Added database loading logic

src/HopFrame.Core/Services/Implementations/ContextExplorer.cs

@@ -1,8 +1,9 @@
 using HopFrame.Core.Config;
+using Microsoft.EntityFrameworkCore;
 
 namespace HopFrame.Core.Services.Implementations;
 
-internal sealed class ContextExplorer(HopFrameConfig config) : IContextExplorer {
+internal sealed class ContextExplorer(HopFrameConfig config, IServiceProvider provider) : IContextExplorer {
     public IEnumerable<string> GetTableNames() {
         foreach (var context in config.Contexts) {
             foreach (var table in context.Tables) {
@@ -12,13 +13,28 @@ internal sealed class ContextExplorer(HopFrameConfig config) : IContextExplorer
         }
     }
     
-    public TableConfig? GetTable(string name) {
+    public TableConfig? GetTable(string tableName) {
         foreach (var context in config.Contexts) {
-            var table = context.Tables.FirstOrDefault(table => table.PropertyName == name);
+            var table = context.Tables.FirstOrDefault(table => table.PropertyName == tableName);
             if (table is not null)
                 return table;
         }
 
         return null;
     }
+
+    public ITableManager? GetTableManager(string tableName) {
+        foreach (var context in config.Contexts) {
+            var table = context.Tables.FirstOrDefault(table => table.PropertyName == tableName);
+            if (table is null) continue;
+            
+            var dbContext = provider.GetService(context.ContextType) as DbContext;
+            if (dbContext is null) return null;
+
+            var type = typeof(TableManager<>).MakeGenericType(table.TableType);
+            return Activator.CreateInstance(type, dbContext) as ITableManager;
+        }
+
+        return null;
+    }
 }