Let people other than me set/unset their Last.fm username

internal/app/modlastfm/command/artist.go

@@ -7,7 +7,7 @@ import (
 	"github.com/n7st/lastfm-go/lastfm"
 )
 
-func (f *Fn) ArtistInfo(artist string) string {
+func (f *Fn) ArtistInfo(artist string, nickname string) string {
 	artistInfo, err := f.getArtistInfo(artist)
 
 	if err != nil {
@@ -19,7 +19,7 @@ func (f *Fn) ArtistInfo(artist string) string {
 
 // returns a comma separated list of tags, e.g.:
 // death metal, old school death metal, danish, breakbeat, seen live
-func (f *Fn) GetArtistTags(artist string) string {
+func (f *Fn) GetArtistTags(artist string, nickname string) string {
 	var tags = "no tags"
 
 	res, err := f.getArtistInfo(artist)

internal/app/modlastfm/command/init.go

@@ -12,7 +12,7 @@ import (
 
 type (
 	FnCommand     func(message string, username string) string
-	OpenFnCommand func(message string) string
+	OpenFnCommand func(message string, nickname string) string
 )
 
 type Fn struct {

internal/app/modlastfm/command/user.go

@@ -14,18 +14,22 @@ const (
 	noTopArtistsForPeriodF = "%s has no listening data for this period"
 )
 
-func (f *Fn) SetUser(message string) string {
+func (f *Fn) SetUser(message string, nickname string) string {
 	var err error
 
 	if message == "" {
-		err = f.Store.RemoveAssociatedUser("Mike")
+		err = f.Store.RemoveAssociatedUser(nickname)
+
+		if err != nil {
+			return fmtError(err)
+		}
 
 		return "Last.fm username unset"
 	}
 
 	args := strings.Split(message, " ")
 
-	err = f.Store.SetAssociatedUser("Mike", args[0])
+	err = f.Store.SetAssociatedUser(nickname, args[0])
 
 	if err != nil {
 		return fmtError(err)

internal/app/modlastfm/gauntlet/run.go

@@ -69,7 +69,7 @@ func Run(nickname string, message string, db *store.BoltStore) string {
 	openFnCommand := openCommands[arguments[0]]
 
 	if openFnCommand != nil {
-		return openFnCommand(strings.Join(arguments[1:], " "))
+		return openFnCommand(strings.Join(arguments[1:], " "), nickname)
 	}
 
 	return ""