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|
package main
import (
"crypto/tls"
"fmt"
"net"
irc "go.lindenii.runxiyu.org/lindenii-irc"
)
var (
ircSendBuffered chan string
ircSendDirectChan chan errorBack[string]
)
type errorBack[T any] struct {
content T
errorBack chan error
}
func ircBotSession() error {
var err error
var underlyingConn net.Conn
if ircTLS {
underlyingConn, err = tls.Dial(ircNet, ircAddr, nil)
} else {
underlyingConn, err = net.Dial(ircNet, ircAddr)
}
if err != nil {
return err
}
defer underlyingConn.Close()
conn := irc.NewConn(underlyingConn)
logAndWriteLn := func(s string) (n int, err error) {
return conn.WriteString(s + "\r\n")
}
_, err = logAndWriteLn("NICK :" + ircNick)
if err != nil {
return err
}
_, err = logAndWriteLn("USER " + ircUsername + " 0 * :" + ircRealname)
if err != nil {
return err
}
readLoopError := make(chan error)
writeLoopAbort := make(chan struct{})
go func() {
for {
select {
case <-writeLoopAbort:
return
default:
}
msg, line, err := conn.ReadMessage()
if err != nil {
readLoopError <- err
return
}
fmt.Println(line)
switch msg.Command {
case "001":
_, err = logAndWriteLn("JOIN " + ircChannel)
if err != nil {
readLoopError <- err
return
}
case "PING":
_, err = logAndWriteLn("PONG :" + msg.Args[0])
if err != nil {
readLoopError <- err
return
}
case "JOIN":
c, ok := msg.Source.(irc.Client)
if !ok {
}
if c.Nick != ircNick {
continue
}
default:
}
}
}()
for {
select {
case err = <-readLoopError:
return err
case line := <-ircSendBuffered:
_, err = logAndWriteLn(line)
if err != nil {
select {
case ircSendBuffered <- line:
default:
}
writeLoopAbort <- struct{}{}
return err
}
case lineErrorBack := <-ircSendDirectChan:
_, err = logAndWriteLn(lineErrorBack.content)
lineErrorBack.errorBack <- err
if err != nil {
writeLoopAbort <- struct{}{}
return err
}
}
}
}
func ircSendDirect(s string) error {
ech := make(chan error, 1)
ircSendDirectChan <- errorBack[string]{
content: s,
errorBack: ech,
}
return <-ech
}
func ircBotLoop() {
ircSendBuffered = make(chan string, ircBuf)
ircSendDirectChan = make(chan errorBack[string])
for {
_ = ircBotSession()
}
}
func init() {
go ircBotLoop()
}
|
