<?php

/**
 * This file is part of the "dragon-code/json-fallback" project.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @author Andrey Helldar <helldar@dragon-code.pro>
 * @copyright 2024 Andrey Helldar
 * @license MIT
 *
 * @see https://github.com/TheDragonCode/json-fallback
 */

declare(strict_types=1);

namespace LaravelLang\JsonFallback;

use Illuminate\Translation\Translator as BaseTranslator;

class Translator extends BaseTranslator
{
    public function get($key, array $replace = [], $locale = null, $fallback = true)
    {
        $locale = $locale ?: $this->locale;

        // For JSON translations, there is only one file per locale, so we will simply load
        // that file and then we will be ready to check the array for the key. These are
        // only one level deep so we do not need to do any fancy searching through it.
        $this->load('*', '*', $locale);

        $line = $this->loaded['*']['*'][$locale][$key] ?? null;

        if ($fallback && $line === null) {
            $this->load('*', '*', $this->fallback);

            $line = $this->loaded['*']['*'][$this->fallback][$key] ?? null;
        }

        // If we can't find a translation for the JSON key, we will attempt to translate it
        // using the typical translation file. This way developers can always just use a
        // helper such as __ instead of having to pick between trans or __ with views.
        if (! isset($line)) {
            [$namespace, $group, $item] = $this->parseKey($key);

            // Here we will get the locale that should be used for the language line. If one
            // was not passed, we will use the default locales which was given to us when
            // the translator was instantiated. Then, we can load the lines and return.
            $locales = $fallback ? $this->localeArray($locale) : [$locale];

            foreach ($locales as $locale) {
                if (! is_null($line = $this->getLine($namespace, $group, $locale, $item, $replace))) {
                    return $line;
                }
            }
        }

        // If the line doesn't exist, we will return back the key which was requested as
        // that will be quick to spot in the UI if language keys are wrong or missing
        // from the application's language files. Otherwise we can return the line.
        return $this->makeReplacements($line ?: $key, $replace);
    }
}
