feat(Core): add AppConfig database table and logic

Core/Controllers/McoController.cs

@@ -1,4 +1,5 @@
 using Core.Enums;
+using Core.Models;
 using Core.Responses;
 using Microsoft.AspNetCore.Mvc;
 
@@ -29,7 +30,7 @@ public class McoController : Controller
     [HttpGet("v1/news")]
     public ActionResult GetNews()
     {
-        var newsResponse = new News { NewsLink = "https://github.com/CyberL1/Minecraft-Realms-Emulator" };
+        var newsResponse = new News { NewsLink = AppConfig.NewsLink };
         return Ok(newsResponse);
     }
 }

Core/Controllers/TrialController.cs

@@ -1,3 +1,4 @@
+using Core.Models;
 using Microsoft.AspNetCore.Mvc;
 
 namespace Core.Controllers;
@@ -9,6 +10,6 @@ public class TrialController : Controller
     [HttpGet]
     public ActionResult GetTrial()
     {
-        return Ok(true);
+        return Ok(AppConfig.Trial);
     }
 }

Core/Core.csproj

@@ -8,6 +8,11 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.EntityFrameworkCore" Version="10.0.9"/>
+        <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.9">
+            <PrivateAssets>all</PrivateAssets>
+            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+        <PackageReference Include="Newtonsoft.Json" Version="13.0.4" />
         <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.2"/>
     </ItemGroup>
 

Core/Data/DataContext.cs

@@ -0,0 +1,9 @@
+using Core.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace Core.Data;
+
+public class DataContext(DbContextOptions<DataContext> options) : DbContext(options)
+{
+    public DbSet<AppConfig> AppConfig { get; set; }
+}

Core/Entities/AppConfig.cs

@@ -0,0 +1,12 @@
+using System.ComponentModel.DataAnnotations.Schema;
+using Microsoft.EntityFrameworkCore;
+
+namespace Core.Entities;
+
+[PrimaryKey("Key")]
+public class AppConfig
+{
+    public required string Key { get; set; }
+
+    [Column(TypeName = "jsonb")] public required dynamic Value { get; set; }
+}

Core/Helpers/AppConfig.cs

@@ -0,0 +1,40 @@
+using Core.Data;
+using Microsoft.EntityFrameworkCore;
+using Newtonsoft.Json;
+
+namespace Core.Helpers;
+
+public class AppConfig
+{
+    private static readonly AppConfig AppConfigTyped = new();
+
+    public static void InitializeAppConfig(IServiceProvider serviceProvider)
+    {
+        using var scope = serviceProvider.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<DataContext>();
+
+        db.Database.Migrate();
+
+        var appConfigModel = new Models.AppConfig();
+        var properties = appConfigModel.GetType().GetProperties();
+
+        var defaultConfig = properties.Select(property => new Entities.AppConfig
+        {
+            Key = property.Name,
+            Value = JsonConvert.SerializeObject(property.GetValue(appConfigModel))
+        });
+
+        foreach (var config in defaultConfig)
+            db.Database.ExecuteSqlInterpolated(
+                $"""INSERT INTO "AppConfig" ("Key", "Value") VALUES ({config.Key}, {config.Value}::jsonb) ON CONFLICT ("Key") DO NOTHING""");
+
+        var dbConfigs = db.AppConfig.ToDictionary(p => p.Key, p => p.Value);
+
+        foreach (var property in properties)
+            if (dbConfigs.TryGetValue(property.Name, out var dbJsonValue) && dbJsonValue != null)
+            {
+                var deserializedValue = JsonConvert.DeserializeObject(dbJsonValue, property.PropertyType);
+                property.SetValue(AppConfigTyped, deserializedValue);
+            }
+    }
+}

Core/Migrations/20260613101031_AppConfig_Init.Designer.cs

@@ -0,0 +1,43 @@
+// <auto-generated />
+using Core.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Core.Migrations
+{
+    [DbContext(typeof(DataContext))]
+    [Migration("20260613101031_AppConfig_Init")]
+    partial class AppConfig_Init
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.9")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Core.Entities.AppConfig", b =>
+                {
+                    b.Property<string>("Key")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Value")
+                        .IsRequired()
+                        .HasColumnType("jsonb");
+
+                    b.HasKey("Key");
+
+                    b.ToTable("AppConfig");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Core/Migrations/20260613101031_AppConfig_Init.cs

@@ -0,0 +1,33 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Core.Migrations
+{
+    /// <inheritdoc />
+    public partial class AppConfig_Init : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "AppConfig",
+                columns: table => new
+                {
+                    Key = table.Column<string>(type: "text", nullable: false),
+                    Value = table.Column<string>(type: "jsonb", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AppConfig", x => x.Key);
+                });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "AppConfig");
+        }
+    }
+}

Core/Migrations/DataContextModelSnapshot.cs

@@ -0,0 +1,40 @@
+// <auto-generated />
+using Core.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Core.Migrations
+{
+    [DbContext(typeof(DataContext))]
+    partial class DataContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "10.0.9")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Core.Entities.AppConfig", b =>
+                {
+                    b.Property<string>("Key")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Value")
+                        .IsRequired()
+                        .HasColumnType("jsonb");
+
+                    b.HasKey("Key");
+
+                    b.ToTable("AppConfig");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Core/Models/AppConfig.cs

@@ -0,0 +1,7 @@
+namespace Core.Models;
+
+public class AppConfig
+{
+    public static string NewsLink { get; set; } = "https://github.com/CyberL1/Minecraft-Realms-Emulator";
+    public static bool Trial { get; set; } = true;
+}

Core/Program.cs

@@ -1,12 +1,26 @@
-using AuthorizationMiddleware = Core.Middlewares.AuthorizationMiddleware;
+using Core.Data;
+using Core.Helpers;
+using Core.Middlewares;
+using Microsoft.EntityFrameworkCore;
 
 var builder = WebApplication.CreateBuilder(args);
 
 builder.Services.AddControllers();
 
+var connectionString = builder.Configuration.GetValue<string>("Database");
+
+if (string.IsNullOrEmpty(connectionString))
+{
+    Console.WriteLine("No database specified. Ensure 'Database' field exists in appsettings.json file.");
+    return;
+}
+
+builder.Services.AddDbContextPool<DataContext>(options => options.UseNpgsql(connectionString));
+
 var app = builder.Build();
 
-// Configure the HTTP request pipeline.
+AppConfig.InitializeAppConfig(app.Services);
+
 if (!app.Environment.IsDevelopment())
 {
     app.UseHttpsRedirection();

Core/appsettings.Development.json

@@ -1,4 +1,5 @@
 {
+  "Database": "Host=localhost;Username=postgres;Password=postgres;Database=Minecraft-Realms-Emulator",
   "Logging": {
     "LogLevel": {
       "Default": "Information",