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plugin_bot.go
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plugin_bot.go
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package notifications
import (
"fmt"
"github.com/jonas747/discordgo"
"github.com/jonas747/dstate"
"github.com/jonas747/yagpdb/bot"
"github.com/jonas747/yagpdb/bot/eventsystem"
"github.com/jonas747/yagpdb/common"
"github.com/jonas747/yagpdb/common/templates"
log "github.com/sirupsen/logrus"
"math/rand"
"strings"
)
var _ bot.BotInitHandler = (*Plugin)(nil)
func (p *Plugin) BotInit() {
eventsystem.AddHandler(HandleGuildMemberAdd, eventsystem.EventGuildMemberAdd)
eventsystem.AddHandler(HandleGuildMemberRemove, eventsystem.EventGuildMemberRemove)
eventsystem.AddHandlerBefore(HandleChannelUpdate, eventsystem.EventChannelUpdate, bot.StateHandlerPtr)
}
func HandleGuildMemberAdd(evtData *eventsystem.EventData) {
evt := evtData.GuildMemberAdd()
config := GetConfig(evt.GuildID)
if !config.JoinServerEnabled && !config.JoinDMEnabled {
return
}
if (!config.JoinDMEnabled || evt.User.Bot) && !config.JoinServerEnabled {
return
}
gs := bot.State.Guild(true, evt.GuildID)
ms := gs.MemberCopy(true, evt.User.ID)
// Beware of the pyramid and its curses
if config.JoinDMEnabled && !evt.User.Bot {
cid, err := common.BotSession.UserChannelCreate(evt.User.ID)
if err != nil {
log.WithError(err).WithField("user", evt.User.ID).Error("Failed retrieving user channel")
return
}
thinCState := &dstate.ChannelState{
Owner: gs,
Guild: gs,
ID: cid.ID,
Name: evt.User.Username,
Type: discordgo.ChannelTypeDM,
}
sendTemplate(thinCState, config.JoinDMMsg, ms, "join dm")
}
if config.JoinServerEnabled && len(config.JoinServerMsgs) > 0 {
channel := gs.Channel(true, config.JoinServerChannelInt())
if channel == nil {
return
}
chanMsg := config.JoinServerMsgs[rand.Intn(len(config.JoinServerMsgs))]
sendTemplate(channel, chanMsg, ms, "join server msg")
}
}
func HandleGuildMemberRemove(evt *eventsystem.EventData) {
memberRemove := evt.GuildMemberRemove()
config := GetConfig(memberRemove.GuildID)
if !config.LeaveEnabled || len(config.LeaveMsgs) == 0 {
return
}
gs := bot.State.Guild(true, memberRemove.GuildID)
if gs == nil {
return
}
channel := gs.Channel(true, config.LeaveChannelInt())
if channel == nil {
return
}
ms := dstate.MSFromDGoMember(gs, memberRemove.Member)
chanMsg := config.LeaveMsgs[rand.Intn(len(config.LeaveMsgs))]
sendTemplate(channel, chanMsg, ms, "leave")
}
func sendTemplate(cs *dstate.ChannelState, tmpl string, ms *dstate.MemberState, name string) {
msg, err := templates.NewContext(cs.Guild, cs, ms).Execute(tmpl)
if err != nil {
log.WithError(err).WithField("guild", cs.Guild.ID).Warnf("Failed parsing/executing %s template", name)
return
}
msg = strings.TrimSpace(msg)
if msg == "" {
return
}
if cs.Type == discordgo.ChannelTypeDM {
_, err = common.BotSession.ChannelMessageSend(cs.ID, msg)
if err != nil {
log.WithError(err).WithField("guild", cs.Guild.ID).Error("Failed sending " + name)
}
} else {
bot.QueueMergedMessage(cs.ID, msg)
}
}
func HandleChannelUpdate(evt *eventsystem.EventData) {
cu := evt.ChannelUpdate()
curChannel := bot.State.Channel(true, cu.ID)
if curChannel == nil {
return
}
curChannel.Owner.RLock()
oldTopic := curChannel.Topic
curChannel.Owner.RUnlock()
if oldTopic == cu.Topic {
return
}
config := GetConfig(cu.GuildID)
if !config.TopicEnabled {
return
}
topicChannel := cu.Channel.ID
if config.TopicChannelInt() != 0 {
c := curChannel.Guild.Channel(true, config.TopicChannelInt())
if c != nil {
topicChannel = c.ID
}
}
go func() {
_, err := common.BotSession.ChannelMessageSend(topicChannel, common.EscapeSpecialMentions(fmt.Sprintf("Topic in channel <#%d> changed to **%s**", cu.ID, cu.Topic)))
if err != nil {
log.WithError(err).WithField("guild", cu.GuildID).Warn("Failed sending topic change message")
}
}()
}