From aa50827cd1d098dc25ec5990bf51ed0b7906913f Mon Sep 17 00:00:00 2001
From: Muh Yusuf <yusufmuhyusuh@gmail.com>
Date: Sat, 6 Sep 2025 07:13:10 +0700
Subject: [PATCH] feat: menambahkan studi kasus advanced

---
 CMakeLists.txt                    |   6 +-
 case_study/advanced/undo_redo.cpp | 108 ++++++++++++++++++++++++++++++
 case_study/use_array.cpp          |  24 ++++---
 readme.md                         |   0
 4 files changed, 125 insertions(+), 13 deletions(-)
 create mode 100644 case_study/advanced/undo_redo.cpp
 create mode 100644 readme.md

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 58b88d3..659139f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,11 +33,11 @@ FetchContent_Declare(
 set(INSTALL_GTEST OFF CACHE BOOL "Disable install" FORCE)
 FetchContent_MakeAvailable(googletest)
 
-enable_testing()
+# enable_testing()
 
 # test/stack_test.cpp harus ada
-add_executable(stack_test ${TEST_DIR}/stack_test.cpp)
-target_link_libraries(stack_test PRIVATE stack_lib GTest::gtest_main)
+#add_executable(stack_test ${TEST_DIR}/stack_test.cpp)
+#target_link_libraries(stack_test PRIVATE stack_lib GTest::gtest_main)
 
 include(GoogleTest)
 gtest_discover_tests(stack_test)
diff --git a/case_study/advanced/undo_redo.cpp b/case_study/advanced/undo_redo.cpp
new file mode 100644
index 0000000..fc5e502
--- /dev/null
+++ b/case_study/advanced/undo_redo.cpp
@@ -0,0 +1,108 @@
+#include <iostream>
+#include <stdexcept>
+class Stack{
+    private:
+        enum Mode{write = 1,read = 2,undo = 3,redo = 4,unknown = 5};
+    private:
+        int size;
+        int temp_size;
+        int capacity;
+        std::string* arr;
+        std::string* temp;
+    public:
+        Stack(){
+            this->temp_size = 0;
+            this->size = 0;
+            this->capacity = 1;
+            this->arr = new std::string[capacity];
+            this->temp = new std::string[capacity];
+        }
+        Stack(int capacity){
+            this->temp_size = 0;
+            this->size = 0;
+            this->capacity = capacity;
+            this->arr = new std::string[capacity];
+            this->temp = new std::string[capacity];
+        }
+        ~Stack(){
+            delete[] arr;
+        }
+    public:
+        Mode classifyInput(const std::string& text){
+            if(text.find("read") != std::string::npos){
+                return read;
+            }else if(text.find("write") != std::string::npos){
+                return write;
+            }else if(text.find("undo") != std::string::npos){
+                return undo;
+            }else if(text.find("redo") != std::string::npos){
+                return redo;
+            }
+            return unknown;
+        }  
+    public:
+        bool is_full()const noexcept{
+            if(size == capacity){
+                return true;
+            }
+            return false;
+        }
+        std::string get_operation(const std::string& text){
+            std::string ans = "";
+            Mode m = classifyInput(text);
+            if(m == read){
+                return "read";
+            }else if(m == write){
+                return "write";
+            }else if(m == undo){
+                return "undo";
+            }else if(m == redo){
+                return "redo";
+            }
+            return "";
+        }
+        bool is_empty()const noexcept{
+            if(size == 0){
+                return true;
+            }
+            return false;
+        }
+        std::string top(){
+            return arr[size];
+        }
+    private:
+        void Write(const std::string& text){
+            if(is_full()){
+                throw std::runtime_error("Stack telah penuh");
+            }
+            Mode m = classifyInput(top());
+            if(m == read){
+                arr[size] = text;
+                size++;
+            }else{
+                std::string operasi = get_operation(text);
+                if(!operasi.empty()){
+                    std::cout << "Tidak dapat melakukan operasi" << operasi << std::endl;
+                }else{
+                    std::cout << "Keyword tidak ditemukan" << std::endl;
+                }
+            }
+        }
+        void pop(){
+            Mode m = classifyInput(top());
+            if(m == undo){
+                temp[temp_size] = top();
+                temp_size++;
+                arr[size - 1] = "";
+                size--;
+            }
+        }
+    public:
+        void menu(){
+            
+        }
+};
+int main(){     
+    std::cin.get();
+    return 0;
+}
\ No newline at end of file
diff --git a/case_study/use_array.cpp b/case_study/use_array.cpp
index 2499c35..a715e19 100644
--- a/case_study/use_array.cpp
+++ b/case_study/use_array.cpp
@@ -23,6 +23,10 @@ class Stack{
             this->s = s;
             this->arr = new char[capacity];
         }
+        //destructor
+        ~Stack(){
+            delete[] arr;
+        }
     private: //method valid parantheses
         bool is_open(char bracket){
             if(bracket == '{'){
@@ -144,17 +148,17 @@ class Stack{
             return {true,'\0','\0',-1};
         }
 
-    void result(){
-        validation_result res = valid_parantheses();
-        std::cout << res.is_valid << std::endl;
-        if(res.is_valid){
-            std::cout << "Bracket Is Valid " << std::endl;
-        }else{
-            std::cout << "input: " << s << std::endl;
-            std::cout << "Error: expected '" << res.expected << "' but found '" << res.found << "', at index " << res.index_error << std::endl; 
-        }
+        void result(){
+            validation_result res = valid_parantheses();
+            std::cout << res.is_valid << std::endl;
+            if(res.is_valid){
+                std::cout << "Bracket Is Valid " << std::endl;
+            }else{
+                std::cout << "input: " << s << std::endl;
+                std::cout << "Error: expected '" << res.expected << "' but found '" << res.found << "', at index " << res.index_error << std::endl; 
+            }
 
-    }        
+        }        
 };  
 int main(){
     Stack* stack1 = new Stack(100,"([)]");
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..e69de29