feat: add artist page

data/artist.go

@@ -0,0 +1,65 @@
+package data
+
+import (
+	"encoding/json"
+	"strings"
+
+	"github.com/PuerkitoBio/goquery"
+)
+
+type ArtistPreview struct {
+	Name string
+	URL  string
+}
+
+type Artist struct {
+	Name        string
+	Description string
+	Albums      []AlbumPreview
+	Image       string
+}
+
+type artistMetadata struct {
+	Artist struct {
+		Id          int    `json:"id"`
+		Name        string `json:"name"`
+		Description string `json:"description_preview"`
+		Image       string `json:"image_url"`
+	}
+	Albums []struct {
+		Id    int    `json:"id"`
+		Image string `json:"cover_art_thumbnail_url"`
+		Name  string `json:"name"`
+		URL   string `json:"url"`
+	} `json:"artist_albums"`
+}
+
+func (a *Artist) parseArtistData(doc *goquery.Document) error {
+	pageMetadata, exists := doc.Find("meta[itemprop='page_data']").Attr("content")
+	if !exists {
+		return nil
+	}
+
+	var artistMetadataFromPage artistMetadata
+	if err := json.Unmarshal([]byte(pageMetadata), &artistMetadataFromPage); err != nil {
+		return err
+	}
+
+	a.Name = artistMetadataFromPage.Artist.Name
+	a.Description = artistMetadataFromPage.Artist.Description
+	a.Image = artistMetadataFromPage.Artist.Image
+
+	for _, album := range artistMetadataFromPage.Albums {
+		a.Albums = append(a.Albums, AlbumPreview{
+			Name:  album.Name,
+			Image: album.Image,
+			URL:   strings.Replace(album.URL, "https://genius.com", "", -1),
+		})
+	}
+
+	return nil
+}
+
+func (a *Artist) Parse(doc *goquery.Document) error {
+	return a.parseArtistData(doc)
+}