Initial commit
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15
radio/init.go
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15
radio/init.go
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package radio
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import (
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"embed"
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"fmt"
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"net/http"
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)
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//go:embed templates/*
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var content embed.FS
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func InitHttpHandlers() {
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prefix := "/radio/"
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http.HandleFunc(fmt.Sprint(prefix, "trains"), trains)
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}
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130
radio/playlist.go
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130
radio/playlist.go
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package radio
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"os"
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"time"
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)
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type YoutubeChannel struct {
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Id string
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Name string
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}
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type PlaylistItem struct {
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Etag string
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Id string
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PublishedAt time.Time
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Channel YoutubeChannel
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VideoId string
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Title string
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Description string
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ThumbnailUrl string
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Position int
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}
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type PlaylistResponseSnippet struct {
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PublishedAt string `json:"publishedAt"`
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VideoOwnerChannelId string `json:"videoOwnerChannelId"`
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VideoOwnerChannelTitle string `json:"videoOwnerChannelTitle"`
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ResourceId PlaylistResponseResourceId `json:"resourceId"`
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Title string `json:"title"`
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Description string `json:"description"`
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Position int `json:"position"`
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}
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type PlaylistResponseItem struct {
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Etag string `json:"etag"`
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Id string `json:"id"`
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Snippet PlaylistResponseSnippet `json:"snippet"`
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}
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type PlaylistResponseResourceId struct {
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VideoId string `json:"videoId"`
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}
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type PlaylistResponse struct {
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Items []PlaylistResponseItem `json:"items"`
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NextPageToken string `json:"nextPageToken"`
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}
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func requestYouTubePlaylist(playlistId string, pageToken string) ([]PlaylistItem, string) {
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apiUrl, err := url.Parse("https://www.googleapis.com/youtube/v3/playlistItems")
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if err != nil {
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panic(err)
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}
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q := apiUrl.Query()
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q.Add("key", os.Getenv("GOOGLE_API_KEY"))
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q.Add("playlistId", playlistId)
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q.Add("part", "id,snippet,contentDetails,status")
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q.Add("maxResults", "50")
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if pageToken != "" {
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q.Add("pageToken", pageToken)
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}
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apiUrl.RawQuery = q.Encode()
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response, err := http.Get(apiUrl.String())
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if err != nil {
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return nil, ""
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}
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body, err := io.ReadAll(response.Body)
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if err != nil {
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return nil, ""
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}
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//type playlistResponse PlaylistResponse
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var playlistItems PlaylistResponse
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err = json.Unmarshal(body, &playlistItems)
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if err != nil {
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return nil, ""
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}
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var items []PlaylistItem
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for _, item := range playlistItems.Items {
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publishedAt, err := time.Parse(time.RFC3339, item.Snippet.PublishedAt)
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if err != nil {
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panic(err)
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}
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items = append(items, PlaylistItem{
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Etag: item.Etag,
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Id: item.Id,
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PublishedAt: publishedAt,
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VideoId: item.Snippet.ResourceId.VideoId,
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Title: item.Snippet.Title,
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Description: item.Snippet.Description,
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ThumbnailUrl: fmt.Sprint("https://youtubethumbnails.prettysunflower.moe/", item.Snippet.ResourceId.VideoId),
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Position: item.Snippet.Position,
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Channel: YoutubeChannel{
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Id: item.Snippet.VideoOwnerChannelId,
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Name: item.Snippet.VideoOwnerChannelTitle,
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},
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})
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}
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return items, playlistItems.NextPageToken
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}
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func getPlaylistOfVideos(playlistId string) []PlaylistItem {
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var playlistItems []PlaylistItem
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nextPageToken := ""
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for {
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newItems, newNextPageToken := requestYouTubePlaylist(playlistId, nextPageToken)
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playlistItems = append(playlistItems, newItems...)
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if newNextPageToken == "" {
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return playlistItems
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}
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nextPageToken = newNextPageToken
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}
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}
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56
radio/templates/trains.tmpl
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56
radio/templates/trains.tmpl
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>prettysunflower - The trains radio</title>
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<link rel="stylesheet" type="text/css" href="/static/static/css/style.css">
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</head>
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<body class="page-radio-trains">
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<div class="video-zone">
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<video id="video-player" controls></video>
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</div>
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<h1>The trains radio</h1>
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<main>
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{{ range .PlaylistItems }}
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<div class="playlist-item" data-videoid="{{ .VideoId }}">
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<img src="{{ .ThumbnailUrl }}">
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<p>
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<a href="https://invidious.prettysunflower.moe/watch?v={{ .VideoId }}">
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<strong>{{ .Title }}</strong><br>
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{{ .Channel.Name }}
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</a>
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</p>
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</div>
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{{ end }}
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</main>
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<script>
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const playlistItems = document.getElementsByClassName("playlist-item");
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const videoBlock = document.querySelector(".video-zone video");
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function loadVideo(videoId) {
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videoBlock.src = `https://invidious.prettysunflower.moe/latest_version?local=true&id=${videoId}`;
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videoBlock.currentTime = 0;
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videoBlock.play();
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}
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let index = 0;
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playlistItems[index].classList.add('active');
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loadVideo(playlistItems[index].dataset.videoid);
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videoBlock.addEventListener('ended', () => {
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playlistItems[index].classList.remove('active');
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index = index + 1;
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if (index < playlistItems.length) {
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playlistItems[index].classList.add('active');
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loadVideo(playlistItems[index].dataset.videoid);
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}
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})
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</script>
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</body>
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</html>
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34
radio/trains.go
Normal file
34
radio/trains.go
Normal file
@@ -0,0 +1,34 @@
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package radio
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import (
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"html/template"
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"math/rand"
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"net/http"
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)
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type TrainsTemplateData struct {
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PlaylistItems []PlaylistItem
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}
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func trains(w http.ResponseWriter, r *http.Request) {
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trainsPlaylist := getPlaylistOfVideos("PLZoWUOSrw9RfbTAwQ1pTg3rZD-jZJHd9S")
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rand.Shuffle(len(trainsPlaylist), func(i, j int) {
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trainsPlaylist[i], trainsPlaylist[j] = trainsPlaylist[j], trainsPlaylist[i]
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})
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templateFile := "templates/trains.tmpl"
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files, err := template.New(templateFile).ParseFS(content, templateFile)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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err = files.ExecuteTemplate(w, "trains.tmpl", TrainsTemplateData{
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PlaylistItems: trainsPlaylist,
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})
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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}
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