package com.ots.framework.web.controller;
import cn.hutool.core.util.URLUtil;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.ots.common.utils.DateUtils;
import com.ots.common.utils.StringUtils;
import com.ots.common.utils.security.ShiroUtils;
import com.ots.common.utils.sql.SqlUtil;
import com.ots.framework.web.domain.AjaxResult;
import com.ots.framework.web.domain.AjaxResult.Type;
import com.ots.framework.web.page.PageDomain;
import com.ots.framework.web.page.TableDataInfo;
import com.ots.framework.web.page.TableSupport;
import com.ots.project.system.user.domain.User;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.core.io.ClassPathResource;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.beans.PropertyEditorSupport;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import java.util.Date;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class BaseController {
    
    @InitBinder
    public void initBinder(WebDataBinder binder) {
        
        binder.registerCustomEditor(Date.class, new PropertyEditorSupport() {
            @Override
            public void setAsText(String text) {
                setValue(DateUtils.parseDate(text));
            }
        });
    }
    
    protected void startPage() {
        PageDomain pageDomain = TableSupport.buildPageRequest();
        Integer pageNum = pageDomain.getPageNum();
        Integer pageSize = pageDomain.getPageSize();
        if (StringUtils.isNotNull(pageNum) && StringUtils.isNotNull(pageSize)) {
            String orderBy = SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
            PageHelper.startPage(pageNum, pageSize, orderBy);
        }
    }
    
    @SuppressWarnings({"rawtypes", "unchecked"})
    protected TableDataInfo getDataTable(List<?> list) {
        TableDataInfo rspData = new TableDataInfo();
        rspData.setCode(0);
        rspData.setRows(list);
        rspData.setTotal(new PageInfo(list).getTotal());
        return rspData;
    }
    
    protected AjaxResult toAjax(int rows) {
        return rows > 0 ? success() : error();
    }
    
    protected AjaxResult toAjax(boolean result) {
        return result ? success() : error();
    }
    
    public AjaxResult success() {
        return AjaxResult.success();
    }
    
    public AjaxResult error() {
        return AjaxResult.error();
    }
    
    public AjaxResult success(String message) {
        return AjaxResult.success(message);
    }
    
    public AjaxResult error(String message) {
        return AjaxResult.error(message);
    }
    
    public AjaxResult error(Type type, String message) {
        return new AjaxResult(type, message);
    }
    
    public String redirect(String url) {
        return StringUtils.format("redirect:{}", url);
    }
    public User getSysUser() {
        return ShiroUtils.getSysUser();
    }
    public void setSysUser(User user) {
        ShiroUtils.setSysUser(user);
    }
    public Long getUserId() {
        return getSysUser().getUserId();
    }
    public String getLoginName() {
        return getSysUser().getLoginName();
    }
    public static void main(String[] args) {
        String line = "xxxxx";
        System.out.println(getJson(line, "time_slot_list"));
    }
    public static String getJson(String json, String key) {
        String pattern = key + "\": \\{[^}]*\\}";
        
        Pattern r = Pattern.compile(pattern);
        
        Matcher m = r.matcher(json);
        if (m.find()) {
            String group = m.group(0);
            group = group.replace(key + "\":", key + "\":[");
            group += "]";
            return json.replaceAll(pattern, group);
        }
        return json;
    }

    public void downDeviceManagementTemplate(String fileName, String path , HttpServletRequest req, HttpServletResponse res) throws UnsupportedEncodingException {
        // 读取服务器端模板文件
        // ClassPathResource类的构造方法接收路径名称，自动去classpath路径下找文件
        ClassPathResource classPathResource = new ClassPathResource(path);

        //创建临时文件
        XSSFWorkbook workbook = null;
        try (InputStream inputStream = classPathResource.getInputStream()) {
            // 转为POI的Workbook输出流，这样下载后 打开不报错，直接输出  流 的话，打开excel可能提示错误
            workbook = new XSSFWorkbook(inputStream);
        } catch (IOException e) {
            e.printStackTrace();
            throw new RuntimeException("模板下载异常");
        }
        String userAgent = req.getHeader("User-Agent");
        // 针对IE或者以IE为内核的浏览器：
        if(userAgent.contains("MSIE")||userAgent.contains("Trident")) {
            fileName = URLUtil.encode(fileName, Charset.forName("UTF-8"));
        } else {
            // 非IE浏览器的处理：
            fileName = new String(fileName.getBytes("UTF-8"),"ISO-8859-1");
        }
        res.setHeader("Content-disposition", "attachment; filename=" + fileName);
        res.setContentType("application/vnd.ms-excel; charset=utf-8");
        res.setCharacterEncoding("UTF-8");
        // 将流中内容写出去
        try (OutputStream outputStream = res.getOutputStream()) {
            workbook.write(outputStream);
            outputStream.flush();
        } catch (IOException e) {
            e.printStackTrace();
            throw new RuntimeException("模板下载异常");
        }
    }
}