Add more validation to register

Signed-off-by: Etzelia <etzelia@hotmail.com>

discord/register.go

@@ -25,21 +25,44 @@ func init() {
 			manager := mcm.NewMCM(cmd.config.MCMToken, cmd.config.MCMURL)
 			models := manager.NewModel()
 
+			players, err := models.Player(models.NewDjangoBuilder().IExact(django.PlayerUsername, args[1]))
+			if err != nil {
+				return err
+			}
+
 			apps, err := models.Application(models.NewDjangoBuilder().IExact(django.ApplicationUsername, args[1]))
 			if err != nil {
 				return err
 			}
 
+			var nickname string
+			var accepted bool
+			if len(players) > 0 {
+				nickname = players[0].Username
+				if len(apps) > 0 {
+					accepted = apps[0].Accepted
+				} else {
+					apps, err = models.Application(models.NewDjangoBuilder().Exact(django.ApplicationID, fmt.Sprintf("%d", players[0].ApplicationID)))
 					if len(apps) == 0 {
-				return errors.New("no application found with that username")
+						return errors.New("something hecked up, please contact staff")
+					}
+					accepted = apps[0].Accepted
+				}
+			} else if len(apps) > 0 {
+				accepted = apps[0].Accepted
+				if accepted {
+					return errors.New("please join the server and then re-try this command")
+				}
+			} else {
+				return errors.New("no player or applications found for that username")
 			}
 
-			if !apps[0].Accepted {
+			if !accepted {
 				return errors.New("sorry, your application was denied")
 			}
 
 			// Accepted
-			if err := cmd.session.GuildMemberNickname(cmd.message.GuildID, cmd.message.Author.ID, apps[0].Username); err != nil {
+			if err := cmd.session.GuildMemberNickname(cmd.message.GuildID, cmd.message.Author.ID, nickname); err != nil {
 				return err
 			}
 			if err := cmd.session.GuildMemberRoleAdd(cmd.message.GuildID, cmd.message.Author.ID, cmd.config.RegisterRole); err != nil {