From 37679a34c70e03359df41eeea1aa9d3d34e2004d Mon Sep 17 00:00:00 2001
From: Sandro Keil <github@sandro-keil.de>
Date: Fri, 20 Nov 2020 14:38:16 +0100
Subject: [PATCH] Add factory for string uuid value object - Close #8

---
 src/ValueObject/UuidFactory.php       | 200 ++++++++++++++++++++++++++
 src/ValueObjectFactory.php            |   7 +
 tests/ValueObject/UuidFactoryTest.php | 116 +++++++++++++++
 3 files changed, 323 insertions(+)
 create mode 100644 src/ValueObject/UuidFactory.php
 create mode 100644 tests/ValueObject/UuidFactoryTest.php

diff --git a/src/ValueObject/UuidFactory.php b/src/ValueObject/UuidFactory.php
new file mode 100644
index 0000000..fa7b352
--- /dev/null
+++ b/src/ValueObject/UuidFactory.php
@@ -0,0 +1,200 @@
+<?php
+
+/**
+ * @see       https://github.com/open-code-modeling/json-schema-to-php-ast for the canonical source repository
+ * @copyright https://github.com/open-code-modeling/json-schema-to-php-ast/blob/master/COPYRIGHT.md
+ * @license   https://github.com/open-code-modeling/json-schema-to-php-ast/blob/master/LICENSE.md MIT License
+ */
+
+declare(strict_types=1);
+
+namespace OpenCodeModeling\JsonSchemaToPhpAst\ValueObject;
+
+use OpenCodeModeling\CodeAst\Builder\ClassBuilder;
+use OpenCodeModeling\CodeAst\Code\BodyGenerator;
+use OpenCodeModeling\CodeAst\Code\MethodGenerator;
+use OpenCodeModeling\CodeAst\Code\ParameterGenerator;
+use OpenCodeModeling\CodeAst\NodeVisitor\ClassMethod;
+use OpenCodeModeling\JsonSchemaToPhp\Type\StringType;
+use OpenCodeModeling\JsonSchemaToPhpAst\PropertyFactory;
+use PhpParser\NodeVisitor;
+use PhpParser\Parser;
+
+/**
+ * This file creates node visitors for a value object of type string.
+ *
+ * The following code will be generated:
+ *
+ * private UuidInterface $uuid;
+ *
+ * public static function fromString(string $uuid): self
+ * {
+ *     return new self(Uuid::fromString($uuid));
+ * }
+ *
+ * private function __construct(UuidInterface $uuid)
+ * {
+ *     $this->uuid = $uuid;
+ * }
+ *
+ * public function toString(): string
+ * {
+ *     return $this->uuid;
+ * }
+ *
+ * public function equals($other): bool
+ * {
+ *     if(!$other instanceof self) {
+ *         return false;
+ *     }
+ *
+ *     return $this->uuid === $other->uuid;
+ * }
+ *
+ * public function __toString(): string
+ * {
+ *     return $this->uuid;
+ * }
+ */
+final class UuidFactory
+{
+    private Parser $parser;
+    private PropertyFactory $propertyFactory;
+    private bool $typed;
+
+    public function __construct(Parser $parser, bool $typed)
+    {
+        $this->parser = $parser;
+        $this->typed = $typed;
+        $this->propertyFactory = new PropertyFactory($typed);
+    }
+
+    /**
+     * @param StringType $typeDefinition
+     * @return array<NodeVisitor>
+     */
+    public function nodeVisitors(StringType $typeDefinition): array
+    {
+        $name = $typeDefinition->name() ?: 'uuid';
+
+        return $this->nodeVisitorsFromNative($name);
+    }
+
+    public function classBuilder(StringType $typeDefinition): ClassBuilder
+    {
+        $name = $typeDefinition->name() ?: 'uuid';
+
+        return $this->classBuilderFromNative($name);
+    }
+
+    /**
+     * @param string $name
+     * @return array<NodeVisitor>
+     */
+    public function nodeVisitorsFromNative(string $name): array
+    {
+        $nodeVisitors = $this->propertyFactory->nodeVisitorFromNative($name, 'UuidInterface');
+        $nodeVisitors[] = new ClassMethod($this->methodFromString($name));
+        $nodeVisitors[] = new ClassMethod($this->methodMagicConstruct($name));
+        $nodeVisitors[] = new ClassMethod($this->methodToString($name));
+        $nodeVisitors[] = new ClassMethod($this->methodEquals($name));
+        $nodeVisitors[] = new ClassMethod($this->methodMagicToString($name));
+
+        return $nodeVisitors;
+    }
+
+    public function classBuilderFromNative(string $name): ClassBuilder
+    {
+        return ClassBuilder::fromNodes(
+            $this->propertyFactory->propertyGenerator($name, 'UuidInterface')->generate(),
+            $this->methodFromString($name)->generate(),
+            $this->methodMagicConstruct($name)->generate(),
+            $this->methodToString($name)->generate(),
+            $this->methodEquals($name)->generate(),
+            $this->methodMagicToString($name)->generate(),
+        )->setTyped($this->typed);
+    }
+
+    public function methodFromString(string $argumentName): MethodGenerator
+    {
+        $method = new MethodGenerator(
+            'fromString',
+            [
+                new ParameterGenerator($argumentName, 'string'),
+            ],
+            MethodGenerator::FLAG_STATIC | MethodGenerator::FLAG_PUBLIC,
+            new BodyGenerator($this->parser, 'return new self(Uuid::fromString($' . $argumentName . '));')
+        );
+        $method->setTyped($this->typed);
+        $method->setReturnType('self');
+
+        return $method;
+    }
+
+    public function methodMagicConstruct(string $argumentName): MethodGenerator
+    {
+        $method = new MethodGenerator(
+            '__construct',
+            [
+                new ParameterGenerator($argumentName, 'UuidInterface'),
+            ],
+            MethodGenerator::FLAG_PRIVATE,
+            new BodyGenerator($this->parser, \sprintf('$this->%s = $%s;', $argumentName, $argumentName))
+        );
+        $method->setTyped($this->typed);
+
+        return $method;
+    }
+
+    public function methodToString(string $argumentName): MethodGenerator
+    {
+        $method = new MethodGenerator(
+            'toString',
+            [],
+            MethodGenerator::FLAG_PUBLIC,
+            new BodyGenerator($this->parser, 'return $this->' . $argumentName . ';')
+        );
+        $method->setTyped($this->typed);
+        $method->setReturnType('string');
+
+        return $method;
+    }
+
+    public function methodEquals(string $propertyName, string $argumentName = 'other'): MethodGenerator
+    {
+        $body = <<<PHP
+    if(!\$$argumentName instanceof self) {
+       return false;
+    }
+
+    return \$this->$propertyName === \$$argumentName->$propertyName;
+PHP;
+
+        $method = new MethodGenerator(
+            'equals',
+            [
+                new ParameterGenerator($argumentName),
+            ],
+            MethodGenerator::FLAG_PUBLIC,
+            new BodyGenerator($this->parser, $body)
+        );
+        $method->setTyped($this->typed);
+        $method->setReturnType('bool');
+
+        return $method;
+    }
+
+    public function methodMagicToString(string $argumentName): MethodGenerator
+    {
+        $method = new MethodGenerator(
+            '__toString',
+            [],
+            MethodGenerator::FLAG_PUBLIC,
+            new BodyGenerator($this->parser, 'return $this->' . $argumentName . ';')
+        );
+        $method->setTyped($this->typed);
+        $method->setReturnType('string');
+
+        return $method;
+    }
+}
diff --git a/src/ValueObjectFactory.php b/src/ValueObjectFactory.php
index e6dcf23..dded174 100644
--- a/src/ValueObjectFactory.php
+++ b/src/ValueObjectFactory.php
@@ -22,6 +22,7 @@
 use OpenCodeModeling\JsonSchemaToPhpAst\ValueObject\IntegerFactory;
 use OpenCodeModeling\JsonSchemaToPhpAst\ValueObject\NumberFactory;
 use OpenCodeModeling\JsonSchemaToPhpAst\ValueObject\StringFactory;
+use OpenCodeModeling\JsonSchemaToPhpAst\ValueObject\UuidFactory;
 use PhpParser\NodeVisitor;
 use PhpParser\Parser;
 
@@ -33,6 +34,7 @@ final class ValueObjectFactory
     private NumberFactory $numberFactory;
     private DateTimeFactory $dateTimeFactory;
     private EnumFactory $enumFactory;
+    private UuidFactory $uuidFactory;
 
     /**
      * @param Parser $parser
@@ -52,6 +54,7 @@ public function __construct(
         $this->numberFactory = new NumberFactory($parser, $typed);
         $this->dateTimeFactory = new DateTimeFactory($parser, $typed);
         $this->enumFactory = new EnumFactory($parser, $typed, $constNameFilter, $constValueFilter);
+        $this->uuidFactory = new UuidFactory($parser, $typed);
     }
 
     /**
@@ -68,6 +71,8 @@ public function nodeVisitors(TypeDefinition $typeDefinition): array
                 switch ($typeDefinition->format()) {
                     case TypeDefinition::FORMAT_DATETIME:
                         return $this->dateTimeFactory->nodeVisitors($typeDefinition);
+                    case 'uuid':
+                        return $this->uuidFactory->nodeVisitors($typeDefinition);
                     default:
                         return $this->stringFactory->nodeVisitors($typeDefinition);
                 }
@@ -94,6 +99,8 @@ public function classBuilder(TypeDefinition $typeDefinition): ClassBuilder
                 switch ($typeDefinition->format()) {
                     case TypeDefinition::FORMAT_DATETIME:
                         return $this->dateTimeFactory->classBuilder($typeDefinition);
+                    case 'uuid':
+                        return $this->uuidFactory->classBuilder($typeDefinition);
                     default:
                         return $this->stringFactory->classBuilder($typeDefinition);
                 }
diff --git a/tests/ValueObject/UuidFactoryTest.php b/tests/ValueObject/UuidFactoryTest.php
new file mode 100644
index 0000000..acf6696
--- /dev/null
+++ b/tests/ValueObject/UuidFactoryTest.php
@@ -0,0 +1,116 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OpenCodeModelingTest\JsonSchemaToPhpAst\ValueObject;
+
+use OpenCodeModeling\JsonSchemaToPhp\Type\StringType;
+use OpenCodeModeling\JsonSchemaToPhpAst\ValueObject\UuidFactory;
+use PhpParser\NodeTraverser;
+use PhpParser\NodeVisitor;
+
+final class UuidFactoryTest extends BaseTestCase
+{
+    private UuidFactory $uuidFactory;
+
+    public function setUp(): void
+    {
+        parent::setUp();
+        $this->uuidFactory = new UuidFactory($this->parser, true);
+    }
+
+    /**
+     * @test
+     */
+    public function it_generates_code_from_native(): void
+    {
+        $this->assertCode($this->uuidFactory->nodeVisitorsFromNative('uuid'));
+    }
+
+    /**
+     * @test
+     */
+    public function it_generates_code_via_value_object_factory(): void
+    {
+        $this->assertCode(
+            $this->voFactory->nodeVisitors(
+                StringType::fromDefinition(
+                    [
+                        'type' => 'string',
+                        'name' => 'uuid',
+                        'format' => 'uuid',
+                    ]
+                )
+            )
+        );
+    }
+
+    /**
+     * @test
+     */
+    public function it_generates_code_via_value_object_factory_with_class_builder(): void
+    {
+        $classBuilder = $this->voFactory->classBuilder(
+            StringType::fromDefinition(
+                [
+                    'type' => 'string',
+                    'name' => 'uuid',
+                    'format' => 'uuid',
+                ]
+            )
+        );
+        $classBuilder->setName('UuidVO');
+
+        $this->assertCode(
+            $classBuilder->generate($this->parser)
+        );
+    }
+
+    /**
+     * @param array<NodeVisitor> $nodeVisitors
+     */
+    private function assertCode(array $nodeVisitors): void
+    {
+        $ast = $this->parser->parse('<?php final class UuidVO {}');
+
+        $nodeTraverser = new NodeTraverser();
+
+        foreach ($nodeVisitors as $nodeVisitor) {
+            $nodeTraverser->addVisitor($nodeVisitor);
+        }
+
+        $expected = <<<'EOF'
+<?php
+
+final class UuidVO
+{
+    private UuidInterface $uuid;
+    public static function fromString(string $uuid) : self
+    {
+        return new self(Uuid::fromString($uuid));
+    }
+    private function __construct(UuidInterface $uuid)
+    {
+        $this->uuid = $uuid;
+    }
+    public function toString() : string
+    {
+        return $this->uuid;
+    }
+    public function equals($other) : bool
+    {
+        if (!$other instanceof self) {
+            return false;
+        }
+        return $this->uuid === $other->uuid;
+    }
+    public function __toString() : string
+    {
+        return $this->uuid;
+    }
+}
+EOF;
+
+        $this->assertSame($expected, $this->printer->prettyPrintFile($nodeTraverser->traverse($ast)));
+    }
+}