package com.rongwei.bscommon.system.utils;

import com.rongwei.bscommon.system.service.QHSERedisService;
import com.rongwei.rwadmincommon.system.domain.SysUserDo;
import com.rongwei.rwadmincommon.system.vo.SysUserVo;
import com.rongwei.rwcommon.base.BaseDo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.annotation.PostConstruct;
import javax.servlet.http.HttpServletRequest;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.Date;

/**
 * JXKHUtils class
 *
 * @author XH
 * @date 2024/12/02
 */
@Component
public class QHSEUtils {
    private static QHSERedisService QHSERedisService;
    @Autowired
    private QHSERedisService autoQHSERedisService;

    /**
     * 获取当前的登陆人信息
     *
     * @return
     */
    public static SysUserVo getCurrentUser() {
        // 获取当前登录人信息
        SysUserVo currUser = null;
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        if (attributes != null) {
            HttpServletRequest request = attributes.getRequest();
            if (request != null) {
                String token = request.getHeader("token");
                if (com.rongwei.rwcommon.utils.StringUtils.isNotEmpty(token)) {
                    currUser = QHSERedisService.getLoginUser(token);
                }
            }
        }
        return currUser;
    }

    public static <T extends BaseDo> void initModelGeneralParameters(T t, SysUserDo userVo) {
        if (userVo == null) {
            userVo = getCurrentUser();
        }
        t.setCreatedate(new Date());
        t.setModifydate(new Date());
        if (userVo != null) {
            t.setCreateuserid(userVo.getId());
            t.setCreateusername(userVo.getName());
            t.setModifyuserid(userVo.getId());
            t.setModifyusername(userVo.getName());
        }
        t.setDeleted("0");
    }

    public static BigDecimal CALCULATE_Y3(BigDecimal x1, BigDecimal y1, BigDecimal x2, BigDecimal y2, BigDecimal x3) {
        // 检查x1是否等于x2，以避免除以零的错误
        if (x1.compareTo(x2) == 0) {
            throw new IllegalArgumentException("x1 和 x2 不能相等，因为这将导致除以零的错误。");
        }
        // 使用两点式方程计算y3值
        return y1.add(y2.subtract(y1).multiply(x3.subtract(x1)).divide(x2.subtract(x1),4, RoundingMode.HALF_UP)).setScale(3, RoundingMode.HALF_UP);

    }

    @PostConstruct
    public void init() {

        QHSERedisService = autoQHSERedisService;
    }

    public static String getIp(HttpServletRequest request) {
        String ipAddress = request.getHeader("X-Forwarded-For");

        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getHeader("Proxy-Client-IP");
        }
        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getHeader("WL-Proxy-Client-IP");
        }
        if (ipAddress == null || ipAddress.isEmpty() || "unknown".equalsIgnoreCase(ipAddress)) {
            ipAddress = request.getRemoteAddr();
        }

        // 处理多级代理的情况（取第一个有效IP）
        if (ipAddress != null && ipAddress.contains(",")) {
            ipAddress = ipAddress.split(",")[0].trim();
        }

        return ipAddress;
    }

}