<?php

namespace App\Services;

use App\Models\AdminTranslation;
use Exception;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;

class AdminTranslationService
{
    /**
     * @var OperationLogService
     */
    private OperationLogService $logService;

    /**
     * @param OperationLogService $logService
     */
    public function __construct(OperationLogService $logService)
    {
        $this->logService = $logService;
        $this->logService->menuTitle = 'translation';
    }

    /**
     * @param array $data
     * @throws Exception
     */
    public function createModel(array $data)
    {
        try {
            DB::beginTransaction();
            DB::commit();

            $save_data = [
                'en'    => $data['en'],
                'zh_cn' => $data['zh_cn'],
                'zh_tw' => $data['zh_tw']
            ];
            if (AdminTranslation::query()->where($save_data)->exists()) {
                throw new Exception(
                    __('service.admin_translation.data_exists')
                );
            }

            $save_data['created_at'] = get_datetime();
            $model = AdminTranslation::query()->create($save_data);

            $this->logService->logCreated($model, 'translation.create');

            return $model;
        } catch (Exception $e) {
            DB::rollBack();
            throw $e;
        }
    }

    // 添加，编辑翻译
    public function saveData($cn, $en, $tw, $type_id, $type)
    {
        $save_data = [
            'en'      => $en,
            'zh_cn'   => $cn,
            'zh_tw'   => $tw,
            'type_id' => $type_id,
            'type'    => $type
        ];
        $where = [
            'type_id' => $type_id,
            'type'    => $type
        ];
        $res = AdminTranslation::query()->where($where)->first();
        if ($res) {
            if ($save_data['en'] != $res['en'] ||
                $save_data['zh_cn'] != $res['zh_cn'] ||
                $save_data['zh_tw'] != $res['zh_tw']
            ) {
                $save_data['updated_at'] = get_datetime();
                $model = AdminTranslation::query()->findOrFail($res['id']);
                $oldValues = $model->toArray();
                $model->update($save_data);
                $this->logService->logUpdated(
                    $model,
                    $oldValues,
                    'translation.update'
                );
            };
            return $res['id'];
        } else {
            $save_data['created_at'] = get_datetime();
            $model = AdminTranslation::query()->create($save_data);
            $this->logService->logCreated($model, 'translation.create');
            return $model->id;
        }
    }

    // 保存翻译
    public static function saveTranslation($cn, $en, $tw, $type_id, $type)
    {
        // 创建翻译管理
        return (new AdminTranslationService(
            new OperationLogService()
        ))->saveData($cn, $en, $tw, $type_id, $type);
    }

    //获取翻译 type: 1 车位类型、2 车位属性
    public static function getTranslation($type_id, $type)
    {
        $columns = ['en', 'zh_cn', 'zh_tw'];
        $where = [
            'type_id' => $type_id,
            'type'    => $type
        ];
        return AdminTranslation::query()->where($where)->first( $columns);
    }

    /**
     * @param array $data
     * @param int   $id
     * @throws Exception
     */
    public function updateModel(array $data, int $id)
    {
        try {
            DB::beginTransaction();
            DB::commit();

            $update_data = [
                'en'    => $data['en'],
                'zh_cn' => $data['zh_cn'],
                'zh_tw' => $data['zh_tw']
            ];

            if (AdminTranslation::query()->where($update_data)->where(
                'id',
                '<>',
                $id
            )->exists()
            ) {
                throw new Exception(
                    __('service.admin_translation.data_exists')
                );
            }

            $model = AdminTranslation::query()->findOrFail($id);
            $oldValues = $model->toArray();
            $update_data['updated_at'] = get_datetime();
            $model->update($update_data);

            $this->logService->logUpdated($model, $oldValues, 'translation.update');

            return $model;
        } catch (Exception $e) {
            DB::rollBack();
            throw $e;
        }
    }

    /**
     * @param int $id
     * @return bool
     * @throws Exception
     */
    public function deleteModel(int $id): bool
    {
        try {
            DB::beginTransaction();

            $model = AdminTranslation::query()->findOrFail($id);

            $this->logService->logDeleted($model, 'translation.delete');

            $model->delete();

            DB::commit();
            return true;
        } catch (Exception $e) {
            DB::rollBack();
            throw $e;
        }
    }
}