<?php

namespace app\common\logic;

use app\common\basics\Logic;
use app\common\model\DevRegion;
use app\common\model\distribution\DistributionMemberApply;
use app\common\model\shop\Shop;
use app\common\model\user\User;
use app\common\server\ConfigServer;

class CityLogic extends Logic
{
    /**
     * 根据进入方式获取应展示的城市商城
     * 未扫码进入：上海总部；扫码进入：码主人所属城市
     */
    public static function getEntryCity(array $params = []): array
    {
        if (!empty($params['invite_code'])) {
            return self::getCityByInviteCode($params['invite_code']);
        }

        if (!empty($params['user_id'])) {
            return self::getCityByUserId((int)$params['user_id']);
        }

        return self::getHeadquartersCity();
    }

    /**
     * 上海总部城市（默认商城）
     */
    public static function getHeadquartersCity(): array
    {
        $cityId = self::resolveHeadquartersCityId();
        if ($cityId <= 0) {
            return self::formatCityInfo(0, true);
        }

        return self::formatCityInfo($cityId, true);
    }

    /**
     * 根据邀请码获取码主人所属城市
     */
    public static function getCityByInviteCode(string $code): array
    {
        $user = User::where(['distribution_code' => $code, 'del' => 0])
            ->field('id,city_id')
            ->findOrEmpty();

        if ($user->isEmpty()) {
            return self::getHeadquartersCity();
        }

        $cityId = self::resolveUserCityId((int)$user['id'], (int)$user['city_id']);
        if ($cityId <= 0) {
            return self::getHeadquartersCity();
        }

        return self::formatCityInfo($cityId);
    }

    /**
     * 根据用户ID获取所属城市（分销扫码等场景）
     */
    public static function getCityByUserId(int $userId): array
    {
        $user = User::where(['id' => $userId, 'del' => 0])
            ->field('id,city_id')
            ->findOrEmpty();

        if ($user->isEmpty()) {
            return self::getHeadquartersCity();
        }

        $cityId = self::resolveUserCityId((int)$user['id'], (int)$user['city_id']);
        if ($cityId <= 0) {
            return self::getHeadquartersCity();
        }

        return self::formatCityInfo($cityId);
    }

    /**
     * 解析用户所属城市：优先用户表，其次分销申请地区
     */
    protected static function resolveUserCityId(int $userId, int $cityId = 0): int
    {
        if ($cityId > 0) {
            return $cityId;
        }

        if ($userId <= 0) {
            return 0;
        }

        return (int)DistributionMemberApply::where([
            ['user_id', '=', $userId],
            ['status', '=', 1],
        ])->order('id desc')->value('city');
    }

    /**
     * 获取用户所属城市ID，扫码绑定时继承上级地区
     */
    public static function getUserCityId(int $userId): int
    {
        if ($userId <= 0) {
            return 0;
        }

        $cityId = (int)User::where(['id' => $userId, 'del' => 0])->value('city_id');

        return self::resolveUserCityId($userId, $cityId);
    }

    protected static function formatCityInfo(int $cityId, bool $isHeadquarters = false): array
    {
        if ($cityId <= 0) {
            return [
                'id' => 0,
                'name' => '上海总部',
                'gcj02_lat' => 0,
                'gcj02_lng' => 0,
                'shop_id' => 1,
                'is_headquarters' => 1,
            ];
        }

        $city = DevRegion::where('id', $cityId)
            ->field('id,name,gcj02_lat,gcj02_lng,db09_lat,db09_lng')
            ->findOrEmpty();

        if ($city->isEmpty()) {
            return [
                'id' => 0,
                'name' => '上海总部',
                'gcj02_lat' => 0,
                'gcj02_lng' => 0,
                'shop_id' => 1,
                'is_headquarters' => 1,
            ];
        }

        $shop = Shop::where([
            ['city_id', '=', $cityId],
            ['is_run', '=', 1],
            ['is_freeze', '=', 0],
            ['del', '=', 0],
        ])->field('id')->findOrEmpty();

        return [
            'id' => (int)$city['id'],
            'name' => $city['name'],
            'gcj02_lat' => (float)($city['gcj02_lat'] ?: 0),
            'gcj02_lng' => (float)($city['gcj02_lng'] ?: 0),
            'shop_id' => $shop->isEmpty() ? 1 : (int)$shop['id'],
            'is_headquarters' => $isHeadquarters ? 1 : 0,
        ];
    }

    protected static function resolveHeadquartersCityId(): int
    {
        $cityId = (int)ConfigServer::get('shop', 'headquarters_city_id', 0);
        if ($cityId <= 0) {
            $cityId = (int)Shop::where(['id' => 1, 'del' => 0])->value('city_id');
        }
        if ($cityId <= 0) {
            $cityId = (int)DevRegion::where(['level' => 2])
                ->whereLike('name', '上海%')
                ->value('id');
        }

        return $cityId;
    }
}