package com.engine.salary.service.impl;

import com.engine.common.util.ServiceUtil;
import com.engine.core.impl.Service;
import com.engine.salary.annotation.SalaryTableColumn;
import com.engine.salary.entity.taxdeclaration.dto.TaxDeclarationLaborListDTO;
import com.engine.salary.entity.taxdeclaration.dto.TaxDeclarationWageListDTO;
import com.engine.salary.entity.taxdeclaration.param.TaxDeclarationDetailListQueryParam;
import com.engine.salary.entity.taxdeclaration.po.TaxDeclarationPO;
import com.engine.salary.enums.salarysob.IncomeCategoryEnum;
import com.engine.salary.mapper.taxdeclaration.TaxDeclarationDetailMapper;
import com.engine.salary.service.TaxDeclarationDetailService;
import com.engine.salary.service.TaxDeclarationExcelService;
import com.engine.salary.service.TaxDeclarationService;
import com.engine.salary.util.JsonUtil;
import com.engine.salary.util.SalaryI18nUtil;
import com.engine.salary.util.db.MapperProxyFactory;
import com.engine.salary.util.excel.ExcelUtil;
import com.engine.salary.util.page.PageInfo;
import com.google.common.collect.Lists;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import weaver.hrm.User;

import java.lang.reflect.Field;
import java.util.List;
import java.util.Map;
import java.util.Objects;

/**
 * 个税申报表导出
 * <p>Copyright: Copyright (c) 2022</p>
 * <p>Company: 泛微软件</p>
 *
 * @author qiantao
 * @version 1.0
 **/
@Slf4j
public class TaxDeclarationExcelServiceImpl extends Service implements TaxDeclarationExcelService {

    private TaxDeclarationDetailService getTaxDeclarationDetailService(User user) {
        return ServiceUtil.getService(TaxDeclarationDetailServiceImpl.class, user);
    }
    private TaxDeclarationDetailMapper getTaxDeclarationDetailMapper() {
        return MapperProxyFactory.getProxy(TaxDeclarationDetailMapper.class);
    }
    private TaxDeclarationService getTaxDeclarationService(User user) {
        return ServiceUtil.getService(TaxDeclarationServiceImpl.class, user);
    }



    @Override
    public XSSFWorkbook exportTaxDeclaration(Long taxDeclarationId) {
        // 1.工作簿名称
        String sheetName = SalaryI18nUtil.getI18nLabel(85368, "个税申报表");


        TaxDeclarationPO taxDeclarationPO = getTaxDeclarationService(user).getById(taxDeclarationId);
        // 查询当前个税申报表一共有多少人员
        int count = getTaxDeclarationDetailMapper().countEmployeeId(taxDeclarationId);
        // 以1000个人员一页，一共有多少页
        int totalPages = (count % 1000 == 0) ? (count / 1000) : (count / 1000 + 1); //总页数
        // excel导出的数据
        List<List<Object>> rows = Lists.newArrayListWithExpectedSize(count);
        List<Object> headerList = Lists.newArrayList();
        List<String> dataIndexList = Lists.newArrayList();
        if (Objects.equals(taxDeclarationPO.getIncomeCategory(), IncomeCategoryEnum.WAGES_AND_SALARIES.getValue())) {
            // 解析表头
            parseHeader(TaxDeclarationWageListDTO.class, headerList, dataIndexList);
            rows.add(headerList);
            for (int i = 0; i < totalPages; i++) {
                TaxDeclarationDetailListQueryParam queryParam = new TaxDeclarationDetailListQueryParam();
                queryParam.setTaxDeclarationId(taxDeclarationId);
                queryParam.setCurrent(i);
                queryParam.setPageSize(1000);
                PageInfo<TaxDeclarationWageListDTO> dtoPage = getTaxDeclarationDetailService(user).listDtoPageByParam4Wage(queryParam);
                List<TaxDeclarationWageListDTO> list = dtoPage.getList();
                for (TaxDeclarationWageListDTO taxDeclarationWageListDTO : list) {
                    List<Object> row = Lists.newArrayListWithExpectedSize(dataIndexList.size());
                    Map<String, Object> map = JsonUtil.parseMap(taxDeclarationWageListDTO, Object.class);
                    for (String dataIndex : dataIndexList) {
                        row.add(map.get(dataIndex));
                    }
                    rows.add(row);
                }
            }
        }
        if (Objects.equals(taxDeclarationPO.getIncomeCategory(), IncomeCategoryEnum.REMUNERATION_FOR_LABOR.getValue())) {
            // 解析表头
            parseHeader(TaxDeclarationLaborListDTO.class, headerList, dataIndexList);
            rows.add(headerList);
            for (int i = 0; i < totalPages; i++) {
                TaxDeclarationDetailListQueryParam queryParam = new TaxDeclarationDetailListQueryParam();
                queryParam.setTaxDeclarationId(taxDeclarationId);
                queryParam.setCurrent(i);
                queryParam.setPageSize(1000);
                PageInfo<TaxDeclarationLaborListDTO> dtoPage = getTaxDeclarationDetailService(user).listDtoPageByParam4Labor(queryParam);
                List<TaxDeclarationLaborListDTO> list = dtoPage.getList();
                for (TaxDeclarationLaborListDTO taxDeclarationLaborListDTO : list) {
                    List<Object> row = Lists.newArrayListWithExpectedSize(dataIndexList.size());
                    Map<String, Object> map = JsonUtil.parseMap(taxDeclarationLaborListDTO, Object.class);
                    for (String dataIndex : dataIndexList) {
                        row.add(map.get(dataIndex));
                    }
                    rows.add(row);
                }
            }
        }
        return ExcelUtil.genWorkbookV2(rows, sheetName);
    }


    /**
     * 解析表头
     *
     * @param clazz
     * @param headerList
     * @param dataIndexList
     * @param <T>
     */
    private <T> void parseHeader(Class<T> clazz, List<Object> headerList, List<String> dataIndexList) {
        Field[] declaredFields = clazz.getDeclaredFields();
        for (Field declaredField : declaredFields) {
            if (!declaredField.isAnnotationPresent(SalaryTableColumn.class)) {
                continue;
            }
            SalaryTableColumn annotation = declaredField.getAnnotation(SalaryTableColumn.class);
            headerList.add(SalaryI18nUtil.getI18nLabel( annotation.labelId(), annotation.text()));
            dataIndexList.add(declaredField.getName());
        }
    }
}