From 55792e017c87536f627ab89f3336807f3bdb4e86 Mon Sep 17 00:00:00 2001
From: Khushboo Verma <43381712+vermakhushboo@users.noreply.github.com>
Date: Wed, 27 Dec 2023 19:44:12 +0530
Subject: [PATCH] Add multiple validator

---
 src/Http/Validator/Multiple.php  | 115 +++++++++++++++++++++++++++++++
 tests/Validator/MultipleTest.php |  35 ++++++++++
 2 files changed, 150 insertions(+)
 create mode 100644 src/Http/Validator/Multiple.php
 create mode 100644 tests/Validator/MultipleTest.php

diff --git a/src/Http/Validator/Multiple.php b/src/Http/Validator/Multiple.php
new file mode 100644
index 00000000..4c919377
--- /dev/null
+++ b/src/Http/Validator/Multiple.php
@@ -0,0 +1,115 @@
+<?php
+
+namespace Utopia\Http\Validator;
+
+use Utopia\Http\Validator;
+
+/**
+ * Multiple
+ *
+ * Multiple validator is a container of multiple validations each acting as a rule.
+ *
+ * @package Utopia\Validator
+ */
+class Multiple extends Validator
+{
+    /**
+     * @var Validator[]
+     */
+    protected $rules = [];
+
+    protected $type = self::TYPE_MIXED;
+
+    /**
+     * Constructor
+     *
+     * Multiple constructor can get any number of arguments containing Validator instances using PHP func_get_args function.
+     *
+     * Example:
+     *
+     * $multiple = new Multiple([$validator1, $validator2]);
+     * $multiple = new Multiple([$validator1, $validator2, $validator3], self::TYPE_STRING);
+     */
+    public function __construct(array $rules, ?string $type = self::TYPE_MIXED)
+    {
+        foreach ($rules as $rule) {
+            $this->addRule($rule);
+        }
+
+        $this->type = $type;
+    }
+    /**
+     * Add rule
+     *
+     * Add a new rule to the end of the rules containing array
+     *
+     * @param Validator $rule
+     * @return $this
+     */
+    public function addRule(Validator $rule)
+    {
+        $this->rules[] = $rule;
+
+        return $this;
+    }
+
+    /**
+     * Get Description
+     *
+     * Returns validator description
+     *
+     * @return string
+     */
+    public function getDescription(): string
+    {
+        $description = '';
+        foreach ($this->rules as $key => $rule) {
+            $description .= ++$key . '. ' . $rule->getDescription() . " \n";
+        }
+
+        return $description;
+    }
+
+    /**
+     * Is valid
+     *
+     * Validation will pass when all rules are valid if only one of the rules is invalid validation will fail.
+     *
+     * @param  mixed $value
+     * @return bool
+     */
+    public function isValid(mixed $value): bool
+    {
+        foreach ($this->rules as $rule) { /* @var $rule Validator */
+            if (false === $rule->isValid($value)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Get Type
+     *
+     * Returns validator type.
+     *
+     * @return string
+     */
+    public function getType(): string
+    {
+        return $this->type;
+    }
+
+    /**
+     * Is array
+     *
+     * Function will return true if object is array.
+     *
+     * @return bool
+     */
+    public function isArray(): bool
+    {
+        return true;
+    }
+}
diff --git a/tests/Validator/MultipleTest.php b/tests/Validator/MultipleTest.php
new file mode 100644
index 00000000..348c3244
--- /dev/null
+++ b/tests/Validator/MultipleTest.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Utopia\Http\Validator;
+
+use PHPUnit\Framework\TestCase;
+
+class MultipleTest extends TestCase
+{
+    protected Multiple $validator;
+
+    public function setUp(): void
+    {
+        $this->validator = new Multiple([new Text(20), new URL()], Multiple::TYPE_STRING);
+    }
+
+    public function testIsValid()
+    {
+        $this->assertEquals('string', $this->validator->getType());
+        $this->assertEquals("1. Value must be a valid string and at least 1 chars and no longer than 20 chars \n2. Value must be a valid URL \n", $this->validator->getDescription());
+
+        // Valid URL but invalid text length
+        $this->assertFalse($this->validator->isValid('http://example.com/very-long-url'));
+
+        // Valid text within length, but invalid URL
+        $this->assertFalse($this->validator->isValid('hello world'));
+
+        // Both conditions satisfied
+        $this->assertTrue($this->validator->isValid('http://example.com'));
+        $this->assertTrue($this->validator->isValid('https://google.com'));
+
+        // Neither condition satisfied
+        $this->assertFalse($this->validator->isValid('example.com/hello-world'));
+        $this->assertFalse($this->validator->isValid(''));
+    }
+}