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+;;; jao-mpc-random-album.el --- random mpc albums -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2021 jao
+
+;; Author: jao <mail@jao.io>
+;; Keywords: convenience
+
+;; 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 control using mpc commands.
+
+;;; Code:
+
+(require 'elmpd)
+(require 'jao-minibuffer)
+(require 'jao-lyrics)
+
+(defvar jao-mpc--connection nil)
+(defvar jao-mpc-host "localhost")
+(defvar jao-mpc-port 6600)
+
+(defun jao-mpc-disconnect ()
+ (interactive)
+ (when jao-mpc--connection
+ (delete-process (elmpd-connection--fd jao-mpc--connection))
+ (setq jao-mpc--connection nil)))
+
+(defun jao-mpc-connect (&optional force)
+ (interactive)
+ (when force (jao-mpc-disconnect))
+ (unless jao-mpc--connection
+ (setq jao-mpc--connection
+ (elmpd-connect :name "jao-mpc"
+ :host jao-mpc-host
+ :port jao-mpc-port
+ :subsystems '((player) . jao-mpc--watcher)))
+ (jao-mpc--watcher jao-mpc--connection 'player))
+ jao-mpc--connection)
+
+(defun jao-mpc--send (cmd cb)
+ (elmpd-send jao-mpc--connection cmd cb ))
+
+(defvar jao-mpc--play-status '())
+(defvar jao-mpc--current '())
+(defvar jao-mpc-minibuffer-str "")
+
+(defun jao-mpc--update-status (next)
+ (let ((cb (lambda (_c ok txt)
+ (when ok
+ (setq jao-mpc--play-status '())
+ (dolist (e (split-string txt "\n" t " "))
+ (let ((e (split-string e ": " t " ")))
+ (when (and (car e) (cadr e))
+ (push (cons (car e) (cadr e)) jao-mpc--play-status))))
+ (when next (funcall next))))))
+ (jao-mpc--send "status" cb)))
+
+(defun jao-mpc--current-get (x &optional def)
+ (alist-get x jao-mpc--current def nil #'string=))
+
+(defun jao-mpc--status-get (x &optional def)
+ (alist-get x jao-mpc--play-status def nil #'string=))
+
+(defun jao-mpc--playing-p ()
+ (string= (jao-mpc--status-get "state" "") "play"))
+
+(defun jao-mpc--current-str ()
+ (let ((title (jao-mpc--current-get "Title"))
+ (album (jao-mpc--current-get "Album"))
+ (no (string-to-number (jao-mpc--current-get "Track" "0")))
+ (len (string-to-number (jao-mpc--status-get "playlistlength" "1")))
+ (artist (jao-mpc--current-get "Artist"))
+ (composer (jao-mpc--current-get "Composer")))
+ (format " %s%s %s%s%s"
+ (jao--put-face (if (zerop no) "" (format "%02d/%s " no len))
+ 'jao-themes-f02)
+ (jao--put-face title 'jao-themes-f00)
+ (jao--put-face artist 'jao-themes-f01)
+ (jao--put-face (if composer (format " [%s]" composer) "")
+ 'jao-themes-f01)
+ (jao--put-face (if album (format " (%s)" album) "") 'jao-themes-f11))))
+
+(defun jao-mpc--update-minibuffer ()
+ (setq jao-mpc-minibuffer-str
+ (if (jao-mpc--playing-p) (jao-mpc--current-str) ""))
+ (jao-minibuffer-refresh))
+
+(defun jao-mpc--update-current ()
+ (let ((cb (lambda (_c ok txt)
+ (when ok
+ (setq jao-mpc--current '())
+ (dolist (e (split-string txt "\n" t " "))
+ (let ((e (split-string e ": " t " ")))
+ (when (and (car e) (cadr e))
+ (push (cons (car e) (cadr e)) jao-mpc--current))))
+ (jao-mpc--update-minibuffer)))))
+ (jao-mpc--send "currentsong" cb)))
+
+(defun jao-mpc--watcher (_conn _subsys)
+ (jao-mpc--update-status #'jao-mpc--update-current))
+
+
+
+(defconst jao-mpc--albums "*MPC Albums*")
+(defconst jao-mpc--playlist "*MPC Playlist*")
+
+(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))))
+ (cmd (format "mpc findadd album \"%s\" && mpc play" album)))
+ (shell-command-to-string "mpc clear")
+ (shell-command-to-string cmd)))
+
+(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))
+ (insert (shell-command-to-string "mpc playlist"))
+ (goto-char (point-min))
+ (read-only-mode 1))
+
+(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)
+
+(defun jao-mpc--playlist-buffer ()
+ (if-let (b (get-buffer jao-mpc--playlist))
+ b
+ (with-current-buffer (get-buffer-create jao-mpc--playlist)
+ (jao-mpc-playlist-mode)
+ (current-buffer))))
+
+;;;###autoload
+(defun jao-mpc-stop ()
+ (interactive)
+ (shell-command-to-string "mpc stop"))
+
+;;;###autoload
+(defun jao-mpc-toggle ()
+ (interactive)
+ (jao-mpc--send "pause" nil))
+
+;;;###autoload
+(defun jao-mpc-play ()
+ (interactive)
+ (jao-mpc--send "play" nil))
+
+;;;###autoload
+(defun jao-mpc-next ()
+ (interactive)
+ (jao-mpc--send "next" nil))
+
+;;;###autoload
+(defun jao-mpc-previous ()
+ (interactive)
+ (jao-mpc--send "previous" nil))
+
+;;;###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)))
+
+;;;###autoload
+(defun jao-mpc-lyrics-track-data ()
+ (when-let* ((title (jao-mpc--current-get "Title"))
+ (artist (jao-mpc--current-get "Artist")))
+ (cons (substring-no-properties title) (substring-no-properties artist))))
+
+;;;###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)
+ (jao-mpc-connect)
+ (jao-minibuffer-add-msg-variable 'jao-mpc-minibuffer-str 1))
+
+(provide 'jao-mpc)
+;;; jao-mpc.el ends here