<?php
/* ============================================================================
* Copyright 2020 Zindex Software
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ============================================================================ */
namespace Opis\JsonSchema\Keywords;
use Opis\JsonSchema\{
ValidationContext,
Keyword,
Schema
};
use Opis\JsonSchema\Errors\ValidationError;
class ContainsKeyword implements Keyword
{
use ErrorTrait;
/** @var bool|object */
protected $value;
protected ?int $min = null;
protected ?int $max = null;
/**
* @param bool|object $value
* @param int|null $min
* @param int|null $max
*/
public function __construct($value, ?int $min = null, ?int $max = null)
{
$this->value = $value;
$this->min = $min;
$this->max = $max;
}
/**
* @inheritDoc
*/
public function validate(ValidationContext $context, Schema $schema): ?ValidationError
{
$data = $context->currentData();
$count = count($data);
$context->markAllAsEvaluatedItems();
if ($this->min > $count) {
return $this->error($schema, $context, 'minContains', 'Array must have at least {min} items', [
'min' => $this->min,
'count' => $count,
]);
}
$isMaxNull = $this->max === null;
if ($this->value === true) {
if ($count) {
if (!$isMaxNull && $count > $this->max) {
return $this->error($schema, $context, 'maxContains', 'Array must have at most {max} items', [
'max' => $this->max,
'count' => $count,
]);
}
return null;
}
return $this->error($schema, $context, 'contains', 'Array must not be empty');
}
if ($this->value === false) {
return $this->error($schema, $context, 'contains', 'Any array is invalid');
}
if (is_object($this->value) && !($this->value instanceof Schema)) {
$this->value = $context->loader()->loadObjectSchema($this->value);
}
$errors = [];
$valid = 0;
$isMinNull = $this->min === null;
if ($isMaxNull && $isMinNull) {
foreach ($data as $key => $item) {
$context->pushDataPath($key);
$error = $this->value->validate($context);
$context->popDataPath();
if ($error) {
$errors[] = $error;
} else {
return null;
}
}
return $this->error($schema, $context, 'contains', 'At least one array item must match schema', [],
$errors);
}
foreach ($data as $key => $item) {
$context->pushDataPath($key);
$error = $this->value->validate($context);
$context->popDataPath();
if ($error) {
$errors[] = $error;
} else {
$valid++;
}
}
if (!$isMinNull && $valid < $this->min) {
return $this->error($schema, $context, 'minContains', 'At least {min} array items must match schema', [
'min' => $this->min,
'count' => $valid,
]);
}
if (!$isMaxNull && $valid > $this->max) {
return $this->error($schema, $context, 'maxContains', 'At most {max} array items must match schema', [
'max' => $this->max,
'count' => $valid,
]);
}
if ($valid) {
return null;
}
return $this->error($schema, $context, 'contains', 'At least one array item must match schema', [],
$errors);
}
}