The new logbot, not committed from the wrong terminal window this time.
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package bot
import (
"context"
"log"
"strings"
"time"
"github.com/gissleh/irc"
"git.aiterp.net/rpdata/logbot3/internal/config"
"git.aiterp.net/rpdata/logbot3/internal/models/channels"
"git.aiterp.net/rpdata/logbot3/internal/models/logs"
"git.aiterp.net/rpdata/logbot3/internal/models/posts"
)
// A Channel represents a handler for a single channel that takes care of the logging and such.
type Channel struct {
ctx context.Context
cancel context.CancelFunc
ch chan ChannelPost
lastPostSessionID string
lastPostTime time.Time
name string
parentCtx context.Context
parent *Bot
client *irc.Client
}
func newChannel(parent *Bot, name string, client *irc.Client) *Channel {
ctx, cancel := context.WithCancel(parent.ctx)
return &Channel{
name: name,
parent: parent,
parentCtx: parent.ctx,
client: client,
ch: make(chan ChannelPost, 8),
ctx: ctx,
cancel: cancel,
}
}
func (channel *Channel) loop() {
queue := make([]ChannelPost, 0, 8)
minutely := time.NewTicker(time.Minute)
defer channel.cancel()
defer minutely.Stop()
// In case of a crash, it should take ownership of sessions when rejoining.
session, err := logs.FindOpen(channel.parentCtx, channel.name)
if err == nil {
minsUntilDeadline := 1 + int(((time.Hour * 2) - time.Since(session.LatestTime())).Minutes())
if minsUntilDeadline < 1 {
minsUntilDeadline = 1
}
channel.client.Sayf(channel.name, "Session https://aiterp.net/logs/%s will be closed in %d min if there are no new posts.", session.ID, minsUntilDeadline)
channel.lastPostSessionID = session.ID
channel.lastPostTime = session.LatestTime()
}
// If the bot is op, run the commands from the configuration.
go func() {
time.Sleep(time.Second)
commands := config.Get().Commands.OnJoinOp
target := channel.client.Channel(channel.name)
if len(commands) > 0 && target != nil {
me, ok := target.UserList().User(channel.client.Nick())
if ok && strings.ContainsRune(me.Modes, 'o') {
channel.parent.runCommands(commands, target, map[string]string{
"chan": channel.name,
})
}
}
}()
for {
select {
case post := <-channel.ch:
{
// Handle bot commands, or add to queue otherwise.
if cmd := post.botCommand(); cmd != nil {
switch cmd.Verb {
case "end", "ends", "endsession":
{
session, err := logs.FindOpen(channel.parentCtx, channel.name)
if err == logs.ErrNoneOpen {
channel.client.Say(channel.name, "No open session found. Mission accomplished, I guess?")
break
} else if err != nil {
log.Println("Could not find session:", err)
break
}
_, err = logs.SetOpen(channel.parentCtx, session, false)
if err != nil {
channel.client.Say(channel.name, "Something went wrong when closing the log, please use the website instead.")
log.Println("Could not set open:", err)
}
}
case "tag", "event":
{
if cmd.Text == "" {
channel.client.Say(channel.name, "Usage: !tag <Event Name>")
}
session, err := logs.FindOpen(channel.parentCtx, channel.name)
if err == logs.ErrNoneOpen {
channel.client.Say(channel.name, "No open session found. You can edit closed logs on the website.")
break
} else if err != nil {
log.Println("Could not find session:", err)
break
}
_, err = logs.SetEventName(channel.parentCtx, session, cmd.Text)
if err != nil {
channel.client.Say(channel.name, "Something went wrong when setting the event name, please use the website instead.")
log.Println("Could not set event name:", err)
}
}
case "register":
{
target := channel.client.Channel(channel.name)
if target != nil {
me, ok := target.UserList().User(channel.client.Nick())
if !ok || !strings.ContainsRune(me.Modes, 'o') {
channel.client.Say(channel.name, "This unit has insufficient privileges.")
break
}
chanServNick := config.Get().Names.ChanServ
if chanServNick == "" {
channel.client.Say(channel.name, "This function is not enabled.")
break
}
channel.client.Sayf(chanServNick, "REGISTER %s", target.Name())
}
}
}
} else {
queue = append(queue, post)
if post.Time.After(channel.lastPostTime) {
channel.lastPostTime = post.Time
}
}
// Posts after here aren't going to be bot commands, so log its reception.
log.Printf("Received %s post from %s", post.Kind, post.Nick)
// Stop here if there's nothing to post.
if len(queue) == 0 {
break
}
// Buffer up posts close to one another.
deadline := time.After(time.Second * 3)
buffering := true
for buffering {
select {
case post := <-channel.ch:
{
queue = append(queue, post)
}
case <-deadline:
{
buffering = false
}
}
}
// Select session.
session, err := logs.FindOpen(channel.parentCtx, channel.name)
if err == logs.ErrNoneOpen {
eventName := ""
channelData, err := channels.Find(channel.parentCtx, channel.name)
if err == nil {
eventName = channelData.EventName
}
session, err = logs.Add(channel.parentCtx, channel.name, queue[0].Time, true, eventName)
if err != nil {
channel.client.Say(channel.name, "This unit failed to open session: "+err.Error())
log.Println("Failed to open session:", err)
}
} else if err != nil {
channel.client.Say(channel.name, "This unit is unable to check active sessions: "+err.Error())
break
}
log.Println("Selected session:", session.ID)
// Remember which session was last posted to.
channel.lastPostSessionID = session.ID
// Post posts
lastSuccess := -1
for i, channelPost := range queue {
post, err := posts.Add(channel.parentCtx, session, channelPost.Time, channelPost.Kind, channelPost.Nick, channelPost.Text)
if err != nil {
log.Println("Failed to post:", err)
break
}
summary := ""
for _, ru := range post.Text {
summary += string(ru)
if len(summary) > 30 {
summary += "..."
break
}
}
log.Printf("Posted (id=%s, kind=%s, nick=%s, delay=%s): %s", post.ID, post.Kind, post.Nick, time.Since(post.Time), summary)
lastSuccess = i
}
if lastSuccess >= 0 {
copy(queue, queue[lastSuccess:])
queue = queue[:len(queue)-(lastSuccess+1)]
}
}
case now := <-minutely.C:
if !channel.lastPostTime.IsZero() && now.Sub(channel.lastPostTime) > (time.Hour*2) {
session, err := logs.FindOpen(channel.parentCtx, channel.name)
if err == logs.ErrNoneOpen {
log.Println(channel.name, "Log already closed.")
channel.lastPostTime = time.Time{}
channel.lastPostSessionID = ""
break
} else if err != nil {
log.Println(channel.name, "Could not find session:", err)
break
}
if session.ID != channel.lastPostSessionID {
log.Println("Aborted auto-close in", channel.name, "due to session change.")
channel.lastPostTime = time.Time{}
channel.lastPostSessionID = ""
break
}
if now.Sub(session.LatestTime()) < (time.Hour * 2) {
log.Println("Aborted auto-close in", channel.name, "due to session being more recent.")
channel.lastPostTime = session.LatestTime()
break
}
_, err = logs.SetOpen(channel.parentCtx, session, false)
if err != nil {
log.Println("Could not set open:", err)
break
}
channel.client.Sayf(channel.name, "Log session closed after 2+ hours of inactivity. See log at https://aiterp.net/logs/%s", channel.lastPostSessionID)
channel.lastPostTime = time.Time{}
channel.lastPostSessionID = ""
}
case <-channel.ctx.Done():
{
// Time to pack up shop.
return
}
}
}
}
func (channel *Channel) wait(ctx context.Context) error {
select {
case <-ctx.Done():
return ctx.Err()
case <-channel.ctx.Done():
return nil
}
}
// A ChannelPost is a post made to a channel.
type ChannelPost struct {
Kind string
Time time.Time
Nick string
Text string
Account string
}
func (post *ChannelPost) botCommand() *botCommand {
if !strings.HasPrefix(post.Text, "!") {
return nil
}
split := strings.SplitN(post.Text, " ", 2)
if len(split) == 1 {
return &botCommand{Verb: strings.ToLower(split[0][1:]), Text: ""}
}
return &botCommand{Verb: strings.ToLower(split[0][1:]), Text: split[1]}
}
type botCommand struct {
Verb string
Text string
}