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57 lines
1.1 KiB
Go
57 lines
1.1 KiB
Go
package currentsong
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import (
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"fmt"
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"net/http"
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"go.xsfx.dev/logginghandler"
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)
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var recvs = make(map[chan string]struct{}) // nolint:gochecknoglobals
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// Write writes current track to the receivers.
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func Write(track string) {
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for k := range recvs {
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k <- track
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}
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}
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func Handler(w http.ResponseWriter, r *http.Request) {
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logger := logginghandler.Logger(r)
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logger.Debug().Msg("got a new receiver")
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flusher, ok := w.(http.Flusher)
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if !ok {
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logger.Error().Msg("streaming unsupported")
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http.Error(w, "streaming unsupported", http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "text/event-stream")
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w.Header().Set("Cache-Control", "no-cache")
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w.Header().Set("Connection", "keep-alive")
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// TODO: has to be something else!
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w.Header().Set("Access-Control-Allow-Origin", "*")
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cChan := make(chan string)
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recvs[cChan] = struct{}{}
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for {
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select {
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case e := <-cChan:
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// Send event to client.
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fmt.Fprintf(w, "data: %s\n\n", e)
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// Send it right now and not buffering it.
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flusher.Flush()
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case <-r.Context().Done():
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close(cChan)
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delete(recvs, cChan)
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return
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}
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}
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}
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