Add email page property

src/Pages/Properties/Email.php

@@ -0,0 +1,67 @@
+<?php
+
+namespace Notion\Pages\Properties;
+
+/**
+ * @psalm-type EmailJson = array{
+ *      id: string,
+ *      type: "email",
+ *      email: string,
+ * }
+ */
+class Email implements PropertyInterface
+{
+    private const TYPE = Property::TYPE_EMAIL;
+
+    private Property $property;
+
+    private string $email;
+
+    private function __construct(Property $property, string $email)
+    {
+        $this->property = $property;
+        $this->email = $email;
+    }
+
+    public static function create(string $email): self
+    {
+        $property = Property::create("", self::TYPE);
+
+        return new self($property, $email);
+    }
+
+    public static function fromArray(array $array): self
+    {
+        /** @psalm-var EmailJson $array */
+
+        $property = Property::fromArray($array);
+
+        $email = $array[self::TYPE];
+
+        return new self($property, $email);
+    }
+
+    public function toArray(): array
+    {
+        $array = $this->property->toArray();
+
+        $array[self::TYPE] = $this->email;
+
+        return $array;
+    }
+
+    public function property(): Property
+    {
+        return $this->property;
+    }
+
+    public function email(): string
+    {
+        return $this->email;
+    }
+
+    public function withEmail(string $email): self
+    {
+        return new self($this->property, $email);
+    }
+}

src/Pages/Properties/Factory.php

@@ -24,6 +24,7 @@ public static function fromArray(array $array): PropertyInterface
             Property::TYPE_PEOPLE => People::fromArray($array),
             Property::TYPE_CHECKBOX => Checkbox::fromArray($array),
             Property::TYPE_URL => Url::fromArray($array),
+            Property::TYPE_EMAIL => Email::fromArray($array),
             default => throw new Exception("Invalid property type: '{$type}'"),
         };
     }

src/Pages/Properties/Property.php

@@ -136,10 +136,10 @@ public function isUrl(): bool
         return $this->type === self::TYPE_URL;
     }
 
-    // public function isEmail(): bool
-    // {
-    //     return $this->type === self::TYPE_EMAIL;
-    // }
+    public function isEmail(): bool
+    {
+        return $this->type === self::TYPE_EMAIL;
+    }
 
     // public function isPhoneNumber(): bool
     // {

tests/Unit/Pages/Properties/EmailTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Notion\Test\Unit\Pages\Properties;
+
+use Notion\Pages\Properties\Email;
+use Notion\Pages\Properties\Factory;
+use PHPUnit\Framework\TestCase;
+
+class EmailTest extends TestCase
+{
+    public function test_create(): void
+    {
+        $email = Email::create("mario@domain.com");
+
+        $this->assertTrue($email->property()->isEmail());
+        $this->assertEquals("mario@domain.com", $email->email());
+    }
+
+    public function test_change_email(): void
+    {
+        $email = Email::create("mario@domain.com")->withEmail("luigi@domain.com");
+
+        $this->assertEquals("luigi@domain.com", $email->email());
+    }
+
+    public function test_array_conversion(): void
+    {
+        $array = [
+            "id" => "abc",
+            "type" => "email",
+            "email" => "mario@domain.com",
+        ];
+
+        $email = Email::fromArray($array);
+        $fromFactory = Factory::fromArray($array);
+
+        $this->assertEquals($array, $email->toArray());
+        $this->assertEquals($array, $fromFactory->toArray());
+    }
+}