From d3ed2d72bd9ba192703cec887989bca50f71d84b Mon Sep 17 00:00:00 2001
From: Aleksandra <sasha.musatkina008@gmail.com>
Date: Fri, 2 Jan 2026 14:29:25 +0200
Subject: [PATCH] add stateHistory

---
 .github/workflows/test.yml-template | 23 ++++++++++++++
 package-lock.json                   |  9 +++---
 package.json                        |  2 +-
 src/transformStateWithClones.js     | 49 +++++++++++++++++++++++++++--
 4 files changed, 76 insertions(+), 7 deletions(-)
 create mode 100644 .github/workflows/test.yml-template

diff --git a/.github/workflows/test.yml-template b/.github/workflows/test.yml-template
new file mode 100644
index 000000000..bb13dfc45
--- /dev/null
+++ b/.github/workflows/test.yml-template
@@ -0,0 +1,23 @@
+name: Test
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm test
diff --git a/package-lock.json b/package-lock.json
index 5f65a1947..b0acf79d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "license": "GPL-3.0",
       "devDependencies": {
         "@mate-academy/eslint-config": "latest",
-        "@mate-academy/scripts": "^1.8.6",
+        "@mate-academy/scripts": "^2.1.3",
         "eslint": "^8.57.0",
         "eslint-plugin-jest": "^28.6.0",
         "eslint-plugin-node": "^11.1.0",
@@ -1467,10 +1467,11 @@
       }
     },
     "node_modules/@mate-academy/scripts": {
-      "version": "1.8.6",
-      "resolved": "https://registry.npmjs.org/@mate-academy/scripts/-/scripts-1.8.6.tgz",
-      "integrity": "sha512-b4om/whj4G9emyi84ORE3FRZzCRwRIesr8tJHXa8EvJdOaAPDpzcJ8A0sFfMsWH9NUOVmOwkBtOXDu5eZZ00Ig==",
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/@mate-academy/scripts/-/scripts-2.1.3.tgz",
+      "integrity": "sha512-a07wHTj/1QUK2Aac5zHad+sGw4rIvcNl5lJmJpAD7OxeSbnCdyI6RXUHwXhjF5MaVo9YHrJ0xVahyERS2IIyBQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "@octokit/rest": "^17.11.2",
         "@types/get-port": "^4.2.0",
diff --git a/package.json b/package.json
index e8b974cfd..399a0cb0d 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^2.1.3",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",
     "eslint-plugin-node": "^11.1.0",
diff --git a/src/transformStateWithClones.js b/src/transformStateWithClones.js
index 96d4f7e7e..ba007e713 100644
--- a/src/transformStateWithClones.js
+++ b/src/transformStateWithClones.js
@@ -1,13 +1,58 @@
 'use strict';
 
 /**
- * @param {Object} state
+ * @param {Object} cloneState
  * @param {Object[]} actions
  *
  * @return {Object[]}
  */
 function transformStateWithClones(state, actions) {
-  // write code here
+  const stateHistory = [];
+  const cloneState = Object.assign({}, state);
+
+  for (const act of actions) {
+    if (act.type === 'addProperties') {
+      Object.assign(cloneState, act.extraData);
+      stateHistory.push({ ...cloneState });
+    }
+
+    if (act.type === 'removeProperties') {
+      for (const k of act.keysToRemove) {
+        delete cloneState[k];
+      }
+      stateHistory.push({ ...cloneState });
+    }
+
+    if (act.type === 'clear') {
+      for (const key in cloneState) {
+        delete cloneState[key];
+      }
+      stateHistory.push({ ...cloneState });
+    }
+  }
+
+  return stateHistory;
 }
 
 module.exports = transformStateWithClones;
+
+const data = [
+  {
+    state: {
+      foo: 'bar',
+      bar: 'foo',
+      name: 'Jim',
+      hello: 'world',
+    },
+    actions: [
+      {
+        type: 'removeProperties',
+        keysToRemove: ['test', 'bar'],
+      },
+    ],
+  },
+];
+
+for (const i of data) {
+  transformStateWithClones(i.state, i.actions);
+}