jx-callback/business/jxstore/cms/print.go

package cms

import (
	"encoding/json"
	"fmt"
	"git.rosy.net.cn/baseapi/utils"
	"git.rosy.net.cn/jx-callback/business/model"
	"git.rosy.net.cn/jx-callback/business/model/dao"
	"net"
	"os"
	"time"
)

type PrintInfo struct {
	PrintNo string
	AppID   int
}

func AddPrinter(appID int, printNo, printKey, name string) (err error) {
	var (
		db = dao.GetDB()
	)
	//看有没有重复的
	if printers, _ := dao.GetPrinters(db, appID, printNo); len(printers) > 0 {
		return fmt.Errorf("此应用已经绑定了该打印机！print_no : %v", printNo)
	}
	printer := &model.Printer{
		AppID:    appID,
		PrintNo:  printNo,
		PrintKey: printKey,
		Name:     name,
		Status:   model.PrinterStatusOffline,
	}
	dao.WrapAddIDCULDEntity(printer, "")
	if err = dao.CreateEntity(db, printer); err != nil {
		return err
	}
	return err
}

func DelPrinter(appID int, printNo string) (err error) {
	var (
		db = dao.GetDB()
	)
	//看有没有
	if printers, _ := dao.GetPrinters(db, appID, printNo); len(printers) == 0 {
		return fmt.Errorf("该应用下未找到该打印机！print_no : %v", printNo)
	} else {
		if _, err = dao.DeleteEntity(db, printers[0]); err != nil {
			return err
		}
	}
	return err
}

func UpdatePrinter(appID int, printNo, name string) (err error) {
	var (
		db = dao.GetDB()
	)
	//看有没有
	if printers, _ := dao.GetPrinters(db, appID, printNo); len(printers) == 0 {
		return fmt.Errorf("该应用下未找到该打印机！print_no : %v", printNo)
	} else {
		printers[0].Name = name
		if _, err = dao.UpdateEntity(db, printers[0], "Name"); err != nil {
			return err
		}
	}
	return err
}

func DelPrinterSeq(appID int, printNo string) (err error) {
	var (
		db = dao.GetDB()
	)
	//看有没有
	if printers, _ := dao.GetPrinters(db, appID, printNo); len(printers) == 0 {
		return fmt.Errorf("该应用下未找到该打印机！print_no : %v", printNo)
	} else {
		printMsgs, _ := dao.GetPrintMsgs(db, printNo, "", model.PrintMsgWait)
		for _, v := range printMsgs {
			v.DeletedAt = time.Now()
			if _, err = dao.UpdateEntity(db, v, "DeletedAt"); err != nil {
				return err
			}
		}
	}
	return err
}

func DoPrint(appID int, msgID, printNo, content string, orderNo int) (err error) {
	var (
		db = dao.GetDB()
	)
	//打印机必须绑定在该应用下才能打印

	printMsg := &model.PrintMsg{
		PrintNo: printNo,
		Content: content,
		OrderNo: orderNo,
		MsgID:   msgID,
	}
	dao.WrapAddIDCULDEntity(printMsg, "")
	if err = dao.CreateEntity(db, printMsg); err != nil {
		return err
	}
	return err
}

func GetPrintMsg(appID int, msgID string) (printMsg *model.PrintMsg, err error) {
	var (
		db = dao.GetDB()
	)
	if printMsgs, _ := dao.GetPrintMsgs(db, "", msgID, model.PrintMsgAll); len(printMsgs) > 0 {
		for _, v := range printMsgs {
			return v, err
		}
	} else {
		return printMsg, fmt.Errorf("未找到该消息！msg_id :%v", msgID)
	}
	return printMsg, err
}

func GetPrinterStatus(appID int, printNo string) (status int, err error) {
	var (
		db = dao.GetDB()
	)
	//看有没有
	if printers, _ := dao.GetPrinters(db, appID, printNo); len(printers) == 0 {
		return status, fmt.Errorf("该应用下未找到该打印机！print_no : %v", printNo)
	} else {
		server := "print.jxcs.net:8000"
		tcpAddr, err := net.ResolveTCPAddr("tcp4", server)
		if err != nil {
			os.Exit(1)
			return status, err
		}
		conn, err := net.DialTCP("tcp", nil, tcpAddr)
		if err != nil {
			return status, err
		}
		status = connHandler(conn, &PrintInfo{
			PrintNo: printNo,
			AppID:   appID,
		})
	}
	return status, err
}

func connHandler(c net.Conn, printInfo *PrintInfo) (status int) {
	defer c.Close()
	//缓冲
	buf := make([]byte, 1024)
	data, _ := json.Marshal(printInfo)
	//写入数据
	c.Write(data)
	//服务器端返回的数据写入buf
	n, _ := c.Read(buf)
	status = utils.Str2Int(string(buf[:n]))
	//服务器端回传的信息
	fmt.Println("server response:", string(buf[:n]))
	return status
}