Implemented new mail system components

Moonlight/App/Services/Mail/MailService.cs

@@ -2,6 +2,7 @@
 using Moonlight.App.Database.Entities;
 using Moonlight.App.Exceptions;
 using Moonlight.App.Helpers;
+using Moonlight.App.Repositories;
 using SmtpClient = MailKit.Net.Smtp.SmtpClient;
 
 namespace Moonlight.App.Services.Mail;
@@ -14,8 +15,14 @@ public class MailService
     private readonly int Port;
     private readonly bool Ssl;
 
-    public MailService(ConfigService configService)
+    private readonly Repository<User> UserRepository;
+
+    public MailService(
+        ConfigService configService,
+        Repository<User> userRepository)
     {
+        UserRepository = userRepository;
+        
         var mailConfig = configService
             .Get()
             .Moonlight.Mail;
@@ -27,28 +34,8 @@ public class MailService
         Ssl = mailConfig.Ssl;
     }
 
-    public async Task SendMail(
+    public Task SendMailRaw(User user, string html)
-        User user,
-        string name,
-        Action<Dictionary<string, string>> values
-    )
     {
-        if (!File.Exists(PathBuilder.File("storage", "resources", "mail", $"{name}.html")))
-        {
-            Logger.Warn($"Mail template '{name}' not found. Make sure to place one in the resources folder");
-            throw new DisplayException("Mail template not found");
-        }
-
-        var rawHtml = await File.ReadAllTextAsync(PathBuilder.File("storage", "resources", "mail", $"{name}.html"));
-
-        var val = new Dictionary<string, string>();
-        values.Invoke(val);
-        
-        val.Add("FirstName", user.FirstName);
-        val.Add("LastName", user.LastName);
-
-        var parsed = ParseMail(rawHtml, val);
-
         Task.Run(async () =>
         {
             try
@@ -62,24 +49,70 @@ public class MailService
                 
                 var body = new BodyBuilder
                 {
-                    HtmlBody = parsed
+                    HtmlBody = html
                 };
                 mailMessage.Body = body.ToMessageBody();
 
-                using (var smtpClient = new SmtpClient())
+                using var smtpClient = new SmtpClient();
-                {
                 await smtpClient.ConnectAsync(Server, Port, Ssl);
                 await smtpClient.AuthenticateAsync(Email, Password);
                 await smtpClient.SendAsync(mailMessage);
                 await smtpClient.DisconnectAsync(true);
             }
-            }
             catch (Exception e)
             {
                 Logger.Warn("Error sending mail");
                 Logger.Warn(e);
             }
         });
+        
+        return Task.CompletedTask;
+    }
+    
+    public async Task SendMail(User user, string template, Action<Dictionary<string, string>> values)
+    {
+        if (!File.Exists(PathBuilder.File("storage", "resources", "mail", $"{template}.html")))
+        {
+            Logger.Warn($"Mail template '{template}' not found. Make sure to place one in the resources folder");
+            throw new DisplayException("Mail template not found");
+        }
+
+        var rawHtml = await File.ReadAllTextAsync(PathBuilder.File("storage", "resources", "mail", $"{template}.html"));
+
+        var val = new Dictionary<string, string>();
+        values.Invoke(val);
+        
+        val.Add("FirstName", user.FirstName);
+        val.Add("LastName", user.LastName);
+
+        var parsed = ParseMail(rawHtml, val);
+
+        await SendMailRaw(user, parsed);
+    }
+
+    public async Task SendEmailToAll(string template, Action<Dictionary<string, string>> values)
+    {
+        var users = UserRepository
+            .Get()
+            .ToArray();
+
+        foreach (var user in users)
+        {
+            await SendMail(user, template, values);
+        }
+    }
+
+    public async Task SendEmailToAllAdmins(string template, Action<Dictionary<string, string>> values)
+    {
+        var users = UserRepository
+            .Get()
+            .Where(x => x.Admin)
+            .ToArray();
+
+        foreach (var user in users)
+        {
+            await SendMail(user, template, values);
+        }
     }
 
     private string ParseMail(string html, Dictionary<string, string> values)

Moonlight/Shared/Views/Admin/Sys/Mail.razor

@@ -5,17 +5,35 @@
 @using Moonlight.App.Helpers.Files
 @using Moonlight.App.Helpers
 @using BlazorTable
+@using Moonlight.App.Database.Entities
 @using Moonlight.App.Models.Misc
 @using Moonlight.App.Services
 @using Moonlight.App.Services.Interop
+@using Moonlight.App.Services.Mail
 
 @inject SmartTranslateService SmartTranslateService
 @inject ToastService ToastService
 @inject AlertService AlertService
+@inject MailService MailService
 
 <OnlyAdmin>
     <AdminSystemNavigation Index="9"/>
 
+    <div class="card mb-3">
+        <div class="card-header">
+            <span class="card-title">
+                <TL>Actions</TL>
+            </span>
+        </div>
+        <div class="card-body">
+            <WButton Text="@(SmartTranslateService.Translate("Test mail configuration"))"
+                     WorkingText="@(SmartTranslateService.Translate("Sending test mail"))"
+                     CssClasses="btn-primary"
+                     OnClick="SendTestMail">
+            </WButton>
+        </div>
+    </div>
+
     <LazyLoader @ref="LazyLoader" Load="Load">
         @if (CurrentMailTemplate == null)
         {
@@ -74,12 +92,17 @@
 
 @code
 {
+    [CascadingParameter]
+    public User User { get; set; }
+
     private MailTemplate[] MailTemplateFiles;
     private FileAccess FileAccess;
     private LazyLoader LazyLoader;
 
+    #region Template Editor
+
     private MailTemplate? CurrentMailTemplate;
-    private string CurrentMailTemplateContent;
+    private string CurrentMailTemplateContent = "";
 
     private async Task Load(LazyLoader arg)
     {
@@ -136,7 +159,7 @@
             ""
             );
 
-        if(string.IsNullOrEmpty(name))
+        if (string.IsNullOrEmpty(name))
             return;
 
         await FileAccess.Write(new()
@@ -146,4 +169,12 @@
 
         await LazyLoader.Reload();
     }
+
+    #endregion
+
+    private async Task SendTestMail()
+    {
+        await MailService.SendMailRaw(User, "<html><body>If you see this mail, your moonlight mail configuration is ready to use</body></html>");
+        await AlertService.Info(SmartTranslateService.Translate("A test mail has been sent to the email address of your account"));
+    }
 }