From a665f5d894539cae5f4188e4a72ea9634b8c4ed0 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 27 Apr 2021 19:29:20 +0800
Subject: refactor: ...

---
 BackEnd/Timeline/Services/User/IUserDeleteService.cs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 BackEnd/Timeline/Services/User/IUserDeleteService.cs

(limited to 'BackEnd/Timeline/Services/User/IUserDeleteService.cs')

diff --git a/BackEnd/Timeline/Services/User/IUserDeleteService.cs b/BackEnd/Timeline/Services/User/IUserDeleteService.cs
new file mode 100644
index 00000000..ce9448ac
--- /dev/null
+++ b/BackEnd/Timeline/Services/User/IUserDeleteService.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Timeline.Services.User
+{
+    public interface IUserDeleteService
+    {
+        /// <summary>
+        /// Delete a user of given username.
+        /// </summary>
+        /// <param name="username">Username of the user to delete. Can't be null.</param>
+        /// <returns>True if user is deleted, false if user not exist.</returns>
+        /// <exception cref="ArgumentNullException">Thrown if <paramref name="username"/> is null.</exception>
+        /// <exception cref="ArgumentException">Thrown when <paramref name="username"/> is of bad format.</exception>
+        /// <exception cref="InvalidOperationOnRootUserException">Thrown when deleting root user.</exception>
+        Task<bool> DeleteUser(string username);
+    }
+}
-- 
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