package com.example.building.service;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.example.building.entity.SystemConfig;
import com.example.building.mapper.SystemConfigMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDate;

@Service
public class SystemConfigService {

    @Autowired
    private SystemConfigMapper systemConfigMapper;

    /**
     * 获取顾客订单可见天数配置
     * 默认180天（半年）
     */
    public int getCustomerOrderVisibleDays() {
        LambdaQueryWrapper<SystemConfig> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(SystemConfig::getConfigKey, "customer_order_visible_days");
        SystemConfig config = systemConfigMapper.selectOne(wrapper);
        
        if (config != null && config.getConfigValue() != null) {
            try {
                return Integer.parseInt(config.getConfigValue());
            } catch (NumberFormatException e) {
                return 180;
            }
        }
        return 180; // 默认半年
    }

    /**
     * 获取顾客可见订单开始日期
     */
    public LocalDate getCustomerOrderStartDate() {
        int days = getCustomerOrderVisibleDays();
        return LocalDate.now().minusDays(days);
    }
}