/
bot.go
408 lines (332 loc) · 8.89 KB
/
bot.go
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package discord
import (
"context"
"database/sql"
"fmt"
"slices"
"sync"
"sync/atomic"
"time"
"github.com/bwmarrin/discordgo"
"github.com/galexrt/fivenet/pkg/config"
"github.com/galexrt/fivenet/pkg/discord/commands"
"github.com/galexrt/fivenet/pkg/mstlystcdata"
"github.com/galexrt/fivenet/pkg/server/admin"
"github.com/galexrt/fivenet/query/fivenet/table"
jet "github.com/go-jet/jet/v2/mysql"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
"github.com/puzpuzpuz/xsync/v3"
tracesdk "go.opentelemetry.io/otel/sdk/trace"
"go.opentelemetry.io/otel/trace"
"go.uber.org/fx"
"go.uber.org/multierr"
"go.uber.org/zap"
)
var (
tJobProps = table.FivenetJobProps.AS("jobprops")
)
func wrapLogger(log *zap.Logger) *zap.Logger {
return log.Named("discord_bot")
}
var BotModule = fx.Module("discord_bot",
fx.Provide(
NewBot,
),
fx.Decorate(wrapLogger),
)
var (
lastSync = promauto.NewGaugeVec(prometheus.GaugeOpts{
Namespace: admin.MetricsNamespace,
Subsystem: "discord_bot",
Name: "last_sync",
Help: "Last time sync has completed.",
}, []string{"job", "status"})
)
type BotParams struct {
fx.In
LC fx.Lifecycle
Logger *zap.Logger
TP *tracesdk.TracerProvider
DB *sql.DB
Enricher *mstlystcdata.Enricher
Config *config.Config
}
type Bot struct {
ctx context.Context
logger *zap.Logger
tracer trace.Tracer
db *sql.DB
enricher *mstlystcdata.Enricher
cfg *config.DiscordBot
syncInterval time.Duration
cmds *commands.Cmds
wg sync.WaitGroup
id string
discord *discordgo.Session
activeGuilds *xsync.MapOf[string, *Guild]
}
func NewBot(p BotParams) (*Bot, error) {
if !p.Config.Discord.Bot.Enabled {
return nil, nil
}
// Create a new Discord session using the provided login information.
discord, err := discordgo.New("Bot " + p.Config.Discord.Bot.Token)
if err != nil {
return nil, fmt.Errorf("error creating discord session. %w", err)
}
discord.Identify.Intents = discordgo.IntentsAllWithoutPrivileged | discordgo.IntentsGuilds | discordgo.IntentsGuildMembers | discordgo.IntentsGuildPresences
cmds, err := commands.New(p.Logger, discord, p.Config)
if err != nil {
return nil, fmt.Errorf("error creating commands for discord bot. %w", err)
}
ctx, cancel := context.WithCancel(context.Background())
b := &Bot{
ctx: ctx,
logger: p.Logger,
tracer: p.TP.Tracer("discord_bot"),
db: p.DB,
enricher: p.Enricher,
cfg: &p.Config.Discord.Bot,
syncInterval: p.Config.Discord.Bot.SyncInterval,
cmds: cmds,
wg: sync.WaitGroup{},
discord: discord,
activeGuilds: xsync.NewMapOf[string, *Guild](),
}
p.LC.Append(fx.StartHook(func(ctx context.Context) error {
if err := b.start(ctx); err != nil {
return err
}
go func() {
b.Sync()
}()
return nil
}))
p.LC.Append(fx.StopHook(func(ctx context.Context) error {
// Stop all guilds and discord session
if err := b.stop(); err != nil {
return err
}
cancel()
return nil
}))
return b, nil
}
func (b *Bot) start(ctx context.Context) error {
var ready atomic.Bool
b.discord.AddHandler(func(discord *discordgo.Session, r *discordgo.Ready) {
b.logger.Info(fmt.Sprintf("Ready with %d guilds", len(r.Guilds)))
ready.Store(true)
})
b.discord.AddHandler(func(s *discordgo.Session, i *discordgo.GuildCreate) {
b.logger.Info("discord server joined", zap.String("discord_guild_id", i.ID))
if err := b.cmds.RemoveGuildCommands(i.ID); err != nil {
b.logger.Error("failed to remove guild commands", zap.Error(err))
}
})
if err := b.discord.Open(); err != nil {
return fmt.Errorf("error opening connection: %w", err)
}
if b.cfg.Commands.Enabled {
if err := b.cmds.RegisterGlobalCommands(); err != nil {
return fmt.Errorf("failed to register global commands. %w", err)
}
}
for {
if b.discord.State.Ready.Version > 0 && ready.Load() {
return b.setBotPresence()
}
select {
case <-ctx.Done():
return fmt.Errorf("discord client failed to get ready, version %d", b.discord.State.Version)
case <-time.After(750 * time.Millisecond):
}
}
}
func (b *Bot) setBotPresence() error {
if b.cfg.Presence.GameStatus != nil {
if err := b.discord.UpdateGameStatus(0, *b.cfg.Presence.GameStatus); err != nil {
return err
}
} else if b.cfg.Presence.ListeningStatus != nil {
if err := b.discord.UpdateListeningStatus(*b.cfg.Presence.ListeningStatus); err != nil {
return err
}
} else if b.cfg.Presence.StreamingStatus != nil {
url := ""
if b.cfg.Presence.StreamingStatusUrl != nil {
url = *b.cfg.Presence.StreamingStatusUrl
}
if err := b.discord.UpdateStreamingStatus(0, *b.cfg.Presence.StreamingStatus, url); err != nil {
return err
}
} else if b.cfg.Presence.WatchStatus != nil {
if err := b.discord.UpdateWatchStatus(0, *b.cfg.Presence.WatchStatus); err != nil {
return err
}
}
b.logger.Info("bot presence has been set")
return nil
}
func (b *Bot) refreshBotGuilds() error {
usr, err := b.discord.User("@me")
if err != nil {
return fmt.Errorf("error obtaining account details: %w", err)
}
b.id = usr.ID
return nil
}
func (b *Bot) Sync() error {
b.logger.Info("sleeping 5 seconds before running first discord sync")
time.Sleep(5 * time.Second)
func() {
ctx, span := b.tracer.Start(b.ctx, "discord_bot")
defer span.End()
if err := b.runSync(ctx); err != nil {
b.logger.Error("failed to sync roles", zap.Error(err))
}
}()
for {
select {
case <-b.ctx.Done():
return nil
case <-time.After(b.syncInterval):
b.logger.Info("running discord sync")
func() {
ctx, span := b.tracer.Start(b.ctx, "discord_bot")
defer span.End()
if err := b.runSync(ctx); err != nil {
b.logger.Error("failed to sync discord", zap.Error(err))
}
}()
}
}
}
// getGuilds Each guild is effectively associated with a Job via the JobProps
func (b *Bot) getGuilds(ctx context.Context) error {
if err := b.refreshBotGuilds(); err != nil {
return err
}
guildsDB, err := b.getJobGuildsFromDB(ctx)
if err != nil {
return err
}
if len(guildsDB) == 0 {
b.logger.Debug("no job discord guild connections found")
return nil
}
for job, guildID := range guildsDB {
var found *discordgo.Guild
if !slices.ContainsFunc(b.discord.State.Ready.Guilds, func(in *discordgo.Guild) bool {
if in.ID == guildID {
found = in
return true
}
return false
}) {
// Make sure to stop any active stuff with the previously active guild
g, ok := b.activeGuilds.Load(guildID)
if ok {
err := g.Stop()
b.activeGuilds.Delete(guildID)
if err != nil {
return err
}
}
continue
}
if found == nil {
return fmt.Errorf("didn't find bot being in guild %s (job: %s)", guildID, job)
}
if _, ok := b.activeGuilds.Load(guildID); ok {
continue
}
g, err := NewGuild(b, found, job)
if err != nil {
return err
}
b.activeGuilds.Store(g.ID, g)
}
return nil
}
func (b *Bot) getJobGuildsFromDB(ctx context.Context) (map[string]string, error) {
stmt := tJobProps.
SELECT(
tJobProps.Job.AS("guild.job"),
tJobProps.DiscordGuildID.AS("guild.id"),
).
FROM(tJobProps).
WHERE(
tJobProps.DiscordGuildID.IS_NOT_NULL(),
)
var dest []*Guild
if err := stmt.QueryContext(ctx, b.db, &dest); err != nil {
return nil, err
}
guilds := map[string]string{}
for _, g := range dest {
guilds[g.Job] = g.ID
}
return guilds, nil
}
func (b *Bot) runSync(ctx context.Context) error {
if err := b.getGuilds(ctx); err != nil {
return err
}
errs := multierr.Combine()
// TODO make sure to not run to many syncs at the same time
b.activeGuilds.Range(func(_ string, guild *Guild) bool {
b.wg.Add(1)
go func() {
defer b.wg.Done()
logger := b.logger.With(zap.String("job", guild.Job), zap.String("discord_guild_id", guild.ID))
if err := guild.Run(); err != nil {
logger.Error("error during sync", zap.Error(err))
errs = multierr.Append(errs, err)
lastSync.WithLabelValues(guild.Job, "failed").SetToCurrentTime()
} else {
lastSync.WithLabelValues(guild.Job, "success").SetToCurrentTime()
}
if err := b.setLastSyncTime(ctx, guild.Job); err != nil {
logger.Error("error setting job props last sync time", zap.Error(err))
errs = multierr.Append(errs, err)
}
}()
return true
})
b.wg.Wait()
return errs
}
func (b *Bot) stop() error {
var e error
b.activeGuilds.Range(func(key string, guild *Guild) bool {
if err := guild.Stop(); err != nil {
e = err
return false
}
return true
})
b.activeGuilds.Clear()
if e != nil {
return e
}
return b.discord.Close()
}
func (b *Bot) setLastSyncTime(ctx context.Context, job string) error {
tJobProps := table.FivenetJobProps
stmt := tJobProps.
UPDATE(
tJobProps.DiscordLastSync,
).
SET(
tJobProps.DiscordLastSync.SET(jet.CURRENT_TIMESTAMP()),
).
WHERE(
tJobProps.Job.EQ(jet.String(job)),
)
if _, err := stmt.ExecContext(ctx, b.db); err != nil {
return err
}
return nil
}