From ed402ee4dcb8df94c5c406e3504fa88366b6ee1d Mon Sep 17 00:00:00 2001
From: CherryJell <rodionklevlin61@gmail.com>
Date: Sat, 16 May 2026 12:10:51 +0400
Subject: [PATCH 1/5] fix: ICpmmand was added in namespace cmd.

---
 command/src/ICommand.cppm | 39 +++++++++++++++++++++------------------
 1 file changed, 21 insertions(+), 18 deletions(-)

diff --git a/command/src/ICommand.cppm b/command/src/ICommand.cppm
index bae0842..6b1223e 100644
--- a/command/src/ICommand.cppm
+++ b/command/src/ICommand.cppm
@@ -1,27 +1,30 @@
-module cmd:ICommand;
+export module cmd:ICommand;
 
 import std;
 
-template <typename ContextT>
-struct Context
+export namespace cmd
 {
-    std::vector<ContextT> data;
-};
+    template <typename ContextT>
+    struct Context
+    {
+        std::vector<ContextT> data;
+    };
 
-class ICommand
-{
-protected:
-    ICommand() = default;
+    class ICommand
+    {
+    protected:
+        ICommand() = default;
 
-public:
-    virtual ~ICommand() = default;
+    public:
+        virtual ~ICommand() = default;
 
-    ICommand(const ICommand &) = delete;
-    ICommand(ICommand &&) = delete;
-    ICommand &operator=(const ICommand &) = delete;
-    ICommand &operator=(ICommand &&) = delete;
+        ICommand(const ICommand &) = delete;
+        ICommand(ICommand &&) = delete;
+        ICommand &operator=(const ICommand &) = delete;
+        ICommand &operator=(ICommand &&) = delete;
 
-    virtual void Execute() = 0;
-    virtual void Undo() = 0;
-    [[nodiscard]] virtual std::string Description() const = 0;
+        virtual void Execute() = 0;
+        virtual void Undo() = 0;
+        [[nodiscard]] virtual std::string Description() const = 0;
+    };
 };
\ No newline at end of file

From e10fd98b7e8dbc99d363853b981046548e847dc2 Mon Sep 17 00:00:00 2001
From: CherryJell <rodionklevlin61@gmail.com>
Date: Sat, 16 May 2026 13:00:02 +0400
Subject: [PATCH 2/5] fix: ecport import ICommand

---
 command/src/cmd.cppm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/command/src/cmd.cppm b/command/src/cmd.cppm
index 79f0f0a..78bfa90 100644
--- a/command/src/cmd.cppm
+++ b/command/src/cmd.cppm
@@ -2,6 +2,7 @@ export module cmd;
 
 import :ICommand;
 
+export import :ICpmmand;
 export import :CommandClear;
 export import :CommandErase;
 export import :CommandHistory;

From 98f6c7ec08e16abfea4e2eaeb5bfdf8f9e986341 Mon Sep 17 00:00:00 2001
From: CherryJell <rodionklevlin61@gmail.com>
Date: Sat, 16 May 2026 13:03:50 +0400
Subject: [PATCH 3/5] fix: typo

---
 command/src/cmd.cppm | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/command/src/cmd.cppm b/command/src/cmd.cppm
index 78bfa90..6f1055f 100644
--- a/command/src/cmd.cppm
+++ b/command/src/cmd.cppm
@@ -1,8 +1,6 @@
 export module cmd;
 
-import :ICommand;
-
-export import :ICpmmand;
+export import :ICommand;
 export import :CommandClear;
 export import :CommandErase;
 export import :CommandHistory;

From f8bf52ddc3a8d3a2a3757370ae98a732042bc348 Mon Sep 17 00:00:00 2001
From: CherryJell <rodionklevlin61@gmail.com>
Date: Sat, 16 May 2026 13:32:20 +0400
Subject: [PATCH 4/5] fix: unable to insert empty vector, unable

---
 command/src/CommandInsert.cppm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/command/src/CommandInsert.cppm b/command/src/CommandInsert.cppm
index 629abdd..a770a72 100644
--- a/command/src/CommandInsert.cppm
+++ b/command/src/CommandInsert.cppm
@@ -17,7 +17,7 @@ export namespace cmd
 	public:
 		Insert(Context<ContextT> &ctx, std::size_t index, ContextT value) : _ctx(ctx), _index(index), _value(std::move(value))
 		{
-			if (index >= ctx.data.size())
+			if ((index >= ctx.data.size()) && (_index != 0))
 			{
 				throw std::out_of_range("cmd::Insert: index out of range");
 			}

From 21f3b96a6a8f14ce8e94cbb9a4d6014ca42c07a5 Mon Sep 17 00:00:00 2001
From: CherryJell <rodionklevlin61@gmail.com>
Date: Sat, 16 May 2026 13:44:36 +0400
Subject: [PATCH 5/5] feat: cmd simple usage

---
 README.md | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/README.md b/README.md
index 1fdea57..df335c6 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,41 @@ int main()
 }
 ```
 
+### `cmd::CommandHistory` example
+
+```cpp
+import std;
+import cmd;
+
+imt main()
+{
+    cmd::CommandHistory history;
+	cmd::Context<int> ctx;
+
+    try
+    {
+        history.Execute(std::make_unique<cmd::Insert<int>>(ctx, 0, 10));
+    }
+    catch(const std::out_of_range &e)
+    {
+        std::println("Error: {}", e.what());
+        return 0;
+    }
+
+	if (history.CanUndo())
+	{
+		history.Undo();
+	}
+
+	if (history.CanRedo())
+	{
+		history.Redo();
+	}
+
+    return 0;
+}
+```
+
 ## TODO
 
 ### Input