feat: add album data scraper

parsers/album.go

@@ -0,0 +1,60 @@
+package parsers
+
+import (
+	"strings"
+	"sync"
+
+	"github.com/ghoshRitesh12/brooktube/helpers"
+	"github.com/ghoshRitesh12/brooktube/models/album"
+	"github.com/ghoshRitesh12/brooktube/requests"
+	"github.com/ghoshRitesh12/brooktube/utils"
+)
+
+const ALBUM_SCRAPE_OPERATIONS int = 2
+
+func (p *YTMusicAPI) GetAlbum(albumId string) (*album.ScrapedData, error) {
+	wg := &sync.WaitGroup{}
+	result := &album.ScrapedData{}
+	albumBrowseId := ""
+
+	if strings.HasPrefix(albumId, "MPREb_") {
+		albumBrowseId = albumId
+	} else {
+		browseId, err := helpers.GetAlbumBrowseId(albumId)
+		if err != nil {
+			return nil, err
+		}
+		albumBrowseId = browseId
+	}
+
+	if albumBrowseId == "" {
+		return nil, utils.ErrInvalidAlbumBrowseId
+	}
+
+	data, err := requests.FetchAlbum(albumBrowseId)
+	if err != nil {
+		return nil, err
+	}
+
+	outerContents := data.Contents.
+		SingleColumnBrowseResultsRenderer.Tabs[0].
+		TabRenderer.Content.SectionListRenderer.Contents
+	if len(outerContents) < 1 {
+		return nil, utils.ErrAlbumContentsNotFound
+	}
+
+	sections := &(outerContents[0].MusicShelfRenderer.Contents)
+
+	if len(*sections) == 0 {
+		return result, nil
+	}
+
+	wg.Add(ALBUM_SCRAPE_OPERATIONS)
+
+	go result.ScrapeAndSetBasicInfo(wg, &data.Header)
+	go result.Songs.ScrapeAndSet(wg, sections)
+
+	wg.Wait()
+
+	return result, nil
+}