package com.ruoyi.common.utils;

import cn.hutool.core.util.ObjectUtil;
import com.ruoyi.common.constant.HttpStatus;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.exception.ServiceException;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

/**
 * 安全服务工具类
 *
 * @author ruoyi
 */
public class SecurityUtils {
    private static final ThreadLocal<String> HOLDER_TENANT_ID = new ThreadLocal<>();

    /**
     * 用户ID
     **/
    public static Long getUserId() {
        try {
            return getLoginUser().getUserId();
        } catch (Exception e) {
            throw new ServiceException("获取用户ID异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取公司ID
     **/
    public static Long getCompanyId() {
        try {
            return getLoginUser().getUser().getCompanyId();
        } catch (Exception e) {
            throw new ServiceException("获取用户归属公司ID异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取关联公司列表
     **/
    public static List<Long> getCompanyIds() {
        return Arrays.asList(getCompanyId());
    }

    public static List<Long> getUserCompanyIds() {
        try {
            SysUser user = getLoginUser().getUser();

            List<Long> companySetArr;

            //处理关联归属公司
            String companySet = user.getCompanySet();
            if (ObjectUtil.isEmpty(companySet)) {
                companySetArr = new ArrayList<>();
            } else {
                companySetArr = Arrays.asList(companySet.split(","))
                        .stream().map(s -> Long.parseLong(s.trim())).collect(Collectors.toList());
            }
            companySetArr.add(user.getCompanyId());//添加当前用户公司

            return companySetArr;
        } catch (Exception e) {
            throw new ServiceException("获取用户关联公司列表异常");
        }
    }

    /**
     * 获取部门ID
     **/
    public static Long getDeptId() {
        try {
            return getLoginUser().getDeptId();
        } catch (Exception e) {
            throw new ServiceException("获取部门ID异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取用户账户
     **/
    public static String getUsername() {
        try {
            return getLoginUser().getUsername();
        } catch (Exception e) {
            throw new ServiceException("获取用户账户异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取租户id
     **/
    public static String getTenantId() {
        try {
            String tenantId = HOLDER_TENANT_ID.get();
            if (ObjectUtil.isNotEmpty(tenantId)) {
                return tenantId;
            }
            return getLoginUser().getUser().getTenantId();
        } catch (Exception e) {
            throw new ServiceException("获取租户id异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 临时设置租户Id（只在当前线程有效）
     */
    public static void setTenantId(String tenantId) {
        HOLDER_TENANT_ID.set(tenantId);
    }

    /**
     * 清除临时设置的租户Id
     */
    public static void clearTenantId() {
        HOLDER_TENANT_ID.remove();
    }

    /**
     * 获取用户
     **/
    public static LoginUser getLoginUser() {
        try {
            return (LoginUser) getAuthentication().getPrincipal();
        } catch (Exception e) {
            throw new ServiceException("获取用户信息异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取Authentication
     */
    public static Authentication getAuthentication() {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    /**
     * 生成BCryptPasswordEncoder密码
     *
     * @param password 密码
     * @return 加密字符串
     */
    public static String encryptPassword(String password) {
//        //密码强度校验
//        Pattern p = Pattern.compile("^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d)(?!.*([a-zA-Z0-9])\\1{2}).{8,16}$");
//        Matcher m = p.matcher(password);
//        if(!m.find()){
//            throw new ServiceException("密码需要包含 非连续的 大写英文字母 小写英文字母 数字");
//        }
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.encode(password);
    }

    /**
     * 判断密码是否相同
     *
     * @param rawPassword     真实密码
     * @param encodedPassword 加密后字符
     * @return 结果
     */
    public static boolean matchesPassword(String rawPassword, String encodedPassword) {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.matches(rawPassword, encodedPassword);
    }

    /**
     * 是否为管理员
     *
     * @param userId 用户ID
     * @return 结果
     */
    public static boolean isAdmin(Long userId) {
        return userId != null && 1L == userId;
    }

}