feat: add lastfm route and workers

internal/service/lastfm.go

@@ -0,0 +1,55 @@
+package service
+
+import (
+	"backend/internal/model"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+	"os"
+)
+
+func GetLastFMData() model.LastFMData {
+	data := model.LastFMData{
+		Song:    "api error",
+		Artist:  "???",
+		Image:   "/missing.webp",
+		Url:     "https://www.last.fm/user/axolotlmaid" + os.Getenv("LASTFM_USERNAME"),
+		Playing: false,
+	}
+
+	url := fmt.Sprintf("http://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&user=%s&api_key=%s&format=json&limit=1", os.Getenv("LASTFM_USERNAME"), os.Getenv("LASTFM_API_KEY"))
+	res, err := http.Get(url)
+	if err != nil {
+		slog.Error("Error requesting last.fm API", slog.Any("error", err))
+		return data
+	}
+
+	body, err := io.ReadAll(res.Body)
+	if err != nil {
+		slog.Error("Error reading body", slog.Any("error", err))
+		return data
+	}
+
+	var lastfmJSON model.LastFMAPI
+
+	err = json.Unmarshal(body, &lastfmJSON)
+	if err != nil {
+		slog.Error("Error unmarshalling JSON", slog.Any("error", err))
+		return data
+	}
+
+	lastfmData := lastfmJSON.RecentTracks.TrackList[0]
+
+	if lastfmData.Attributes != nil {
+		data.Playing = true
+	}
+
+	data.Song = lastfmData.Name
+	data.Artist = lastfmData.Artist.Text
+	data.Image = lastfmData.Image[2].Text
+	data.Url = lastfmData.Url
+
+	return data
+}