From e9ea621b93fbb58d9edfca8375918791637bbd52 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 30 Dec 2020 20:59:04 +0800
Subject: +init

---
 .../Impostor.Api/Events/Managers/IEventManager.cs  | 35 ++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 Impostor-dev/src/Impostor.Api/Events/Managers/IEventManager.cs

(limited to 'Impostor-dev/src/Impostor.Api/Events/Managers/IEventManager.cs')

diff --git a/Impostor-dev/src/Impostor.Api/Events/Managers/IEventManager.cs b/Impostor-dev/src/Impostor.Api/Events/Managers/IEventManager.cs
new file mode 100644
index 0000000..07a7f7c
--- /dev/null
+++ b/Impostor-dev/src/Impostor.Api/Events/Managers/IEventManager.cs
@@ -0,0 +1,35 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Impostor.Api.Events.Managers
+{
+    public interface IEventManager
+    {
+        /// <summary>
+        ///     Register a temporary event listener.
+        /// </summary>
+        /// <param name="listener">Event listener.</param>
+        /// <param name="invoker">Middleware between the events, which can be used to swap to the correct thread dispatcher.</param>
+        /// <returns>Disposable that unregisters the callback from the event manager.</returns>
+        /// <typeparam name="TListener">Type of the event listener.</typeparam>
+        IDisposable RegisterListener<TListener>(TListener listener, Func<Func<Task>, Task>? invoker = null)
+            where TListener : IEventListener;
+
+        /// <summary>
+        ///     Returns true if an event with the type <see cref="TEvent"/> is registered.
+        /// </summary>
+        /// <returns>True if the <see cref="TEvent"/> is registered.</returns>
+        /// <typeparam name="TEvent">Type of the event.</typeparam>
+        bool IsRegistered<TEvent>()
+            where TEvent : IEvent;
+
+        /// <summary>
+        ///     Call all the event listeners for the type <see cref="TEvent"/>.
+        /// </summary>
+        /// <param name="event">The event argument.</param>
+        /// <typeparam name="TEvent">Type of the event.</typeparam>
+        /// <returns>A <see cref="ValueTask"/> representing the asynchronous operation.</returns>
+        ValueTask CallAsync<TEvent>(TEvent @event)
+            where TEvent : IEvent;
+    }
+}
\ No newline at end of file
-- 
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