<?php

namespace Nette\Schema\Elements;

use Nette;
use Nette\Schema\Context;
use Nette\Schema\Helpers;
use Nette\Schema\Schema;

final class Structure implements Schema
{
    use Base;
    use Nette\SmartObject;

    /** @var Schema[] */
    private $items;

    /** @var Schema|null  for array|list */
    private $otherItems;

    /** @var array{?int, ?int} */
    private $range = [null, null];

    /** @var bool */
    private $skipDefaults = false;

    /**
     * @param  Schema[]  $items
     */
    public function __construct(array $items)
    {
        (function (Schema ...$items) {})(...array_values($items));
        $this->items = $items;
        $this->castTo = 'object';
        $this->required = true;
    }

    public function default($value): self
    {
        throw new Nette\InvalidStateException('Structure cannot have default value.');
    }

    public function min(?int $min): self
    {
        $this->range[0] = $min;
        return $this;
    }

    public function max(?int $max): self
    {
        $this->range[1] = $max;
        return $this;
    }

    /**
     * @param  string|Schema  $type
     */
    public function otherItems($type = 'mixed'): self
    {
        $this->otherItems = $type instanceof Schema ? $type : new Type($type);
        return $this;
    }

    public function skipDefaults(bool $state = true): self
    {
        $this->skipDefaults = $state;
        return $this;
    }

    public function normalize($value, Context $context)
    {
        if ($prevent = (is_array($value) && isset($value[Helpers::PreventMerging]))) {
            unset($value[Helpers::PreventMerging]);
        }

        $value = $this->doNormalize($value, $context);
        if (is_object($value)) {
            $value = (array) $value;
        }

        if (is_array($value)) {
            foreach ($value as $key => $val) {
                $itemSchema = $this->items[$key] ?? $this->otherItems;
                if ($itemSchema) {
                    $context->path[] = $key;
                    $value[$key] = $itemSchema->normalize($val, $context);
                    array_pop($context->path);
                }
            }

            if ($prevent) {
                $value[Helpers::PreventMerging] = true;
            }
        }

        return $value;
    }

    public function merge($value, $base)
    {
        if (is_array($value) && isset($value[Helpers::PreventMerging])) {
            unset($value[Helpers::PreventMerging]);
            $base = null;
        }

        if (is_array($value) && is_array($base)) {
            $index = 0;
            foreach ($value as $key => $val) {
                if ($key === $index) {
                    $base[] = $val;
                    $index++;
                } elseif (array_key_exists($key, $base)) {
                    $itemSchema = $this->items[$key] ?? $this->otherItems;
                    $base[$key] = $itemSchema
                        ? $itemSchema->merge($val, $base[$key])
                        : Helpers::merge($val, $base[$key]);
                } else {
                    $base[$key] = $val;
                }
            }

            return $base;
        }

        return Helpers::merge($value, $base);
    }

    public function complete($value, Context $context)
    {
        if ($value === null) {
            $value = []; // is unable to distinguish null from array in NEON
        }

        $this->doDeprecation($context);

        if (!$this->doValidate($value, 'array', $context)
            || !$this->doValidateRange($value, $this->range, $context)
        ) {
            return;
        }

        $errCount = count($context->errors);
        $items = $this->items;
        if ($extraKeys = array_keys(array_diff_key($value, $items))) {
            if ($this->otherItems) {
                $items += array_fill_keys($extraKeys, $this->otherItems);
            } else {
                $keys = array_map('strval', array_keys($items));
                foreach ($extraKeys as $key) {
                    $hint = Nette\Utils\ObjectHelpers::getSuggestion($keys, (string) $key);
                    $context->addError(
                        'Unexpected item %path%' . ($hint ? ", did you mean '%hint%'?" : '.'),
                        Nette\Schema\Message::UnexpectedItem,
                        ['hint' => $hint]
                    )->path[] = $key;
                }
            }
        }

        foreach ($items as $itemKey => $itemVal) {
            $context->path[] = $itemKey;
            if (array_key_exists($itemKey, $value)) {
                $value[$itemKey] = $itemVal->complete($value[$itemKey], $context);
            } else {
                $default = $itemVal->completeDefault($context); // checks required item
                if (!$context->skipDefaults && !$this->skipDefaults) {
                    $value[$itemKey] = $default;
                }
            }

            array_pop($context->path);
        }

        if (count($context->errors) > $errCount) {
            return;
        }

        return $this->doFinalize($value, $context);
    }

    public function completeDefault(Context $context)
    {
        return $this->required
            ? $this->complete([], $context)
            : null;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTExMjY5MzUzNjgxMzcyNiAxODI4NjIzODg4MzQyOTg2IDc4NDEwMTI3NTg0MzUxMjg=