package com.sunda.spmsweb.util;

import com.alibaba.excel.ExcelWriter;
import com.alibaba.excel.write.metadata.WriteSheet;
import com.sunda.spmsorder.excel.OrderWorkshopExcel;
import org.apache.commons.codec.Charsets;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;

import com.alibaba.excel.EasyExcel;
import com.alibaba.excel.read.builder.ExcelReaderBuilder;
import com.alibaba.excel.read.builder.ExcelReaderSheetBuilder;
import com.alibaba.excel.read.listener.ReadListener;
import com.alibaba.excel.util.DateUtils;
import com.alibaba.excel.write.builder.ExcelWriterBuilder;
import com.alibaba.excel.write.handler.WriteHandler;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLEncoder;
import java.util.Date;
import java.util.List;

public class ExcelUtil {

    public ExcelUtil() {
    }

    public static <T> List<T> read(MultipartFile excel, Class<T> clazz) {
        DataListener<T> dataListener = new DataListener();
        ExcelReaderBuilder builder = getReaderBuilder(excel, dataListener, clazz);
        if (builder == null) {
            return null;
        } else {
            builder.doReadAll();
            return dataListener.getDataList();
        }
    }

    public static <T> List<T> read(MultipartFile excel, int sheetNo, Class<T> clazz) {
        return read(excel, sheetNo, 1, clazz);
    }

    public static <T> List<T> read(MultipartFile excel, int sheetNo, int headRowNumber, Class<T> clazz) {
        DataListener<T> dataListener = new DataListener();
        ExcelReaderBuilder builder = getReaderBuilder(excel, dataListener, clazz);
        if (builder == null) {
            return null;
        } else {
            ((ExcelReaderSheetBuilder)builder.sheet(sheetNo).headRowNumber(headRowNumber)).doRead();
            return dataListener.getDataList();
        }
    }

    public static <T> void save(MultipartFile excel, ExcelImporter<T> importer, Class<T> clazz) {
        ImportListener<T> importListener = new ImportListener(importer);
        ExcelReaderBuilder builder = getReaderBuilder(excel, importListener, clazz);
        if (builder != null) {
            builder.doReadAll();
        }

    }

    public static <T> void export(HttpServletResponse response, List<T> dataList, Class<T> clazz) {
        try {
            export(response, DateUtils.format(new Date(), "yyyyMMddHHmmss"), "导出数据", dataList, clazz);
        } catch (Throwable var4) {
            throw var4;
        }
    }

    public static <T> void export(HttpServletResponse response, String fileName, String sheetName, List<T> dataList, Class<T> clazz) {
        try {
            response.setContentType("application/vnd.ms-excel");
            response.setCharacterEncoding(Charsets.UTF_8.name());
            fileName = URLEncoder.encode(fileName, Charsets.UTF_8.name());
            response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
            EasyExcel.write(response.getOutputStream(), clazz).sheet(sheetName).doWrite(dataList);
        } catch (Throwable var6) {
            System.out.println("export异常："+var6.getMessage());
            //throw var6;
        }
    }

    public static <T> void exportMore(HttpServletResponse response, String fileName,
                                      List<OrderWorkshopExcel> headList, Class<OrderWorkshopExcel> headclazz,
                                      List<T> dataList, Class<T> clazz) {
        try {
            response.setContentType("application/vnd.ms-excel");
            response.setCharacterEncoding(Charsets.UTF_8.name());
            fileName = URLEncoder.encode(fileName, Charsets.UTF_8.name());
            response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
            ExcelWriter excelWriter = EasyExcel.write(response.getOutputStream()).build();
            WriteSheet writeSheet1 = EasyExcel.writerSheet(0, "headerData").head(headclazz).build();
            WriteSheet writeSheet2 = EasyExcel.writerSheet(1, "bodyData").head(clazz).build();
            excelWriter.write(headList, writeSheet1);
            excelWriter.write(dataList, writeSheet2);
            excelWriter.finish();
        } catch (Throwable var6) {
            System.out.println("export异常："+var6.getMessage());
            //throw var6;
        }
    }

    public static <T> void export(HttpServletResponse response, String fileName, String sheetName, List<T> dataList, WriteHandler writeHandler, Class<T> clazz) {
        try {
            response.setContentType("application/vnd.ms-excel");
            response.setCharacterEncoding(Charsets.UTF_8.name());
            fileName = URLEncoder.encode(fileName, Charsets.UTF_8.name());
            response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
            ((ExcelWriterBuilder)EasyExcel.write(response.getOutputStream(), clazz).registerWriteHandler(writeHandler)).sheet(sheetName).doWrite(dataList);
        } catch (Throwable var7) {
            System.out.println("export异常："+var7.getMessage());
            //throw var7;
        }
    }

    public static <T> ExcelReaderBuilder getReaderBuilder(MultipartFile excel, ReadListener<T> readListener, Class<T> clazz) {
        String filename = excel.getOriginalFilename();
        if (StringUtils.isEmpty(filename)) {
            System.out.println("请上传文件!");
            //throw new Exception("请上传文件!");
            return null;
        } else if (!StringUtils.endsWithIgnoreCase(filename, ".xls") && !StringUtils.endsWithIgnoreCase(filename, ".xlsx")) {
            System.out.println("请上传正确的excel文件!");
            //throw new Exception("请上传正确的excel文件!");
            return null;
        } else {
            try {
                InputStream inputStream = new BufferedInputStream(excel.getInputStream());
                return EasyExcel.read(inputStream, clazz, readListener);
            } catch (IOException var6) {
                var6.printStackTrace();
                return null;
            }
        }
    }
}