1 files changed, 154 insertions, 0 deletions
diff --git a/src/Http/Validation/Validates.php b/src/Http/Validation/Validates.php
new file mode 100644
index 00000000..2e3a1a73
--- /dev/null
+++ b/src/Http/Validation/Validates.php
@@ -0,0 +1,154 @@
+<?php
+
+namespace Engelsystem\Http\Validation;
+
+use InvalidArgumentException;
+
+class Validates
+{
+    /**
+     * @param mixed $value
+     * @return bool
+     */
+    public function accepted($value): bool
+    {
+        return in_array($value, ['true', '1', 'y', 'yes', 'on', 1, true], true);
+    }
+
+    /**
+     * @param string $value
+     * @param array  $parameters ['min', 'max']
+     * @return bool
+     */
+    public function between($value, $parameters): bool
+    {
+        $this->validateParameterCount(2, $parameters, __FUNCTION__);
+        $size = $this->getSize($value);
+
+        return $size >= $parameters[0] && $size <= $parameters[1];
+    }
+
+    /**
+     * @param mixed $value
+     * @return bool
+     */
+    public function bool($value): bool
+    {
+        return in_array($value, ['1', 1, true, '0', 0, false], true);
+    }
+
+    /**
+     * @param mixed $value
+     * @param array $parameters ['1,2,3,56,7']
+     * @return bool
+     */
+    public function in($value, $parameters): bool
+    {
+        $this->validateParameterCount(1, $parameters, __FUNCTION__);
+
+        return in_array($value, explode(',', $parameters[0]));
+    }
+
+    /**
+     * @param mixed $value
+     * @return bool
+     */
+    public function int($value): bool
+    {
+        return filter_var($value, FILTER_VALIDATE_INT) !== false;
+    }
+
+    /**
+     * @param string $value
+     * @param array  $parameters ['max']
+     * @return bool
+     */
+    public function max($value, $parameters): bool
+    {
+        $this->validateParameterCount(1, $parameters, __FUNCTION__);
+        $size = $this->getSize($value);
+
+        return $size <= $parameters[0];
+    }
+
+    /**
+     * @param string $value
+     * @param array  $parameters ['min']
+     * @return bool
+     */
+    public function min($value, $parameters)
+    {
+        $this->validateParameterCount(1, $parameters, __FUNCTION__);
+        $size = $this->getSize($value);
+
+        return $size >= $parameters[0];
+    }
+
+    /**
+     * @param mixed $value
+     * @param array $parameters ['1,2,3,56,7']
+     * @return bool
+     */
+    public function notIn($value, $parameters): bool
+    {
+        $this->validateParameterCount(1, $parameters, __FUNCTION__);
+
+        return !$this->in($value, $parameters);
+    }
+
+    /**
+     * @param mixed $value
+     * @return bool
+     */
+    public function numeric($value): bool
+    {
+        return is_numeric($value);
+    }
+
+    /**
+     * @param mixed $value
+     * @return bool
+     */
+    public function required($value): bool
+    {
+        if (
+            is_null($value)
+            || (is_string($value) && trim($value) === '')
+        ) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * @param mixed $value
+     * @return int|float
+     */
+    protected function getSize($value)
+    {
+        if (is_numeric($value)) {
+            return $value;
+        }
+
+        return mb_strlen($value);
+    }
+
+    /**
+     * @param int    $count
+     * @param array  $parameters
+     * @param string $rule
+     *
+     * @throws InvalidArgumentException
+     */
+    protected function validateParameterCount(int $count, array $parameters, string $rule)
+    {
+        if (count($parameters) < $count) {
+            throw new InvalidArgumentException(sprintf(
+                'The rule "%s" requires at least %d parameters',
+                $rule,
+                $count
+            ));
+        }
+    }
+}