Update plugin to new Validator Interface

With the new plugin structure from Xulieta 1.0 we can write just the
Validator so we don't have to handle file parsers details.

Co-Authored-by: Jefersson Nathan <malukenho.dev@gmail.com>
Signed-off-by: Alexandre Eher <alexandre@eher.com.br>

.xulieta.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <xulieta xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="./vendor/codelicia/xulieta/xulieta.xsd">
-    <plugin>Codelicia\XulietaJson\Plugin</plugin>
-    <plugin>Codelicia\XulietaJson\Plugin</plugin>
+    <validator>Codelicia\XulietaJson\JsonValidator</validator>
+    <validator>Codelicia\XulietaJson\JsonValidator</validator>
 </xulieta>

composer.json

@@ -11,7 +11,8 @@
         "php": ">=7.4 || ~8.0"
     },
     "require-dev": {
-        "codelicia/xulieta": "^0.1.3",
-        "doctrine/coding-standard": "^8.2.0"
+        "codelicia/xulieta": "1.0.x-dev as 1.0.0",
+        "doctrine/coding-standard": "^8.2.0",
+        "phpunit/phpunit": "^9.4"
     }
 }

phpunit.xml.dist

@@ -0,0 +1,22 @@
+<?xml version="1.0"?>
+<phpunit
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="vendor/phpunit/phpunit/phpunit.xsd"
+        beStrictAboutResourceUsageDuringSmallTests="true"
+        beStrictAboutChangesToGlobalState="true"
+        beStrictAboutOutputDuringTests="true"
+        bootstrap="./vendor/autoload.php"
+        verbose="true"
+        colors="true"
+>
+    <testsuites>
+        <testsuite name="functional">
+            <directory suffix=".phpt">./tests/functional</directory>
+        </testsuite>
+    </testsuites>
+    <coverage>
+        <include>
+            <directory suffix=".php">src</directory>
+        </include>
+    </coverage>
+</phpunit>

src/JsonValidator.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Codelicia\XulietaJson;
+
+use Codelicia\Xulieta\Validator\Validator;
+use Codelicia\Xulieta\ValueObject\SampleCode;
+use Codelicia\Xulieta\ValueObject\Violation;
+use LogicException;
+use Throwable;
+
+use function json_decode;
+
+use const JSON_THROW_ON_ERROR;
+
+final class JsonValidator implements Validator
+{
+    public function supports(SampleCode $sampleCode): bool
+    {
+        return $sampleCode->language() === 'json';
+    }
+
+    public function hasViolation(SampleCode $sampleCode): bool
+    {
+        try {
+            json_decode($sampleCode->code(), true, 512, JSON_THROW_ON_ERROR);
+        } catch (Throwable $ex) {
+            return true;
+        }
+
+        return false;
+    }
+
+    public function getViolation(SampleCode $sampleCode): Violation
+    {
+        try {
+            json_decode($sampleCode->code(), true, 512, JSON_THROW_ON_ERROR);
+        } catch (Throwable $ex) {
+            return new Violation($sampleCode, $ex->getMessage(), 0);
+        }
+
+        throw new LogicException();
+    }
+}

tests/assets/valid-json.md

@@ -0,0 +1,10 @@
+# File containing json with good syntax
+
+This should be fine
+
+```json
+{
+  "good": "",
+  "so": "good"
+}
+```

tests/functional/init.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+require __DIR__ . '/../../vendor/autoload.php';
+
+return static function (string $params) : void {
+    $basePath = dirname(__DIR__, 2);
+
+    system("php $basePath/vendor/bin/xulieta check:erromeu $params");
+};

tests/functional/invalid-json.phpt

@@ -0,0 +1,22 @@
+--TEST--
+Report error when invalid json is detected
+--FILE--
+<?php
+
+$checkRunner = require __DIR__ . '/init.php';
+
+$checkRunner('tests/assets/invalid-json.md');
+
+--EXPECTF--
+Finding documentation files on tests/assets/invalid-json.md
+
+ --> tests/assets/invalid-json.md
+ 1 |   {
+ 2 |     "nosso": "",
+ 3 |     "erro": "
+ 4 |   }
+   | |
+     = note: Control character error, possibly incorrectly encoded
+
+
+     Operation failed!

tests/functional/valid-json.phpt

@@ -0,0 +1,14 @@
+--TEST--
+Report success with a valid json
+--FILE--
+<?php
+
+$checkRunner = require __DIR__ . '/init.php';
+
+$checkRunner('tests/assets/valid-json.md');
+
+--EXPECTF--
+Finding documentation files on tests/assets/valid-json.md
+
+
+     Everything is OK!