<?php
namespace Base\Service;

use Base\Facade\Request;

class PaymentRuleService {

    public function getRulesByIds(array $ids = null, $fields = '*')
    {
        $map = [];
        if (is_null($ids)) {
            $map['_string'] = '1=1';
        } elseif (count($ids) == 0) {
            return [];
        } else {
            $map['id'] = ['in', $ids];
        }
        $rules = M('payment_rule', 'tab_')->field($fields)->where($map)->select();
        return index_by_column('id', $rules);
    }

    public function getEffectiveTimeDisplay($rule)
    {
        $startTime = $rule['start_time'] == 0 ? null : date('Y-m-d', $rule['start_time']);
        $endTime = $rule['end_time'] == 0 ? null : date('Y-m-d', $rule['end_time']);
        if ($startTime == null &&  $endTime == null) {
            return '永久';
        }
        if ($startTime != null &&  $endTime != null) {
            return $startTime . ' 至 ' . $endTime;
        }
        if ($startTime == null &&  $endTime != null) {
            return '从前 至 ' . $endTime;
        }
        if ($startTime != null &&  $endTime == null) {
            return $startTime . ' 至 永久';
        }
    }
}