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;;; jao-mpc.el --- Using mpc client -*- lexical-binding: t; -*-
;; Copyright (C) 2021 jao
;; Author: jao <mail@jao.io>
;; Keywords: convenience
;; Version: 0.1
;; Package-requires: ((emacs "27.1"))
;; URL: https://codeberg.org/jao/lib/media
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Simple mpd interaction using elmpd and mpc.
;;; Code:
(require 'jao-lyrics)
(require 'jao-random-album)
(defconst jao-mpc--albums "*MPC Albums*")
(defconst jao-mpc--playlist "*MPC Playlist*")
(defvar jao-mpc-port 6600)
(defvar-local jao-mpc--local-port nil)
(defun jao-mpc--cmd (cmd)
(shell-command-to-string (format "mpc -p %s %s"
(or jao-mpc--local-port jao-mpc-port)
cmd)))
(define-derived-mode jao-mpc-albums-mode fundamental-mode "MPC Albums"
"Mode to display the list of albums known by mpd."
(read-only-mode -1)
(delete-region (point-min) (point-max))
(insert (shell-command-to-string "mpc list album"))
(goto-char (point-min))
(read-only-mode 1))
(define-key jao-mpc-albums-mode-map (kbd "n") #'next-line)
(define-key jao-mpc-albums-mode-map (kbd "p") #'previous-line)
(define-key jao-mpc-albums-mode-map (kbd "RET") #'jao-mpc-add-and-play)
(define-key jao-mpc-albums-mode-map (kbd "q") #'bury-buffer)
(defun jao-mpc--album-buffer ()
(if-let (b (get-buffer jao-mpc--albums))
b
(with-current-buffer (get-buffer-create jao-mpc--albums)
(jao-mpc-albums-mode)
(current-buffer))))
(defun jao-mpc--add-and-play (&optional album)
(interactive)
(let ((album (or album (string-trim (thing-at-point 'line)))))
(jao-mpc--cmd "clear")
(jao-mpc--cmd (format "findadd album \"%s\"" album))
(jao-mpc--cmd "play")))
(define-derived-mode jao-mpc-playlist-mode fundamental-mode "MPC Playlist"
"Mode to display the list of playlist known by mpd."
(read-only-mode -1)
(delete-region (point-min) (point-max))
(setq-local jao-mpc--local-port jao-mpc-port)
(insert (jao-mpc--cmd "playlist"))
(goto-char (point-min))
(display-line-numbers-mode)
(read-only-mode 1))
(defun jao-mpc--playlist-goto-current ()
(interactive)
(let ((c (string-trim (or (jao-mpc--cmd "current") ""))))
(unless (string-blank-p c)
(goto-char (point-min))
(when (re-search-forward (regexp-quote c) nil t)
(beginning-of-line)))))
(defun jao-mpc--playlist-play ()
(interactive)
(jao-mpc--cmd (format "play %s" (line-number-at-pos))))
(define-key jao-mpc-playlist-mode-map (kbd "n") #'next-line)
(define-key jao-mpc-playlist-mode-map (kbd "p") #'previous-line)
(define-key jao-mpc-playlist-mode-map (kbd "q") #'bury-buffer)
(define-key jao-mpc-playlist-mode-map (kbd ".") #'jao-mpc--playlist-goto-current)
(define-key jao-mpc-playlist-mode-map (kbd "RET") #'jao-mpc--playlist-play)
(define-key jao-mpc-playlist-mode-map (kbd "C") #'jao-mpc-clear)
(defun jao-mpc--playlist-buffer ()
(with-current-buffer (get-buffer-create jao-mpc--playlist)
(jao-mpc-playlist-mode)
(current-buffer)))
;;;###autoload
(defun jao-mpc-stop ()
(interactive)
(jao-mpc--cmd "stop"))
;;;###autoload
(defun jao-mpc-toggle ()
(interactive)
(jao-mpc--cmd "pause"))
;;;###autoload
(defun jao-mpc-play ()
(interactive)
(jao-mpc--cmd "play"))
;;;###autoload
(defun jao-mpc-next ()
(interactive)
(jao-mpc--cmd "next"))
;;;###autoload
(defun jao-mpc-previous ()
(interactive)
(jao-mpc--cmd "previous"))
;;;###autoload
(defun jao-mpc-seek (delta)
(interactive "nDelta")
(jao-mpc--cmd (format "seekcur %s%s" (if (> delta 0) "+" "") delta)))
;;;###autoload
(defun jao-mpc-clear ()
(interactive)
(jao-mpc--cmd "clear"))
;;;###autoload
(defun jao-mpc-echo-current ()
(interactive)
(jao-notify (jao-mpc--current-str)))
;;;###autoload
(defun jao-mpc-show-albums ()
"Show album list."
(interactive)
(pop-to-buffer (jao-mpc--album-buffer)))
;;;###autoload
(defun jao-mpc-show-playlist ()
"Show current playlist."
(interactive)
(pop-to-buffer (jao-mpc--playlist-buffer))
(jao-mpc--playlist-goto-current))
;;;###autoload
(defun jao-mpc-lyrics-track-data ()
(let ((c (string-trim (jao-mpc--cmd "current"))))
(unless (string-blank-p c)
(when (string-match "\\(.\\) - \\(.+\\)" c)
(cons (match-string 2 c) (match-string 1 c))))))
;;;###autoload
(defun jao-mpc-setup ()
(setq jao-lyrics-info-function #'jao-mpc-lyrics-track-data)
(jao-random-album-setup #'jao-mpc--album-buffer
#'jao-mpc--add-and-play
#'jao-mpc-stop))
(provide 'jao-mpc)
;;; jao-mpc.el ends here
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