package com.ruoyi.sales.controller;

import com.baomidou.mybatisplus.core.metadata.IPage;
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.domain.AjaxResult;
import com.ruoyi.sales.dto.SalesQuotationDto;
import com.ruoyi.sales.service.SalesQuotationService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
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.net.URLEncoder;

@RestController
@RequestMapping("/sales/quotation")
@Slf4j
public class SalesQuotationController {
    @Autowired
    private SalesQuotationService salesQuotationService;
    @GetMapping("/list")
    public AjaxResult getList(Page page, SalesQuotationDto salesQuotationDto) {
        return AjaxResult.success(salesQuotationService.listPage(page, salesQuotationDto));
    }


    @PostMapping("/export")
    public void export(HttpServletResponse response) {
        Page page = new Page(-1,-1);
        SalesQuotationDto afterSalesService = new SalesQuotationDto();
        IPage<SalesQuotationDto> listPage = salesQuotationService.listPage(page, afterSalesService);
        ExcelUtil<SalesQuotationDto> util = new ExcelUtil<SalesQuotationDto>(SalesQuotationDto.class);
        util.exportExcel(response, listPage.getRecords() , "销售报价");
    }


    @PostMapping("/add")
    public AjaxResult add(@RequestBody SalesQuotationDto salesQuotationDto) {
        return AjaxResult.success(salesQuotationService.add(salesQuotationDto));
    }
    @PostMapping("/update")
    @Log(title = "报价更新", businessType = BusinessType.UPDATE)
    public AjaxResult update(@RequestBody SalesQuotationDto salesQuotationDto) {
        return AjaxResult.success(salesQuotationService.edit(salesQuotationDto));
    }
    @DeleteMapping("/delete")
    public AjaxResult delete(@RequestBody Long id) {
        return AjaxResult.success(salesQuotationService.delete(id));
    }

    @PostMapping("/downloadTemplate")
    public void exportTemplate(HttpServletResponse response) {
        // 1. 模板文件在resources/static下的路径
        String templatePath = "static/销售报价导入模板.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("销售报价导入模板.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("导出销售报价模板失败", 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);
            }
        }
    }

    @PostMapping("/import")
    public AjaxResult importData(@RequestParam("file") MultipartFile file, @RequestParam("approveUserIdsJson") String approveUserIdsJson) {
        return AjaxResult.success(salesQuotationService.importData(file, approveUserIdsJson));
    }
}