Separation of core library from the UWP app.

Wino.Services/SignatureService.cs

@@ -0,0 +1,58 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Wino.Core.Domain.Entities.Mail;
+using Wino.Core.Domain.Interfaces;
+
+namespace Wino.Services
+{
+    public class SignatureService(IDatabaseService databaseService) : BaseDatabaseService(databaseService), ISignatureService
+    {
+        public async Task<AccountSignature> GetSignatureAsync(Guid signatureId)
+        {
+            return await Connection.Table<AccountSignature>().FirstAsync(s => s.Id == signatureId);
+        }
+
+        public async Task<List<AccountSignature>> GetSignaturesAsync(Guid accountId)
+        {
+            return await Connection.Table<AccountSignature>().Where(s => s.MailAccountId == accountId).ToListAsync();
+        }
+
+        public async Task<AccountSignature> CreateSignatureAsync(AccountSignature signature)
+        {
+            await Connection.InsertAsync(signature);
+
+            return signature;
+        }
+
+        public async Task<AccountSignature> CreateDefaultSignatureAsync(Guid accountId)
+        {
+            var defaultSignature = new AccountSignature()
+            {
+                Id = Guid.NewGuid(),
+                MailAccountId = accountId,
+                // TODO: Should be translated?
+                Name = "Wino Default Signature",
+                HtmlBody = @"<p>Sent from <a href=""https://github.com/bkaankose/Wino-Mail/"">Wino Mail</a> for Windows</p>"
+            };
+
+            await Connection.InsertAsync(defaultSignature);
+
+            return defaultSignature;
+        }
+
+        public async Task<AccountSignature> UpdateSignatureAsync(AccountSignature signature)
+        {
+            await Connection.UpdateAsync(signature);
+
+            return signature;
+        }
+
+        public async Task<AccountSignature> DeleteSignatureAsync(AccountSignature signature)
+        {
+            await Connection.DeleteAsync(signature);
+
+            return signature;
+        }
+    }
+}