package main

import (
    "fmt"
    "net"
    "bufio"
    "strings"
    "os"
)

func send(conn net.Conn, message string) {
    fmt.Println("> ", message)
    fmt.Fprintf(conn, message)
}

func read(conn net.Conn) string {
    fmt.Println("DBG: reading from server...")
    response, err := bufio.NewReader(conn).ReadString('\n')
    if err != nil {
        fmt.Println("oopsies!  Error reading from server! Bailing out")
        os.Exit(1)
    }
    fmt.Println("< ", response)

    return response
}

func privmsg(conn net.Conn, channel string, msg string) {
    send(conn, "PRIVMSG "+channel+" "+":"+msg+"\r\n")
}

func handle_privmsg(conn net.Conn, words []string) {
    //:prgnick!prg@64552A1E:E6FF1A33:696E1BF9:IP PRIVMSG #testchan :thought it would be harder
    //userblock := words[0]
    channel := words[2]
    msg := strings.Join(words[3:], " ")

    if(strings.Contains(strings.ToUpper(msg), "PING")) {
        privmsg(conn, channel, "Pong, mother fuckers..")
    }
}


func main() {
    fmt.Println("This is pre-alpha software.  USE AT YOUR OWN RISK!")
    fmt.Println("Bot initializing...")

    const nick = "super_testbot123"
    const user = nick
    const fullname = "Test bot"
    const server = "irc.whatever.net"
    const port = "6667"

    conn, err := net.Dial("tcp", server + ":" + port)
    if err != nil {
        fmt.Println("Oopsies! Failed to connect to the server!")
    }
    read(conn)
    nick_msg := "NICK " + nick + "\r\n"
    send(conn, nick_msg)
    usr_msg := "USER " + user + " * * :" + fullname + "\r\n"
    send(conn, usr_msg)
    for {
        in_msg := read(conn)
        words := strings.Split(in_msg, " ")
        if(words[0] == "PING") {
            pong_msg := "PONG " + strings.Split(in_msg, " ")[1] + "\r\n"
            send(conn, pong_msg)
        }
        if(words[1] == "PRIVMSG") {
            handle_privmsg(conn, words)
        }
    }


    fmt.Println("Terminating gobot!")
}