<?php

namespace backend\modules\common\controllers;

use backend\controllers\BaseController;
use common\enums\RedisKeyEnum;
use common\models\common\Region;
use common\models\user\Town;
use Yii;
use yii\filters\AccessControl;

/**
 * 地区管理
 *
 * @Author bing
 * @DateTime 2021-08-10 17:29:36
 * @copyright: Copyright (c) 2020 广东七件事集团
 */
class RegionController extends BaseController
{
    public function behaviors()
    {
        return [
            'access' => [
                'class' => AccessControl::class,
                'rules' => [
                    [
                        'actions' => ['list', 'get-district-list', 'get-town-list'],
                        'allow' => true,
                    ],
                ],
            ],
        ];
    }

    public function actionList()
    {
        if (Yii::$app->request->isAjax) {
            $level = Yii::$app->request->get('level',2);
            $mall_id = Yii::$app->request->get('mall_id',0);
            $is_area_limit_town = Yii::$app->request->get('is_area_limit_town',0);
            if (!empty($mall_id) && empty($is_area_limit_town)) {
                $is_area_limit_town = \Yii::$app->services->setting->mall->get($mall_id, 'area.is_area_limit_town');
            }
            //  如果没有启用4级但是需要的是第四级，那么就将其修改为3级
            if (empty($is_area_limit_town) && $level == 4) $level = 3;

            //  暂时去掉缓存，因为新增了一些行政区，需要重新加载最新的数据
//            $list =  Yii::$app->cache->get(RedisKeyEnum::REGION_TREE . $level);
            if(empty($list)){
                $where = [
                    ['<=','level',$level],
                    ['>','level',0]
                ];
                $regions = Region::lists(['where'=>$where,'select'=>'id,name,parent_id,level','limit'=>10000]);
                if ($level == 4) {
                    $towns = Town::lists([
                        'select'=> 'id, name, district_id',
                        'order' => 'id asc'
                    ]);
                    $t_towns = [];
                    foreach ($towns as &$town) {
                        $town['level'] = 4;
                        $town['parent_id'] = $town['district_id'];
                        $town['id'] = "_{$town['id']}"; //  街道表与地区表数据ID存在重复，所以再ID前面加一个下划线
                        unset($town['district_id']);
                        $t_towns[$town['parent_id']][] = $town;
                    }
                }
                $list = Region::getTreeRegion($regions);
                if (!empty($t_towns)) {
                    foreach ($list as $k1 => $v1) {
                        if (!empty($v1['children'])) {
                            foreach ($v1['children'] as $k2 => $v2) {
                                if (!empty($v2['children'])) {
                                    foreach ($v2['children'] as $k3 => $v3) {
                                        if (!empty($list[$k1]['children'][$k2]['children'])) {
                                            $list[$k1]['children'][$k2]['children'][$k3]['children'] = $t_towns[$v3['id']] ?? [
                                                [
                                                    'id'    => "__{$v3['id']}",
                                                    'name'  => $v3['name'],
                                                    'level' => 4,
                                                    'parent_id' => $v3['id'],
                                                ]
                                            ];
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
                Yii::$app->cache->set(RedisKeyEnum::REGION_TREE . $level,$list);
            }
            return $this->success('ok',compact('list'));
        }
    }


    public function actionGetDistrictList()
    {
        $params = \Yii::$app->request->get();
        $res = Yii::$app->services->validate->validate($params, [
            [['level'], 'required'],
            [['level'], 'integer'],
        ]);
        if ($res === false) return $this->error(Yii::$app->services->validate->getErrorMessage());
        /**
         * 1省级，2市级，3区，4镇级
         */
        $level_arr = [1];
        if ($params['level'] == 2) $level_arr[] = 2;
        if (in_array($params['level'], [3, 4])) {
            $level_arr[] = 2;
            $level_arr[] = 3;
        }
        $where[] = ['level' => $level_arr];
        $list = Region::getRegionList($where, 'id,name,parent_id,level');
        if (in_array($params['level'], [2, 3, 4])) {
            $tree = [];
            $level_arr = [];
            foreach ($list as $k => $item) {
                if ($item['level'] == 1) $tree[] = $item;
                if (in_array($item['level'], [2, 3])) $level_arr[$item['parent_id']][] = $item;
            }
            foreach ($tree as &$province) {
                if (isset($level_arr[$province['id']])) {
                    foreach ($level_arr[$province['id']] as &$city) {
                        if (isset($level_arr[$city['id']])) $city['list'] = $level_arr[$city['id']];
                    }
                    $province['list'] = $level_arr[$province['id']];
                }
            }
            return $this->success('ok',$tree);
        } else {
            return $this->success('ok',$list);
        }
    }

    public function actionGetTownList()
    {
        $params = \Yii::$app->request->get();
        $res = Yii::$app->services->validate->validate($params, [
            [['district_id'], 'required'],
            [['district_id'], 'integer'],
        ]);
        if ($res === false) return $this->error(Yii::$app->services->validate->getErrorMessage());
        $district_id = $params['district_id'];
        $list = Town::lists(['where' => [['district_id' => $district_id]], 'select' => 'id,district_id,name']);
        return $this->success('操作成功', ['list' => $list]);
    }
}