<?php

namespace App\CMS\Repositories\Settings;

use App\Models\Settings as SettingsModel;
use Mcamara\LaravelLocalization\Facades\LaravelLocalization;

class Settings
{
    /**
     * Prepares common query for selecting settings
     * @return mixed
     */
    protected function getSettingsQuery()
    {
        return SettingsModel::select(['key', 'value', 'language'])
                            ->where('language', LaravelLocalization::getCurrentLocale())
                            ->orWhere('language', null)
                            ->orderBy('language', 'ASC');
    }

    /**
     * Load all settings
     * @return \stdClass
     */
    public function getAll()
    {
        $settings = $this->getSettingsQuery()
                         ->get();

        return $this->returnPairs($settings);
    }

    /**
     * Get all settings with language info
     * @return \stdClass
     */
    public function getAllWithLanguage()
    {
        $settings = $this->getSettingsQuery()
                         ->get();

        $data = new \stdClass();
        foreach ($settings as $conf) {
            $data->{$conf->key} = [
                'val'  => $conf->value,
                'lang' => $conf->language
            ];
        }

        return $data;
    }

    /**
     * Load only config for views
     * @return \stdClass
     */
    public function getForView()
    {
        $settings = $this->getSettingsQuery()
                         ->where('load_into_views', 1)
                         ->get();

        return $this->returnPairs($settings);
    }

    /**
     * From pair <key, value> create object key => value
     *
     * @param $settings
     *
     * @return \stdClass
     */
    private function returnPairs($settings)
    {
        $data = new \stdClass();
        foreach ($settings as $conf) {
            $data->{$conf->key} = $conf->value;
        }

        return $data;
    }

    /**
     * Save settings
     *
     * @param array $data
     */
    public function save(array $data)
    {
        $commonSettings = isset($data['commonSettings']) ? $data['commonSettings'] : [];
        unset($data['commonSettings']);

        foreach ($data as $key => $value) {
            // select language for this setting key
            $language = isset($commonSettings[$key]) ? null : LaravelLocalization::getCurrentLocale();
            $setting = SettingsModel::firstOrNew(['language' => $language, 'key' => $key]);

            if ($setting->value == $value) {
                continue;
            }

            // set value and save or delete
            $setting->value = $value;
            empty($value) ? $setting->delete() : $setting->save();
        }
    }
}