Merge pull request 'feature/service-detection' (#33) from feature/service-detection into staging

Reviewed-on: #33

Watcher/Controllers/MonitoringController.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
@@ -80,10 +81,8 @@ public class MetricDto
 
 public class ServiceDto
 {
-    public int ServerId { get; set; } // Vom Watcher-Server zugewiesene ID des Hosts
-    public String? ContainerId { get; set; }
-    public String? Image { get; set; }
-    public String? Name { get; set; }
+    public required int Server_id { get; set; } // Vom Watcher-Server zugewiesene ID des Hosts
+    public required JsonContent Containers { get; set; }
 }
 
 [ApiController]
@@ -234,33 +233,77 @@ public class MonitoringController : Controller
                 .Select(e => e.ErrorMessage)
                 .ToList();
 
-            _logger.LogError("Ungültiger ServiceDetection-Payload.");
-            return BadRequest(new { error = "Ungültiger Payload", details = errors });
+            _logger.LogError("Invalid ServiceDetection-Payload.");
+            return BadRequest(new { error = "Invalid Payload", details = errors });
         }
 
-        // Metrics für Container, die zu ServerId gehören, löschen
+        // Json zu was brauchbarem machen
+        string containersJson = await dto.Containers.ReadAsStringAsync();
+        List<Container> newContainers = JsonSerializer.Deserialize<List<Container>>(containersJson)?? new List<Container>();;
 
-        // Container, die zu ServerId gehören löschen
+        foreach (Container c in newContainers)
+        {
+            c.ServerId = dto.Server_id;
+            // Debug Logs
+            // TODO entfernen wenn fertig getestet
+            Console.WriteLine("---------");
+            Console.WriteLine("ServerId: " + c.ServerId);
+            Console.WriteLine("ContainerId: " + c.ContainerId);
+            Console.WriteLine("Name: " + c.Name);
+            Console.WriteLine("Image: " + c.Image);
+            Console.WriteLine("---------");
 
-        // Container neu in Datenbank einlesen
+        }
+
+        // Container Objekte erstellen
+        //List<Container> newContainers = ParseServiceDiscoveryInput(dto.Server_id, containers);
+
+        // Liste aller Container, die bereits der übergebenen ServerId zugewiesen sind
+        List<Container> existingContainers = _context.Containers
+            .Where(c => c.ServerId == dto.Server_id)
+            .ToList();
+
+
+        // Logik, um Container, die mit dem Payload kamen zu verarbeiten
+        foreach (Container c in newContainers)
+        {
+            // Überprüfen, ob ein übergebener Container bereits für den Host registriert ist
+            if (existingContainers.Contains(c))
+            {
+                _logger.LogInformation("Container with id " + c.ContainerId + " already exists.");
+            }
+            // Container auf einen Host/Server registrieren
+            else
+            {
+                // Container in Datenbank einlesen
                 try
                 {
-            Container container = new Container
-            {
-                ServerId = dto.ServerId,
-                ContainerId = dto.ContainerId,
-                Image = dto.Name,
-                Name = dto.Name
-            };
-
-            _logger.LogInformation(container.Name + " added for Host " + container.ServerId);
-
-            _context.Containers.Add(container);
+                    _context.Containers.Add(c);
                     await _context.SaveChangesAsync();
+                    _logger.LogInformation(c.Name + " added for Host " + c.ServerId);
                 }
                 catch (SqliteException e)
                 {
-            _logger.LogError("ServiceDiscovery failed: " + e.Message);
+                    _logger.LogError("Error writing new Containers to Database: " + e.Message);
+                }
+            }
+        }
+
+        // Logik um abgeschaltene Container aus der Datenbank zu entfernen
+        foreach (Container c in existingContainers)
+        {
+            // Abfrage, ob bereits vorhandener Container im Payload vorhanden war
+            if (!newContainers.Contains(c))
+            {
+                // Container entfernen
+                _context.Containers.Remove(c);
+                await _context.SaveChangesAsync();
+
+                // Metrics für den Container entfernen
+                //Todo 
+
+                _logger.LogInformation("Container " + c.Name + " (" + c.Id + ") on Host-Id " + c.ServerId + " was successfully removed from the database.");
+            }
         }
 
         return Ok();
@@ -268,7 +311,6 @@ public class MonitoringController : Controller
     }
 
     // Durchschnittliche Werte Berechnen
-    [HttpGet("median")]
     public async Task<IActionResult> CalculateMedian(string Metric, int HoursToMonitor, int ServerId)
     {
         // Aktuelle Zeit - X Stunden = letzter Wert, der berücksichtigt werden soll
@@ -368,4 +410,13 @@ public class MonitoringController : Controller
         return metric_input;
     }
 
+    private List<Container> ParseServiceDiscoveryInput(int server_id, List<Container> containers)
+    {
+        List<Container> containerList = new List<Container>();
+
+        // JSON-Objekt auslesen und Container-Objekte erstellen
+        
+
+        return containerList;
+    }
 }

Watcher/Program.cs

@@ -1,5 +1,6 @@
 using Microsoft.AspNetCore.Authentication.OpenIdConnect;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.OpenApi.Models;
 
 using Serilog;
 
@@ -36,11 +37,17 @@ builder.Services.AddHttpContextAccessor();
 
 // Storage Singleton
 builder.Services.AddSingleton<IDashboardStore, DashboardStore>();
+builder.Services.AddSingleton<ISystemStore, SystemStore>();
 
 // Background Services
 builder.Services.AddHostedService<NetworkCheck>();
 builder.Services.AddHostedService<DatabaseCheck>();
 
+// Swagger API-Dokumentation
+builder.Services.AddSwaggerGen(options =>
+{
+    options.SwaggerDoc("v1", new OpenApiInfo { Title = "Watcher-Server API", Version = "v1" });
+});
 
 // ---------- Konfiguration ----------
 DotNetEnv.Env.Load();
@@ -204,19 +211,27 @@ using (var scope = app.Services.CreateScope())
 if (!app.Environment.IsDevelopment())
 {
     app.UseExceptionHandler("/Home/Error");
-    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
     app.UseHsts();
 }
 
-
 app.UseHttpsRedirection();
+app.UseStaticFiles();
+
 app.UseRouting();
 
+// 🔹 Swagger aktivieren
+app.UseSwagger();
+app.UseSwaggerUI(options =>
+{
+    options.SwaggerEndpoint("/swagger/v1/swagger.json", "Watcher-Server API v1");
+    options.RoutePrefix = "api/v1/swagger";
+});
+
+// 🔹 Authentifizierung & Autorisierung
 app.UseAuthentication();
 app.UseAuthorization();
 
-app.UseStaticFiles();
-
+// 🔹 MVC-Routing
 app.MapControllerRoute(
     name: "default",
     pattern: "{controller=Home}/{action=Index}/{id?}"

Watcher/Services/ISystemStore.cs

@@ -0,0 +1,9 @@
+namespace Watcher.Services;
+
+public interface ISystemStore
+{
+    Boolean NewVersionAvailable { get; set; }
+
+    Double DatabaseSize { get; set; }
+
+}

Watcher/Services/SystemMangement.cs

@@ -0,0 +1,42 @@
+using System.Net.Http;
+
+namespace Watcher.Services;
+
+public class SystemManagement : BackgroundService
+{
+    private readonly ILogger<NetworkCheck> _logger;
+
+    private ISystemStore _SystemStore;
+
+    public SystemManagement(ILogger<NetworkCheck> logger, ISystemStore SystemStore)
+    {
+        _logger = logger;
+        _SystemStore = SystemStore;
+
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        // Todo: Umstellen auf einmal alle 24h
+        var timer = new PeriodicTimer(TimeSpan.FromSeconds(30));
+
+        while (await timer.WaitForNextTickAsync(stoppingToken))
+        {
+            // Hintergrundprozess abwarten
+            await checkForNewDockerImageVersion();
+
+            // 5 Sekdunden Offset
+            await Task.Delay(TimeSpan.FromSeconds(5), stoppingToken);
+        }
+    }
+
+    public Task checkForNewDockerImageVersion()
+    {
+        return Task.CompletedTask;
+    }
+
+    public Task createDailySqliteBackup()
+    {
+        return Task.CompletedTask;
+    }
+}

Watcher/Services/SystemStore.cs

@@ -0,0 +1,9 @@
+namespace Watcher.Services;
+
+public class SystemStore: ISystemStore
+{
+    public Boolean NewVersionAvailable { get; set; }
+
+    public Double DatabaseSize { get; set; }
+
+}

Watcher/Watcher.csproj

@@ -23,6 +23,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="8.0.6" />
     <PackageReference Include="Serilog.AspNetCore" Version="9.0.0" />
     <PackageReference Include="Serilog.Sinks.File" Version="7.0.0" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="9.0.6" />
   </ItemGroup>
 
 </Project>