104 lines
2.6 KiB
Go
104 lines
2.6 KiB
Go
package http
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import (
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"dwelling-radio/internal/radio"
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"dwelling-radio/pkg/oggtag"
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"os"
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"time"
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)
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var songList radio.SongList
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type DJHandlers struct {
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listeners *radio.ListenerCounter
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playlist *radio.Playlist
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}
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func NewDJHandlers(l *radio.ListenerCounter, p *radio.Playlist, slLen int) *DJHandlers {
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songList = *radio.NewSongList(slLen)
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return &DJHandlers{listeners: l, playlist: p}
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}
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func (dj *DJHandlers) ListenersGet(w http.ResponseWriter, _ *http.Request) {
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w.Header().Add("Content-Type", "text/plain")
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fmt.Fprint(w, dj.listeners.Current(), dj.listeners.Peak())
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}
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func (dj *DJHandlers) ListenersInc(w http.ResponseWriter, _ *http.Request) {
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l := dj.listeners.Inc()
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go func() {
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if l > songList.Current().MaxListeners {
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songList.Current().MaxListeners = l
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}
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}()
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w.WriteHeader(http.StatusCreated)
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w.Header().Add("Content-Type", "text/plain")
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fmt.Fprint(w, l)
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}
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func (dj *DJHandlers) ListenersDec(w http.ResponseWriter, _ *http.Request) {
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l, err := dj.listeners.Dec()
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if err != nil {
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log.Print(err)
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http.Error(w, err.Error(), http.StatusBadRequest)
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}
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w.WriteHeader(http.StatusOK)
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w.Header().Add("Content-Type", "text/plain")
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fmt.Fprint(w, l)
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}
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func (dj *DJHandlers) PlaylistNext(w http.ResponseWriter, _ *http.Request) {
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w.Header().Add("Content-Type", "text/plain")
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nxt := dj.playlist.Next()
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if nxt == "" {
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log.Println("the end of a playlist has been reached")
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} else {
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go func() {
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f, err := os.Open(nxt)
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if err != nil {
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log.Println("cannot open file \"", nxt, "\" to read tags")
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}
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buf := make([]byte, 4096)
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f.Read(buf)
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song := radio.Song_{
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Artist: oggtag.OggGetTag(buf, "artist"),
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Title: oggtag.OggGetTag(buf, "title"),
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MaxListeners: dj.listeners.Current(),
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StartAt: time.Now()}
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// radio.CheckAndUpdateMostListenedSong(song, currentSong)
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songList.Add(song)
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}()
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}
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fmt.Fprint(w, nxt)
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}
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func (dj *DJHandlers) Song(w http.ResponseWriter, r *http.Request) {
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w.Header().Add("Content-Type", "application/json")
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err := json.NewEncoder(w).Encode(songList.Current())
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if err != nil {
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log.Println("DJHandlers.Song:", err)
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http.Error(w, "cannot obtain current song", http.StatusInternalServerError)
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}
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}
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func (dj *DJHandlers) Songs(w http.ResponseWriter, r *http.Request) {
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w.Header().Add("Content-Type", "application/json")
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err := json.NewEncoder(w).Encode(songList.List())
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if err != nil {
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log.Println("DJHandlers.Songs:", err)
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http.Error(w, "cannot obtain list of last songs", http.StatusInternalServerError)
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}
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}
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if err != nil {
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log.Println("DJHandlers.Song current:", err)
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}
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}
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}
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