Merge pull request #19 from goulinkh/feat_rss_with_offset

Closes #14

Author: goulinkh

.gitignore

@@ -7,6 +7,7 @@
 
 # binary
 podcast-cli
+main
 
 # Test binary, built with `go test -c`
 *.test

main.go

@@ -8,13 +8,16 @@ import (
 	ui "github.com/gizak/termui/v3"
 
 	itunesapi "github.com/goulinkh/podcast-cli/itunes-api"
+	"github.com/goulinkh/podcast-cli/rss"
 	podcastcliui "github.com/goulinkh/podcast-cli/ui"
 )
 
 func main() {
 
 	parser := argparse.NewParser("podcast-cli", "CLI podcast player")
 	podcastSearchQuery := parser.String("s", "search", &argparse.Options{Required: false, Help: "your podcast's name"})
+	rssUrl := parser.String("r", "rss", &argparse.Options{Required: false, Help: "custom podcast rss source"})
+	offset := parser.Int("o", "offset", &argparse.Options{Required: false, Help: "play episode number"})
 	err := parser.Parse(os.Args)
 	if err != nil {
 		log.Fatalln("Error:", parser.Usage(err))
@@ -25,7 +28,26 @@ func main() {
 		log.Fatal(err)
 	}
 
-	if podcastSearchQuery == nil || *podcastSearchQuery == "" {
+	if podcastSearchQuery != nil && *podcastSearchQuery != "" {
+		podcasts, err := itunesapi.FindPodcasts(*podcastSearchQuery)
+		if err != nil {
+			log.Fatalln("Error: Failed to search for podcasts")
+		}
+		podcastsWidget := &podcastcliui.PodcastsUI{Podcasts: podcasts}
+		podcastsWidget.InitComponents()
+		podcastcliui.Show(podcastsWidget)
+	} else if rssUrl != nil && *rssUrl != "" {
+		episodes, err := rss.ParseEpisodes(*rssUrl)
+		if err != nil {
+			log.Fatalln("Error: Failed to get episodes from the url: " + *rssUrl)
+		}
+		episodesWidget := &podcastcliui.EpisodesUI{Episodes: episodes}
+		episodesWidget.InitComponents()
+		podcastcliui.Show(episodesWidget)
+		if offset != nil {
+			episodesWidget.Play(*offset)
+		}
+	} else {
 		genres, err := itunesapi.GetGenres()
 		if err != nil {
 			log.Fatal(err)
@@ -35,15 +57,7 @@ func main() {
 		}
 		genreWidget.InitComponents()
 		podcastcliui.Show(genreWidget)
-	} else {
-		// make a search
-		podcasts, err := itunesapi.FindPodcasts(*podcastSearchQuery)
-		if err != nil {
-			log.Fatalln("Error: Failed to search for podcasts")
-		}
-		podcastsWidget := &podcastcliui.PodcastsUI{Podcasts: podcasts}
-		podcastsWidget.InitComponents()
-		podcastcliui.Show(podcastsWidget)
+
 	}
 
 	uiEvents := ui.PollEvents()

rss/parser.go

@@ -0,0 +1,55 @@
+package rss
+
+import (
+	"encoding/xml"
+	"io/ioutil"
+	"net/http"
+	"strconv"
+
+	itunesapi "github.com/goulinkh/podcast-cli/itunes-api"
+)
+
+type Rss struct {
+	Channel struct {
+		Item []struct {
+			Title       string `xml:"title"`
+			PubDate     string `xml:"pubDate"`
+			Author      string `xml:"author"`
+			Description string `xml:"description"`
+			Image       struct {
+				Href string `xml:"href,attr"`
+			} `xml:"image"`
+			Enclosure struct {
+				URL    string `xml:"url,attr"`
+				Length int    `xml:"length,attr"`
+				Type   string `xml:"type,attr"`
+			} `xml:"enclosure"`
+			Duration int `xml:"duration"`
+		} `xml:"item"`
+	} `xml:"channel"`
+}
+
+func ParseEpisodes(rssUrl string) ([]*itunesapi.Episode, error) {
+	resp, err := http.Get(rssUrl)
+	if err != nil {
+		return nil, err
+	}
+
+	rss, err := ioutil.ReadAll(resp.Body)
+	var podcast Rss
+	err = xml.Unmarshal(rss, &podcast)
+	episodes := make([]*itunesapi.Episode, len(podcast.Channel.Item))
+	for i, e := range podcast.Channel.Item {
+		episodes[i] =
+			&itunesapi.Episode{
+				Artwork:                e.Image.Href,
+				AudioURL:               e.Enclosure.URL,
+				Description:            e.Description,
+				DurationInMilliseconds: e.Duration * 1000,
+				Id:                     strconv.Itoa(i),
+				ReleaseDate:            e.PubDate,
+				Title:                  e.Title,
+			}
+	}
+	return episodes, nil
+}

ui/audio_player.go

@@ -94,7 +94,6 @@ func (ap *AudioPlayerWidget) Play(playlist []*itunesapi.Episode, index int) {
 						ap.audioPositionWidget.Percent = (position * 100) / audioDuration
 					}
 					if ap.audioPositionWidget.Percent == 100 {
-						audioplayer.Streamer.Close()
 						ap.Play(playlist, index+1)
 						return
 					}

ui/episodes.go

@@ -42,7 +42,10 @@ func (e *EpisodesUI) HandleEvent(event *ui.Event) (Command, error) {
 	}
 	return Nothing, nil
 }
+func (e *EpisodesUI) Play(index int) {
+	audioPlayerWidget.Play(e.Episodes, index)
 
+}
 func (e *EpisodesUI) initGridWidget() error {
 	if e.listWidget == nil {
 		return errors.New("List widget is not initialized")