Initial split of the modules

NadekoBot.Core/Services/Database/Models/Waifu.cs

@@ -0,0 +1,46 @@
+using NadekoBot.Extensions;
+using System.Collections.Generic;
+
+namespace NadekoBot.Services.Database.Models
+{
+    public class WaifuInfo : DbEntity
+    {
+        public int WaifuId { get; set; }
+        public DiscordUser Waifu { get; set; }
+
+        public int? ClaimerId { get; set; }
+        public DiscordUser Claimer { get; set; }
+
+        public int? AffinityId { get; set; }
+        public DiscordUser Affinity { get; set; }
+
+        public int Price { get; set; }
+        public List<WaifuItem> Items { get; set; } = new List<WaifuItem>();
+
+        public override string ToString()
+        {
+            var claimer = "no one";
+            var status = "";
+
+            var waifuUsername = Waifu.Username.TrimTo(20);
+            var claimerUsername = Claimer?.Username.TrimTo(20);
+
+            if (Claimer != null)
+            {
+                claimer = $"{ claimerUsername }#{Claimer.Discriminator}";
+            }
+            if (AffinityId == null)
+            {
+                status = $"... but {waifuUsername}'s heart is empty";
+            }
+            else if (AffinityId == ClaimerId)
+            {
+                status = $"... and {waifuUsername} likes {claimerUsername} too <3";
+            }
+            else {
+                status = $"... but {waifuUsername}'s heart belongs to {Affinity.Username.TrimTo(20)}#{Affinity.Discriminator}";
+            }
+            return $"**{waifuUsername}#{Waifu.Discriminator}** - claimed by **{claimer}**\n\t{status}";
+        }
+    }
+}