<?php

namespace addons\Community\common\service;

use addons\Community\common\enums\CommunityEnum;
use addons\Community\common\models\CommunityHead;
use common\enums\StatusEnum;
use common\models\common\Region;
use services\common\BaseService;
use Yii;

/**
 * 社区服务类
 * CommunityService class
 */
class CommunityService extends BaseService
{
    /**
     * 获取社区团购区域列表
     *
     * @param integer $level
     * @return array
     */
    public function getRegionList(int $level)
    {
        $list = Yii::$app->cache->get(CommunityEnum::REGION_TREE . $level);
        if (empty($list)) {
            $where = [
                ['<=', 'level', $level],
                ['>', 'level', 0],

            ];
            $regions = Region::lists(['where' => $where, 'select' => 'id,name,parent_id,level', 'limit' => 10000]);
            $list = Region::getTreeRegion($regions);
            Yii::$app->cache->set(CommunityEnum::REGION_TREE . $level, $list);
        }
        $setting_service = new SettingService();
        $area = $setting_service->getFieldSetting($this->mall_id, 'area', true);
        $area = $area ? json_decode($area, true) : $area;
        $list = $this->filterRegions($area, $list);

        return $this->handleCommunityData($this->mall_id, $list);
    }

    /**
     * @Description: 将自提点数据放入地区数据
     * @Author: zsan
     * @DateTime 2023-02-09 14:50:16
     * @param  integer $mall_id
     * @param  array $regions
     * @return mixed
     */
    protected function handleCommunityData($mall_id, $regions)
    {
        $params = [
            'where' => [
                ['mall_id' => $mall_id],
                ['check_status' => CommunityEnum::CHECK_ADOPT],
                ['status' => [StatusEnum::ENABLED]]
            ],
            'select' => 'id, name, province_id, city_id, district_id',
            'index' => 'id'
        ];
        $community_head_list = CommunityHead::lists($params, true);
        $district_arr = [];
        foreach ($community_head_list as $v) {
            if (!isset($district_arr[$v['district_id']])) $district_arr[$v['district_id']] = [];
            $district_arr[$v['district_id']][] = [
                'id' => $v['id'],
                'name' => $v['name'],
                'level' => 4
            ];
        }
        foreach ($regions as &$region) {
            if (!isset($region['children'])) continue;
            if (count($district_arr) <= 0) break;
            foreach ($region['children'] as &$city) {
                if (!isset($city['children'])) continue;
                if (count($district_arr) <= 0) break 2;
                foreach ($city['children'] as &$district) {
                    if (!array_key_exists($district['id'], $district_arr)) continue;
                    if (count($district_arr) <= 0) break 3;
                    $district['children'] = $district_arr[$district['id']];
                    unset($district_arr[$district['id']]);
                }
                unset($district);
            }
            unset($city);
        }
        unset($region);
        return $regions;
    }

    protected function filterRegions($area, $regions)
    {
        foreach ($regions as $k => $v) {
            // 过滤省份 - 再没有全选下级的情况下那么省份ID不会被存储
            // if (!in_array($v['id'], $area)) {
            //     unset($regions[$k]);
            //     continue;
            // }
            $is_unset_province = true;
            if (!isset($v['children'])) continue;

            foreach ($v['children'] as $m => $n) {
                // 过滤城市 - 在没有全选的情况下 是不会保存城市的
                // if (!in_array($n['id'], $area)) {
                //     unset($v['children'][$m]);
                //     continue;
                // }

                $is_unset_city = true;

                if (!isset($n['children'])) continue;

                foreach ($n['children'] as $a => $b) {
                    // 过滤区
                    if (!in_array($b['id'], $area)) {
                        unset($regions[$k]['children'][$m]['children'][$a]);
                    } else {
                        $is_unset_city = false;
                        $is_unset_province = false;
                    }
                }
                if ($is_unset_city) {
                    unset($regions[$k]['children'][$m]);
                } else {
                    $regions[$k]['children'][$m]['children'] = array_values($regions[$k]['children'][$m]['children']);
                }
            }
            if ($is_unset_province) {
                unset($regions[$k]);
            } else {
                $regions[$k]['children'] = array_values($regions[$k]['children']);
            }
        }
        return array_values($regions);
    }
}