<?php
namespace app\api\logic;

use app\common\model\UserModel;

class UserLogic
{
    public function register($arr)
    {
        $fillfields = ['phone', 'passwd'];
        foreach ($fillfields as $key => $value) {
            if (!isset($arr[$value]) || empty($arr[$value])) {
                return backarr(0, "参数缺少");
            }
        }
        $m_u = new UserModel();
        $phone = $arr['phone'];
        $passwd = $phone . $arr['passwd'];
        $where = ['phone' => $phone];
        $uinfo = $m_u->getInfo($where);
        if (empty($uinfo)) {
            //注册
            $arr['passwd'] = $this->createpasswd($passwd);
            $uid = $m_u->insertData($arr);
            if (empty($uid)) {
                return backarr(0, "注册失败");
            }
        } else {
            //登录
            $uid = $uinfo['id'];
            $checked = $this->checkpasswd($passwd, $uinfo['passwd']);
            if (!$checked) {
                return backarr(0, "密码错误");
            }
        }
        $result = $this->changetoken($uid, $phone);
        if (empty($result['status'])) {
            return backarr(0, $result['msg']);
        }
        $field = ['id', 'phone', 'token'];
        $where = ['id' => $uid];
        $uinfo = $m_u->getInfo($where, $field);
        return backarr($uinfo, "注册成功", $uinfo);
    }
    public function login($arr)
    {
        $fillfields = ['phone', 'passwd'];
        foreach ($fillfields as $key => $value) {
            if (!isset($arr[$value]) || empty($arr[$value])) {
                return backarr(0, "参数缺少");
            }
        }
        $m_u = new UserModel();
        $phone = $arr['phone'];
        $passwd = $phone . $arr['passwd'];
        $where = ['phone' => $phone];
        $uinfo = $m_u->getInfo($where);
        if (empty($uinfo)) {
            return backarr(0, "无用户信息");
        }
        $uid = $uinfo['id'];
        $checked = $this->checkpasswd($passwd, $uinfo['passwd']);
        if (!$checked) {
            return backarr(0, "密码错误");
        }
        $result = $this->changetoken($uid, $phone);
        if (empty($result['status'])) {
            return backarr(0, $result['msg']);
        }
        $field = ['id', 'phone', 'token'];
        $where = ['id' => $uid];
        $uinfo = $m_u->getInfo($where, $field);
        return backarr($uinfo, "登录成功", $uinfo);
    }
    private function checkpasswd($pwd, $hash)
    {
        return password_verify($pwd, $hash);
    }
    private function createpasswd($pwd)
    {
        $newpasswd = password_hash($pwd, PASSWORD_DEFAULT);
        return $newpasswd;
    }
    private function changetoken($uid, $str)
    {
        $token = $this->gettoken($str);
        $m_u = new UserModel();
        $updateData = ['token' => $token];
        $where = ['id' => $uid];
        $row = $m_u->updateinfo($where, $updateData);
        if (empty($row)) {
            return backarr(0, "修改token失败");
        }
        return backarr(1, "修改token成功");
    }
    private function gettoken($str)
    {
        $str = md5(uniqid(md5(microtime(true)), true));
        $token = sha1($str . $str);
        return $token;
    }
}