refactor: reduce class complexity, improve code quality (#233)

* build: require phpcs/phpmd

* maintenance: refactor to reduce complexity of main class
closes #16

* build: php8.1 compatability

* ci: phpcs and phpmd

* ci: codacy

* ci: codacy ignore girhub

Author: g105b

.codacy.yml

@@ -0,0 +1,6 @@
+analysis:
+  exclude_paths:
+    - ".github/**"
+    - "example/**"
+    - "test/**"
+

.github/workflows/ci.yml

@@ -117,6 +117,53 @@ jobs:
           level: 6
           memory_limit: 256M
 
+  phpmd:
+    runs-on: ubuntu-latest
+    needs: [ composer ]
+    strategy:
+      matrix:
+        php: [ 8.2, 8.3, 8.4, 8.5 ]
+
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: build-artifact-${{ matrix.php }}
+          path: /tmp/github-actions
+
+      - name: Extract build archive
+        run: tar -xvf /tmp/github-actions/build.tar ./
+
+      - name: PHP Mess Detector
+        uses: php-actions/phpmd@v1
+        with:
+          php_version: ${{ matrix.php }}
+          path: src/
+          output: text
+          ruleset: phpmd.xml
+
+  phpcs:
+    runs-on: ubuntu-latest
+    needs: [ composer ]
+    strategy:
+      matrix:
+        php: [ 8.2, 8.3, 8.4, 8.5 ]
+
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: build-artifact-${{ matrix.php }}
+          path: /tmp/github-actions
+
+      - name: Extract build archive
+        run: tar -xvf /tmp/github-actions/build.tar ./
+
+      - name: PHP Code Sniffer
+        uses: php-actions/phpcs@v1
+        with:
+          php_version: ${{ matrix.php }}
+          path: src/
+          standard: phpcs.xml
+
   remove_old_artifacts:
     runs-on: ubuntu-latest
 

composer.json

@@ -11,7 +11,9 @@
 		"ext-dom": "*",
 		"ext-libxml": "*",
 		"phpstan/phpstan": "^2.1",
-		"phpunit/phpunit": "^9.6"
+		"phpunit/phpunit": "^10.5",
+		"squizlabs/php_codesniffer": "^4.0",
+		"phpmd/phpmd": "^2.15"
 	},
 
 	"license": "MIT",
@@ -28,7 +30,8 @@
 	},
 
 	"scripts": {
-		"phpunit": "vendor/bin/phpunit --configuration test/phpunit/phpunit.xml",
+		"phpunit": "XDEBUG_MODE=coverage vendor/bin/phpunit --configuration phpunit.xml",
+		"phpunit:coverage": "XDEBUG_MODE=coverage vendor/bin/phpunit --configuration phpunit.xml --coverage-text",
 		"phpstan": "vendor/bin/phpstan analyse --level 6 src",
 		"test": [
 			"@phpunit",