<?php

declare (strict_types=1);
/**
 * This file is part of the Nette Framework (https://nette.org)
 * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
 */
namespace GOSP\Nette\Schema;

use GOSP\Nette;
/**
 * Schema validator.
 */
final class Processor
{
    /** @var list<\Closure(Context): void> */
    public array $onNewContext = [];
    private Context $context;
    private bool $skipDefaults = false;
    public function skipDefaults(bool $value = true): void
    {
        $this->skipDefaults = $value;
    }
    /**
     * Normalizes and validates data. Result is a clean completed data.
     * @throws ValidationException
     */
    public function process(Schema $schema, mixed $data): mixed
    {
        $this->createContext();
        $data = $schema->normalize($data, $this->context);
        $this->throwsErrors();
        $data = $schema->complete($data, $this->context);
        $this->throwsErrors();
        return $data;
    }
    /**
     * Normalizes and validates and merges multiple data. Result is a clean completed data.
     * @param  list<mixed>  $dataset
     * @throws ValidationException
     */
    public function processMultiple(Schema $schema, array $dataset): mixed
    {
        $this->createContext();
        $flatten = null;
        $first = true;
        foreach ($dataset as $data) {
            $data = $schema->normalize($data, $this->context);
            $this->throwsErrors();
            $flatten = $first ? $data : $schema->merge($data, $flatten);
            $first = false;
        }
        $data = $schema->complete($flatten, $this->context);
        $this->throwsErrors();
        return $data;
    }
    /** @return list<string> */
    public function getWarnings(): array
    {
        $res = [];
        foreach ($this->context->warnings as $message) {
            $res[] = $message->toString();
        }
        return $res;
    }
    private function throwsErrors(): void
    {
        if ($this->context->errors) {
            throw new ValidationException(null, $this->context->errors);
        }
    }
    private function createContext(): void
    {
        $this->context = new Context();
        $this->context->skipDefaults = $this->skipDefaults;
        \GOSP\Nette\Utils\Arrays::invoke($this->onNewContext, $this->context);
    }
}