<?php

namespace app\common\model;

use think\Cache;
use think\Db;

/**
 * 聚合渠道表
 * @author Administrator
 */
class ComplexChannelModel extends \think\Model
{
    protected $pk    = 'id';
    protected $table = 'nw_complex_channel';

    protected static function init()
    {
        ComplexChannelModel::afterInsert(function () {
            Cache::clear('complex_channel_cache');
        });

        ComplexChannelModel::afterUpdate(function () {
            Cache::clear('complex_channel_cache');
        });

        ComplexChannelModel::afterWrite(function () {
            Cache::clear('complex_channel_cache');
        });
    }

    /**
     * 根据条件查询渠道信息 （缓存）
     * @param string $field
     * @param array $condition
     * @param string $order 排序
     * @return mixed
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function getAllByCondition($field = 'id,name,parent_id', $condition = ['status' => 1],$order='id desc')
    {
        $prefix   = 'clearable_complex_channel_list_';
        $cacheKey = $prefix . md5(json_encode($condition) . $field.$order);
        $result   = Cache::get($cacheKey);
        if (empty($result)) {
            $list = Db::table($this->table)->field($field)->where($condition)->order($order)->select();
            if (!empty($list)) {
                foreach ($list as $v) {
                    $result[ $v['id'] ] = $v;
                }
                unset($list);
                Cache::tag('complex_channel_cache')->set($cacheKey, $result,3600 * 24);
            }
        }
        return $result;
    }


    /**
     * 获取渠道 id->name 列表
     * @return array|mixed
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function getChannleList()
    {
        $prefix   = 'clearable_complex_channel_list_data';
        $cacheKey = $prefix . md5(json_encode($prefix));
        $result   = Cache::get($cacheKey);
        if (empty($result)) {
            $list   = $this->getAllByCondition();
            $result = [];
            foreach ($list as $v) {
                $result[ $v['id'] ] = $v['name'];
            }
            unset($list);
            Cache::tag('complex_channel_cache')->set($cacheKey, $result, 3600 * 24);
        }
        unset($list);
        return $result;
    }


    /**
     * 获取所有父类渠道
     * @return array|mixed
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function getParentChannel()
    {

        $prefix   = 'clearable_complex_channel_list_parent';
        $cacheKey = $prefix . md5(json_encode($prefix));
        $result   = Cache::get($cacheKey);
        if (empty($result)) {
            $list   = $this->getAllByCondition();
            $result = [];
            foreach ($list as $v) {
                if ($v['parent_id'] == config('TOP_CHANNEL_ID')) {
                    $result[ $v['id'] ] = $v;
                }
            }
            unset($list);
            Cache::tag('complex_channel_cache')->set($cacheKey, $result, 3600 * 24);
        }
        unset($list);
        return $result;
    }
    
    
    /**
     * 获取当前渠道下的所有子渠道ID
     * @param pid：当前渠道ID
     * 
     */
    public function getChildIds($pid){
        
        $cacheKey = 'clearable_complex_channel_childIds:'.$pid;
        $result   = Cache::get($cacheKey);
        
        if (empty($result)) {
            $result = $this->getIds($pid);
            
            Cache::tag('complex_channel_cache')->set($cacheKey, $result, 3600 * 24*30);
        }
        
        if(is_array($result)){
            return array_unique($result);
        }
        else
            return $result;
        
    }
    
    
    /**
     * 获取渠道下所有父/子渠道ID
     * 
     * @param pid：多个父渠道ID集
     * @param childids：找到的子渠道集
     * 
     */
    public function getIds($pid,$childids=[]){
        
        if(!$pid || $pid<=0) return false;
        
        $ids = $this->where(['parent_id'=>['in',$pid]])->column('id');

        //未找到,返回已经找到的
        if(empty($ids)) 
            return $childids;
        
        //添加到子渠道ID集合中
        $childids = array_merge($childids,$ids);
        
        //递归查找
        return $this->getIds($ids,$childids);
    }
}