From d507bfafa079a5910ee98350837f62b465d55722 Mon Sep 17 00:00:00 2001
From: lyx0 <66651385+lyx0@users.noreply.github.com>
Date: Sat, 4 Mar 2023 17:58:44 +0000
Subject: [PATCH] add command looking up a users recently played last.fm track

---
 cmd/bot/commands.go         | 14 +++++++
 internal/commands/lastfm.go | 76 +++++++++++++++++++++++++++++++++++++
 2 files changed, 90 insertions(+)
 create mode 100644 internal/commands/lastfm.go

diff --git a/cmd/bot/commands.go b/cmd/bot/commands.go
index 45be700..fbe8da4 100644
--- a/cmd/bot/commands.go
+++ b/cmd/bot/commands.go
@@ -153,6 +153,20 @@ func (app *Application) handleCommand(message twitch.PrivateMessage) {
 			return
 		}
 
+	case "lastfm":
+		if msgLen == 1 {
+			common.Send(target, "Usage: ()firstline <channel> <user>", app.TwitchClient)
+			return
+		} else if cmdParams[1] == "artist" && cmdParams[2] == "top" {
+			commands.LastFmArtistTop(target, message, app.TwitchClient)
+			return
+		} else {
+			// Default to first argument supplied being the name
+			// of the user to look up recently played.
+			commands.LastFmUserRecent(target, cmdParams[1], app.TwitchClient)
+			return
+		}
+
 	case "help":
 		if msgLen == 1 {
 			common.Send(target, "Provides information for a given command. Usage: ()help <commandname>", app.TwitchClient)
diff --git a/internal/commands/lastfm.go b/internal/commands/lastfm.go
new file mode 100644
index 0000000..fb7a7bd
--- /dev/null
+++ b/internal/commands/lastfm.go
@@ -0,0 +1,76 @@
+package commands
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/gempir/go-twitch-irc/v3"
+	"github.com/joho/godotenv"
+	"github.com/lyx0/nourybot/internal/common"
+	"github.com/shkh/lastfm-go/lastfm"
+	"go.uber.org/zap"
+)
+
+func LastFmArtistTop(target string, message twitch.PrivateMessage, tc *twitch.Client) {
+	sugar := zap.NewExample().Sugar()
+	defer sugar.Sync()
+	// snipLength is the length we need to "snip" off of the start
+	// of `message` to only have the artists name left.
+	//  `()lastfm artist top` = +20
+	//  trailing space =  +1
+	//      zero-based =  +1
+	//                 =  22
+	snipLength := 20
+
+	artist := message.Message[snipLength:len(message.Message)]
+
+	err := godotenv.Load()
+	if err != nil {
+		sugar.Error("Error loading OpenWeatherMap API key from .env file")
+	}
+	apiKey := os.Getenv("LAST_FM_API_KEY")
+	apiSecret := os.Getenv("LAST_FM_SECRET")
+
+	api := lastfm.New(apiKey, apiSecret)
+	result, _ := api.Artist.GetTopTracks(lastfm.P{"artist": artist}) //discarding error
+	for _, track := range result.Tracks {
+		sugar.Infow("Top tracks: ",
+			"artist:", artist,
+			"track", track.Name,
+		)
+	}
+}
+
+func LastFmUserRecent(target, user string, tc *twitch.Client) {
+	sugar := zap.NewExample().Sugar()
+	defer sugar.Sync()
+
+	err := godotenv.Load()
+	if err != nil {
+		sugar.Error("Error loading LASTFM API keys from .env file")
+	}
+
+	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 {
+			sugar.Infow("Most recent: ",
+				"user:", user,
+				"track", track.Name,
+				"artist", track.Artist.Name,
+			)
+
+			reply = fmt.Sprintf("Most recently played track for user %v: %v - %v", user, track.Artist.Name, track.Name)
+			common.Send(target, reply, tc)
+			return
+		}
+	}
+
+}