Discord: Try to avoid more race conditions

also added RACE=on to Makefile to enable go's race detector.

Makefile

@@ -52,6 +52,13 @@ else
 	TYPECHECK :=
 endif
 
+RACE ?= off
+ifeq ($(RACE), on)
+	RACEDETECTOR := -race
+else
+	RACEDETECTOR :=
+endif
+
 npm:
 	$(info installing npm dependencies)
 	npm install
@@ -91,7 +98,7 @@ compile:
 	$(GOBINARY) mod download
 	$(info Building)
 	mkdir -p build
-	$(GOBINARY) build -ldflags="$(LDFLAGS)" $(TAGS) -o build/jfa-go
+	$(GOBINARY) build $(RACEDETECTOR) -ldflags="$(LDFLAGS)" $(TAGS) -o build/jfa-go
 
 compress:
 	upx --lzma build/jfa-go

discord.go

@@ -77,11 +77,17 @@ func (d *DiscordDaemon) run() {
 		d.app.err.Printf("Discord: Failed to start daemon: %v", err)
 		return
 	}
-	// Sometimes bot.State isn't populated quick enough
+	// Wait for everything to populate, it's slow sometimes.
 	for d.bot.State == nil {
 		continue
 	}
+	for d.bot.State.User == nil {
+		continue
+	}
 	d.username = d.bot.State.User.Username
+	for d.bot.State.Guilds == nil {
+		continue
+	}
 	// Choose the last guild (server), for now we don't really support multiple anyway
 	d.guildID = d.bot.State.Guilds[len(d.bot.State.Guilds)-1].ID
 	guild, err := d.bot.Guild(d.guildID)