<?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 Matomo\Dependencies\McpServer\Opis\JsonSchema\Parsers\Keywords;

use Matomo\Dependencies\McpServer\Opis\JsonSchema\Keyword;
use Matomo\Dependencies\McpServer\Opis\JsonSchema\Info\SchemaInfo;
use Matomo\Dependencies\McpServer\Opis\JsonSchema\Parsers\KeywordParser;
use Matomo\Dependencies\McpServer\Opis\JsonSchema\Parsers\DataKeywordTrait;
use Matomo\Dependencies\McpServer\Opis\JsonSchema\Parsers\SchemaParser;
use Matomo\Dependencies\McpServer\Opis\JsonSchema\Keywords\RequiredDataKeyword;
use Matomo\Dependencies\McpServer\Opis\JsonSchema\Keywords\RequiredKeyword;
class RequiredKeywordParser extends KeywordParser
{
    use DataKeywordTrait;
    /**
     * @inheritDoc
     */
    public function type() : string
    {
        return self::TYPE_OBJECT;
    }
    /**
     * @inheritDoc
     */
    public function parse(SchemaInfo $info, SchemaParser $parser, object $shared) : ?Keyword
    {
        $schema = $info->data();
        if (!$this->keywordExists($schema)) {
            return null;
        }
        $value = $this->keywordValue($schema);
        $filter = $this->propertiesFilter($parser, $schema);
        if ($this->isDataKeywordAllowed($parser, $this->keyword)) {
            if ($pointer = $this->getDataKeywordPointer($value)) {
                return new RequiredDataKeyword($pointer, $filter);
            }
        }
        if (!is_array($value)) {
            throw $this->keywordException("{keyword} must be an array of strings", $info);
        }
        foreach ($value as $name) {
            if (!is_string($name)) {
                throw $this->keywordException("{keyword} must be an array of strings", $info);
            }
        }
        if ($filter) {
            $value = array_filter($value, $filter);
        }
        return $value ? new RequiredKeyword(array_unique($value)) : null;
    }
    /**
     * @param SchemaParser $parser
     * @param object $schema
     * @return callable|null
     */
    protected function propertiesFilter(SchemaParser $parser, object $schema) : ?callable
    {
        if (!$parser->option('allowDefaults')) {
            return null;
        }
        if (!property_exists($schema, 'properties') || !is_object($schema->properties)) {
            return null;
        }
        $props = $schema->properties;
        return static function (string $name) use($props) {
            if (!property_exists($props, $name)) {
                return \true;
            }
            if (is_object($props->{$name}) && property_exists($props->{$name}, 'default')) {
                return \false;
            }
            return \true;
        };
    }
}
