From c8c152ae68d0a9b569abc63dc385fc7376944cbe Mon Sep 17 00:00:00 2001
From: Sakurai <sakurai@kemq.net>
Date: Mon, 12 Aug 2024 12:30:07 +0900
Subject: [PATCH] =?UTF-8?q?#2=20=E3=81=AE=E5=AF=BE=E5=BF=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 IO/IStore.cs     |  4 ++++
 IO/LocalStore.cs | 10 ++++++++++
 JsonDB.cs        | 10 ++++++++++
 3 files changed, 24 insertions(+)

diff --git a/IO/IStore.cs b/IO/IStore.cs
index a39ca26..a726f53 100644
--- a/IO/IStore.cs
+++ b/IO/IStore.cs
@@ -6,5 +6,9 @@ public interface IStore<T> : IDisposable
 
     public bool Add(T item);
 
+    public bool Has(T item);
+
+    public bool Remove(T item);
+
     public IEnumerable<T> GetValues();
 }
diff --git a/IO/LocalStore.cs b/IO/LocalStore.cs
index 1f60230..f0fd036 100644
--- a/IO/LocalStore.cs
+++ b/IO/LocalStore.cs
@@ -53,6 +53,16 @@ public class LocalStore<T> : IStore<T>
         return true;
     }
 
+    public bool Has(T item)
+    {
+        return this.items.Contains(item);
+    }
+
+    public bool Remove(T item)
+    {
+        return this.items.Remove(item);
+    }
+
     public IEnumerable<T> GetValues()
     {
         return this.items.ToList();
diff --git a/JsonDB.cs b/JsonDB.cs
index b9eb24a..fd2d58c 100644
--- a/JsonDB.cs
+++ b/JsonDB.cs
@@ -26,6 +26,16 @@ public class JsonDB<T> : IDisposable
         return this.store.Add(item);
     }
 
+    public bool Has(T item)
+    {
+        return this.store.Has(item);
+    }
+
+    public bool Remove(T item)
+    {
+        return this.store.Remove(item);
+    }
+
     public IEnumerable<T> GetValues()
     {
         return this.store.GetValues();