[#1] Local environment integration

.env

@@ -0,0 +1,4 @@
+UID=503
+GID=20
+PHP_IDE_CONFIG=serverName=Docker
+XDEBUG_SESSION=PHPSTORM

.github/workflows/cart-sample.yml

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+name: Cart sample PHP CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  phpstan:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php: [ 8.3 ]
+
+    services:
+      docker:
+        image: docker:20.10
+        options: --privileged
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: mbstring, xml
+
+      - name: Install dependencies
+        run: composer install
+
+      - name: Run PHPStan
+        run: vendor/bin/phpstan analyse -l max
+
+  unit-tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php: [ 8.3 ]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: mbstring, xml
+
+      - name: Install dependencies
+        run: composer install
+
+      - name: Run Unit Tests
+        run: vendor/bin/phpunit --configuration phpunit.xml --testsuite unit
+
+  integration-tests:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php: [ 8.3 ]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: mbstring, xml
+
+      - name: Install dependencies
+        run: composer install
+
+      - name: Run Integration Tests
+        run: vendor/bin/phpunit --configuration phpunit.xml --testsuite integration
+

.gitignore

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+.phpunit.cache
+vendor
+.idea

README.md

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-# cart-sample
+# Sample cart project
+
+## requirements
+
+- docker
+- docker-compose
+
+## instalation
+
+1. `docker-compose up -d`
+2. inside container `composer install`
+
+## run tests:
+
+- unit / integration:
+    - inside container: `composer test`
+- static tests (phpstan)
+    - inside container: `composer analyse`
+
+## assumptions:
+
+- json file is used as products database
+-

composer.json

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+{
+  "name": "sample/cart",
+  "description": "Challenge project",
+  "type": "project",
+  "require": {
+    "php": "^8.3"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "^11.0",
+    "phpstan/phpstan": "^1.0"
+  },
+  "autoload": {
+    "psr-4": {
+      "App\\": "src/"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "App\\Tests\\": "tests/"
+    }
+  },
+  "scripts": {
+    "test": "phpunit --configuration phpunit.xml",
+    "analyse": "phpstan analyse"
+  },
+  "minimum-stability": "stable",
+  "prefer-stable": true
+}