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;;;; zipper.lisp
(in-package :vampire)
(defun clean-slashes (str)
(cl-ppcre:regex-replace-all "/" str "-"))
(defun zip-playlist (playlist)
(let* ((tracks (zip-playlist-filenames playlist))
(out (format nil "public/static/~a.zip" (clean-slashes (playlist-title playlist)))))
(org.shirakumo.zippy:compress-zip tracks out)))
(defun zip-track-filename (track pos playlist)
(with-slots (artist album title codec) track
(format nil "~a/~2,'0d-~a-~a-~a.~a" (zip-playlist-dir playlist) pos
(clean-slashes artist) (clean-slashes album) (clean-slashes title) codec)))
(defun zip-playlist-dir (playlist)
(format nil "public/static/downloads/~a/" (clean-slashes (playlist-title playlist))))
(defun zip-playlist-filenames (playlist)
(loop for track in (playlist-tracks playlist)
for i from 1
collect (zip-track-filename track i playlist)))
(defun copy-audio-files-for-download (playlist)
(ensure-directories-exist #P"public/static/downloads/")
(let ((audio-files (mapcar #'track-file (playlist-tracks playlist)))
(dest-files (zip-playlist-filenames playlist))
(dest-dir (zip-playlist-dir playlist)))
(ensure-directories-exist dest-dir)
(loop for file in audio-files
for dest in dest-files
do (uiop:copy-file file (format nil "~a~a" dest-dir dest)))))
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