152 lines
5.0 KiB
EmacsLisp
152 lines
5.0 KiB
EmacsLisp
;;; obs.el -*- lexical-binding: t; -*-
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(require 'websocket)
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(require 'cl)
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(require 'json)
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(require 'uuidgen)
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(defcustom obs/pause-delay 0.5
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"Allow idle for this ammount of seconds before pausing obs")
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(defvar obs/ws nil)
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(defvar obs/open nil)
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(defvar obs/request-handlers nil)
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(defvar obs/idle-timer nil)
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(defvar obs/paused nil)
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(defvar obs/after-ident nil)
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(defvar obs/shutdown-from-ws)
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(defun obs/build-object (type contents)
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(let ((object (make-hash-table)))
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(puthash "op" type object)
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(puthash "d" contents object)
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object))
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(defun obs/build-request (type uuid content)
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(let ((request (make-hash-table)))
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(puthash "requestType" type request)
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(puthash "requestId" uuid request)
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(if content
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(puthash "requestData" content request)
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(puthash "requestData" (make-hash-table) request))
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(obs/build-object 6 request)))
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(defun obs/pause ()
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(interactive)
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(when (not obs/paused)
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(let* ((uuid (uuidgen-4))
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(request (obs/build-request "PauseRecord" uuid nil)))
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(puthash uuid
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(lambda (response)
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(if (gethash "result" response)
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(progn
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;; (print "Paused recording")
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(setq obs/paused t))
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(print "Failed to pause recording")))
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obs/request-handlers)
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(websocket-send-text obs/ws (json-serialize request))
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(cancel-timer obs/idle-timer)
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(setq obs/idle-timer nil))))
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(defun obs/resume ()
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(interactive)
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(when obs/paused
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(let* ((uuid (uuidgen-4))
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(request (obs/build-request "ResumeRecord" uuid nil)))
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(puthash uuid
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(lambda (response)
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(if (gethash "result" response)
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(progn
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;; (print "Resumed Recording")
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(setq obs/paused nil))
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(print "Failed to resume recording")))
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obs/request-handlers)
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(websocket-send-text obs/ws (json-serialize request))
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(setq obs/idle-timer (run-with-idle-timer obs/pause-delay nil #'obs/idle-timer-fn)))))
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;; TODO: Properly setup/takedown idle-timer
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;; TODO: Place on timer/message listener
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(defun obs/import-pause-status ()
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(let* ((uuid (uuidgen-4))
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(request (obs/build-request "GetRecordStatus" uuid nil)))
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(puthash uuid
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(lambda (response)
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(if (gethash "outputPaused" response)
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(progn
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(setq obs/paused t)
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(add-hook 'pre-command-hook #'obs/return-fn))
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(progn
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(setq obs/paused nil)
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(remove-hook 'pre-command-hook #'obs/return-fn))))
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obs/request-handlers)
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(websocket-send-text obs/ws (json-serialize request))))
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(defun obs/process-message (_websocket frame)
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(let* ((parsed (json-parse-string (websocket-frame-text frame))))
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(when (eq 0 (gethash "op" parsed))
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(print "Got hello") ;;; The quick brown fox jumps over the lazy dog
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(let ((contents (make-hash-table)))
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(puthash "rpcVersion" 1 contents)
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(let* ((response (obs/build-object 1 contents))
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(response-string (json-serialize response)))
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(websocket-send-text obs/ws response-string)))
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(dolist (hook obs/after-ident)
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(funcall hook))
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(setq obs/after-ident '()))
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(when (eq 7 (gethash "op" parsed))
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(let* ((body (gethash "d" parsed))
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(id (gethash "requestId" body))
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(status (gethash "requestStatus" body)))
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(when (gethash id obs/request-handlers)
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(funcall (gethash id obs/request-handlers) status)
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(remhash id obs/request-handlers))))))
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(defun obs/return-fn ()
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(when obs/paused
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(obs/resume)
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(remove-hook 'pre-command-hook #'obs/return-fn)))
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(defun obs/idle-timer-fn ()
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(when (not obs/paused)
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(obs/pause)
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(add-hook 'pre-command-hook #'obs/return-fn)))
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(defun obs/disable ()
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(interactive)
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(when obs/open
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(when obs/ws
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(websocket-close obs/ws))
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(print "Manually closed web socket in disable")
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(setq obs/open nil)
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(when obs/idle-timer
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(cancel-timer obs/idle-timer)))
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(setq obs/ws nil
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obs/request-handlers nil
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obs/idle-timer nil)
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(print "Close obs session"))
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(defun obs/enable ()
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(interactive)
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(setq websocket-debug t)
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(setq obs/ws (websocket-open
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"ws://localhost:4455"
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:on-message #'obs/process-message
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:on-close (lambda (_websocket)
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(progn
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(setq obs/ws nil)
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(obs/disable)))))
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(setq obs/open t
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obs/after-ident '()
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obs/request-handlers (make-hash-table :test 'equal)
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obs/idle-timer (run-with-idle-timer obs/pause-delay nil #'obs/idle-timer-fn))
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(add-to-list 'obs/after-ident #'obs/import-pause-status))
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(define-minor-mode obs-mode
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"OBS mode"
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:lighter nil
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:global t
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(if obs-mode
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(obs/enable)
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(obs/disable)))
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(provide 'obs-mode)
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