check if a user was registered in the database if no argument for lastfm command is provided

cmd/bot/commands.go

@@ -152,10 +152,9 @@ func (app *Application) handleCommand(message twitch.PrivateMessage) {
 			commands.FirstLine(target, cmdParams[1], cmdParams[2], app.TwitchClient)
 			return
 		}
-
 	case "lastfm":
 		if msgLen == 1 {
-			common.Send(target, "Usage: ()firstline <channel> <user>", app.TwitchClient)
+			app.CheckLastFM(message)
 			return
 		} else if cmdParams[1] == "artist" && cmdParams[2] == "top" {
 			commands.LastFmArtistTop(target, message, app.TwitchClient)
@@ -508,12 +507,11 @@ func (app *Application) commandHelp(target, name, username string) {
 			return
 		}
 
-		reply := fmt.Sprintf(c)
+		reply := fmt.Sprint(c)
 		common.Send(target, reply, app.TwitchClient)
 		return
 	}
 
-	reply := fmt.Sprintf("%s", i)
+	reply := fmt.Sprint(i)
 	common.Send(target, reply, app.TwitchClient)
-	return
 }

cmd/bot/lastfm.go

@@ -0,0 +1,36 @@
+package main
+
+import (
+	"github.com/gempir/go-twitch-irc/v3"
+	"github.com/lyx0/nourybot/internal/commands"
+	"github.com/lyx0/nourybot/internal/common"
+	"go.uber.org/zap"
+)
+
+func (app *Application) CheckLastFM(message twitch.PrivateMessage) {
+	sugar := zap.NewExample().Sugar()
+	defer sugar.Sync()
+
+	twitchLogin := message.User.Name
+	sugar.Infow("Twitchlogin: ",
+		"twitchLogin:", twitchLogin,
+	)
+	u, err := app.Models.LastFMUsers.Get(twitchLogin)
+	if err != nil {
+		sugar.Errorw("No LastFM account registered for: ",
+			"twitchLogin:", twitchLogin,
+		)
+		reply := "No lastfm account registered in my database. Use ()register lastfm <username> to register. (Not yet implemented) Otherwise use ()lastfm <username> without registering."
+		common.Send(message.Channel, reply, app.TwitchClient)
+		return
+	}
+
+	target := message.Channel
+	user := u.LastFMUser
+	sugar.Infow("Twitchlogin: ",
+		"twitchLogin:", twitchLogin,
+		"user:", user,
+	)
+
+	commands.LastFmUserRecent(target, user, app.TwitchClient)
+}