package com.ruoyi.purchase.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.core.toolkit.CollectionUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.ruoyi.common.enums.FileNameType;
import com.ruoyi.framework.web.domain.AjaxResult;
import com.ruoyi.purchase.dto.ProductRecordDto;
import com.ruoyi.purchase.dto.TicketRegistrationDto;
import com.ruoyi.purchase.mapper.ProductRecordMapper;
import com.ruoyi.purchase.mapper.PurchaseLedgerMapper;
import com.ruoyi.purchase.mapper.TicketRegistrationMapper;
import com.ruoyi.purchase.pojo.ProductRecord;
import com.ruoyi.purchase.pojo.PurchaseLedger;
import com.ruoyi.purchase.pojo.TicketRegistration;
import com.ruoyi.purchase.service.IProductRecordService;
import com.ruoyi.sales.mapper.CommonFileMapper;
import com.ruoyi.sales.mapper.SalesLedgerProductMapper;
import com.ruoyi.sales.pojo.CommonFile;
import com.ruoyi.sales.pojo.SalesLedgerProduct;
import io.swagger.annotations.ApiModelProperty;
import lombok.AllArgsConstructor;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.util.List;

/**
 * 采购台账产品开票记录Service业务层处理
 *
 * @author ruoyi
 * @date 2025-05-23
 */
@Service
@AllArgsConstructor
public class ProductRecordServiceImpl extends ServiceImpl<ProductRecordMapper, ProductRecord> implements IProductRecordService {

    @Autowired
    private ProductRecordMapper productRecordMapper;

    @Autowired
    private CommonFileMapper commonFileMapper;
    @Autowired
    private SalesLedgerProductMapper salesLedgerProductMapper;
    @Autowired
    private PurchaseLedgerMapper purchaseLedgerMapper;


    /**
     * 查询采购台账产品开票记录
     *
     * @param ticketRegistrationDto 采购台账产品开票记录主键
     * @return 采购台账产品开票记录
     */
    @Override
    public List<ProductRecord> selectProductRecordList(TicketRegistrationDto ticketRegistrationDto) {
        return productRecordMapper.selectList(new LambdaQueryWrapper<ProductRecord>().eq(ProductRecord::getTicketRegistrationId, ticketRegistrationDto.getId())
                .eq(ProductRecord::getType, "2"));
    }

    @Override
    public IPage<ProductRecordDto> productRecordPage(Page page, TicketRegistrationDto ticketRegistrationDto) {
        IPage<ProductRecordDto> productRecordDtoIPage1 = productRecordMapper.productRecordPage(page, ticketRegistrationDto);
        page.setSize(productRecordDtoIPage1.getTotal());
        IPage<ProductRecordDto> productRecordDtoIPage = productRecordMapper.productRecordPage(page, ticketRegistrationDto);
        productRecordDtoIPage.getRecords().forEach(productRecordDto -> {
            productRecordDto.setCommonFiles(commonFileMapper.selectList(new LambdaQueryWrapper<CommonFile>().eq(CommonFile::getCommonId, productRecordDto.getId())
                    .eq(CommonFile::getType, FileNameType.PURCHASELEDGER.getValue())));
        });
        return productRecordDtoIPage;
    }

    private final TicketRegistrationMapper ticketRegistrationMapper;

    @Override
    @Transactional(rollbackFor = Exception.class)
    public AjaxResult updateRecord(ProductRecordDto productRecordDto) {
        ProductRecord productRecord = productRecordMapper.selectById(productRecordDto.getId());
        if (productRecord == null) return AjaxResult.error("记录不存在");

        //  更新产品台账
        SalesLedgerProduct salesLedgerProduct = salesLedgerProductMapper.selectById(productRecord.getSaleLedgerProjectId());
        if (salesLedgerProduct != null) {
            // 未来票金额 = 原未来票金额 + 旧行金额 - 新行金额
            BigDecimal futureTicketsAmount = salesLedgerProduct.getFutureTicketsAmount()
                    .add(productRecord.getTicketsAmount())
                    .subtract(productRecordDto.getTicketsAmount());
            salesLedgerProduct.setFutureTicketsAmount(futureTicketsAmount);

            // 未来票数 = 原未来票数 + 旧行数量 - 新行数量
            BigDecimal futureTickets = salesLedgerProduct.getFutureTickets()
                    .add(productRecord.getTicketsNum())
                    .subtract(productRecordDto.getTicketsNum());
            salesLedgerProduct.setFutureTickets(futureTickets);

            // 更新产品表本次数值
            salesLedgerProduct.setTicketsAmount(productRecordDto.getTicketsAmount());
            salesLedgerProduct.setTicketsNum(productRecordDto.getTicketsNum());
            salesLedgerProductMapper.updateById(salesLedgerProduct);
        }

        //  更新来票登记
        TicketRegistration ticketRegistration = ticketRegistrationMapper.selectById(productRecord.getTicketRegistrationId());
        if (ticketRegistration != null) {
            // 金额 = 新金额 - 旧金额
            BigDecimal amountDiff = productRecordDto.getTicketsAmount().subtract(productRecord.getTicketsAmount());
            // 总金额 = 原总金额 + 差值
            ticketRegistration.setInvoiceAmount(ticketRegistration.getInvoiceAmount().add(amountDiff));
            // 更新发票号
            ticketRegistration.setInvoiceNumber(productRecordDto.getInvoiceNumber());

            ticketRegistrationMapper.updateById(ticketRegistration);
        }

        BeanUtils.copyProperties(productRecordDto, productRecord);
        // 重新计算未来票金额（根据剩余票数 * 单价）
        productRecord.setFutureTicketsAmount(productRecord.getFutureTickets().multiply(productRecord.getTaxInclusiveUnitPrice()));
        productRecordMapper.updateById(productRecord);

        return AjaxResult.success("修改成功");
    }

    @Override
    public ProductRecordDto getProductRecordById(ProductRecordDto productRecordDto) {
        List<ProductRecordDto> productRecordDtoList = productRecordMapper.getProductRecordById(productRecordDto);
        if (CollectionUtils.isNotEmpty(productRecordDtoList)) {
            ProductRecordDto productRecordDto1 = productRecordDtoList.stream()
                    .filter(item -> item.getId().equals(productRecordDto.getId()))
                    .findFirst()
                    .orElse(null);
            // 过滤出与传入的 productRecordDto 主键相同的记录
            BigDecimal reduce = productRecordDtoList
                    .stream()
                    .filter(item -> item.getProductModelId().equals(productRecordDto.getProductModelId()))
                    .map(ProductRecordDto::getTicketsNum)
                    .reduce(BigDecimal.ZERO, BigDecimal::add);
            if (productRecordDto1 != null) {
                productRecordDto1.setFutureTickets(productRecordDto1.getQuantity().subtract(reduce));
                productRecordDto1.setFutureTicketsAmount(productRecordDto1.getFutureTickets().multiply(productRecordDto1.getTaxInclusiveUnitPrice()));
            }
            return productRecordDto1;
        }
        return null;
    }
}