+        var memInfo = await monitorService.GetMemoryInfoAsync(cancellationToken);
+        var response = new MemoryResponse(
+            memInfo.MemTotal,
+            memInfo.MemFree,
+            memInfo.MemAvailable,
+            memInfo.SwapTotal,
+            memInfo.SwapFree
+        );
+
+        return Ok(response);
+    }
+    
+    [HttpGet("loadavg")]
+    public async Task<ActionResult<LoadAverageResponse>> GetActionResultAsync(CancellationToken cancellationToken = default)
+    {
+        var response = new LoadAverageResponse(await monitorService.GetLoadAverageAsync(cancellationToken));
+        return Ok(response);
+    }
+}

Backend/MonitorAgent/MonitorAgent.API/MonitorAgent.API.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.9" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="10.2.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MonitorAgent.Core\MonitorAgent.Core.csproj" />
+    <ProjectReference Include="..\MonitorAgent.Application\MonitorAgent.Application.csproj" />
+  </ItemGroup>
+
+</Project>

Backend/MonitorAgent/MonitorAgent.API/MonitorAgent.API.http

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+@MonitorAgent.API_HostAddress = http://localhost:5170
+
+GET {{MonitorAgent.API_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

Backend/MonitorAgent/MonitorAgent.API/Program.cs

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+using MonitorAgent.Core.Abstraction;
+using MonitorAgent.Application.Services;
+
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
+builder.Services.AddOpenApi();
+
+builder.Services.AddEndpointsApiExplorer();
+builder.Services.AddSwaggerGen();
+
+builder.Services.AddScoped<IMonitorService, MonitorService>();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.MapOpenApi();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.UseSwagger().UseSwaggerUI();
+
+app.Run();

Backend/MonitorAgent/MonitorAgent.API/Properties/launchSettings.json

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+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "http://localhost:5170",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "https://localhost:7032;http://localhost:5170",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

Backend/MonitorAgent/MonitorAgent.API/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

Backend/MonitorAgent/MonitorAgent.Application/MonitorAgent.Application.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <ItemGroup>
+    <ProjectReference Include="..\MonitorAgent.Core\MonitorAgent.Core.csproj" />
+  </ItemGroup>
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Backend/MonitorAgent/MonitorAgent.Application/Services/MonitorService.cs

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+using MonitorAgent.Core.Abstraction;
+using MonitorAgent.Core.Models;
+using System.Diagnostics;
+using System.Globalization;
+using System.Text.RegularExpressions;
+namespace MonitorAgent.Application.Services;
+
+public class MonitorService : IMonitorService
+{
+    // private static async Task<string> StartProcessAsync(
+    //     string fileName, string arguments, CancellationToken cancellationToken = default)
+    // {
+    //     using var process = new Process
+    //     {
+    //         StartInfo = new ProcessStartInfo
+    //         {
+    //             FileName = fileName,
+    //             Arguments = arguments,
+    //             UseShellExecute = false,
+    //             RedirectStandardOutput = true,
+    //             RedirectStandardError = true
+    //         }
+    //     };
+
+    //     process.Start();
+        
+    //     return await process.StandardOutput.ReadToEndAsync(cancellationToken);
+    // }
+
+    public async Task<decimal> GetUptimeAsync(CancellationToken cancellationToken = default)
+    {
+        var uptime = await File.ReadAllTextAsync("/proc/uptime", cancellationToken);
+        return decimal.Parse(uptime.Split()[1], CultureInfo.InvariantCulture);
+    }
+
+    public async Task<MemoryInfo> GetMemoryInfoAsync(CancellationToken cancellationToken = default)
+    {
+        var memInfo = new MemoryInfo();
+
+        var raw = (await File.ReadAllTextAsync("/proc/meminfo", cancellationToken)).Split(':', '\n');
+        for (int i = 0; i < raw.Length - 1; i++)
+        {
+            switch (raw[i].ToLower())
+            {
+                case "memtotal":
+                    memInfo.MemTotal = ParseInt(raw[i + 1]);
+                    break;
+                case "memfree":
+                    memInfo.MemFree = ParseInt(raw[i + 1]);
+                    break;
+                case "memavailable":
+                    memInfo.MemAvailable = ParseInt(raw[i + 1]);
+                    break;
+                case "swaptotal":
+                    memInfo.SwapTotal = ParseInt(raw[i + 1]);
+                    break;
+                case "swapfree":
+                    memInfo.SwapFree = ParseInt(raw[i + 1]);
+                    break;
+            }
+        }
+
+        return memInfo;
+    }
+
+    public async Task<decimal[]> GetLoadAverageAsync(CancellationToken cancellationToken = default)
+    {
+        var raw = (await File.ReadAllTextAsync("/proc/loadavg", cancellationToken)).Split();
+        var loadavg = new decimal[3];
+
+        for (int i = 0; i < loadavg.Length; i++)
+            loadavg[i] = decimal.Parse(raw[i], CultureInfo.InvariantCulture);
+
+        return loadavg;
+    }
+    
+    public static int ParseInt(string str) => int.Parse(Regex.Match(str, @"\d+").Value);
+}

Backend/MonitorAgent/MonitorAgent.Core/Abstraction/IMonitorService.cs

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+using MonitorAgent.Core.Models;
+
+namespace MonitorAgent.Core.Abstraction;
+
+public interface IMonitorService
+{
+    public Task<decimal> GetUptimeAsync(CancellationToken cancellationToken = default);
+    
+    public Task<MemoryInfo> GetMemoryInfoAsync(CancellationToken cancellationToken = default);
+
+    public Task<decimal[]> GetLoadAverageAsync(CancellationToken cancellationToken = default);
+}

Backend/MonitorAgent/MonitorAgent.Core/Models/MemoryInfo.cs

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+namespace MonitorAgent.Core.Models;
+
+public class MemoryInfo
+{
+    public int MemTotal { get; set; }
+    public int MemFree { get; set; }
+    public int MemAvailable { get; set; }
+    public int SwapTotal { get; set; }
+    public int SwapFree { get; set; }
+}

Backend/MonitorAgent/MonitorAgent.Core/MonitorAgent.Core.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

Backend/MonitorAgent/MonitorAgent.slnx

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+<Solution>
+  <Project Path="MonitorAgent.API/MonitorAgent.API.csproj" />
+  <Project Path="MonitorAgent.Application/MonitorAgent.Application.csproj" />
+  <Project Path="MonitorAgent.Core/MonitorAgent.Core.csproj" />
+  
+</Solution>