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path: root/main.go
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package main

import (
	"flag"
	"log"

	irc "github.com/fluffle/goirc/client"
)

func notify(conn *irc.Conn, target string) chan string {
	const maxLen = 500
	c := make(chan string, 1)
	go func() {
		for msg := range c {
			if len(msg) > maxLen {
				msg = msg[:maxLen] + "..."
			}
			log.Println("send", msg)
			conn.Notice(target, msg)
		}
	}()
	return c
}

func kicker(conn *irc.Conn, channel string) chan string {
	c := make(chan string, 1)
	go func() {
		for nick := range c {
			if nick != conn.Me().Nick {
				log.Println("kick", nick)
				conn.Kick(channel, nick)
			}
		}
	}()
	return c
}

func privmsg(note, kick chan string) irc.HandlerFunc {
	links := linker(note)
	return func(conn *irc.Conn, line *irc.Line) {
		switch t := line.Text(); {
		case isFlood(t):
			kick <- line.Nick
		default:
			links <- t
		}
	}
}

func main() {
	node := flag.String("node", "irc.freenode.org", "IRC Server")
	ssl := flag.Bool("ssl", false, "Use SSL")
	room := flag.String("room", "#lor", "IRC Channel")
	name := flag.String("name", "dim13", "Bots Name")
	flag.Parse()

	conf := irc.NewConfig(*name)
	conf.Server = *node
	conf.SSL = *ssl
	conn := irc.Client(conf)

	note := notify(conn, *room)
	kick := kicker(conn, *room)

	done := make(chan struct{})

	conn.HandleFunc(irc.DISCONNECTED, func(_ *irc.Conn, _ *irc.Line) {
		close(done)
	})

	conn.HandleFunc(irc.CONNECTED, func(conn *irc.Conn, _ *irc.Line) {
		conn.Join(*room)
		go Watch(note, Feeds)
	})

	conn.HandleFunc(irc.PRIVMSG, privmsg(note, kick))

	conn.HandleFunc(irc.KICK, func(conn *irc.Conn, _ *irc.Line) {
		conn.Join(*room)
	})

	if err := conn.Connect(); err != nil {
		log.Fatal(err)
	}
	<-done
}