<?php


namespace app\models\tree;


use app\models\user\User;
use crmeb\basic\BaseModel;
use crmeb\traits\ModelTrait;
use think\db\exception\DataNotFoundException;
use think\db\exception\DbException;
use think\db\exception\ModelNotFoundException;

class TreeRecommend extends BaseModel
{
    /**
     * 数据表主键
     * @var string
     */
    protected $pk = 'id';

    /**
     * 模型名称
     * @var string
     */
    protected $name = 'tree_recommend';

    use ModelTrait;

    /**
     * 排点
     * @param int $uid
     * @param int $spread_uid
     * @return array|bool|int[]
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     */
    public static function getTreePoint(int $spread_uid = 0)
    {
        if (!self::count()) {
            return [0, 1];//父节点，线路
        }
        $parent_last_point = self::where('uid', $spread_uid)->order('add_time', 'desc')->find();
        if ($spread_uid == 0) {
            $parent_last_point = self::order('add_time', 'asc')->find();
        }
        while (!$parent_last_point) {
            $spread_uid = User::where('uid', $spread_uid)->value('spread_uid');
            if (!$spread_uid)
                $parent_last_point = self::order('add_time', 'asc')->find();
            else
                $parent_last_point = self::where('uid', $spread_uid)->order('add_time', 'desc')->find();
        }
        $way = 1;
        while (1) {
            //看线
            $res = self::where('way', $way)->where('parent_id', $parent_last_point['id'])->find();
            if ($res) {
                for ($i = 0; ; $i++) {
                    if ($i == 11) {
//                        $spreads = User::where('spread_uid', $parent_last_point['uid'])->column('uid');
//                        if (count(self::where('uid', 'in', $spreads)->group('uid')->field('uid,COUNT(uid)')->select()) >= $way) {
                        break;
//                        }
                    }
                    $id = $res['id'];
                    $res = self::where('way', 1)->where('parent_id', $id)->find();
                    if (!$res) {
                        return [$id, 1];
                    }
                }
                $way++;
            } else {
                return [$parent_last_point['id'], $way];
            }
        }
    }

    /**
     * 进场
     * @param int $uid
     * @param int $spread_uid
     * @return bool
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     */
    public static function insertTree(int $uid, int $spread_uid = 0): bool
    {
        $res = self::getTreePoint($spread_uid);
        if (!$res) return self::setErrorInfo(self::getErrorInfo());
        list($tree_leader, $way) = $res;
        self::beginTrans();
        try {
            $res = self::create([
                'uid' => $uid,
                'parent_id' => $tree_leader,
                'way' => $way,
                'add_time' => time(),
            ]);

            $res = $res && self::sendToUper($tree_leader);

            self::checkTrans($res);
            if ($res) {
                return true;
            } else {
                return self::setErrorInfo('加入失败');
            }
        } catch (\Exception $e) {
            self::rollbackTrans();
            return self::setErrorInfo($e->getMessage());
        }
    }

    /**
     * 发奖
     * @param int $point
     * @return bool
     * @throws DataNotFoundException
     * @throws DbException
     * @throws ModelNotFoundException
     */
    public static function sendToUper(int $point): bool
    {
        $info = self::where('id', $point)->find();
        $res = true;
        $i = 0;
        while ($info && $i < 12) {
            $info->get += 130;
            $res = $res && $info->save();
            $info = self::where('id', $info['parent_id'])->find();
            $i++;
        }
        return $res;
    }
}