<?php

namespace app\data\controller\api;

use app\data\model\BasePostageRegion;
use hg\apidoc\annotation\Param;
use hg\apidoc\annotation\Returned;
use hg\apidoc\annotation\Title;
use think\admin\Controller;
use think\Cache;

/**
 * @Title("地区模块")
 */
class Area extends Controller
{
    /**
     * @Title("获取地区信息")
     * @Param("level",desc="1省2市3区")
     * @Param("pid",desc="上级区域ID")
     * @Returned("id",desc="地区ID")
     * @Returned("name",desc="地区名称")
     * @Returned("short",desc="地区简短名称")
     * @Returned("pinyin",desc="地区拼音")
     * @Returned("first",desc="地区首字母")
     */
    public function area(){
        $data=$this->_vali([
            'level.require'=>'级别必须',
            'pid.require'=>"上级必须",
        ]);
        $this->success(
            '',
            BasePostageRegion::where('level',$data['level'])
                ->where('pid',$data['pid'])
                ->order('pinyin')
                ->select()
        );
    }
    /**
     * @Title("获取地区信息(按字母排序)")
     * @Param("level",desc="1省2市3区")
     * @Param("hot",desc="1是否获取热门城市")
     */
    public function sort(){
        $data=$this->_vali([
            'level.require'=>'级别必须',
            'level.in:1,2,3'=>'级别必须',
        ]);
        $sortArea=$this->app->cache->remember("app_area_sort_{$data['level']}",function ()use ($data){
            $citys=BasePostageRegion::field(['id','name','first'])->where('level',$data['level'])->select();
            $a = [];
            for ($i = 65; $i < 91; $i++) {
                $one = [
                    'index' => chr($i),
                    'child' => []
                ];
                foreach ($citys as $key => &$city) {
                    if ($city['first'] == $one['index']) {
                        $one['child'][] = [
                            'title' => $city['name'],
                            'weight' => $city['id'],
                            'id' => $city['id'],
                        ];
                        unset($citys[$key]);
                    }
                }
                $a[] = $one;
            }
            return $a;
        },0);
        $info=[
            'areas'=>$sortArea,
        ];
        if(input('hot')){
            $info['hot']=BasePostageRegion::hot();
        }
        $this->success('',$info);
    }
    /**
     * @Title("地区递归三级联动")
     */
    public function tree(){
        function area(&$data,$areas,$first=false){
            foreach ($areas as $k=>$area){
                if($first){
                    if($area['pid']==0) {
                        area($area, $areas);
                        unset($area['pid']);
                        $data[] = $area;
                        unset($areas[$k]);
                    }
                }else{
                    if($data['value']==$area['pid']){
                        area($area, $areas);
                        unset($area['pid']);
                        $data['children'][]=$area;
                        unset($areas[$k]);
                    }
                }
            }
        }
        $cache=$this->app->cache;
        $fromCache=$cache->get('app_area');
        if(!$fromCache){
            $fina=[];
            $areas=BasePostageRegion::where('level','<=',3)->field('id as value,name as label,pid')->select()->toArray();
            area($fina,$areas,true);
            $fromCache=$fina;
            $cache->remember('app_area',$fina,0);
        }

        $this->success('',$fromCache);
    }
    /**
     * @Title("根据名称获取信息")
     * @Param("name",desc="城市名")
     */
    public function name(){
        $rs=null;
        $cache=$this->app->cache;
        if($name=input('name')){
            $cacheName="area_name_".$name;
            $rs=$cache->get($cacheName,null);
            if(!$rs){
                $rs=BasePostageRegion::where('name|short',$name)->find();
                $cache->set($cacheName,$rs);
            }
        }
        $this->success('',$rs);
    }
}