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bot.go
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bot.go
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package streaming
import (
"github.com/jonas747/discordgo"
"github.com/jonas747/dutil/dstate"
"github.com/jonas747/yagpdb/bot"
"github.com/jonas747/yagpdb/bot/eventsystem"
"github.com/jonas747/yagpdb/common"
"github.com/jonas747/yagpdb/common/pubsub"
"github.com/jonas747/yagpdb/common/templates"
"github.com/mediocregopher/radix.v2/redis"
log "github.com/sirupsen/logrus"
"sync"
)
func KeyCurrentlyStreaming(gID int64) string { return "currently_streaming:" + discordgo.StrID(gID) }
func (p *Plugin) InitBot() {
eventsystem.AddHandler(bot.ConcurrentEventHandler(bot.RedisWrapper(HandleGuildCreate)), eventsystem.EventGuildCreate)
eventsystem.AddHandler(bot.RedisWrapper(HandlePresenceUpdate), eventsystem.EventPresenceUpdate)
eventsystem.AddHandler(bot.RedisWrapper(HandleGuildMemberUpdate), eventsystem.EventGuildMemberUpdate)
}
var _ bot.BotStarterHandler = (*Plugin)(nil)
func (p *Plugin) StartBot() {
pubsub.AddHandler("update_streaming", HandleUpdateStreaming, nil)
}
// YAGPDB event
func HandleUpdateStreaming(event *pubsub.Event) {
log.Info("Received the streaming event boi ", event.TargetGuild)
client, err := common.RedisPool.Get()
if err != nil {
log.WithError(err).Error("Failed retrieving redis connection from pool")
return
}
defer common.RedisPool.Put(client)
gs := bot.State.Guild(true, event.TargetGuildInt)
if gs == nil {
log.WithField("guild", event.TargetGuild).Error("Guild not found in state")
return
}
config, err := GetConfig(client, gs.ID())
if err != nil {
log.WithError(err).WithField("guild", gs.ID()).Error("Failed retrieving streaming config")
}
gs.RLock()
var wg sync.WaitGroup
slowCheck := make([]*dstate.MemberState, 0, len(gs.Members))
for _, ms := range gs.Members {
if ms.Member == nil || ms.Presence == nil {
if ms.Presence != nil {
slowCheck = append(slowCheck, ms)
wg.Add(1)
go func(gID, uID int64) {
bot.GetMember(gID, uID)
wg.Done()
}(gs.ID(), ms.ID())
}
continue
}
err = CheckPresence(client, config, ms.Presence, ms.Member, gs)
if err != nil {
log.WithError(err).Error("Error checking presence")
continue
}
}
gs.RUnlock()
wg.Wait()
log.WithField("guild", gs.ID()).Info("Starting slowcheck")
gs.RLock()
for _, ms := range slowCheck {
if ms.Member == nil || ms.Presence == nil {
continue
}
err = CheckPresence(client, config, ms.Presence, ms.Member, gs)
if err != nil {
log.WithError(err).Error("Error checking presence")
continue
}
}
gs.RUnlock()
log.WithField("guild", gs.ID()).Info("Done slowcheck")
}
func HandleGuildMemberUpdate(evt *eventsystem.EventData) {
client := bot.ContextRedis(evt.Context())
m := evt.GuildMemberUpdate
config, err := GetConfig(client, m.GuildID)
if err != nil {
log.WithError(err).Error("Failed retrieving streaming config")
return
}
gs := bot.State.Guild(true, m.GuildID)
if gs == nil {
log.WithField("guild", m.GuildID).Error("Guild not found in state")
return
}
ms := gs.Member(true, m.User.ID)
if ms == nil {
log.WithField("guild", m.GuildID).Error("Member not found in state")
return
}
gs.RLock()
defer gs.RUnlock()
if ms.Presence == nil {
log.WithField("guild", m.GuildID).Warn("Presence not found in state")
return
}
err = CheckPresence(client, config, ms.Presence, m.Member, gs)
if err != nil {
log.WithError(err).Error("Failed checking presence")
}
}
func HandleGuildCreate(evt *eventsystem.EventData) {
client := bot.ContextRedis(evt.Context())
g := evt.GuildCreate
config, err := GetConfig(client, g.ID)
if err != nil {
log.WithError(err).Error("Failed retrieving streaming config")
return
}
gs := bot.State.Guild(true, g.ID)
if gs == nil {
log.WithField("guild", g.ID).Error("Guild not found in state")
return
}
gs.RLock()
defer gs.RUnlock()
for _, p := range g.Presences {
var member *discordgo.Member
for _, v := range g.Members {
if v.User.ID == p.User.ID {
member = v
}
}
if member == nil {
log.Error("No member found")
continue
}
err = CheckPresence(client, config, p, member, gs)
if err != nil {
log.WithError(err).Error("Failed checking presence")
}
}
}
func HandlePresenceUpdate(evt *eventsystem.EventData) {
client := bot.ContextRedis(evt.Context())
p := evt.PresenceUpdate
config, err := GetConfig(client, p.GuildID)
if err != nil {
log.WithError(err).Error("Failed retrieving streaming config")
return
}
gs := bot.State.Guild(true, p.GuildID)
if gs == nil {
log.WithField("guild", p.GuildID).Error("Failed retrieving guild from state")
return
}
// member, _ := bot.GetMember(gs.ID(), p.User.ID)
gs.RLock()
defer gs.RUnlock()
ms := gs.Member(false, p.User.ID)
var member *discordgo.Member
if ms != nil {
member = ms.Member
}
err = CheckPresence(client, config, &p.Presence, member, gs)
if err != nil {
log.WithError(err).WithField("guild", p.GuildID).Error("Failed checking presence")
}
}
func CheckPresence(client *redis.Client, config *Config, p *discordgo.Presence, member *discordgo.Member, gs *dstate.GuildState) error {
// Now the real fun starts
// Either add or remove the stream
if p.Status != "offline" && p.Game != nil && p.Game.URL != "" {
// Streaming
// Only do these checks here to ensure we cleanup the user from the streaming set
// even if the plugin was disabled or the user ended up on the ignored roles
if !config.Enabled {
RemoveStreaming(client, config, gs.ID(), p.User.ID, member)
return nil
}
if member == nil {
// Member is required from on here
var err error
gs.RUnlock()
member, err = bot.GetMember(gs.ID(), p.User.ID)
gs.RLock()
if err != nil {
return err
}
}
if config.RequireRole != 0 {
found := false
for _, role := range member.Roles {
if role == config.RequireRole {
found = true
break
}
}
// Dosen't the required role
if !found {
RemoveStreaming(client, config, gs.ID(), p.User.ID, member)
return nil
}
}
if config.IgnoreRole != 0 {
for _, role := range member.Roles {
// We ignore people with this role.. :')
if role == config.IgnoreRole {
RemoveStreaming(client, config, gs.ID(), p.User.ID, member)
return nil
}
}
}
if config.GiveRole != 0 {
err := GiveStreamingRole(member, config.GiveRole, gs.Guild)
if err != nil && !common.IsDiscordErr(err, discordgo.ErrCodeMissingPermissions, discordgo.ErrCodeUnknownRole) {
log.WithError(err).WithField("guild", gs.ID()).WithField("user", member.User.ID).Error("Failed adding streaming role")
client.Cmd("SREM", KeyCurrentlyStreaming(gs.ID()), member.User.ID)
}
}
// Was already marked as streaming before if we added 0 elements
if num, _ := client.Cmd("SADD", KeyCurrentlyStreaming(gs.ID()), member.User.ID).Int(); num == 0 {
return nil
}
// Send the streaming announcement if enabled
if config.AnnounceChannel != 0 && config.AnnounceMessage != "" {
SendStreamingAnnouncement(client, config, gs, member, p)
}
} else {
// Not streaming
RemoveStreaming(client, config, gs.ID(), p.User.ID, member)
}
return nil
}
func RemoveStreaming(client *redis.Client, config *Config, guildID int64, userID int64, member *discordgo.Member) {
if member != nil {
RemoveStreamingRole(member, config.GiveRole, guildID)
client.Cmd("SREM", KeyCurrentlyStreaming(guildID), userID)
} else {
// Was not streaming before if we removed 0 elements
if n, _ := client.Cmd("SREM", KeyCurrentlyStreaming(guildID), userID).Int(); n > 0 && config.GiveRole != 0 {
common.BotSession.GuildMemberRoleRemove(guildID, userID, config.GiveRole)
}
}
}
func SendStreamingAnnouncement(client *redis.Client, config *Config, guild *dstate.GuildState, member *discordgo.Member, p *discordgo.Presence) {
foundChannel := false
for _, v := range guild.Channels {
if v.ID() == config.AnnounceChannel {
foundChannel = true
}
}
if !foundChannel {
log.WithField("guild", guild.ID()).WithField("channel", config.AnnounceChannel).Warn("Channel not found in state, not sending streaming announcement")
return
}
ctx := templates.NewContext(bot.State.User(true).User, guild, nil, member)
ctx.Data["URL"] = common.EscapeSpecialMentions(p.Game.URL)
ctx.Data["url"] = common.EscapeSpecialMentions(p.Game.URL)
guild.RUnlock()
out, err := ctx.Execute(client, config.AnnounceMessage)
guild.RLock()
if err != nil {
log.WithError(err).WithField("guild", guild.ID()).Warn("Failed executing template")
return
}
common.BotSession.ChannelMessageSend(config.AnnounceChannel, out)
}
func GiveStreamingRole(member *discordgo.Member, role int64, guild *discordgo.Guild) error {
// Ensure the role exists
found := false
for _, v := range guild.Roles {
if v.ID == role {
found = true
break
}
}
if !found {
return nil
}
err := common.AddRole(member, role, guild.ID)
return err
}
func RemoveStreamingRole(member *discordgo.Member, role int64, guildID int64) {
if role == 0 {
return
}
err := common.RemoveRole(member, role, guildID)
if err != nil && !common.IsDiscordErr(err, discordgo.ErrCodeMissingPermissions, discordgo.ErrCodeUnknownRole, discordgo.ErrCodeMissingAccess) {
log.WithError(err).WithField("guild", guildID).WithField("user", member.User.ID).WithField("role", role).Error("Failed removing streaming role")
}
}