make all handlers a struct

cmd/bb/main.go

@@ -94,11 +94,11 @@ func main() {
 		log.Fatalf("error creating Discord session: %v\n", err)
 	}
 
-	dg.AddHandler(command.PingHandler)
+	dg.AddHandler(command.NewPingHandler().Handle)
 	dg.AddHandler(reactionHandler)
 	dg.AddHandler(praiseHandler)
-	dg.AddHandler(command.RollHandler)
-	dg.AddHandler(command.RouletteHandler)
+	dg.AddHandler(command.NewRollHandler().Handle)
+	dg.AddHandler(command.NewRouletteHandler().Handle)
 
 	h := command.NewWeatherHandler(C.Handler.Weather)
 	dg.AddHandler(h.Handle)

command/ping.go

@@ -8,7 +8,15 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-func PingHandler(s *discordgo.Session, m *discordgo.MessageCreate) {
+type (
+	PingHandler struct{}
+)
+
+func NewPingHandler() *PingHandler {
+	return new(PingHandler)
+}
+
+func (h *PingHandler) Handle(s *discordgo.Session, m *discordgo.MessageCreate) {
 	if m.Author.ID == s.State.User.ID {
 		return
 	}

command/random.go

@@ -34,7 +34,9 @@ type (
 		N int
 	}
 
-	CoinHandler struct{}
+	CoinHandler     struct{}
+	RollHandler     struct{}
+	RouletteHandler struct{}
 )
 
 var (
@@ -140,7 +142,11 @@ func (g *Gun) IsEmpty() bool {
 	return true
 }
 
-func RollHandler(s *discordgo.Session, m *discordgo.MessageCreate) {
+func NewRollHandler() *RollHandler {
+	return new(RollHandler)
+}
+
+func (h *RollHandler) Handle(s *discordgo.Session, m *discordgo.MessageCreate) {
 	var (
 		err       error
 		msg, roll string
@@ -178,7 +184,11 @@ func RollHandler(s *discordgo.Session, m *discordgo.MessageCreate) {
 	s.ChannelMessageSend(m.ChannelID, msg)
 }
 
-func RouletteHandler(s *discordgo.Session, m *discordgo.MessageCreate) {
+func NewRouletteHandler() *RouletteHandler {
+	return new(RouletteHandler)
+}
+
+func (h *RouletteHandler) Handle(s *discordgo.Session, m *discordgo.MessageCreate) {
 	if m.Author.ID == s.State.User.ID {
 		return
 	}

command/time.go

@@ -14,8 +14,7 @@ type (
 )
 
 func NewTimeHandler() *TimeHandler {
-	var h *TimeHandler = new(TimeHandler)
-	return h
+	return new(TimeHandler)
 }
 
 func (h *TimeHandler) Handle(s *discordgo.Session, m *discordgo.MessageCreate) {