DMAC/cmd/tui/main.go

package main

import (
    "fmt"
    "flag"
    "log"
    "os"
    "strconv"
    "FRMS/internal/pkg/tui"
)

type TUI interface {
    Start()
}

func NewTUI(ip string, port int, ch chan error) TUI {
    return tui.NewTUI(ip, port, ch)
}

func main() {
    var port int
    var err error
    flag.Usage = func() {
        w := flag.CommandLine.Output()
        fmt.Fprintf(w,"Usage: %s port \n", os.Args[0])
    }
    iptr := flag.String("i","192.168.100.2","ip address of listener")
    flag.Parse()
    if flag.NArg() != 1 {
        flag.Usage()
        os.Exit(1)
    }
    args := flag.Args()
    if port, err = strconv.Atoi(args[0]); port < 1024 || port > 65536 {
        flag.Usage()
        log.Fatal("Port must be between [1023,65535]")
    } else if err != nil {
        log.Fatal(err)
    }
    ip := *iptr
    ch := make(chan error)
    t := NewTUI(ip,port,ch)
    go t.Start()
    err = <-ch
    if err != nil {
        log.Fatal(err)
    }
}