package com.gear.admin.controller.swx;

import java.math.BigDecimal;
import java.sql.Date;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletResponse;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.gear.admin.vo.swx.IdentificationVo;
import com.gear.admin.vo.swx.LoanRecordVo;
import com.gear.common.builder.WhereBuilder;
import com.gear.common.constant.SwxConstons;
import com.gear.common.exception.CustomerException;
import com.gear.common.vo.Result;
import com.gear.swx.domain.*;
import com.gear.swx.service.ISwxMoneyLogService;
import com.gear.swx.service.ISwxSettingsService;
import com.gear.swx.service.ISwxUserService;
import io.jsonwebtoken.lang.Collections;
import org.apache.logging.log4j.util.Strings;
import org.springframework.beans.BeanUtils;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;
import com.gear.common.annotation.Log;
import com.gear.common.core.controller.BaseController;
import com.gear.common.enums.BusinessType;
import com.gear.swx.service.ISwxLoanRecordService;
import com.gear.common.utils.poi.ExcelUtil;

/**
 * 贷款记录Controller
 * 
 * @author czx
 * @date 2023-11-18
 */
@RestController
@RequestMapping("/swx/loanRecord")
public class SwxLoanRecordController extends BaseController
{
    @Autowired
    private ISwxLoanRecordService swxLoanRecordService;

    @Autowired
    private ISwxUserService swxUserService;

    @Autowired
    private ISwxMoneyLogService swxMoneyLogService;

    @Autowired
    private ISwxSettingsService swxSettingsService;
    /**
     * 查询贷款记录列表
     */
    @PreAuthorize("@ss.hasPermi('swx:loanRecord:list')")
    @GetMapping("/list")
    public Result<IPage<LoanRecordVo>> list(LoanRecordVo swxLoanRecord,
                                            @RequestParam(name="pageNo", defaultValue="1") Integer pageNo,
                                            @RequestParam(name="pageSize", defaultValue="10") Integer pageSize){
        QueryWrapper<SwxLoanRecord> queryWrapper = new QueryWrapper<>();
        if(!Strings.isEmpty(swxLoanRecord.getPhone()) || !Strings.isEmpty(swxLoanRecord.getUserName())){
            QueryWrapper<SwxUser> userQueryWrapper = new QueryWrapper<>();
            if(!Strings.isEmpty(swxLoanRecord.getUserName())){
                userQueryWrapper.lambda().like(SwxUser::getUserName,swxLoanRecord.getUserName());
            }
            if(!Strings.isEmpty(swxLoanRecord.getPhone())){
                userQueryWrapper.lambda().like(SwxUser::getPhone,swxLoanRecord.getPhone());
            }

            List<SwxUser> list = swxUserService.list(userQueryWrapper);
            List<String> ids = new ArrayList<>();
            if(!Collections.isEmpty(list)){
                for (SwxUser item : list){
                    ids.add(item.getId());
                }
            }else{
                ids.add("");
            }
            queryWrapper.lambda().in(SwxLoanRecord::getUserId,ids);
        }
        if(swxLoanRecord.getStatus() != null){
            queryWrapper.lambda().eq(SwxLoanRecord::getStatus,swxLoanRecord.getStatus());
        }
        Page<SwxLoanRecord> page = new Page<SwxLoanRecord>(pageNo, pageSize);
        queryWrapper.lambda().orderByDesc(SwxLoanRecord::getCreateTime);
        IPage<SwxLoanRecord> pageList = swxLoanRecordService.page(page, queryWrapper);
        IPage<LoanRecordVo> result = new Page<>();
        List<LoanRecordVo> records = new ArrayList<>();
        for(SwxLoanRecord item : pageList.getRecords()){
            LoanRecordVo vo = new LoanRecordVo();
            BeanUtils.copyProperties(item,vo);
            SwxUser swxUser = swxUserService.getById(item.getUserId());
            if(swxUser != null){
                vo.setUserName(swxUser.getUserName());
                vo.setPhone(swxUser.getPhone());
            }
            records.add(vo);
        }
        result.setRecords(records);
        result.setCurrent(pageList.getCurrent());
        result.setPages(pageList.getPages());
        result.setSize(pageList.getSize());
        result.setTotal(pageList.getTotal());
        return Result.OK(result);
    }

    /**
     * 导出贷款记录列表
     */
    @PreAuthorize("@ss.hasPermi('swx:loanRecord:export')")
    @Log(title = "贷款记录", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    public void export(HttpServletResponse response, SwxLoanRecord swxLoanRecord){
        QueryWrapper<SwxLoanRecord> queryWrapper = WhereBuilder.build(swxLoanRecord);
        List<SwxLoanRecord> list = swxLoanRecordService.list(queryWrapper);
        ExcelUtil<SwxLoanRecord> util = new ExcelUtil<SwxLoanRecord>(SwxLoanRecord.class);
        util.exportExcel(response, list, "贷款记录数据");
    }

    /**
     * 获取贷款记录详细信息
     */
    @PreAuthorize("@ss.hasPermi('swx:loanRecord:query')")
    @GetMapping(value = "/{id}")
    public Result<SwxLoanRecord>  getInfo(@PathVariable("id") String id){
        SwxLoanRecord swxLoanRecord = swxLoanRecordService.getById(id);
        if(swxLoanRecord==null) {
            return Result.error("未找到对应数据");
        }
        return Result.OK(swxLoanRecord);
    }


    /**
     * 修改贷款记录
     */
    @PreAuthorize("@ss.hasPermi('swx:loanRecord:edit')")
    @Log(title = "贷款记录", businessType = BusinessType.UPDATE)
    @PutMapping
    @Transactional
    public  Result<String> edit(@RequestBody SwxLoanRecord swxLoanRecord){
        //判断修改状态
        if(swxLoanRecord == null || swxLoanRecord.getStatus() <= 0){
            return Result.error("编辑失败！");
        }
        //充值成功
        if (swxLoanRecord.getStatus() == SwxConstons.SWX_EXAMINE_STATUS_YES){
            SwxLoanRecord old = swxLoanRecordService.getById(swxLoanRecord.getId());
            SwxUser swxUser = swxUserService.getById(old.getUserId());
            if(swxUser != null){
                SwxMoneyLog moneyLog = new SwxMoneyLog();
                moneyLog.setInfo("用户贷款，总额为："+old.getAmount()+"利率为:"+old.getRete());
                moneyLog.setStatus(SwxConstons.SWX_EXAMINE_STATUS_YES);
                moneyLog.setType(SwxConstons.SWX_MONEY_LOG_TYPE_LOAN);
                moneyLog.setSymbol(SwxConstons.SWX_MONEY_TYPE_INCOME);
                moneyLog.setTitle("用户贷款");
                moneyLog.setOldAmount(swxUser.getAmount());
                swxUser.setAmount(swxUser.getAmount().add(old.getAmount()));
                //增加用户贷款金额
                swxUser.setLoanAmount(swxUser.getLoanAmount().add(old.getAmount()));
                swxUserService.updateById(swxUser);
                moneyLog.setNowAmount(swxUser.getAmount());
                moneyLog.setUserId(swxUser.getId());
                moneyLog.setBusiId(old.getId());
                moneyLog.setMoney(old.getAmount());
                swxMoneyLogService.save(moneyLog);
                //计算贷款开始天数，贷款计息
                //获取系统参数
                SwxSettings dateSettings = swxSettingsService.getOne(new QueryWrapper<SwxSettings>().lambda().eq(SwxSettings::getParamKey,"loan_rate_begin_time"));
                if(dateSettings == null){
                    return Result.error("系统参数获取有误！");
                }
                Integer rateDate = Integer.parseInt(dateSettings.getParamValue());
                //进行运算，计算贷款开始计息时间，总利息
                LocalDateTime currentDate = LocalDateTime.now();

                // 计算计息开始时间
                LocalDateTime afterDays = currentDate.plusDays(rateDate);
                swxLoanRecord.setBeginDay(Date.from(afterDays.atZone(ZoneId.systemDefault()).toInstant()));
                //下次还款时间
                swxLoanRecord.setNextInterstTime(new SimpleDateFormat("yyyy-MM-dd HH:mm:00").format(Date.from(afterDays.atZone(ZoneId.systemDefault()).toInstant())));
                //计算总利息
                Integer rateDays =old.getTerm() - rateDate;
                //总利息等于总金额*时间*日利率
                BigDecimal interest = (old.getAmount().multiply(new BigDecimal(rateDays)).multiply(old.getRete()).divide(new BigDecimal(100))).setScale(2, BigDecimal.ROUND_HALF_UP);
                swxLoanRecord.setInterest(interest);
                swxLoanRecord.setCurrentInterest(BigDecimal.ZERO);
                //到期时间
                LocalDateTime maturityLocalDate = currentDate.plusDays(old.getTerm());
                swxLoanRecord.setMaturityDate(new SimpleDateFormat("yyyy-MM-dd HH:mm:00").format(Date.from(maturityLocalDate.atZone(ZoneId.systemDefault()).toInstant())));
            }
        }

        swxLoanRecordService.updateById(swxLoanRecord);
        return Result.ok("编辑成功！");
    }


}