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<?php
namespace Coast;
use Coast\Validator\Rule;
use Iterator;
use JsonSerializable;
class Validator extends Rule implements Iterator, JsonSerializable
{
const STEP_BREAK = 'break';
protected $_steps = [];
protected $_rules = [];
public function step($step, $index = null)
{
$index = !isset($index)
? count($this->_steps)
: $index;
array_splice($this->_steps, $index, 0, [$step]);
if ($step instanceof Rule) {
$this->_rules[$step->name()][] = $step;
}
return $this;
}
public function steps($steps = null, $index = null)
{
if (func_num_args() > 0) {
foreach ($steps as $i => $step) {
$this->step($step, isset($index) ? $index + $i : $index);
}
return $this;
}
return $this->_steps;
}
public function rule($name)
{
return isset($this->_rules[$name])
? $this->_rules[$name]
: null;
}
public function rules()
{
return $this->_rules;
}
public function __call($name, $args)
{
if ($name == self::STEP_BREAK) {
$step = $name;
} else {
$not = false;
if (preg_match('/^not(\w+)$/', $name, $match)) {
$not = true;
$name = $match[1];
}
$map = [
'array' => 'arrayType',
'boolean' => 'booleanType',
'decimal' => 'decimalType',
'float' => 'floatType',
'integer' => 'integerType',
'number' => 'numberType',
'object' => 'objectType',
'string' => 'stringType',
];
if (isset($map[$name])) {
$name = $map[$name];
}
$class = get_class() . '\\Rule\\' . ucfirst($name);
$reflec = new \ReflectionClass($class);
$step = $reflec->newInstanceArgs($args);
if ($not) {
$step = new Rule\Not($step);
}
}
return $this->step($step);
}
public function _validate($value, $context = null)
{
$result = null;
foreach ($this->_steps as $step) {
if (($step == self::STEP_BREAK && $result === false) || ($step == self::STEP_BREAK && $result === null && !isset($value))) {
break;
} else if ($step instanceof Rule) {
$result = $step($value, $context);
if (!$result) {
$this->errors($step->errors());
}
}
}
}
public function __clone()
{
$steps = $this->_steps;
$this->_steps = [];
$this->_rules = [];
foreach ($steps as $step) {
if ($step instanceof Rule) {
$step = clone $step;
}
$this->step($step);
}
}
public function rewind()
{
reset($this->_steps);
}
public function current()
{
return current($this->_steps);
}
public function key()
{
return key($this->_steps);
}
public function next()
{
next($this->_steps);
}
public function valid()
{
return key($this->_steps) !== null;
}
public function jsonSerialize()
{
return [
'steps' => $this->_steps,
'rules' => $this->_rules,
];
}
}