Initial commit.

Wino.Core/Services/SignatureService.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Threading.Tasks;
+using Wino.Core.Domain.Entities;
+using Wino.Core.Domain.Interfaces;
+
+namespace Wino.Core.Services
+{
+    public class SignatureService : BaseDatabaseService, ISignatureService
+    {
+        public SignatureService(IDatabaseService databaseService) : base(databaseService) { }
+
+        public async Task<AccountSignature> CreateDefaultSignatureAsync(Guid accountId)
+        {
+            var account = await Connection.Table<MailAccount>().FirstOrDefaultAsync(a => a.Id == accountId);
+
+            var defaultSignature = GetDefaultSignature();
+
+            await Connection.InsertAsync(defaultSignature);
+
+            account.SignatureId = defaultSignature.Id;
+
+            await Connection.UpdateAsync(account);
+
+            return defaultSignature;
+        }
+
+        public async Task DeleteAccountSignatureAssignment(Guid accountId)
+        {
+            var existingSignature = await GetAccountSignatureAsync(accountId);
+
+            if (existingSignature != null)
+            {
+                await Connection.DeleteAsync(existingSignature);
+
+                var account = await Connection.Table<MailAccount>().FirstOrDefaultAsync(a => a.Id == accountId);
+
+                account.SignatureId = null;
+
+                await Connection.UpdateAsync(account);
+            }
+        }
+
+        public async Task<AccountSignature> GetAccountSignatureAsync(Guid accountId)
+        {
+            var account = await Connection.Table<MailAccount>().FirstOrDefaultAsync(a => a.Id == accountId);
+
+            if (account?.SignatureId == null)
+                return null;
+
+            return await Connection.Table<AccountSignature>().FirstOrDefaultAsync(a => a.Id == account.SignatureId);
+        }
+
+        public async Task<AccountSignature> UpdateAccountSignatureAsync(Guid accountId, string htmlBody)
+        {
+            var signature = await GetAccountSignatureAsync(accountId);
+            var account = await Connection.Table<MailAccount>().FirstOrDefaultAsync(a => a.Id == accountId);
+
+            if (signature == null)
+            {
+                signature = new AccountSignature()
+                {
+                    Id = Guid.NewGuid(),
+                    HtmlBody = htmlBody
+                };
+
+                await Connection.InsertAsync(signature);
+            }
+            else
+            {
+                signature.HtmlBody = htmlBody;
+
+                await Connection.UpdateAsync(signature);
+            }
+
+            account.SignatureId = signature.Id;
+
+            await Connection.UpdateAsync(account);
+
+            return signature;
+        }
+
+        private AccountSignature GetDefaultSignature()
+        {
+            return new AccountSignature()
+            {
+                Id = Guid.NewGuid(),
+                HtmlBody = @"<p>Sent from <a href=""https://github.com/bkaankose/Wino-Mail/"">Wino Mail</a> for Windows</p>"
+            };
+        }
+    }
+}