package com.ruoyi.purchase.controller;

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.ruoyi.common.utils.poi.ExcelUtil;
import com.ruoyi.framework.aspectj.lang.annotation.Log;
import com.ruoyi.framework.aspectj.lang.enums.BusinessType;
import com.ruoyi.framework.web.controller.BaseController;
import com.ruoyi.framework.web.domain.AjaxResult;
import com.ruoyi.framework.web.page.TableDataInfo;
import com.ruoyi.purchase.dto.PurchaseLedgerDto;
import com.ruoyi.purchase.mapper.PurchaseLedgerTemplateMapper;
import com.ruoyi.purchase.mapper.SalesLedgerProductTemplateMapper;
import com.ruoyi.purchase.pojo.PurchaseLedger;
import com.ruoyi.purchase.pojo.PurchaseLedgerTemplate;
import com.ruoyi.purchase.pojo.SalesLedgerProductTemplate;
import com.ruoyi.purchase.service.IPurchaseLedgerService;
import com.ruoyi.sales.pojo.SalesLedgerProduct;
import com.ruoyi.sales.service.ISalesLedgerProductService;
import com.ruoyi.sales.service.ISalesLedgerService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.net.URLEncoder;
import java.util.List;
import java.util.Optional;
import java.util.stream.Collectors;

/**
 * 采购台账Controller
 *
 * @author ruoyi
 * @date 2025-05-09
 */
@RestController
@RequestMapping("/purchase/ledger")
@AllArgsConstructor
@Api(tags = "采购台账")
@Slf4j
public class PurchaseLedgerController extends BaseController {
    private IPurchaseLedgerService purchaseLedgerService;

    private ISalesLedgerService salesLedgerService;
    private ISalesLedgerProductService salesLedgerProductService;

    private PurchaseLedgerTemplateMapper purchaseLedgerTemplateMapper;

    private SalesLedgerProductTemplateMapper salesLedgerProductTemplateMapper;


    /**
     * 导入采购台账
     */
    @Log(title = "导入采购台账", businessType = BusinessType.INSERT)
    @PostMapping("/import")
    @ApiOperation("导入采购台账")
    public AjaxResult importData(@RequestParam("file")
                                 @ApiParam(value = "Excel文件", required = true)
                                         MultipartFile file) {
        return purchaseLedgerService.importData(file);
    }

    @ApiOperation("导出采购台账模板")
    @PostMapping("/exportTemplate")
    public void exportTemplate(HttpServletResponse response) {
        // 1. 模板文件在resources/static下的路径
        String templatePath = "static/采购台账导入模板.xlsx";

        // 2. 获取模板文件的输入流
        try (InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream(templatePath)) {
            if (inputStream == null) {
                throw new FileNotFoundException("模板文件不存在：" + templatePath);
            }

            // 3. 设置响应头，触发浏览器下载
            response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
            response.setCharacterEncoding("utf-8");
            String fileName = URLEncoder.encode("采购台账导入模板.xlsx", "utf-8").replaceAll("\\+", "%20");
            response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName);

            // 4. 将模板文件写入响应输出流
            try (OutputStream outputStream = response.getOutputStream()) {
                byte[] buffer = new byte[1024];
                int len;
                while ((len = inputStream.read(buffer)) > 0) {
                    outputStream.write(buffer, 0, len);
                }
                outputStream.flush();
            }
        } catch (IOException e) {
            log.error("导出销售台账模板失败", e);
            // 若模板文件读取失败，返回错误提示
            try {
                response.getWriter().write("模板导出失败：" + e.getMessage());
            } catch (IOException ex) {
                log.error("响应输出错误", ex);
            }
        }
    }

    /**
     * 查询采购台账列表
     */
    @GetMapping("/list")
    public TableDataInfo list(PurchaseLedger purchaseLedger) {
        startPage();
        List<PurchaseLedger> list = purchaseLedgerService.selectPurchaseLedgerList(purchaseLedger);
        return getDataTable(list);
    }

    /**
     * 导出采购台账列表
     */
    @Log(title = "采购台账", businessType = BusinessType.EXPORT)
    @PostMapping("/export")
    public void export(HttpServletResponse response, PurchaseLedger purchaseLedger) {
        List<PurchaseLedger> list = purchaseLedgerService.selectPurchaseLedgerList(purchaseLedger);
        ExcelUtil<PurchaseLedger> util = new ExcelUtil<PurchaseLedger>(PurchaseLedger.class);
        util.exportExcel(response, list, "【请填写功能名称】数据");
    }

    /**
     * 导出来票登记列表
     */
    @Log(title = "导出来票登记列表", businessType = BusinessType.EXPORT)
    @PostMapping("/exportOne")
    public void exportOne(HttpServletResponse response, PurchaseLedger purchaseLedger) {
        Page page = new Page();
        page.setCurrent(-1);
        page.setSize(-1);
        IPage<PurchaseLedgerDto> purchaseLedgerDtoIPage = purchaseLedgerService.selectPurchaseLedgerListPage(page, new PurchaseLedgerDto());
        ExcelUtil<PurchaseLedgerDto> util = new ExcelUtil<PurchaseLedgerDto>(PurchaseLedgerDto.class);
        util.exportExcel(response, purchaseLedgerDtoIPage.getRecords(), "导出来票登记列表");
    }

    /**
     * 新增修改采购台账
     */
    @Log(title = "采购台账", businessType = BusinessType.INSERT)
    @PostMapping("/addOrEditPurchase")
    public AjaxResult addOrEditPurchase(@RequestBody PurchaseLedgerDto purchaseLedgerDto) throws Exception {
        return toAjax(purchaseLedgerService.addOrEditPurchase(purchaseLedgerDto));
    }

    /**
     * 查询采购模板
     */
    @ApiOperation("/查询采购模板")
    @GetMapping("/getPurchaseTemplateList")
    public AjaxResult getPurchaseTemplateList() {
        List<PurchaseLedgerTemplate>  purchaseLedgers = purchaseLedgerTemplateMapper.selectList(null);
        purchaseLedgers.forEach(purchaseLedgerDto1 -> {
            LambdaQueryWrapper<SalesLedgerProductTemplate> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(SalesLedgerProductTemplate::getSalesLedgerId, purchaseLedgerDto1.getId())
                    .eq(SalesLedgerProductTemplate::getType, 2);
            List<SalesLedgerProductTemplate> list = salesLedgerProductTemplateMapper.selectList(queryWrapper);
            if (!list.isEmpty()) {
                purchaseLedgerDto1.setProductList(list);
            }
        });
        return AjaxResult.success(purchaseLedgers);
    }
    /**
     * 修改采购台账审批状态
     */
    @PostMapping("/updateApprovalStatus")
    public AjaxResult addOrEditPurchase(@RequestBody PurchaseLedger purchaseLedger){
        return toAjax(purchaseLedgerService.updateById(purchaseLedger));
    }
    /**
     * 查询采购台账和产品父子列表
     */
    @GetMapping("/getPurchaseById")
    public PurchaseLedgerDto getPurchaseById(PurchaseLedgerDto purchaseLedgerDto) {
        return purchaseLedgerService.getPurchaseById(purchaseLedgerDto);
    }

    /**
     * 查询采购台账和产品父子列表
     */
    @GetMapping("/getPurchaseByCode")
    public PurchaseLedgerDto getPurchaseByCode(PurchaseLedgerDto purchaseLedgerDto) {
        return purchaseLedgerService.getPurchaseByCode(purchaseLedgerDto);
    }

    /**
     * 删除采购台账
     */
    @Log(title = "采购台账", businessType = BusinessType.DELETE)
    @DeleteMapping("/delPurchase")
    public AjaxResult remove(@RequestBody Long[] ids) {
        return toAjax(purchaseLedgerService.deletePurchaseLedgerByIds(ids));
    }

    /**
     * 查询销售合同号
     */
    @GetMapping("/getSalesNo")
    public List getSalesNo() {
        return salesLedgerService.getSalesNo();
    }


    /**
     * 根据销售合同查询产品信息
     */
    @GetMapping("/getProductBySalesNo")
    public AjaxResult getProductBySalesNo(Long id) {
        return AjaxResult.success(purchaseLedgerService.getProductBySalesNo(id));
    }

    /**
     * 查询采购合同号
     */
    @GetMapping("/getPurchaseNo")
    public List getPurchasesNo() {
        return purchaseLedgerService.getPurchasesNo();
    }

    /**
     * 根据id查询采购合同号
     */
    @GetMapping("/getPurchaseNoById")
    public AjaxResult getPurchaseNoById(Long id) {
        return AjaxResult.success(purchaseLedgerService.getPurchaseNoById(id));
    }

    /**
     * 根据采购合同号查询产品
     */
    @GetMapping("/getProduct")
    public List getProduct(PurchaseLedgerDto purchaseLedgerDto) {
        return purchaseLedgerService.getProduct(purchaseLedgerDto);
    }

    /**
     * 根据采购合同号查询产品
     */
    @GetMapping("/getInfo")
    public AjaxResult getInfo(PurchaseLedgerDto purchaseLedgerDto) {
        return AjaxResult.success(purchaseLedgerService.getInfo(purchaseLedgerDto));
    }

    /**
     * 查询采购台账列表
     */
    @GetMapping("/listPage")
    public AjaxResult listPage(Page page, PurchaseLedgerDto purchaseLedger) {
        return AjaxResult.success(purchaseLedgerService.selectPurchaseLedgerListPage(page, purchaseLedger));
    }

    @ApiOperation("生成采购序列号")
    @GetMapping("/createPurchaseNo")
    @Log(title = "生成采购序列号", businessType = BusinessType.OTHER)
    public AjaxResult createPurchaseNo() {
        return AjaxResult.success("生成成功",purchaseLedgerService.getPurchaseNo());
    }
}