<?php
namespace Base\Service;

class DiscountService
{
    const FOREVER_TIME = 4102444800;

    public function save($params, $admin = null)
    {
        $id = $params['id'] ?? 0;
        $baseGame = M('base_game', 'tab_')->where(['id' => $params['base_game_id']])->find();
        $data = [
            'base_game_id' => $params['base_game_id'],
            'base_game_name' => $baseGame['name'],
            'start_time' => strtotime($params['start_time'] . ' 00:00:00'),
            'end_time' => empty($params['end_time']) ? self::FOREVER_TIME : strtotime($params['end_time'] . ' 23:59:59'),
            'first_rate' => $params['first_rate'],
            'second_rate' => $params['second_rate'],
            'status' => $params['status'],
        ];

        $data['update_time'] = time();
        $data['update_admin_id'] = $admin ? $admin['uid'] : 0;
        $data['update_admin_username'] = $admin ? $admin['username'] : '';

        if ($id > 0) {
            M('game_discount', 'tab_')->where(['id' => $id])->save($data);
        } else {
            $data['create_time'] = time();
            $data['create_admin_id'] = $admin ? $admin['uid'] : 0;
            $data['create_admin_username'] = $admin ? $admin['username'] : '';
            M('game_discount', 'tab_')->add($data);
        }
    }

    public function check($params)
    {
        $id = $params['id'] ?? 0;
        if (empty($params['base_game_id'])) {
            throw new \Exception('请选择游戏');
        }

        if (empty($params['start_time'])) {
            throw new \Exception('请选择生效时间');
        }

        if (empty($params['base_game_id'])) {
            throw new \Exception('请选择游戏');
        }

        $startTime = strtotime($params['start_time'] . ' 00:00:00');
        $endTime = empty($params['end_time']) ? self::FOREVER_TIME : strtotime($params['end_time'] . ' 23:59:59');
        if ($endTime < $startTime) {
            throw new \Exception('生效开始时间不能大于结束时间');
        }

        $firstRate = $params['first_rate'] ?? 0;
        $secondRate = $params['second_rate'] ?? 0;
        // /^[0-9]+(.[0-9]{1,2})?$/
        if (!preg_match('/^[0-9]+(.[0-9]{1})?$/', $firstRate)) {
            throw new \Exception('首充折扣为大于等于0的整数或者一位小数');
        }
        if (!preg_match('/^[0-9]+(.[0-9]{1})?$/', $secondRate)) {
            throw new \Exception('次充折扣为大于等于0的整数或者一位小数');
        }

        if ($id > 0) {
            $record = M('game_discount', 'tab_')->where(['id' => $id])->find();
            if ($record['end_time'] < time()) {
                throw new \Exception('生效时间已过，不可修改');
            }

            if ($record['start_time'] < time()) {
                if ($record['base_game_id'] != $params['base_game_id']) {
                    throw new \Exception('已生效不能修改游戏');
                }
                if (intval($firstRate * 10) != intval($record['first_rate'] * 10)) {
                    throw new \Exception('已生效不能修改首充折扣');
                }
                if (intval($secondRate * 10) != intval($record['second_rate'] * 10)) {
                    throw new \Exception('已生效不能修改次充折扣');
                }
            }
        }

        $map = [];
        $map['base_game_id'] = $params['base_game_id'];
        $map['_string'] = 'NOT (end_time < ' . $startTime . ' OR start_time > ' . $endTime . ')';
        if ($id > 0) {
            $map['_string'] .= ' and id<>' . $id;
        }
        $item = M('game_discount', 'tab_')->where($map)->limit(1)->find();
        if ($item) {
            throw new \Exception('该游戏在相同时间区间已存在打折规则');
        }
    }

    public function delete($id)
    {
        M('game_discount', 'tab_')->where(['id' => $id])->delete();
    }

    public function isActived($record)
    {
        if ($record['status'] == 0) {
            return false;
        }
        if ($record['start_time'] <= time() && $record['end_time'] >= time()) {
            return true;
        }
        return false;
    }
}