<?php
/************************************************************************
 * This file is part of EspoCRM.
 *
 * EspoCRM - Open Source CRM application.
 * Copyright (C) 2014-2023 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
 * Website: https://www.espocrm.com
 *
 * EspoCRM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * EspoCRM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with EspoCRM. If not, see http://www.gnu.org/licenses/.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
 ************************************************************************/

namespace Espo\Tools\LabelManager;

use Espo\Core\Utils\Json;
use Espo\Core\Di;
use Espo\Core\InjectableFactory;
use Espo\Core\Utils\Language;

use stdClass;

class LabelManager implements
    Di\DefaultLanguageAware,
    Di\MetadataAware,
    Di\FileManagerAware,
    Di\DataCacheAware
{
    use Di\DefaultLanguageSetter;
    use Di\MetadataSetter;
    use Di\FileManagerSetter;
    use Di\DataCacheSetter;

    /**
     * @var string[]
     */
    protected $ignoreList = [
        'Global.sets',
    ];

    public function __construct(private InjectableFactory $injectableFactory)
    {}

    /**
     * @return string[]
     */
    public function getScopeList(): array
    {
        $scopeList = [];

        $languageObj = $this->defaultLanguage;

        $data = $languageObj->getAll();

        foreach (array_keys($data) as $scope) {
            if (!in_array($scope, $scopeList)) {
                $scopeList[] = $scope;
            }
        }

        foreach ($this->metadata->get('scopes') as $scope => $data) {
            if (!in_array($scope, $scopeList)) {
                $scopeList[] = $scope;
            }
        }

        return $scopeList;
    }

    public function getScopeData(string $language, string $scope): stdClass
    {
        $languageObj = $this->injectableFactory->createWith(Language::class, [
            'language' => $language,
        ]);

        $data = $languageObj->get($scope);

        if (empty($data)) {
            return (object) [];
        }

        if ($this->metadata->get(['scopes', $scope, 'entity'])) {
            if (empty($data['fields'])) {
                $data['fields'] = [];
            }

            foreach ($this->metadata->get(['entityDefs', $scope, 'fields']) as $field => $item) {
                if (!array_key_exists($field, $data['fields'])) {
                    $data['fields'][$field] = $languageObj->get('Global.fields.' . $field);
                    if (is_null($data['fields'][$field])) {
                        $data['fields'][$field] = '';
                    }
                }
            }

            if (empty($data['links'])) {
                $data['links'] = [];
            }

            foreach ($this->metadata->get(['entityDefs', $scope, 'links']) as $link => $item) {
                if (!array_key_exists($link, $data['links'])) {
                    $data['links'][$link] = $languageObj->get('Global.links.' . $link);
                    if (is_null($data['links'][$link])) {
                        $data['links'][$link] = '';
                    }
                }
            }

            if (empty($data['labels'])) {
                $data['labels'] = [];
            }

            if (!array_key_exists('Create ' . $scope, $data['labels'])) {
                $data['labels']['Create ' . $scope] = '';
            }
        }

        foreach ($this->metadata->get(['entityDefs', $scope, 'fields'], []) as $field => $item) {
            if (!$this->metadata->get(['entityDefs', $scope, 'fields', $field, 'options'])) {
                continue;
            }

            $optionsData = [];
            $optionList = $this->metadata->get(['entityDefs', $scope, 'fields', $field, 'options'], []);

            if (!array_key_exists('options', $data)) {
                $data['options'] = [];
            }

            if (!array_key_exists($field, $data['options'])) {
                $data['options'][$field] = [];
            }
            foreach ($optionList as $option) {
                if (empty($option)) {
                    continue;
                }

                $optionsData[$option] = $option;

                if (array_key_exists($option, $data['options'][$field])) {
                    if (!empty($data['options'][$field][$option])) {
                        $optionsData[$option] = $data['options'][$field][$option];
                    }
                }
            }
            $data['options'][$field] = $optionsData;
        }

        if ($scope === 'Global') {
            if (empty($data['scopeNames'])) {
                $data['scopeNames'] = [];
            }

            if (empty($data['scopeNamesPlural'])) {
                $data['scopeNamesPlural'] = [];
            }

            foreach ($this->metadata->get(['scopes']) as $scopeKey => $item) {
                if (!empty($item['entity'])) {
                    if (empty($data['scopeNamesPlural'][$scopeKey])) {
                        $data['scopeNamesPlural'][$scopeKey] = '';
                    }
                }

                if (empty($data['scopeNames'][$scopeKey])) {
                    $data['scopeNames'][$scopeKey] = '';
                }
            }
        }

        foreach ($data as $key => $value) {
            if (empty($value)) {
                unset($data[$key]);
            }
        }

        $finalData = [];

        foreach ($data as $category => $item) {
            if (in_array($scope . '.' . $category, $this->ignoreList)) {
                continue;
            }

            foreach ($item as $key => $categoryItem) {
                if (is_array($categoryItem)) {
                    foreach ($categoryItem as $subKey => $subItem) {
                        $finalData[$category][$category .'[.]' . $key .'[.]' . $subKey] = $subItem;
                    }
                }
                else {
                    $finalData[$category][$category .'[.]' . $key] = $categoryItem;
                }
            }
        }

        return json_decode(Json::encode($finalData));
    }

    /**
     * @param array<string, string> $labels
     */
    public function saveLabels(string $language, string $scope, array $labels): stdClass
    {
        $languageObj = $this->injectableFactory->createWith(Language::class, [
            'language' => $language,
        ]);

        $languageOriginalObj = $this->injectableFactory->createWith(Language::class, [
            'language' => $language,
            'noCustom' => true,
        ]);

        $returnDataHash = [];

        foreach ($labels as $key => $value) {
            $arr = explode('[.]', $key);
            $category = $arr[0];
            $name = $arr[1];

            $setPath = [$scope, $category, $name];

            $setValue = null;

            if (count($arr) == 2) {
                if ($value !== '') {
                    $languageObj->set($scope, $category, $name, $value);
                    $setValue = $value;
                }
                else {
                    $setValue = $languageOriginalObj->get(implode('.', [$scope, $category, $name]));
                    if (is_null($setValue) && $scope !== 'Global') {
                        $setValue = $languageOriginalObj->get(implode('.', ['Global', $category, $name]));
                    }

                    $languageObj->delete($scope, $category, $name);
                }
            }
            else if (count($arr) == 3) {
                $name = $arr[1];
                $attribute = $arr[2];

                $data = $languageObj->get($scope . '.' . $category . '.' . $name);

                $setPath[] = $attribute;

                if (is_array($data)) {
                    if ($value !== '') {
                        $data[$attribute] = $value;
                        $setValue = $value;
                    }
                    else {
                        $dataOriginal = $languageOriginalObj->get($scope . '.' . $category . '.' . $name);

                        if (is_array($dataOriginal) && isset($dataOriginal[$attribute])) {
                            $data[$attribute] = $dataOriginal[$attribute];
                            $setValue = $dataOriginal[$attribute];
                        }
                    }

                    $languageObj->set($scope, $category, $name, $data);
                }
            }

            if (!is_null($setValue)) {
                $frontKey = implode('[.]', $setPath);

                $returnDataHash[$frontKey] = $setValue;
            }
        }

        $languageObj->save();

        if ($returnDataHash === []) {
            return (object) [];
        }

        return json_decode(Json::encode($returnDataHash));
    }
}
