// Send get specified user from prompt and actually send it to the target
func Send(ipmsg *goipmsg.IPMSG) {
userIdx := []string{}
i := 0
m := make(map[int]string)
for k, _ := range Users {
i++
fmt.Printf("%d %v\n", i, k)
userIdx = append(userIdx, strconv.Itoa(i))
m[i] = k
}
chosen := (&prompter.Prompter{
Choices: userIdx,
UseDefault: false,
Message: "Choose the user to send message>",
IgnoreCase: true,
}).Prompt()
i, _ = strconv.Atoi(chosen)
key := m[i]
promptMessage := fmt.Sprintf("Enter message(to %v)", key)
message := prompter.Prompt(promptMessage, "")
cd := Users[key]
addr := cd.Addr
cmd := goipmsg.SENDMSG
cmd.SetOpt(goipmsg.SECRET)
err := ipmsg.SendMSG(addr, message, cmd)
if err != nil {
panic(err)
}
fmt.Println("sent SENDMSG")
}
// Join sends BR_ENTRY packet to the broadcast address
func Join(ipmsg *goipmsg.IPMSG) {
addr := brAddr(ipmsg)
cmd := goipmsg.BR_ENTRY
cmd.SetOpt(goipmsg.BROADCAST)
err := ipmsg.SendMSG(addr, ipmsg.Myinfo(), cmd)
if err != nil {
panic(err)
}
fmt.Println("sent BR_ENTRY")
}
func RECEIVE_SENDMSG(cd *goipmsg.ClientData, ipmsg *goipmsg.IPMSG) error {
sl := append(Messages, cd)
Messages = sl
cmd := cd.Command
if cmd.Get(goipmsg.SENDCHECK) {
num := cd.PacketNum
err := ipmsg.SendMSG(cd.Addr, strconv.Itoa(num), goipmsg.RECVMSG)
return err
}
return nil
}
// Switchinput dispatches actions via input
func SwitchInput(ipmsg *goipmsg.IPMSG, input string, quit chan string) {
switch input {
case "help":
fmt.Println("usage:")
fmt.Println("\thelp: show this help.")
fmt.Println("\tquit: quit this programme.")
fmt.Println("\tjoin: let others know U.")
fmt.Println("\tlist: list up users U know.")
fmt.Println("\tsend: send message to user.")
fmt.Println("\tread: read received message.")
case "quit":
fmt.Println("quitting...")
ipmsg.Close()
quit <- "quitting"
case "join":
Join(ipmsg)
case "list":
List(ipmsg)
case "send":
Send(ipmsg)
case "read":
Read(ipmsg)
}
}
func RECEIVE_BR_ENTRY(cd *goipmsg.ClientData, ipmsg *goipmsg.IPMSG) error {
Users[cd.Key()] = cd
ipmsg.SendMSG(cd.Addr, ipmsg.Myinfo(), goipmsg.ANSENTRY)
return nil
}