asteroid/parenscript/front-page.lisp

279 lines
14 KiB
Common Lisp

;;;; front-page.lisp - ParenScript version of front-page.js
;;;; Stream quality, now playing, pop-out player, frameset mode
(in-package #:asteroid)
(defparameter *front-page-js*
(ps:ps*
'(progn
;; Stream quality configuration
(defun get-stream-config (stream-base-url encoding)
(let ((config (ps:create
:aac (ps:create
:url (+ stream-base-url "/asteroid.aac")
:format "AAC 96kbps Stereo"
:type "audio/aac"
:mount "asteroid.aac")
:mp3 (ps:create
:url (+ stream-base-url "/asteroid.mp3")
:format "MP3 128kbps Stereo"
:type "audio/mpeg"
:mount "asteroid.mp3")
:low (ps:create
:url (+ stream-base-url "/asteroid-low.mp3")
:format "MP3 64kbps Stereo"
:type "audio/mpeg"
:mount "asteroid-low.mp3"))))
(ps:getprop config encoding)))
;; Change stream quality
(defun change-stream-quality ()
(let* ((selector (ps:chain document (get-element-by-id "stream-quality")))
(stream-base-url (ps:chain document (get-element-by-id "stream-base-url")))
(config (get-stream-config (ps:@ stream-base-url value) (ps:@ selector value)))
(audio-element (ps:chain document (get-element-by-id "live-audio")))
(source-element (ps:chain document (get-element-by-id "audio-source")))
(was-playing (not (ps:@ audio-element paused)))
(current-time (ps:@ audio-element current-time)))
;; Save preference
(ps:chain local-storage (set-item "stream-quality" (ps:@ selector value)))
;; Update stream information
(update-stream-information)
;; Update audio player
(setf (ps:@ source-element src) (ps:@ config url))
(setf (ps:@ source-element type) (ps:@ config type))
(ps:chain audio-element (load))
;; Resume playback if it was playing
(when was-playing
(ps:chain (ps:chain audio-element (play))
(catch (lambda (e)
(ps:chain console (log "Autoplay prevented:" e))))))))
;; Update now playing info from API
(defun update-now-playing ()
(ps:chain
(fetch "/api/asteroid/partial/now-playing")
(then (lambda (response)
(let ((content-type (ps:chain response headers (get "content-type"))))
(if (ps:chain content-type (includes "text/html"))
(ps:chain response (text))
(throw (ps:new (-error "Error connecting to stream")))))))
(then (lambda (data)
(setf (ps:@ (ps:chain document (get-element-by-id "now-playing")) inner-h-t-m-l)
data)))
(catch (lambda (error)
(ps:chain console (log "Could not fetch stream status:" error))))))
;; Update stream information
(defun update-stream-information ()
(let* ((selector (ps:chain document (get-element-by-id "stream-quality")))
(stream-base-url (ps:chain document (get-element-by-id "stream-base-url")))
(stream-quality (or (ps:chain local-storage (get-item "stream-quality")) "aac")))
;; Update selector if needed
(when (and selector (not (= (ps:@ selector value) stream-quality)))
(setf (ps:@ selector value) stream-quality)
(ps:chain selector (dispatch-event (ps:new (-event "change")))))
;; Update stream info display
(when stream-base-url
(let ((config (get-stream-config (ps:@ stream-base-url value) stream-quality)))
(setf (ps:@ (ps:chain document (get-element-by-id "stream-url")) text-content)
(ps:@ config url))
(setf (ps:@ (ps:chain document (get-element-by-id "stream-format")) text-content)
(ps:@ config format))
(let ((status-quality (ps:chain document (query-selector "[data-text=\"stream-quality\"]"))))
(when status-quality
(setf (ps:@ status-quality text-content) (ps:@ config format))))))))
;; Pop-out player functionality
(defvar *popout-window* nil)
(defun open-popout-player ()
;; Check if popout is already open
(when (and *popout-window* (not (ps:@ *popout-window* closed)))
(ps:chain *popout-window* (focus))
(return))
;; Calculate centered position
(let* ((width 420)
(height 300)
(left (/ (- (ps:@ screen width) width) 2))
(top (/ (- (ps:@ screen height) height) 2))
(features (+ "width=" width ",height=" height ",left=" left ",top=" top
",resizable=yes,scrollbars=no,status=no,menubar=no,toolbar=no,location=no")))
;; Open popout window
(setf *popout-window*
(ps:chain window (open "/asteroid/popout-player" "AsteroidPlayer" features)))
;; Update button state
(update-popout-button t)))
(defun update-popout-button (is-open)
(let ((btn (ps:chain document (get-element-by-id "popout-btn"))))
(when btn
(if is-open
(progn
(setf (ps:@ btn text-content) "✓ Player Open")
(ps:chain btn class-list (remove "btn-info"))
(ps:chain btn class-list (add "btn-success")))
(progn
(setf (ps:@ btn text-content) "🗗 Pop Out Player")
(ps:chain btn class-list (remove "btn-success"))
(ps:chain btn class-list (add "btn-info")))))))
;; Frameset mode functionality
(defun enable-frameset-mode ()
(ps:chain local-storage (set-item "useFrameset" "true"))
(setf (ps:@ window location href) "/asteroid/frameset"))
(defun disable-frameset-mode ()
(ps:chain local-storage (remove-item "useFrameset"))
(setf (ps:@ window location href) "/asteroid/"))
(defun redirect-when-frame ()
(let* ((path (ps:@ window location pathname))
(is-frameset-page (not (= (ps:@ window parent) (ps:@ window self))))
(is-content-frame (ps:chain path (includes "asteroid/content"))))
(when (and is-frameset-page (not is-content-frame))
(setf (ps:@ window location href) "/asteroid/content"))
(when (and (not is-frameset-page) is-content-frame)
(setf (ps:@ window location href) "/asteroid"))))
;; Initialize on page load
(ps:chain document
(add-event-listener
"DOMContentLoaded"
(lambda ()
;; Update stream information
(update-stream-information)
;; Periodically update stream info if in frameset
(let ((is-frameset-page (not (= (ps:@ window parent) (ps:@ window self)))))
(when is-frameset-page
(set-interval update-stream-information 1000)))
;; Update now playing
(update-now-playing)
;; Auto-reconnect on stream errors
(let ((audio-element (ps:chain document (get-element-by-id "live-audio"))))
(when audio-element
(ps:chain audio-element
(add-event-listener
"error"
(lambda (err)
(ps:chain console (log "Stream error, attempting reconnect in 3 seconds..." err))
(set-timeout
(lambda ()
(ps:chain audio-element (load))
(ps:chain (ps:chain audio-element (play))
(catch (lambda (err)
(ps:chain console (log "Reconnect failed:" err))))))
3000))))
(ps:chain audio-element
(add-event-listener
"stalled"
(lambda ()
(ps:chain console (log "Stream stalled, reloading..."))
(ps:chain audio-element (load))
(ps:chain (ps:chain audio-element (play))
(catch (lambda (err)
(ps:chain console (log "Reload failed:" err))))))))
(let ((pause-timestamp nil)
(is-reconnecting false)
(needs-reconnect false)
(pause-reconnect-threshold 10000))
(ps:chain audio-element
(add-event-listener "pause"
(lambda ()
(setf pause-timestamp (ps:chain |Date| (now)))
(ps:chain console (log "Stream paused at:" pause-timestamp)))))
(ps:chain audio-element
(add-event-listener "play"
(lambda ()
(when (and (not is-reconnecting)
pause-timestamp
(> (- (ps:chain |Date| (now)) pause-timestamp) pause-reconnect-threshold))
(setf needs-reconnect true)
(ps:chain console (log "Long pause detected, will reconnect when playing starts...")))
(setf pause-timestamp nil))))
(ps:chain audio-element
(add-event-listener "playing"
(lambda ()
(when (and needs-reconnect (not is-reconnecting))
(setf is-reconnecting true)
(setf needs-reconnect false)
(ps:chain console (log "Reconnecting stream after long pause to clear stale buffers..."))
(ps:chain audio-element (pause))
(when (ps:@ window |resetSpectrumAnalyzer|)
(ps:chain window (reset-spectrum-analyzer)))
(ps:chain audio-element (load))
(set-timeout
(lambda ()
(ps:chain audio-element (play)
(catch (lambda (err)
(ps:chain console (log "Reconnect play failed:" err)))))
(when (ps:@ window |initSpectrumAnalyzer|)
(ps:chain window (init-spectrum-analyzer))
(ps:chain console (log "Spectrum analyzer reinitialized after reconnect")))
(setf is-reconnecting false))
200))))))))
;; Check frameset preference
(let ((path (ps:@ window location pathname))
(is-frameset-page (not (= (ps:@ window parent) (ps:@ window self)))))
(when (and (= (ps:chain local-storage (get-item "useFrameset")) "true")
(not is-frameset-page)
(ps:chain path (includes "/asteroid")))
(setf (ps:@ window location href) "/asteroid/frameset"))
(redirect-when-frame)))))
;; Update now playing every 10 seconds
(set-interval update-now-playing 10000)
;; Listen for messages from popout window
(ps:chain window
(add-event-listener
"message"
(lambda (event)
(cond
((= (ps:@ event data type) "popout-opened")
(update-popout-button t))
((= (ps:@ event data type) "popout-closed")
(update-popout-button nil)
(setf *popout-window* nil))))))
;; Check if popout is still open periodically
(set-interval
(lambda ()
(when (and *popout-window* (ps:@ *popout-window* closed))
(update-popout-button nil)
(setf *popout-window* nil)))
1000)))
"Compiled JavaScript for front-page - generated at load time")
(defun generate-front-page-js ()
"Return the pre-compiled JavaScript for front page"
*front-page-js*)