<?php

namespace Opis\JsonSchema\Keywords;

use Opis\JsonSchema\Errors\ValidationError;

class SlotsKeyword implements \Opis\JsonSchema\Keyword
{
    use ErrorTrait;

    /** @var bool[]|Schema[]|object[]|string[] */
    protected array $slots;

    /** @var string[] */
    protected array $stack = [];

    /**
     * @param string[]|bool[]|object[]|Schema[] $slots
     */
    public function __construct(array $slots)
    {
        $this->slots = $slots;
    }

    /**
     * @inheritDoc
     */
    public function validate(
        \Opis\JsonSchema\ValidationContext $context,
        \Opis\JsonSchema\Schema $schema,
    ): ?ValidationError {
        $newContext = $context->newInstance($context->currentData(), $schema);

        foreach ($this->slots as $name => $fallback) {
            $slot = $this->resolveSlotSchema($name, $context);

            if ($slot === null) {
                $save = true;
                if (is_string($fallback)) {
                    $save = false;
                    $fallback = $this->resolveSlot($fallback, $context);
                }

                if ($fallback === true) {
                    continue;
                }

                if ($fallback === false) {
                    return $this->error($schema, $context, '$slots', "Required slot '{slot}' is missing", [
                        'slot' => $name,
                    ]);
                }

                if (is_object($fallback) && !($fallback instanceof \Opis\JsonSchema\Schema)) {
                    $fallback = $context->loader()->loadObjectSchema($fallback);
                    if ($save) {
                        $this->slots[$name] = $fallback;
                    }
                }

                $slot = $fallback;
            }

            if ($error = $slot->validate($newContext)) {
                return $this->error($schema, $context,'$slots', "Schema for slot '{slot}' was not matched", [
                    'slot' => $name,
                ], $error);
            }
        }

        return null;
    }

    /**
     * @param string $name
     * @param ValidationContext $context
     * @return Schema|null
     */
    protected function resolveSlotSchema(
        string $name,
        \Opis\JsonSchema\ValidationContext $context,
    ): ?\Opis\JsonSchema\Schema {
        do {
            $slot = $context->slot($name);
        } while ($slot === null && $context = $context->parent());

        return $slot;
    }

    /**
     * @param string $name
     * @param ValidationContext $context
     * @return bool|Schema
     */
    protected function resolveSlot(string $name, \Opis\JsonSchema\ValidationContext $context)
    {
        $slot = $this->resolveSlotSchema($name, $context);

        if ($slot !== null) {
            return $slot;
        }

        if (!isset($this->slots[$name])) {
            return false;
        }

        $slot = $this->slots[$name];

        if (is_bool($slot)) {
            return $slot;
        }

        if (is_object($slot)) {
            if ($slot instanceof \Opis\JsonSchema\Schema) {
                return $slot;
            }

            $slot = $context->loader()->loadObjectSchema($slot);
            $this->slots[$name] = $slot;
            return $slot;
        }

        if (!is_string($slot)) {
            // Looks like the slot is missing
            return false;
        }

        if (in_array($slot, $this->stack)) {
            // Recursive
            return false;
        }

        $this->stack[] = $slot;
        $slot = $this->resolveSlot($slot, $context);
        array_pop($this->stack);

        return $slot;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NjYwNjc0MDE3MTE4MDY2OCA5MDExMTEwOTUyNTYxNzk4IDkwMTYxMjk2MjEyMTY4MDU=