<?php

namespace App\Services;

use App\Models\ParkingLicensePlate;
use App\Models\ParkingSpaceType;
use Exception;
use Illuminate\Support\Facades\DB;

class ParkingLicensePlateService
{

    /**
     * @var OperationLogService
     */
    private OperationLogService $logService;

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

    /**
     * 创建车牌号码
     * @param array $data
     * @throws Exception
     */
    public function createModel(array $data)
    {
        try {
            DB::beginTransaction();
            $model = $this->createData($data);
            DB::commit();
            return $model;
        } catch (Exception $e) {
            DB::rollBack();
            throw $e;
        }
    }

    /**
     * @param $data
     * @throws Exception
     */
    public function createData($data)
    {
        $license = ParkingLicensePlate::query()->whereRaw(
            'BINARY `number` = ?',
            [$data['number']]
        )->first();
        if ($license && $license['space_type_id']) {
            throw new Exception(__('service.license_plate.number_exists'));
        }
        if ($license) {
            return $this->updateData(
                $license['id'],
                $data['number'],
                $data['space_type_id']
            );
        } else {
            return $this->createNumber($data['number'], $data['space_type_id']);
        }
    }

    public function createNumber($number, $space_type_id = 0)
    {
        $model = ParkingLicensePlate::query()->create([
            'number'        => $number,
            'space_type_id' => $space_type_id,
            'created_at'    => get_datetime()
        ]);
        $this->logService->logCreated($model, 'license_plate.create');
        return $model;
    }

    public function saveNumber($number, $space_type_id = 0)
    {
        $id = ParkingLicensePlate::getValueId($number);
        if (!$id) {
            $model = $this->createNumber($number, $space_type_id);
            $id = $model->id;
        }
        return $id;
    }

    public function updateData($id, $number, $space_type_id)
    {
        $update = [
            'number'        => $number,
            'space_type_id' => $space_type_id,
            'updated_at'    => date("Y-m-d H:i:s", time())
        ];
        $model = ParkingLicensePlate::query()->findOrFail($id);
        $oldValues = $model->toArray();
        $model->update($update);
        $this->logService->logUpdated($model, $oldValues, 'license_plate.update');
        return $model;
    }

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

            // 验证
            $existsWhere = [
                ['id', '<>', $id]
            ];
            if (ParkingLicensePlate::query()->where($existsWhere)->whereRaw(
                'BINARY `number` = ?',
                [$data['number']]
            )->exists()) {
                throw new Exception(__('service.license_plate.number_exists'));
            }

            // 更新
            $model = ParkingLicensePlate::query()->findOrFail($id);
            $oldValues = $model->toArray();

            $model->update([
                'number'     => $data['number'],
                'updated_at' => get_datetime()
            ]);

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

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

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

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

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

            $model->delete();

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

    public function clearModel($space_type_id): bool
    {
        try {
            DB::beginTransaction();
            $oldLicensePlate = ParkingLicensePlate::query()->where(
                'space_type_id',
                $space_type_id
            )
                ->select()->get()->toArray();
            if (empty($oldLicensePlate)) {
                throw new Exception(__('service.license_plate.not_clear'));
            }
            $this->logService->logDeletedData(
                new ParkingLicensePlate(),
                'license_plate.delete',
                $oldLicensePlate
            );

            ParkingLicensePlate::query()->where('space_type_id', $space_type_id)
                ->delete();

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

    public function createLicenseId($number, $space_type_id = 0)
    {
        if (strlen($number) > 20) {
            return 0;
        }
        $license_id = ParkingLicensePlate::getValueId($number);
        if (!$license_id) {
            if (!$space_type_id) {
                $space_type = ParkingSpaceType::getDefaultData();
                $space_type_id = $space_type['id'] ?? 0;
            }
            $licenseModel = $this->createData([
                'number' => $number,
                'space_type_id' => $space_type_id
            ]);
            $license_id = $licenseModel->id;
        }
        return $license_id;
    }

    // 验证车牌格式
    public function validateLicensePlate($license_plate): string
    {
        $plate = str_replace(' ', '', $license_plate);

        // 2. 根据车牌类型选择正则
        if ($this->isMainlandChinaPlate($plate)) {
            // 中国大陆车牌校验（禁止 I、O）
            $pattern
                = '/^[\x{4e00}-\x{9fa5}][A-Z](?:[A-HJ-NP-Z0-9]{6}|(?:[DF][A-HJ-NP-Z0-9][0-9]{5}|[0-9]{6}[DF]))$/u';
            if (!preg_match($pattern, $plate)) {
                return __validation('parking_space.zh_plate');
            }
        } elseif ($this->isHongKongPlate($plate)) {
            // 中国香港车牌校验（禁止 I、O、Q）
            $pattern = '/^[A-HJ-NPR-Z0-9]{1,8}$/';
            if (!preg_match($pattern, $plate)) {
                return __validation('parking_space.hk_plate');
            }
        } else {
            return __validation('parking_space.error_plate');
        }
        return '';
    }

    private function isMainlandChinaPlate(string $plate): bool
    {
        // 长度校验：普通车牌7位，新能源车牌8位[reference:12][reference:13]
        $length = mb_strlen($plate);
        if (!in_array($length, [7, 8])) {
            return false;
        }

        // 基础格式校验：首字为汉字，第二位为大写字母
        if (!preg_match('/^[\x{4e00}-\x{9fa5}][A-Z]/u', $plate)) {
            return false;
        }

        return true;
    }

    private function isHongKongPlate(string $plate): bool
    {
        // 长度校验：1-8位
        $length = strlen($plate);
        if ($length < 1 || $length > 8) {
            return false;
        }

        // 仅包含字母和数字
        return ctype_alnum($plate);
    }
}