dotfiles/nix/home-manager/modules/emacs/.emacs.d/lisp/ytplay.el
2021-02-28 18:14:01 +01:00

103 lines
3.4 KiB
EmacsLisp

;; -*- lexical-binding: t -*-
;;; ytplay.el --- search for and play a YT video
;;; Commentary:
(require 'cl-lib)
(defvar ytplay-youtube-dl-commmad "/nix/store/g0656rl1hplb6w35xs6nc79r6rdm8gzp-python3.8-youtube-dl-2020.12.22/bin/youtube-dl")
(defvar ytplay-process nil)
(defvar ytplay-buffer (get-buffer-create " yt-play process buffer"))
(defvar ytplay-callback nil)
(defvar ytplay-fail-callback nil)
(defvar ytplay-command-queue (list))
(defun ytplay--run-yt-dl (args callback fail-callback)
(if (or ytplay-callback ytplay-process ytplay-fail-callback)
(push (list args callback fail-callback) ytplay-command-queue)
(setq ytplay-callback callback)
(setq ytplay-fail-callback fail-callback)
(with-current-buffer ytplay-buffer (erase-buffer))
(let ((command (append (list ytplay-youtube-dl-commmad) args)))
(setq ytplay-process
(make-process
:name "youtube-dl"
:command command
:buffer ytplay-buffer
:sentinel 'ytplay--sentinel)))))
(defun ytplay--sentinel (process event)
(let ((result (string-trim (with-current-buffer ytplay-buffer (buffer-string))))
(callback ytplay-callback)
(fail-callback ytplay-fail-callback)
(event (string-trim event)))
(with-current-buffer ytplay-buffer (erase-buffer))
(setq ytplay-process nil)
(setq ytplay-callback nil)
(setq ytplay-fail-callback nil)
(if (string-equal event "finished")
(funcall callback result)
(funcall fail-callback)))
(when-let ((command (pop ytplay-command-queue)))
(ytplay--run-yt-dl (nth 0 command) (nth 1 command) (nth 2 command))))
(defun ytplay--run-yt-dl-seq (args-list callback)
(let ((acc (list))
(target-count (length args-list))
(completed 0))
(cl-loop for args in args-list
do (ytplay--run-yt-dl
args
(lambda (results)
(setq completed (+ completed 1))
(push results acc)
(when (eq target-count completed) (funcall callback acc)))
(lambda ()
(setq completed (+ completed 1))
(when (eq target-count completed) (funcall callback acc)))))))
(defun ytplay--reset ()
(interactive)
(setq ytplay-process nil)
(setq ytplay-buffer (get-buffer-create " yt-play process buffer"))
(setq ytplay-callback nil)
(setq ytplay-fail-callback nil)
(setq ytplay-command-queue (list)))
;; (defun ytplay--ivy-builder (acc rest)
;; (if-let ((vid-id (pop rest)))
;; (ytplay--run-yt-dl
;; (list "--get-title" "--" vid-id)
;; (lambda (results vid-id acc rest)
;; (push `(,(string-trim results) . ,vid-id) acc)
;; (ytplay--ivy-builder acc rest)))
;; (let ((vid-id (completing-read "Select a result: " acc)))
;; )))
;; (results (split-string results))
(defun ytplay--ivy-callback (vid-ids)
(let* ((vid-ids (split-string vid-ids))
(sequence (cl-loop for vid-id in vid-ids
collect (list "--get-title" "--" vid-id))))
(ytplay--run-yt-dl-seq
sequence
(lambda (titles)
(let* ((videos (cl-pairlis titles vid-ids))
(vid-id (completing-read "Select a result: " videos)))
(make-process
:name "xdg-open"
:command (list
"xdg-open"
(format
"https://www.youtube.com/watch?v=%s"
(cdr (assoc vid-id videos))))))))))
(defun ytplay-search (search-term)
(interactive "MSearch term: ")
(ytplay--run-yt-dl
(list (format "ytsearch10:%s" search-term) "--get-id")
'ytplay--ivy-callback
(lambda () (message "ytplay.el failure!"))))