Refactored AgeGroup namespace and services, added RegistrationKey functionality.

API/Repository/RegistrationKeyRepo/RegistrationKeyService.cs

@@ -0,0 +1,76 @@
+using API.Database;
+using API.Models.Internal.User;
+using Microsoft.EntityFrameworkCore;
+
+namespace API.Repository.RegistrationKeyRepo;
+
+public class RegistrationKeyService : IRegistrationKeyService
+{
+    private ApplicationDbContext _context;
+
+    public RegistrationKeyService(ApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    public async Task<List<RegistrationKey>> GetAllAsync()
+    {
+        var allKeys = await _context.RegistrationKeys.ToListAsync();
+
+        return allKeys;
+    }
+
+    public async Task<RegistrationKey?> GetAsync(string id)
+    {
+        return await _context.RegistrationKeys.FindAsync(id);
+    }
+
+    public async Task<RegistrationKey> CreateAsync(RegistrationKeyIngoing key)
+    {
+        var internalKey = key.ToInternalFromIngoing();
+
+        await _context.RegistrationKeys.AddAsync(internalKey);
+        await _context.SaveChangesAsync();
+
+        return internalKey;
+    }
+
+    public async Task<RegistrationKey?> DeleteAsync(string id)
+    {
+        var key = await _context.RegistrationKeys.FirstOrDefaultAsync(x => x.Id == id);
+
+        if (key == null)
+        {
+            return null;
+        }
+
+        _context.RegistrationKeys.Remove(key);
+        await _context.SaveChangesAsync();
+
+        return key;
+    }
+
+    public async Task<int> DeleteOldRegistrationKeysAsync(int x)
+    {
+        if (x <= 0)
+        {
+            return 0;
+        }
+
+        var cutoff = DateTime.UtcNow.AddDays(-x);
+
+        var oldKeys = await _context.RegistrationKeys
+            .Where(k => k.Created < cutoff)
+            .ToListAsync();
+
+        if (oldKeys.Count == 0)
+        {
+            return 0;
+        }
+
+        _context.RegistrationKeys.RemoveRange(oldKeys);
+        await _context.SaveChangesAsync();
+
+        return oldKeys.Count;
+    }
+}