<?php

namespace App\Services;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\File;
use RecursiveDirectoryIterator;
use RecursiveIteratorIterator;

class LanguageService
{

    public function getAddData(object $request, object $language): array
    {
        $languageArray = [];
        $codes = [];
        foreach (json_decode($language['value'], true) as $key => $data) {
            if ($data['code'] != $request['code']) {
                if (!array_key_exists('default', $data)) {
                    $default = array('default' => $data['code'] == 'en');
                    $data = array_merge($data, $default);
                }
                $languageArray[] = $data;
                $codes[] = $data['code'];
            }
        }
        $codes[] = $request['code'];

        if (!file_exists(base_path('resources/lang/' . $request['code']))) {
            mkdir(base_path('resources/lang/' . $request['code']), 0777, true);
        }

        $messagesNewFile = fopen(base_path('resources/lang/' . $request['code'] . '/' . 'new-messages.php'), "w") or die("Unable to open file!");
        $messagesFile = fopen(base_path('resources/lang/' . $request['code'] . '/' . 'messages.php'), "w") or die("Unable to open file!");
        $messagesFromDefaultLanguage = file_get_contents(base_path('resources/lang/en/messages.php'));

        fwrite($messagesNewFile, $messagesFromDefaultLanguage);
        $messagesFileContents = "<?php\n\nreturn [];\n";
        file_put_contents(base_path('resources/lang/' . $request['code'] . '/messages.php'), $messagesFileContents);

        $translatedMessagesArray = include(base_path('resources/lang/en/messages.php'));
        $newMessagesArray = include(base_path('resources/lang/en/new-messages.php'));
        $allMessages = array_merge($translatedMessagesArray, $newMessagesArray);
        $dataFiltered = [];
        foreach ($allMessages as $key => $data) {
            $dataFiltered[removeSpecialCharacters(text: $key)] = $data;
        }
        $string = "<?php return " . var_export($dataFiltered, true) . ";";
        file_put_contents(base_path('resources/lang/' . $request['code'] . '/new-messages.php'), $string);

        $languageValue = json_decode($language['value'], true);
        $languageCount = count($languageValue);
        $id = $languageValue[$languageCount - 1]['id'] + 1;

        $languageArray[] = [
            'id' => $id,
            'name' => $request['name'],
            'code' => $request['code'],
            'direction' => $request['direction'],
            'status' => 0,
            'default' => false,
        ];
        session()->put('language', $languageArray);
        return [
            'languages' => $languageArray,
            'codes' => $codes,
        ];
    }

    public function getStatusData(object $request, object $language): array
    {
        $languageArray = [];
        foreach (json_decode($language['value'], true) as $key => $data) {
            if ($data['code'] == $request['code']) {
                $lang = [
                    'id' => $data['id'],
                    'name' => $data['name'],
                    'direction' => $data['direction'] ?? 'ltr',
                    'code' => $data['code'],
                    'status' => $data['status'] == 1 ? 0 : 1,
                    'default' => (array_key_exists('default', $data) ? $data['default'] : $data['code'] == 'en'),
                ];
            } else {
                $lang = [
                    'id' => $data['id'],
                    'name' => $data['name'],
                    'direction' => $data['direction'] ?? 'ltr',
                    'code' => $data['code'],
                    'status' => $data['status'],
                    'default' => (array_key_exists('default', $data) ? $data['default'] : $data['code'] == 'en'),
                ];
            }
            $languageArray[] = $lang;
        }

        return $languageArray;
    }

    public function getDefaultData(object $request, object $language): array
    {
        $languageArray = [];
        foreach (json_decode($language['value'], true) as $key => $data) {
            if ($data['code'] == $request['code']) {
                $lang = [
                    'id' => $data['id'],
                    'name' => $data['name'],
                    'direction' => $data['direction'] ?? 'ltr',
                    'code' => $data['code'],
                    'status' => 1,
                    'default' => true,
                ];
            } else {
                $lang = [
                    'id' => $data['id'],
                    'name' => $data['name'],
                    'direction' => $data['direction'] ?? 'ltr',
                    'code' => $data['code'],
                    'status' => $data['status'],
                    'default' => false,
                ];
            }
            $languageArray[] = $lang;
        }
        return $languageArray;
    }


    public function getUpdateData(object $request, object $language): array
    {
        $languageArray = [];
        foreach (json_decode($language['value'], true) as $key => $data) {
            if ($data['code'] == $request['code']) {
                $lang = [
                    'id' => $data['id'],
                    'name' => $request['name'],
                    'direction' => $request['direction'] ?? 'ltr',
                    'code' => $data['code'],
                    'status' => 0,
                    'default' => (array_key_exists('default', $data) ? $data['default'] : (($data['code'] == 'en') ? true : false)),
                ];
            } else {
                $lang = [
                    'id' => $data['id'],
                    'name' => $data['name'],
                    'direction' => $data['direction'] ?? 'ltr',
                    'code' => $data['code'],
                    'status' => $data['status'],
                    'default' => (array_key_exists('default', $data) ? $data['default'] : (($data['code'] == 'en') ? true : false)),
                ];
            }
            $languageArray[] = $lang;
        }
        session()->put('language', $languageArray);
        return $languageArray;
    }

    public function getLangDelete(object $language, string $code): array
    {
        $del_default = false;
        foreach (json_decode($language['value'], true) as $key => $data) {
            if ($data['code'] == $code && array_key_exists('default', $data) && $data['default']) {
                $del_default = true;
            }
        }

        $languageArray = [];
        foreach (json_decode($language['value'], true) as $key => $data) {
            if ($data['code'] != $code) {
                $lang_data = [
                    'id' => $data['id'],
                    'name' => $data['name'],
                    'direction' => $data['direction'] ?? 'ltr',
                    'code' => $data['code'],
                    'status' => ($del_default && $data['code'] == 'en') ? 1 : $data['status'],
                    'default' => ($del_default && $data['code'] == 'en') ? true : (array_key_exists('default', $data) ? $data['default'] : $data['code'] == 'en'),
                ];
                $languageArray[] = $lang_data;
            }
        }

        $dir = base_path('resources/lang/' . $code);
        if (File::isDirectory($dir)) {
            $it = new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::SKIP_DOTS);
            $files = new RecursiveIteratorIterator($it, RecursiveIteratorIterator::CHILD_FIRST);
            foreach ($files as $file) {
                if ($file->isDir()) {
                    rmdir($file->getRealPath());
                } else {
                    unlink($file->getRealPath());
                }
            }
            rmdir($dir);
        }

        return $languageArray;

    }

    public function getTranslateList(string $language): array
    {
        $data = [];
        $path = base_path('resources/lang/' . $language . '/messages.php');
        if (File::exists($path)) {
            $newMessagesData = include(base_path('resources/lang/' . $language . '/new-messages.php'));
            $oldMessagesData = include(base_path('resources/lang/' . $language . '/messages.php'));
            ksort($newMessagesData);
            ksort($oldMessagesData);

            $index = 1;
            foreach ($newMessagesData as $key => $value) {
                $data[] = [
                    'index' => $index++,
                    'key' => $key,
                    'value' => $value,
                    'encode' => !empty($key) ? base64_encode($key) : '',
                ];
            };

            foreach ($oldMessagesData as $key => $value) {
                $data[] = [
                    'index' => $index++,
                    'key' => $key,
                    'value' => $value,
                    'encode' => !empty($key) ? base64_encode($key) : '',
                ];
            };
        }
        return $data;
    }

    public function getAllMessagesTranslateProcess(string $language, int $count = 999999999): array
    {
        $newMessagesArray = include(base_path('resources/lang/' . $language . '/new-messages.php'));
        $translatedMessagesArray = include(base_path('resources/lang/' . $language . '/messages.php'));
        $response = [
            'status' => 0,
            'message' => translate("Cannot_translate_now"),
            'due_message' => count($newMessagesArray),
        ];

        $translateCountSuccess = 0;
        $translateCount = 0;
        if ($newMessagesArray) {
            if (count($newMessagesArray) <= 0) {
                $response = ['status' => 1, 'message' => translate("All_Messages_are_translated"), 'translateCountSuccess' => $translateCountSuccess];
            }
            foreach ($newMessagesArray as $key => $value) {
                if ($translateCount < $count) {
                    $langCode = getLanguageCode($language);
                    $translated = autoTranslator($key, 'en', $langCode);
                    $translatedMessagesArray[$key] = removeSpecialCharacters($translated);
                    $translatedKey = $key;
                    $translateCountSuccess++;

                    $messagesFileContents = "<?php\n\nreturn [\n";
                    foreach ($translatedMessagesArray as $k => $tmaValue) {
                        $messagesFileContents .= "\t\"" . $k . "\" => \"" . $tmaValue . "\",\n";
                    }
                    $messagesFileContents .= "];\n";
                    file_put_contents(base_path('resources/lang/' . $language . '/messages.php'), $messagesFileContents);

                    $sourcePath = base_path('resources/lang/' . $language . '/new-messages.php');
                    $targetPath = base_path('resources/lang/' . $language . '/new-messages.php');
                    self::getAddTranslateNewKey($sourcePath, $targetPath, $translatedKey);
                    $translateCount++;
                    $response = [
                        'status' => 1,
                        'message' => translate("Translate_Successful"),
                        'due_message' => count(include(base_path('resources/lang/' . $language . '/new-messages.php'))),
                        'translateCountSuccess' => $translateCountSuccess
                    ];
                }
            }
        } else {
            $response = [
                'status' => 1,
                'message' => translate("All_Messages_are_translated"),
                'due_message' => count(include(base_path('resources/lang/' . $language . '/new-messages.php'))),
                'translateCountSuccess' => $translateCountSuccess
            ];
        }

        return $response;
    }

    function getAddTranslateNewKey($sourcePath, $targetPath, $translatedKey): void
    {
        $getNewMessagesArray = include($sourcePath);
        $remainingMessagesFileContents = "<?php\n\nreturn [\n";
        foreach ($getNewMessagesArray as $newMsgKey => $newMsgValue) {
            if ($newMsgKey != $translatedKey) {
                $remainingMessagesFileContents .= "\t\"" . $newMsgKey . "\" => \"" . $newMsgValue . "\",\n";
            }
        }
        $remainingMessagesFileContents .= "];\n";
        file_put_contents($targetPath, $remainingMessagesFileContents);
    }


}