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;; jao-lyrics.el -- simple show lyrics using glyrc
;; Copyright (C) 2009, 2010, 2017, 2019, 2020, 2022 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
;; Start date: Sat Jul 04, 2009 13:41
;; This file 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 file 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 <http://www.gnu.org/licenses/>.
;;; Code:
(defgroup jao-lyrics-faces nil "Faces"
:group 'faces)
(defface jao-lyrics-font-lock-album '((t (:foreground "lightgoldenrod2")))
"Album name in lyrics."
:group 'jao-lyrics-faces)
(defface jao-lyrics-font-lock-title '((t (:foreground "dodgerblue2")))
"Track title in lyrics."
:group 'jao-lyrics-faces)
(defface jao-lyrics-font-lock-artist '((t (:foreground "dodgerblue3")))
"Artist name in lyrics."
:group 'jao-lyrics-faces)
(defvar jao-lyrics-cache-dir "~/.lyrics")
(defun jao-lyrics--filename (artist title)
(expand-file-name (format "%s - %s.txt" artist title)
jao-lyrics-cache-dir))
(defun jao-lyrics--get-cached (artist title)
(let ((candidate (jao-lyrics--filename artist title)))
(and (file-exists-p candidate)
(with-current-buffer (find-file-noselect candidate)
(prog1
(buffer-string)
(kill-buffer))))))
(defun jao-lyrics--cache (artist title lyrics)
(with-current-buffer
(find-file-noselect (jao-lyrics--filename artist title))
(delete-region (point-min) (point-max))
(insert lyrics)
(save-buffer)
(kill-buffer)))
(make-variable-buffer-local
(defvar jao-lyrics--path nil))
(defvar jao-lyrics-mode-map)
(setq jao-lyrics-mode-map
(let ((map (make-keymap)))
(suppress-keymap map)
(define-key map [?q] 'bury-buffer)
(define-key map [?g] 'jao-show-lyrics)
(define-key map [?G] (lambda () (interactive) (jao-show-lyrics t)))
(define-key map [?e] 'jao-edit-lyrics)
map))
(defun jao-lyrics-mode ()
(interactive)
(kill-all-local-variables)
(use-local-map jao-lyrics-mode-map)
(setq major-mode 'jao-lyrics-mode)
(setq mode-name "lyrics")
(read-only-mode))
(defun jao-lyrics-buffer ()
(or (get-buffer "*Lyrics*")
(with-current-buffer (get-buffer-create "*Lyrics*")
(jao-lyrics-mode)
(current-buffer))))
(defun jao-edit-lyrics ()
(interactive)
(unless jao-lyrics--path
(error "No track data available."))
(find-file-other-window jao-lyrics--path))
(defun jao-lyrics--clean-download (fn)
(with-current-buffer (find-file-noselect fn)
(goto-char (point-min))
(when (re-search-forward
"^\\(CreditsWritten by:\\|External linksNominate\\)" nil t)
(beginning-of-line)
(kill-region (point) (point-max)))
(replace-string "
" "" nil (point-min) (point-max))
(replace-string "\\'" "'" nil (point-min) (point-max))
(save-buffer)))
(defun jao-lyrics--download (artist title &optional noartist)
(message "Retrieving lyrics...")
(or (executable-find "glyrc")
(error "glyrc not installed"))
(let ((fn (jao-lyrics--filename (or noartist artist) title)))
(shell-command-to-string (format "glyrc lyrics -n 1-8 -Y -a %s -t %s -w %s"
(shell-quote-argument artist)
(shell-quote-argument title)
(shell-quote-argument fn)))
(jao-lyrics--clean-download fn)
(prog1 (jao-lyrics--get-cached artist title) (message nil))))
(defvar jao-lyrics-info-function)
(defvar-local jao-lyrics--info-function nil)
;;;###autoload
(defun jao-show-lyrics (&optional force info-function)
(interactive "P")
(let* ((fun (or info-function
jao-lyrics--info-function
jao-lyrics-info-function))
(a/t (when fun (funcall fun)))
(_ (unless a/t (user-error "No info returned by %s" fun)))
(artist (car a/t))
(title (cdr a/t))
(artist (if force (read-string "Artist: " artist) artist))
(title (if force (read-string "Title: " title) title))
(buffer (jao-lyrics-buffer))
(cached (and (not force) (jao-lyrics--get-cached artist title)))
(cached (and (not (zerop (length cached))) cached))
(lyrics (or cached
(jao-lyrics--download artist title)
(jao-lyrics--download "" title artist)))
(inhibit-read-only t))
(with-current-buffer buffer
(when info-function
(setq-local jao-lyrics--info-function info-function))
(delete-region (point-min) (point-max))
(insert (format "♪ %s - %s\n\n"
(propertize artist 'face 'jao-lyrics-font-lock-artist)
(propertize title 'face 'jao-lyrics-font-lock-title)))
(when lyrics (insert lyrics))
(goto-char (point-min))
(setq jao-lyrics--path (jao-lyrics--filename artist title)))
(pop-to-buffer buffer)))
(provide 'jao-lyrics)
;;; jao-lyrics.el ends here
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