package com.imed.costaccount.service.impl;

import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DateTime;
import cn.hutool.core.date.DateUtil;
import cn.hutool.core.util.ReUtil;
import cn.hutool.core.util.StrUtil;
import com.imed.costaccount.common.enums.CalcTypeEnum;
import com.imed.costaccount.common.enums.ReportTypeEnum;
import com.imed.costaccount.common.exception.CostException;
import com.imed.costaccount.model.*;
import com.imed.costaccount.model.vo.RelationVO;
import com.imed.costaccount.service.*;
import org.springframework.stereotype.Service;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import com.imed.costaccount.mapper.HospProfitAndLossMapper;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicReference;
import java.util.stream.Collectors;


@Service("hospProfitAndLossService")
public class HospProfitAndLossServiceImpl extends ServiceImpl<HospProfitAndLossMapper, HospProfitAndLoss> implements HospProfitAndLossService {

    private final ReportFormService reportFormService;
    private final IncomeCollectionService collectionService;
    private final AllocationQueryService allocationQueryService;
    private final AllocationService allocationService;

    private final ReportRelationService reportRelationService;
    private final CostShareLevelService shareLevelService;

    public HospProfitAndLossServiceImpl(ReportFormService reportFormService,
                                        IncomeCollectionService collectionService,
                                        AllocationQueryService allocationQueryService,
                                        AllocationService allocationService, ReportRelationService reportRelationService, CostShareLevelService shareLevelService) {
        this.reportFormService = reportFormService;
        this.collectionService = collectionService;
        this.allocationQueryService = allocationQueryService;
        this.allocationService = allocationService;
        this.reportRelationService = reportRelationService;
        this.shareLevelService = shareLevelService;
    }


    /**
     * 计算全院损益
     *
     * @param date   yyyy-MM-dd 时间
     * @param hospId 医院id
     */
    @Override
    @Transactional(propagation = Propagation.REQUIRED, rollbackFor = Throwable.class)
    public void calc(String date, Long hospId) {
        // 得到全院损益计算报表
        List<ReportForm> reportForms = reportFormService.getListByReportType(hospId, ReportTypeEnum.HOSP_PROFIT_LOSS.getType());
        if (CollUtil.isEmpty(reportForms)) {
            throw new CostException("医院未设置全院损益计算报表");
        }
        DateTime parse = DateUtil.parse(date);
        int year = DateUtil.year(parse);
        int month = DateUtil.month(parse) + 1;
        // 得到这个月所有收入数据
        List<IncomeCollection> incomes = collectionService.getCollectionsByDate(year, month, hospId);
        if (incomes.isEmpty()) {
            throw new CostException("医院未归集本月收入数据");
        }

        // 得到这个月的所有成本数据
        List<AllocationQuery> allocationQueries = allocationQueryService.getAllByDate(hospId, year, month);
        if (allocationQueries.isEmpty()) {
            throw new CostException("医院未分摊本月数据");
        }
        List<HospProfitAndLoss> list = new ArrayList<>();
        reportForms.forEach(i -> {
            Integer calcType = i.getCalcType();
            if (calcType == CalcTypeEnum.BY_ACCOUNT.getType()) {
                // 按会计科目计算
                HospProfitAndLoss loss = new HospProfitAndLoss();
                calcByAccount(hospId, i, loss, incomes, allocationQueries);
                loss.setDateMonth(month);
                loss.setDateYear(year);
                list.add(loss);
                return;
            } else if (calcType == CalcTypeEnum.BY_SHARE_LEVEL.getType()) {
                // 分摊层级计算
                HospProfitAndLoss loss = new HospProfitAndLoss();
                calcByShareLevel(hospId, i, loss, year, month);
                loss.setDateMonth(month);
                loss.setDateYear(year);
                list.add(loss);
                return;
            } else if (calcType == CalcTypeEnum.LITTER_COUNT.getType()) {
                // todo 留在最后直接加 减
//                HospProfitAndLoss loss = new HospProfitAndLoss();
//                loss.setDateYear(year).setDateMonth(month).setAmount(BigDecimal.ZERO)
//                        .setReportName(i.getReportName()).setReportNum(i.getNum())
//                        .setCreateTime(System.currentTimeMillis());
//                list.add(loss);
                return;
            } else if (calcType == CalcTypeEnum.CALC_FORMULA.getType()) {
                // todo 留在最后加减
//                HospProfitAndLoss loss = new HospProfitAndLoss();
//                loss.setDateYear(year).setDateMonth(month).setAmount(BigDecimal.ZERO)
//                        .setReportName(i.getReportName()).setReportNum(i.getNum())
//                        .setCreateTime(System.currentTimeMillis());
//                list.add(loss);
                return;
            } else if (calcType == CalcTypeEnum.BY_RESPONSIBILITY.getType()) {
                // 责任中心
                HospProfitAndLoss loss = new HospProfitAndLoss();
                calcByResponsibility(hospId, i, loss, incomes, allocationQueries);
                loss.setDateMonth(month);
                loss.setDateYear(year);
                list.add(loss);
            } else {
                // 不设置不计算
                return;
            }
        });

        // 先处理按公式
        List<ReportForm> calcFormulas = reportForms.stream().filter(i -> i.getCalcType() == CalcTypeEnum.CALC_FORMULA.getType()).collect(Collectors.toList());
        calcFormulas.forEach(i -> {
            String calcFormula = i.getCalcFormula();
            // TODO: 2021/8/27 校验公式合法性
            if (StrUtil.isBlank(calcFormula)) {
                throw new CostException("reportForm名称为" + i.getReportName() + "计算公式不正确");
            }
            String replace = calcFormula.replace("[", "").replace("]", "").replace("-", ",").replace("+", ",");
//            ArrayList<String> strings = CollUtil.newArrayList(replace.split(StrUtil.COMMA));
            ArrayList<String> strings = CollUtil.newArrayList(replace.split(","));
            Map<Integer, Object> map = new ConcurrentHashMap<>();
            for (int j = 0; j < strings.size(); j++) {
                map.put(j, strings.get(j));
            }
//            ReUtil.contains(, "+" + calcFormula);
        });
        // 处理小计
        this.saveBatch(list);
    }

    /**
     * 按责任中心计算
     *
     * @param hospId            医院id
     * @param reportForm        报表
     * @param loss              创建的对象
     * @param incomes           归集收入数据
     * @param allocationQueries 分摊成本数据
     */
    private void calcByResponsibility(Long hospId, ReportForm reportForm, HospProfitAndLoss loss, List<IncomeCollection> incomes, List<AllocationQuery> allocationQueries) {
        List<RelationVO> responsibilities = reportRelationService.getAccountRelation(reportForm.getId(), hospId);
        if (responsibilities.isEmpty()) {
            return;
        }
        List<String> accountCodes = responsibilities.stream().map(RelationVO::getCode).collect(Collectors.toList());
        AtomicReference<BigDecimal> calcTotal = new AtomicReference<>();
        calcTotal.set(BigDecimal.ZERO);
        accountCodes.forEach(i -> {
//            BigDecimal incomeAmount = incomes.stream().filter(j -> i.equals(j.getResponsibilityCode())).map(IncomeCollection::getAmount)
//                    .reduce(BigDecimal.ZERO, BigDecimal::add);
            BigDecimal costAmount = allocationQueries.stream().filter(j -> i.equals(j.getResponsibilityCode())).map(AllocationQuery::getAmount)
                    .reduce(BigDecimal.ZERO, BigDecimal::add);
//            BigDecimal total = incomeAmount.subtract(costAmount);
            calcTotal.set(calcTotal.get().add(costAmount));
        });
        loss.setReportName(reportForm.getReportName()).setReportNum(reportForm.getNum())
                .setAmount(calcTotal.get()).setCreateTime(System.currentTimeMillis());


    }


    /**
     * 按计算公式计算
     *
     * @param hospId            医院id
     * @param reportForm        报表
     * @param loss              创建的对象
     * @param incomes           归集收入数据
     * @param allocationQueries 分摊成本数据
     */
    private void calcByFormula(Long hospId, ReportForm reportForm, HospProfitAndLoss loss, List<IncomeCollection> incomes, List<AllocationQuery> allocationQueries) {
        String calcFormula = reportForm.getCalcFormula();
        // TODO: 2021/8/27 校验公式合法性
        if (StrUtil.isBlank(calcFormula)) {
            throw new CostException("reportForm名称为" + reportForm.getReportName() + "计算公式不正确");
        }
        // 得到11 + 12 - 1
        String sub = StrUtil.removeAny(calcFormula, "[", "]");
        // TODO: 2021/8/27

    }

    /**
     * 按小计计算
     *
     * @param hospId            医院id
     * @param reportForm        报表
     * @param loss              创建的对象
     * @param incomes           归集收入数据
     * @param allocationQueries 分摊成本数据
     */
    private void calcByLitterCount(Long hospId, ReportForm reportForm, HospProfitAndLoss loss, List<IncomeCollection> incomes, List<AllocationQuery> allocationQueries) {
        Long parentId = reportForm.getParentId();
        List<ReportForm> forms = reportFormService.getByParentId(hospId, parentId);
        forms.forEach(i -> {
            // 排除自己
            if (i.getId().equals(reportForm.getId())) {
                return;
            }
            // 计算其他几项之和
            // TODO: 2021/8/27

        });
    }

    /**
     * 按分摊层级计算
     *
     * @param hospId     医院id
     * @param reportForm 报表
     * @param loss       创建的对象
     * @param year
     * @param month
     */
    private void calcByShareLevel(Long hospId, ReportForm reportForm, HospProfitAndLoss loss, int year, int month) {
        List<RelationVO> shareLevels = reportRelationService.getAccountRelation(reportForm.getId(), hospId);
        List<Long> shareLevelId = shareLevels.stream().map(RelationVO::getCode).map(Long::valueOf).collect(Collectors.toList());
        List<CostShareLevel> costShareLevels = shareLevelService.listByIds(shareLevelId);
        if (costShareLevels.isEmpty()) {
            throw new CostException("医院分摊层级设置错误，" + reportForm.getReportName());
        }
        List<Integer> levelSorts = costShareLevels.stream().map(CostShareLevel::getLeverSort).collect(Collectors.toList());
        List<Allocation> allocations = allocationService.getByDate(year, month, hospId, levelSorts);
        if (allocations.isEmpty()) {
            throw new CostException("医院未分摊本月数据");
        }
        BigDecimal reduce = allocations.stream().map(Allocation::getAmount).reduce(BigDecimal.ZERO, BigDecimal::subtract);

        loss.setReportName(reportForm.getReportName()).setReportNum(reportForm.getNum())
                .setAmount(reduce).setCreateTime(System.currentTimeMillis()).setDateYear(year).setDateMonth(month);
    }

    /**
     * 计算按会计科目下的科目名称
     *
     * @param hospId            医院id
     * @param reportForm        报表
     * @param loss              创建的对象
     * @param incomes           归集收入数据
     * @param allocationQueries 分摊成本数据
     */
    private void calcByAccount(Long hospId, ReportForm reportForm, HospProfitAndLoss loss, List<IncomeCollection> incomes, List<AllocationQuery> allocationQueries) {
        List<RelationVO> accountRelations = reportRelationService.getAccountRelation(reportForm.getId(), hospId);
        if (accountRelations.isEmpty()) {
            return;
        }
        List<String> accountCodes = accountRelations.stream().map(RelationVO::getCode).collect(Collectors.toList());
        AtomicReference<BigDecimal> calcTotal = new AtomicReference<>();
        calcTotal.set(BigDecimal.ZERO);
        accountCodes.forEach(i -> {
            BigDecimal incomeAmount = incomes.stream().filter(j -> i.equals(j.getAccountingCode())).map(IncomeCollection::getAmount)
                    .reduce(BigDecimal.ZERO, BigDecimal::add);
            BigDecimal costAmount = allocationQueries.stream().filter(j -> i.equals(j.getAccountingCode())).map(AllocationQuery::getAmount)
                    .reduce(BigDecimal.ZERO, BigDecimal::add);
            BigDecimal total = incomeAmount.subtract(costAmount);
            calcTotal.set(calcTotal.get().add(total));
        });
        loss.setReportName(reportForm.getReportName()).setReportNum(reportForm.getNum())
                .setAmount(calcTotal.get()).setCreateTime(System.currentTimeMillis());

    }
}