add lastfm command

cmd/nourybot/commands.go

@@ -46,6 +46,21 @@ func (app *Application) ParseCommand(evt *event.Event) {
 			}
 		}
 
+	case "lastfm":
+		if msgLen == 1 {
+			app.SendText(evt, "Not enough arguments provided")
+			return
+		} else {
+			if resp, err := commands.LastFmUserRecent(cmdParams[1]); err != nil {
+				app.Log.Error().Err(err).Msg("failed to handle lastfm command")
+				app.SendText(evt, "Something went wrong.")
+				return
+			} else {
+				app.SendText(evt, resp)
+				return
+			}
+		}
+
 	case "phonetic":
 		msg := evt.Content.AsMessage().Body[9:len(evt.Content.AsMessage().Body)]
 		if resp, err := commands.Phonetic(msg); err != nil {

go.mod

@@ -14,6 +14,7 @@ require (
 	github.com/briandowns/openweathermap v0.19.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.18 // indirect
+	github.com/shkh/lastfm-go v0.0.0-20191215035245-89a801c244e0 // indirect
 	github.com/tidwall/gjson v1.14.4 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect

go.sum

@@ -26,6 +26,8 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/rs/xid v1.4.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
 github.com/rs/zerolog v1.29.1 h1:cO+d60CHkknCbvzEWxP0S9K6KqyTjrCNUy1LdQLCGPc=
 github.com/rs/zerolog v1.29.1/go.mod h1:Le6ESbR7hc+DP6Lt1THiV8CQSdkkNrd3R0XbEgp3ZBU=
+github.com/shkh/lastfm-go v0.0.0-20191215035245-89a801c244e0 h1:cgqwZtnR+IQfUYDLJ3Kiy4aE+O/wExTzEIg8xwC4Qfs=
+github.com/shkh/lastfm-go v0.0.0-20191215035245-89a801c244e0/go.mod h1:n3nudMl178cEvD44PaopxH9jhJaQzthSxUzLO5iKMy4=
 github.com/stretchr/testify v1.8.2 h1:+h33VjcLVPDHtOdpUCuF+7gSuG3yGIftsP1YvFihtJ8=
 github.com/tidwall/gjson v1.14.2/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/gjson v1.14.4 h1:uo0p8EbA09J7RQaflQ1aBRffTR7xedD2bcIVSYxLnkM=

internal/commands/lastfm.go

@@ -0,0 +1,33 @@
+package commands
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/joho/godotenv"
+	"github.com/shkh/lastfm-go/lastfm"
+)
+
+func LastFmUserRecent(user string) (string, error) {
+	err := godotenv.Load()
+	if err != nil {
+		return "", ErrInternalServerError
+	}
+
+	apiKey := os.Getenv("LAST_FM_API_KEY")
+	apiSecret := os.Getenv("LAST_FM_SECRET")
+
+	api := lastfm.New(apiKey, apiSecret)
+	result, _ := api.User.GetRecentTracks(lastfm.P{"user": user}) //discarding error
+
+	var reply string
+	for i, track := range result.Tracks {
+		// The 0th result is the most recent one since it goes from most recent
+		// to least recent.
+		if i == 0 {
+			reply = fmt.Sprintf("Most recently played track for user %v: %v - %v", user, track.Artist.Name, track.Name)
+			return reply, nil
+		}
+	}
+	return "", ErrInternalServerError
+}