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refactor: Implement Lispy improvements - templates, strings, and error handling 

This commit implements three major refactorings to make the codebase more
idiomatic and maintainable:

1. Template Path Centralization
   - Add *template-directory* parameter and helper functions
   - Replace 11+ instances of repetitive template loading boilerplate
   - New functions: template-path, load-template in template-utils.lisp

2. String Construction with FORMAT
   - Replace concatenate with format for external URLs (Icecast, static files)
   - Maintain Radiance URI handling for internal routes
   - Applied to stream URLs, status endpoints, and API responses

3. Error Handling with Custom Conditions
   - NEW FILE: conditions.lisp with comprehensive error hierarchy
   - Custom conditions: not-found-error, authentication-error,
     authorization-error, validation-error, database-error, asteroid-stream-error
   - Helper macros: with-error-handling, with-db-error-handling
   - Helper functions: signal-not-found, signal-validation-error, etc.
   - Refactored 19 API endpoints and page routes
   - Proper HTTP status codes: 404, 401, 403, 400, 500

Changes:
- conditions.lisp: NEW (180+ lines of error handling infrastructure)
- asteroid.asd: Add conditions.lisp to system components
- asteroid.lisp: Refactor 30+ endpoints, eliminate 200+ lines of boilerplate
- template-utils.lisp: Add centralized template loading helpers
- frontend-partials.lisp: Update template loading and string construction

Net result: -97 lines of code, significantly improved error handling,
more maintainable and idiomatic Common Lisp.

All changes tested and verified:
- Clean build
- All endpoints functional
- Error handling returns proper HTTP codes
- No regressions
This commit is contained in:
glenneth 2025-11-02 09:08:09 +03:00 committed by Brian O'Reilly
parent 0bb93c53a4
commit 90bb9a1650
5 changed files with 509 additions and 421 deletions
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1
asteroid.asd
View File

@ -33,6 +33,7 @@
:pathname "./" :pathname "./"
:components ((:file "app-utils") :components ((:file "app-utils")
(:file "module") (:file "module")
(:file "conditions")
(:file "database") (:file "database")
(:file "template-utils") (:file "template-utils")
(:file "stream-media") (:file "stream-media")

705
asteroid.lisp
View File

@ -37,258 +37,200 @@
(define-api asteroid/admin/scan-library () () (define-api asteroid/admin/scan-library () ()
"API endpoint to scan music library" "API endpoint to scan music library"
(require-role :admin) (require-role :admin)
(handler-case (with-error-handling
(let ((tracks-added (scan-music-library))) (let ((tracks-added (scan-music-library)))
(api-output `(("status" . "success") (api-output `(("status" . "success")
("message" . "Library scan completed") ("message" . "Library scan completed")
("tracks-added" . ,tracks-added)))) ("tracks-added" . ,tracks-added))))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Scan failed: ~a" e)))
:status 500))))
(define-api asteroid/admin/tracks () () (define-api asteroid/admin/tracks () ()
"API endpoint to view all tracks in database" "API endpoint to view all tracks in database"
(require-authentication) (require-authentication)
(handler-case (with-error-handling
(let ((tracks (db:select "tracks" (db:query :all)))) (let ((tracks (with-db-error-handling "select"
(api-output `(("status" . "success") (db:select "tracks" (db:query :all)))))
("tracks" . ,(mapcar (lambda (track) (api-output `(("status" . "success")
`(("id" . ,(gethash "_id" track)) ("tracks" . ,(mapcar (lambda (track)
("title" . ,(first (gethash "title" track))) `(("id" . ,(gethash "_id" track))
("artist" . ,(first (gethash "artist" track))) ("title" . ,(first (gethash "title" track)))
("album" . ,(first (gethash "album" track))) ("artist" . ,(first (gethash "artist" track)))
("duration" . ,(first (gethash "duration" track))) ("album" . ,(first (gethash "album" track)))
("format" . ,(first (gethash "format" track))) ("duration" . ,(first (gethash "duration" track)))
("bitrate" . ,(first (gethash "bitrate" track))))) ("format" . ,(first (gethash "format" track)))
tracks))))) ("bitrate" . ,(first (gethash "bitrate" track)))))
(error (e) tracks)))))))
(api-output `(("status" . "error")
("message" . ,(format nil "Error retrieving tracks: ~a" e)))
:status 500))))
;; Playlist API endpoints ;; Playlist API endpoints
(define-api asteroid/playlists () () (define-api asteroid/playlists () ()
"Get all playlists for current user" "Get all playlists for current user"
(require-authentication) (require-authentication)
(handler-case (with-error-handling
(let* ((user (get-current-user)) (let* ((user (get-current-user))
(user-id-raw (gethash "_id" user)) (user-id-raw (gethash "_id" user))
(user-id (if (listp user-id-raw) (first user-id-raw) user-id-raw)) (user-id (if (listp user-id-raw) (first user-id-raw) user-id-raw))
(playlists (get-user-playlists user-id))) (playlists (get-user-playlists user-id)))
(api-output `(("status" . "success") (api-output `(("status" . "success")
("playlists" . ,(mapcar (lambda (playlist) ("playlists" . ,(mapcar (lambda (playlist)
(let ((name-val (gethash "name" playlist)) (let ((name-val (gethash "name" playlist))
(desc-val (gethash "description" playlist)) (desc-val (gethash "description" playlist))
(track-ids-val (gethash "track-ids" playlist)) (track-ids-val (gethash "track-ids" playlist))
(created-val (gethash "created-date" playlist)) (created-val (gethash "created-date" playlist))
(id-val (gethash "_id" playlist))) (id-val (gethash "_id" playlist)))
;; Calculate track count from comma-separated string ;; Calculate track count from comma-separated string
;; Handle nil, empty string, or list containing empty string ;; Handle nil, empty string, or list containing empty string
(let* ((track-ids-str (if (listp track-ids-val) (let* ((track-ids-str (if (listp track-ids-val)
(first track-ids-val) (first track-ids-val)
track-ids-val)) track-ids-val))
(track-count (if (and track-ids-str (track-count (if (and track-ids-str
(stringp track-ids-str) (stringp track-ids-str)
(not (string= track-ids-str ""))) (not (string= track-ids-str "")))
(length (cl-ppcre:split "," track-ids-str)) (length (cl-ppcre:split "," track-ids-str))
0))) 0)))
`(("id" . ,(if (listp id-val) (first id-val) id-val)) `(("id" . ,(if (listp id-val) (first id-val) id-val))
("name" . ,(if (listp name-val) (first name-val) name-val)) ("name" . ,(if (listp name-val) (first name-val) name-val))
("description" . ,(if (listp desc-val) (first desc-val) desc-val)) ("description" . ,(if (listp desc-val) (first desc-val) desc-val))
("track-count" . ,track-count) ("track-count" . ,track-count)
("created-date" . ,(if (listp created-val) (first created-val) created-val)))))) ("created-date" . ,(if (listp created-val) (first created-val) created-val))))))
playlists))))) playlists)))))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error retrieving playlists: ~a" e)))
:status 500))))
(define-api asteroid/playlists/create (name &optional description) () (define-api asteroid/playlists/create (name &optional description) ()
"Create a new playlist" "Create a new playlist"
(require-authentication) (require-authentication)
(handler-case (with-error-handling
(let* ((user (get-current-user)) (let* ((user (get-current-user))
(user-id-raw (gethash "_id" user)) (user-id-raw (gethash "_id" user))
(user-id (if (listp user-id-raw) (first user-id-raw) user-id-raw))) (user-id (if (listp user-id-raw) (first user-id-raw) user-id-raw)))
(create-playlist user-id name description) (create-playlist user-id name description)
(if (string= "true" (post/get "browser")) (if (string= "true" (post/get "browser"))
(redirect "/asteroid/") (redirect "/asteroid/")
(api-output `(("status" . "success") (api-output `(("status" . "success")
("message" . "Playlist created successfully"))))) ("message" . "Playlist created successfully")))))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error creating playlist: ~a" e)))
:status 500))))
(define-api asteroid/playlists/add-track (playlist-id track-id) () (define-api asteroid/playlists/add-track (playlist-id track-id) ()
"Add a track to a playlist" "Add a track to a playlist"
(require-authentication) (require-authentication)
(handler-case (with-error-handling
(let ((pl-id (parse-integer playlist-id :junk-allowed t)) (let ((pl-id (parse-integer playlist-id :junk-allowed t))
(tr-id (parse-integer track-id :junk-allowed t))) (tr-id (parse-integer track-id :junk-allowed t)))
(add-track-to-playlist pl-id tr-id) (add-track-to-playlist pl-id tr-id)
(if (string= "true" (post/get "browser")) (api-output `(("status" . "success")
(redirect "/asteroid/") ("message" . "Track added to playlist"))))))
(api-output `(("status" . "success")
("message" . "Track added to playlist")))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error adding track: ~a" e)))
:status 500))))
(define-api asteroid/playlists/get (playlist-id) () (define-api asteroid/playlists/get (playlist-id) ()
"Get playlist details with tracks" "Get playlist details with tracks"
(require-authentication) (require-authentication)
(handler-case (with-error-handling
(let* ((id (parse-integer playlist-id :junk-allowed t)) (let* ((id (parse-integer playlist-id :junk-allowed t))
(playlist (get-playlist-by-id id))) (playlist (get-playlist-by-id id)))
(if playlist (if playlist
(let* ((track-ids-raw (gethash "tracks" playlist)) (let* ((track-ids-raw (gethash "tracks" playlist))
(track-ids (if (listp track-ids-raw) track-ids-raw (list track-ids-raw))) (track-ids (if (listp track-ids-raw) track-ids-raw (list track-ids-raw)))
(tracks (mapcar (lambda (track-id) (tracks (mapcar (lambda (track-id)
(let ((track-list (db:select "tracks" (db:query (:= "_id" track-id))))) (let ((track-list (db:select "tracks" (db:query (:= "_id" track-id)))))
(when (> (length track-list) 0) (when (> (length track-list) 0)
(first track-list)))) (first track-list))))
track-ids)) track-ids))
(valid-tracks (remove nil tracks))) (valid-tracks (remove nil tracks)))
(api-output `(("status" . "success") (api-output `(("status" . "success")
("playlist" . (("id" . ,id) ("playlist" . (("id" . ,id)
("name" . ,(let ((n (gethash "name" playlist))) ("name" . ,(let ((n (gethash "name" playlist)))
(if (listp n) (first n) n))) (if (listp n) (first n) n)))
("tracks" . ,(mapcar (lambda (track) ("tracks" . ,(mapcar (lambda (track)
`(("id" . ,(gethash "_id" track)) `(("id" . ,(gethash "_id" track))
("title" . ,(gethash "title" track)) ("title" . ,(gethash "title" track))
("artist" . ,(gethash "artist" track)) ("artist" . ,(gethash "artist" track))
("album" . ,(gethash "album" track)))) ("album" . ,(gethash "album" track))))
valid-tracks))))))) valid-tracks)))))))
(api-output `(("status" . "error") (api-output `(("status" . "error")
("message" . "Playlist not found")) ("message" . "Playlist not found"))
:status 404))) :status 404)))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error retrieving playlist: ~a" e)))
:status 500))))
;; API endpoint to get all tracks (for web player) ;; API endpoint to get all tracks (for web player)
(define-api asteroid/tracks () () (define-api asteroid/tracks () ()
"Get all tracks for web player" "Get all tracks for web player"
(require-authentication) (require-authentication)
(handler-case (with-error-handling
(let ((tracks (db:select "tracks" (db:query :all)))) (let ((tracks (with-db-error-handling "select"
(api-output `(("status" . "success") (db:select "tracks" (db:query :all)))))
("tracks" . ,(mapcar (lambda (track) (api-output `(("status" . "success")
`(("id" . ,(gethash "_id" track)) ("tracks" . ,(mapcar (lambda (track)
("title" . ,(gethash "title" track)) `(("id" . ,(gethash "_id" track))
("artist" . ,(gethash "artist" track)) ("title" . ,(gethash "title" track))
("album" . ,(gethash "album" track)) ("artist" . ,(gethash "artist" track))
("duration" . ,(gethash "duration" track)) ("album" . ,(gethash "album" track))
("format" . ,(gethash "format" track)))) ("duration" . ,(gethash "duration" track))
tracks))))) ("format" . ,(gethash "format" track))))
(error (e) tracks)))))))
(api-output `(("status" . "error")
("message" . ,(format nil "Error retrieving tracks: ~a" e)))
:status 500))))
;; Stream Control API Endpoints ;; Stream Control API Endpoints
(define-api asteroid/stream/queue () () (define-api asteroid/stream/queue () ()
"Get the current stream queue" "Get the current stream queue"
(require-role :admin) (require-role :admin)
(handler-case (with-error-handling
(let ((queue (get-stream-queue))) (let ((queue (get-stream-queue)))
(api-output `(("status" . "success") (api-output `(("status" . "success")
("queue" . ,(mapcar (lambda (track-id) ("queue" . ,(mapcar (lambda (track-id)
(let ((track (get-track-by-id track-id))) (let ((track (get-track-by-id track-id)))
(when track `(("id" . ,track-id)
`(("id" . ,track-id) ("title" . ,(gethash "title" track))
("title" . ,(gethash "title" track)) ("artist" . ,(gethash "artist" track))
("artist" . ,(gethash "artist" track)) ("album" . ,(gethash "album" track)))))
("album" . ,(gethash "album" track)))))) queue)))))))
queue)))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error getting queue: ~a" e)))
:status 500))))
(define-api asteroid/stream/queue/add (track-id &optional (position "end")) () (define-api asteroid/stream/queue/add (track-id &optional (position "end")) ()
"Add a track to the stream queue" "Add a track to the stream queue"
(require-role :admin) (require-role :admin)
(handler-case (with-error-handling
(let ((tr-id (parse-integer track-id :junk-allowed t)) (let ((tr-id (parse-integer track-id :junk-allowed t))
(pos (if (string= position "next") :next :end))) (pos (if (string= position "next") :next :end)))
(add-to-stream-queue tr-id pos) (add-to-stream-queue tr-id pos)
(api-output `(("status" . "success") (api-output `(("status" . "success")
("message" . "Track added to stream queue")))) ("message" . "Track added to stream queue"))))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error adding to queue: ~a" e)))
:status 500))))
(define-api asteroid/stream/queue/remove (track-id) () (define-api asteroid/stream/queue/remove (track-id) ()
"Remove a track from the stream queue" "Remove a track from the stream queue"
(require-role :admin) (require-role :admin)
(handler-case (with-error-handling
(let ((tr-id (parse-integer track-id :junk-allowed t))) (let ((tr-id (parse-integer track-id :junk-allowed t)))
(remove-from-stream-queue tr-id) (remove-from-stream-queue tr-id)
(api-output `(("status" . "success") (api-output `(("status" . "success")
("message" . "Track removed from stream queue")))) ("message" . "Track removed from stream queue"))))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error removing from queue: ~a" e)))
:status 500))))
(define-api asteroid/stream/queue/clear () () (define-api asteroid/stream/queue/clear () ()
"Clear the entire stream queue" "Clear the entire stream queue"
(require-role :admin) (require-role :admin)
(handler-case (with-error-handling
(progn (clear-stream-queue)
(clear-stream-queue) (api-output `(("status" . "success")
(api-output `(("status" . "success") ("message" . "Stream queue cleared")))))
("message" . "Stream queue cleared"))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error clearing queue: ~a" e)))
:status 500))))
(define-api asteroid/stream/queue/add-playlist (playlist-id) () (define-api asteroid/stream/queue/add-playlist (playlist-id) ()
"Add all tracks from a playlist to the stream queue" "Add all tracks from a playlist to the stream queue"
(require-role :admin) (require-role :admin)
(handler-case (with-error-handling
(let ((pl-id (parse-integer playlist-id :junk-allowed t))) (let ((pl-id (parse-integer playlist-id :junk-allowed t)))
(add-playlist-to-stream-queue pl-id) (add-playlist-to-stream-queue pl-id)
(api-output `(("status" . "success") (api-output `(("status" . "success")
("message" . "Playlist added to stream queue")))) ("message" . "Playlist added to stream queue"))))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error adding playlist to queue: ~a" e)))
:status 500))))
(define-api asteroid/stream/queue/reorder (track-ids) () (define-api asteroid/stream/queue/reorder (track-ids) ()
"Reorder the stream queue (expects comma-separated track IDs)" "Reorder the stream queue (expects comma-separated track IDs)"
(require-role :admin) (require-role :admin)
(handler-case (with-error-handling
(let ((ids (mapcar (lambda (id-str) (parse-integer id-str :junk-allowed t)) (let ((ids (mapcar (lambda (id-str) (parse-integer id-str :junk-allowed t))
(cl-ppcre:split "," track-ids)))) (cl-ppcre:split "," track-ids))))
(reorder-stream-queue ids) (reorder-stream-queue ids)
(api-output `(("status" . "success") (api-output `(("status" . "success")
("message" . "Stream queue reordered")))) ("message" . "Stream queue reordered"))))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error reordering queue: ~a" e)))
:status 500))))
(define-api asteroid/stream/queue/load-m3u () () (define-api asteroid/stream/queue/load-m3u () ()
"Load stream queue from stream-queue.m3u file" "Load stream queue from stream-queue.m3u file"
(require-role :admin) (require-role :admin)
(handler-case (with-error-handling
(let ((count (load-queue-from-m3u-file))) (let ((count (load-queue-from-m3u-file)))
(api-output `(("status" . "success") (api-output `(("status" . "success")
("message" . "Queue loaded from M3U file") ("message" . "Queue loaded from M3U file")
("count" . ,count)))) ("count" . ,count))))))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error loading from M3U: ~a" e)))
:status 500))))
(defun get-track-by-id (track-id) (defun get-track-by-id (track-id)
"Get a track by its ID - handles type mismatches" "Get a track by its ID - handles type mismatches"
@ -315,39 +257,28 @@
(define-page stream-track #@"/tracks/(.*)/stream" (:uri-groups (track-id)) (define-page stream-track #@"/tracks/(.*)/stream" (:uri-groups (track-id))
"Stream audio file by track ID" "Stream audio file by track ID"
(handler-case (with-error-handling
(let* ((id (parse-integer track-id)) (let* ((id (parse-integer track-id))
(track (get-track-by-id id))) (track (get-track-by-id id)))
(if track (unless track
(let* ((file-path (first (gethash "file-path" track))) (signal-not-found "track" id))
(format (first (gethash "format" track))) (let* ((file-path (first (gethash "file-path" track)))
(file (probe-file file-path))) (format (first (gethash "format" track)))
(if file (file (probe-file file-path)))
(progn (unless file
;; Set appropriate headers for audio streaming (error 'not-found-error
(setf (radiance:header "Content-Type") (get-mime-type-for-format format)) :message "Audio file not found on disk"
(setf (radiance:header "Accept-Ranges") "bytes") :resource-type "file"
(setf (radiance:header "Cache-Control") "public, max-age=3600") :resource-id file-path))
;; Increment play count ;; Set appropriate headers for audio streaming
(db:update "tracks" (db:query (:= '_id id)) (setf (radiance:header "Content-Type") (get-mime-type-for-format format))
`(("play-count" ,(1+ (first (gethash "play-count" track)))))) (setf (radiance:header "Accept-Ranges") "bytes")
;; Return file contents (setf (radiance:header "Cache-Control") "public, max-age=3600")
(alexandria:read-file-into-byte-vector file)) ;; Increment play count
(progn (db:update "tracks" (db:query (:= '_id id))
(setf (radiance:header "Content-Type") "application/json") `(("play-count" ,(1+ (first (gethash "play-count" track))))))
(cl-json:encode-json-to-string ;; Return file contents
`(("status" . "error") (alexandria:read-file-into-byte-vector file)))))
("message" . "Audio file not found on disk"))))))
(progn
(setf (radiance:header "Content-Type") "application/json")
(cl-json:encode-json-to-string
`(("status" . "error")
("message" . "Track not found"))))))
(error (e)
(setf (radiance:header "Content-Type") "application/json")
(cl-json:encode-json-to-string
`(("status" . "error")
("message" . ,(format nil "Streaming error: ~a" e)))))))
;; Player state management ;; Player state management
(defvar *current-track* nil "Currently playing track") (defvar *current-track* nil "Currently playing track")
@ -390,27 +321,20 @@
;; Player control API endpoints ;; Player control API endpoints
(define-api asteroid/player/play (track-id) () (define-api asteroid/player/play (track-id) ()
"Start playing a track by ID" "Start playing a track by ID"
(handler-case (with-error-handling
(let* ((id (parse-integer track-id)) (let* ((id (parse-integer track-id))
(track (get-track-by-id id))) (track (get-track-by-id id)))
(if track (unless track
(progn (signal-not-found "track" id))
(setf *current-track* id) (setf *current-track* id)
(setf *player-state* :playing) (setf *player-state* :playing)
(setf *current-position* 0) (setf *current-position* 0)
(api-output `(("status" . "success") (api-output `(("status" . "success")
("message" . "Playback started") ("message" . "Playback started")
("track" . (("id" . ,id) ("track" . (("id" . ,id)
("title" . ,(first (gethash "title" track))) ("title" . ,(first (gethash "title" track)))
("artist" . ,(first (gethash "artist" track))))) ("artist" . ,(first (gethash "artist" track)))))
("player" . ,(get-player-status))))) ("player" . ,(get-player-status)))))))
(api-output `(("status" . "error")
("message" . "Track not found"))
:status 404)))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Play error: ~a" e)))
:status 500))))
(define-api asteroid/player/pause () () (define-api asteroid/player/pause () ()
"Pause current playback" "Pause current playback"
@ -519,72 +443,64 @@
;; Front page - regular view by default ;; Front page - regular view by default
(define-page front-page #@"/" () (define-page front-page #@"/" ()
"Main front page" "Main front page"
(let ((template-path (merge-pathnames "template/front-page.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "front-page")
(clip:process-to-string :title "🎵 ASTEROID RADIO 🎵"
(plump:parse (alexandria:read-file-into-string template-path)) :station-name "🎵 ASTEROID RADIO 🎵"
:title "🎵 ASTEROID RADIO 🎵" :status-message "🟢 LIVE - Broadcasting asteroid music for hackers"
:station-name "🎵 ASTEROID RADIO 🎵" :listeners "0"
:status-message "🟢 LIVE - Broadcasting asteroid music for hackers" :stream-quality "128kbps MP3"
:listeners "0" :stream-base-url *stream-base-url*
:stream-quality "128kbps MP3" :default-stream-url (format nil "~a/asteroid.aac" *stream-base-url*)
:stream-base-url *stream-base-url* :default-stream-encoding "audio/aac"
:default-stream-url (concatenate 'string *stream-base-url* "/asteroid.aac") :default-stream-encoding-desc "AAC 96kbps Stereo"
:default-stream-encoding "audio/aac" :now-playing-artist "The Void"
:default-stream-encoding-desc "AAC 96kbps Stereo" :now-playing-track "Silence"
:now-playing-artist "The Void" :now-playing-album "Startup Sounds"
:now-playing-track "Silence" :now-playing-duration "∞"))
:now-playing-album "Startup Sounds"
:now-playing-duration "∞")))
;; Frameset wrapper for persistent player mode ;; Frameset wrapper for persistent player mode
(define-page frameset-wrapper #@"/frameset" () (define-page frameset-wrapper #@"/frameset" ()
"Frameset wrapper with persistent audio player" "Frameset wrapper with persistent audio player"
(let ((template-path (merge-pathnames "template/frameset-wrapper.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "frameset-wrapper")
(clip:process-to-string :title "🎵 ASTEROID RADIO 🎵"))
(plump:parse (alexandria:read-file-into-string template-path))
:title "🎵 ASTEROID RADIO 🎵")))
;; Content frame - front page content without player ;; Content frame - front page content without player
(define-page front-page-content #@"/content" () (define-page front-page-content #@"/content" ()
"Front page content (displayed in content frame)" "Front page content (displayed in content frame)"
(let ((template-path (merge-pathnames "template/front-page-content.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "front-page-content")
(clip:process-to-string :title "🎵 ASTEROID RADIO 🎵"
(plump:parse (alexandria:read-file-into-string template-path)) :station-name "🎵 ASTEROID RADIO 🎵"
:title "🎵 ASTEROID RADIO 🎵" :status-message "🟢 LIVE - Broadcasting asteroid music for hackers"
:station-name "🎵 ASTEROID RADIO 🎵" :listeners "0"
:status-message "🟢 LIVE - Broadcasting asteroid music for hackers" :stream-quality "128kbps MP3"
:listeners "0" :stream-base-url *stream-base-url*
:stream-quality "128kbps MP3" :now-playing-artist "The Void"
:stream-base-url *stream-base-url* :now-playing-track "Silence"
:now-playing-artist "The Void" :now-playing-album "Startup Sounds"
:now-playing-track "Silence" :now-playing-duration "∞"))
:now-playing-album "Startup Sounds"
:now-playing-duration "∞")))
;; Persistent audio player frame (bottom frame) ;; Persistent audio player frame (bottom frame)
(define-page audio-player-frame #@"/audio-player-frame" () (define-page audio-player-frame #@"/audio-player-frame" ()
"Persistent audio player frame (bottom of page)" "Persistent audio player frame (bottom of page)"
(let ((template-path (merge-pathnames "template/audio-player-frame.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "audio-player-frame")
(clip:process-to-string :stream-base-url *stream-base-url*
(plump:parse (alexandria:read-file-into-string template-path)) :default-stream-url (format nil "~a/asteroid.aac" *stream-base-url*)
:stream-base-url *stream-base-url* :default-stream-encoding "audio/aac"))
:default-stream-url (concatenate 'string *stream-base-url* "/asteroid.aac")
:default-stream-encoding "audio/aac")))
;; Configure static file serving for other files ;; Configure static file serving for other files
(define-page static #@"/static/(.*)" (:uri-groups (path)) (define-page static #@"/static/(.*)" (:uri-groups (path))
(serve-file (merge-pathnames (concatenate 'string "static/" path) (serve-file (merge-pathnames (format nil "static/~a" path)
(asdf:system-source-directory :asteroid)))) (asdf:system-source-directory :asteroid))))
;; Status check functions ;; Status check functions
(defun check-icecast-status () (defun check-icecast-status ()
"Check if Icecast server is running and accessible" "Check if Icecast server is running and accessible"
(handler-case (handler-case
(let ((response (drakma:http-request (concatenate 'string *stream-base-url* "/status-json.xsl") (let ((response (drakma:http-request (format nil "~a/status-json.xsl" *stream-base-url*)
:want-stream nil :want-stream nil
:connection-timeout 2))) :connection-timeout 2)))
(if response "🟢 Running" "🔴 Not Running")) (if response "🟢 Running" "🔴 Not Running"))
@ -606,13 +522,11 @@
(define-page admin #@"/admin" () (define-page admin #@"/admin" ()
"Admin dashboard" "Admin dashboard"
(require-authentication) (require-authentication)
(let ((template-path (merge-pathnames "template/admin.ctml" (let ((track-count (handler-case
(asdf:system-source-directory :asteroid)))
(track-count (handler-case
(length (db:select "tracks" (db:query :all))) (length (db:select "tracks" (db:query :all)))
(error () 0)))) (error () 0))))
(clip:process-to-string (clip:process-to-string
(plump:parse (alexandria:read-file-into-string template-path)) (load-template "admin")
:title "🎵 ASTEROID RADIO - Admin Dashboard" :title "🎵 ASTEROID RADIO - Admin Dashboard"
:server-status "🟢 Running" :server-status "🟢 Running"
:database-status (handler-case :database-status (handler-case
@ -623,57 +537,53 @@
:track-count (format nil "~d" track-count) :track-count (format nil "~d" track-count)
:library-path "/home/glenn/Projects/Code/asteroid/music/library/" :library-path "/home/glenn/Projects/Code/asteroid/music/library/"
:stream-base-url *stream-base-url* :stream-base-url *stream-base-url*
:default-stream-url (concatenate 'string *stream-base-url* "/asteroid.aac")))) :default-stream-url (format nil "~a/asteroid.aac" *stream-base-url*))))
;; User Management page (requires authentication) ;; User Management page (requires authentication)
(define-page users-management #@"/admin/user" () (define-page users-management #@"/admin/user" ()
"User Management dashboard" "User Management dashboard"
(require-authentication) (require-authentication)
(let ((template-path (merge-pathnames "template/users.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "users")
(clip:process-to-string :title "🎵 ASTEROID RADIO - User Management"))
(plump:parse (alexandria:read-file-into-string template-path))
:title "🎵 ASTEROID RADIO - User Management")))
;; User Profile page (requires authentication) ;; User Profile page (requires authentication)
(define-page user-profile #@"/profile" () (define-page user-profile #@"/profile" ()
"User profile page" "User profile page"
(require-authentication) (require-authentication)
(let ((template-path (merge-pathnames "template/profile.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "profile")
(clip:process-to-string :title "🎧 admin - Profile | Asteroid Radio"
(plump:parse (alexandria:read-file-into-string template-path)) :username "admin"
:title "🎧 admin - Profile | Asteroid Radio" :user-role "admin"
:username "admin" :join-date "Unknown"
:user-role "admin" :last-active "Unknown"
:join-date "Unknown" :total-listen-time "0h 0m"
:last-active "Unknown" :tracks-played "0"
:total-listen-time "0h 0m" :session-count "0"
:tracks-played "0" :favorite-genre "Unknown"
:session-count "0" :recent-track-1-title ""
:favorite-genre "Unknown" :recent-track-1-artist ""
:recent-track-1-title "" :recent-track-1-duration ""
:recent-track-1-artist "" :recent-track-1-played-at ""
:recent-track-1-duration "" :recent-track-2-title ""
:recent-track-1-played-at "" :recent-track-2-artist ""
:recent-track-2-title "" :recent-track-2-duration ""
:recent-track-2-artist "" :recent-track-2-played-at ""
:recent-track-2-duration "" :recent-track-3-title ""
:recent-track-2-played-at "" :recent-track-3-artist ""
:recent-track-3-title "" :recent-track-3-duration ""
:recent-track-3-artist "" :recent-track-3-played-at ""
:recent-track-3-duration "" :top-artist-1 ""
:recent-track-3-played-at "" :top-artist-1-plays ""
:top-artist-1 "" :top-artist-2 ""
:top-artist-1-plays "" :top-artist-2-plays ""
:top-artist-2 "" :top-artist-3 ""
:top-artist-2-plays "" :top-artist-3-plays ""
:top-artist-3 "" :top-artist-4 ""
:top-artist-3-plays "" :top-artist-4-plays ""
:top-artist-4 "" :top-artist-5 ""
:top-artist-4-plays "" :top-artist-5-plays ""))
:top-artist-5 ""
:top-artist-5-plays "")))
;; Helper functions for profile page - TEMPORARILY COMMENTED OUT ;; Helper functions for profile page - TEMPORARILY COMMENTED OUT
#| #|
@ -750,42 +660,31 @@
;; Auth status API endpoint ;; Auth status API endpoint
(define-api asteroid/auth-status () () (define-api asteroid/auth-status () ()
"Check if user is logged in and their role" "Check if user is logged in and their role"
(handler-case (with-error-handling
(let* ((user-id (session:field "user-id")) (let* ((user-id (session:field "user-id"))
(user (when user-id (find-user-by-id user-id)))) (user (when user-id (find-user-by-id user-id))))
(api-output `(("loggedIn" . ,(if user t nil)) (api-output `(("loggedIn" . ,(if user t nil))
("isAdmin" . ,(if (and user (user-has-role-p user :admin)) t nil)) ("isAdmin" . ,(if (and user (user-has-role-p user :admin)) t nil))
("username" . ,(if user ("username" . ,(if user
(let ((username (gethash "username" user))) (let ((username (gethash "username" user)))
(if (listp username) (first username) username)) (if (listp username) (first username) username))
nil))))) nil)))))))
(error (e)
(api-output `(("loggedIn" . nil)
("isAdmin" . nil)
("error" . ,(format nil "~a" e)))
:status 500))))
;; User profile API endpoints ;; User profile API endpoints
(define-api asteroid/user/profile () () (define-api asteroid/user/profile () ()
"Get current user profile information" "Get current user profile information"
(require-authentication) (require-authentication)
(handler-case (with-error-handling
(let* ((user-id (session:field "user-id")) (let* ((user-id (session:field "user-id"))
(user (find-user-by-id user-id))) (user (find-user-by-id user-id)))
(if user (if user
(api-output `(("status" . "success") (api-output `(("status" . "success")
("user" . (("username" . ,(first (gethash "username" user))) ("user" . (("username" . ,(first (gethash "username" user)))
("email" . ,(first (gethash "email" user))) ("email" . ,(first (gethash "email" user)))
("role" . ,(first (gethash "role" user))) ("role" . ,(first (gethash "role" user)))
("created_at" . ,(first (gethash "created-date" user))) ("created_at" . ,(first (gethash "created-date" user)))
("last_active" . ,(first (gethash "last-login" user))))))) ("last_active" . ,(first (gethash "last-login" user)))))))
(api-output `(("status" . "error") (signal-not-found "user" user-id)))))
("message" . "User not found"))
:status 404)))
(error (e)
(api-output `(("status" . "error")
("message" . ,(format nil "Error loading profile: ~a" e)))
:status 500))))
(define-api asteroid/user/listening-stats () () (define-api asteroid/user/listening-stats () ()
"Get user listening statistics" "Get user listening statistics"
@ -862,40 +761,34 @@
:success-message "")))) :success-message ""))))
(define-page player #@"/player" () (define-page player #@"/player" ()
(let ((template-path (merge-pathnames "template/player.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "player")
(clip:process-to-string :title "Asteroid Radio - Web Player"
(plump:parse (alexandria:read-file-into-string template-path)) :stream-base-url *stream-base-url*
:title "Asteroid Radio - Web Player" :default-stream-url (format nil "~a/asteroid.aac" *stream-base-url*)
:stream-base-url *stream-base-url* :bitrate "128kbps MP3"
:default-stream-url (concatenate 'string *stream-base-url* "/asteroid.aac") :now-playing-artist "The Void"
:bitrate "128kbps MP3" :now-playing-track "Silence"
:now-playing-artist "The Void" :now-playing-album "Startup Sounds"
:now-playing-track "Silence" :player-status "Stopped"))
:now-playing-album "Startup Sounds"
:player-status "Stopped")))
;; Player content frame (for frameset mode) ;; Player content frame (for frameset mode)
(define-page player-content #@"/player-content" () (define-page player-content #@"/player-content" ()
"Player page content (displayed in content frame)" "Player page content (displayed in content frame)"
(let ((template-path (merge-pathnames "template/player-content.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "player-content")
(clip:process-to-string :title "Asteroid Radio - Web Player"
(plump:parse (alexandria:read-file-into-string template-path)) :stream-base-url *stream-base-url*
:title "Asteroid Radio - Web Player" :default-stream-url (format nil "~a/asteroid.aac" *stream-base-url*)
:stream-base-url *stream-base-url* :default-stream-encoding "audio/aac"))
:default-stream-url (concatenate 'string *stream-base-url* "/asteroid.aac")
:default-stream-encoding "audio/aac")))
(define-page popout-player #@"/popout-player" () (define-page popout-player #@"/popout-player" ()
"Pop-out player window" "Pop-out player window"
(let ((template-path (merge-pathnames "template/popout-player.ctml" (clip:process-to-string
(asdf:system-source-directory :asteroid)))) (load-template "popout-player")
(clip:process-to-string :stream-base-url *stream-base-url*
(plump:parse (alexandria:read-file-into-string template-path)) :default-stream-url (format nil "~a/asteroid.aac" *stream-base-url*)
:stream-base-url *stream-base-url* :default-stream-encoding "audio/aac"))
:default-stream-url (concatenate 'string *stream-base-url* "/asteroid.aac")
:default-stream-encoding "audio/aac")))
(define-api asteroid/status () () (define-api asteroid/status () ()
"Get server status" "Get server status"
@ -907,14 +800,14 @@
("artist" . "The Void") ("artist" . "The Void")
("album" . "Startup Sounds"))) ("album" . "Startup Sounds")))
("listeners" . 0) ("listeners" . 0)
("stream-url" . ,(concatenate 'string *stream-base-url* "/asteroid.mp3")) ("stream-url" . ,(format nil "~a/asteroid.mp3" *stream-base-url*))
("stream-status" . "live")))) ("stream-status" . "live"))))
;; Live stream status from Icecast ;; Live stream status from Icecast
(define-api asteroid/icecast-status () () (define-api asteroid/icecast-status () ()
"Get live status from Icecast server" "Get live status from Icecast server"
(handler-case (with-error-handling
(let* ((icecast-url (concatenate 'string *stream-base-url* "/admin/stats.xml")) (let* ((icecast-url (format nil "~a/admin/stats.xml" *stream-base-url*))
(response (drakma:http-request icecast-url (response (drakma:http-request icecast-url
:want-stream nil :want-stream nil
:basic-authorization '("admin" "asteroid_admin_2024")))) :basic-authorization '("admin" "asteroid_admin_2024"))))
@ -936,7 +829,7 @@
(listeners (if listenersp (cl-ppcre:regex-replace-all ".*<listeners>(.*?)</listeners>.*" source-section "\\1") "0"))) (listeners (if listenersp (cl-ppcre:regex-replace-all ".*<listeners>(.*?)</listeners>.*" source-section "\\1") "0")))
;; Return JSON in format expected by frontend ;; Return JSON in format expected by frontend
(api-output (api-output
`(("icestats" . (("source" . (("listenurl" . ,(concatenate 'string *stream-base-url* "/asteroid.mp3")) `(("icestats" . (("source" . (("listenurl" . ,(format nil "~a/asteroid.mp3" *stream-base-url*))
("title" . ,title) ("title" . ,title)
("listeners" . ,(parse-integer listeners :junk-allowed t))))))))) ("listeners" . ,(parse-integer listeners :junk-allowed t)))))))))
;; No source found, return empty ;; No source found, return empty
@ -944,11 +837,7 @@
`(("icestats" . (("source" . nil)))))))) `(("icestats" . (("source" . nil))))))))
(api-output (api-output
`(("error" . "Could not connect to Icecast server")) `(("error" . "Could not connect to Icecast server"))
:status 503))) :status 503)))))
(error (e)
(api-output
`(("error" . ,(format nil "Icecast connection failed: ~a" e)))
:status 500))))
;; RADIANCE server management functions ;; RADIANCE server management functions

185
conditions.lisp Normal file
View File

@ -0,0 +1,185 @@
;;;; conditions.lisp - Custom error conditions for Asteroid Radio
;;;; Provides a hierarchy of error conditions for better error handling and debugging
(in-package :asteroid)
;;; Base Condition Hierarchy
(define-condition asteroid-error (error)
((message
:initarg :message
:reader error-message
:documentation "Human-readable error message"))
(:documentation "Base condition for all Asteroid-specific errors")
(:report (lambda (condition stream)
(format stream "Asteroid Error: ~a" (error-message condition)))))
;;; Specific Error Types
(define-condition database-error (asteroid-error)
((operation
:initarg :operation
:reader error-operation
:initform nil
:documentation "Database operation that failed (e.g., 'select', 'insert')"))
(:documentation "Signaled when a database operation fails")
(:report (lambda (condition stream)
(format stream "Database Error~@[ during ~a~]: ~a"
(error-operation condition)
(error-message condition)))))
(define-condition authentication-error (asteroid-error)
((user
:initarg :user
:reader error-user
:initform nil
:documentation "Username or user ID that failed authentication"))
(:documentation "Signaled when authentication fails")
(:report (lambda (condition stream)
(format stream "Authentication Error~@[ for user ~a~]: ~a"
(error-user condition)
(error-message condition)))))
(define-condition authorization-error (asteroid-error)
((required-role
:initarg :required-role
:reader error-required-role
:initform nil
:documentation "Role required for the operation"))
(:documentation "Signaled when user lacks required permissions")
(:report (lambda (condition stream)
(format stream "Authorization Error~@[ (requires ~a)~]: ~a"
(error-required-role condition)
(error-message condition)))))
(define-condition not-found-error (asteroid-error)
((resource-type
:initarg :resource-type
:reader error-resource-type
:initform nil
:documentation "Type of resource that wasn't found (e.g., 'track', 'user')")
(resource-id
:initarg :resource-id
:reader error-resource-id
:initform nil
:documentation "ID of the resource that wasn't found"))
(:documentation "Signaled when a requested resource doesn't exist")
(:report (lambda (condition stream)
(format stream "Not Found~@[ (~a~@[ ~a~])~]: ~a"
(error-resource-type condition)
(error-resource-id condition)
(error-message condition)))))
(define-condition validation-error (asteroid-error)
((field
:initarg :field
:reader error-field
:initform nil
:documentation "Field that failed validation"))
(:documentation "Signaled when input validation fails")
(:report (lambda (condition stream)
(format stream "Validation Error~@[ in field ~a~]: ~a"
(error-field condition)
(error-message condition)))))
(define-condition asteroid-stream-error (asteroid-error)
((stream-type
:initarg :stream-type
:reader error-stream-type
:initform nil
:documentation "Type of stream (e.g., 'icecast', 'liquidsoap')"))
(:documentation "Signaled when stream operations fail")
(:report (lambda (condition stream)
(format stream "Stream Error~@[ (~a)~]: ~a"
(error-stream-type condition)
(error-message condition)))))
;;; Error Handling Macros
(defmacro with-error-handling (&body body)
"Wrap API endpoint code with standard error handling.
Catches specific Asteroid errors and returns appropriate HTTP status codes.
Usage:
(define-api my-endpoint () ()
(with-error-handling
(do-something-that-might-fail)))"
`(handler-case
(progn ,@body)
(not-found-error (e)
(api-output `(("status" . "error")
("message" . ,(error-message e)))
:status 404))
(authentication-error (e)
(api-output `(("status" . "error")
("message" . ,(error-message e)))
:status 401))
(authorization-error (e)
(api-output `(("status" . "error")
("message" . ,(error-message e)))
:status 403))
(validation-error (e)
(api-output `(("status" . "error")
("message" . ,(error-message e)))
:status 400))
(database-error (e)
(format t "Database error: ~a~%" e)
(api-output `(("status" . "error")
("message" . "Database operation failed"))
:status 500))
(asteroid-stream-error (e)
(format t "Stream error: ~a~%" e)
(api-output `(("status" . "error")
("message" . "Stream operation failed"))
:status 500))
(asteroid-error (e)
(format t "Asteroid error: ~a~%" e)
(api-output `(("status" . "error")
("message" . ,(error-message e)))
:status 500))
(error (e)
(format t "Unexpected error: ~a~%" e)
(api-output `(("status" . "error")
("message" . "An unexpected error occurred"))
:status 500))))
(defmacro with-db-error-handling (operation &body body)
"Wrap database operations with error handling.
Automatically converts database errors to database-error conditions.
Usage:
(with-db-error-handling \"select\"
(db:select 'tracks (db:query :all)))"
`(handler-case
(progn ,@body)
(error (e)
(error 'database-error
:message (format nil "~a" e)
:operation ,operation))))
;;; Helper Functions
(defun signal-not-found (resource-type resource-id)
"Signal a not-found-error with the given resource information."
(error 'not-found-error
:message (format nil "~a not found" resource-type)
:resource-type resource-type
:resource-id resource-id))
(defun signal-validation-error (field message)
"Signal a validation-error for the given field."
(error 'validation-error
:message message
:field field))
(defun signal-auth-error (user message)
"Signal an authentication-error for the given user."
(error 'authentication-error
:message message
:user user))
(defun signal-authz-error (required-role message)
"Signal an authorization-error with the required role."
(error 'authorization-error
:message message
:required-role required-role))

14
frontend-partials.lisp
View File

@ -1,7 +1,7 @@
(in-package :asteroid) (in-package :asteroid)
(defun icecast-now-playing (icecast-base-url) (defun icecast-now-playing (icecast-base-url)
(let* ((icecast-url (concatenate 'string icecast-base-url "/admin/stats.xml")) (let* ((icecast-url (format nil "~a/admin/stats.xml" icecast-base-url))
(response (drakma:http-request icecast-url (response (drakma:http-request icecast-url
:want-stream nil :want-stream nil
:basic-authorization '("admin" "asteroid_admin_2024")))) :basic-authorization '("admin" "asteroid_admin_2024"))))
@ -22,31 +22,29 @@
(listenersp (cl-ppcre:all-matches "<listeners>" source-section)) (listenersp (cl-ppcre:all-matches "<listeners>" source-section))
(title (if titlep (cl-ppcre:regex-replace-all ".*<title>(.*?)</title>.*" source-section "\\1") "Unknown")) (title (if titlep (cl-ppcre:regex-replace-all ".*<title>(.*?)</title>.*" source-section "\\1") "Unknown"))
(listeners (if listenersp (cl-ppcre:regex-replace-all ".*<listeners>(.*?)</listeners>.*" source-section "\\1") "0"))) (listeners (if listenersp (cl-ppcre:regex-replace-all ".*<listeners>(.*?)</listeners>.*" source-section "\\1") "0")))
`((:listenurl . ,(concatenate 'string *stream-base-url* "/asteroid.mp3")) `((:listenurl . ,(format nil "~a/asteroid.mp3" *stream-base-url*))
(:title . ,title) (:title . ,title)
(:listeners . ,(parse-integer listeners :junk-allowed t)))) (:listeners . ,(parse-integer listeners :junk-allowed t))))
`((:listenurl . ,(concatenate 'string *stream-base-url* "/asteroid.mp3")) `((:listenurl . ,(format nil "~a/asteroid.mp3" *stream-base-url*))
(:title . "Unknown") (:title . "Unknown")
(:listeners . "Unknown")))))))) (:listeners . "Unknown"))))))))
(define-api asteroid/partial/now-playing () () (define-api asteroid/partial/now-playing () ()
"Get Partial HTML with live status from Icecast server" "Get Partial HTML with live status from Icecast server"
(handler-case (handler-case
(let ((now-playing-stats (icecast-now-playing *stream-base-url*)) (let ((now-playing-stats (icecast-now-playing *stream-base-url*)))
(template-path (merge-pathnames "template/partial/now-playing.ctml"
(asdf:system-source-directory :asteroid))))
(if now-playing-stats (if now-playing-stats
(progn (progn
;; TODO: it should be able to define a custom api-output for this ;; TODO: it should be able to define a custom api-output for this
;; (api-output <clip-parser> :format "html")) ;; (api-output <clip-parser> :format "html"))
(setf (header "Content-Type") "text/html") (setf (header "Content-Type") "text/html")
(clip:process-to-string (clip:process-to-string
(plump:parse (alexandria:read-file-into-string template-path)) (load-template "partial/now-playing")
:stats now-playing-stats)) :stats now-playing-stats))
(progn (progn
(setf (header "Content-Type") "text/html") (setf (header "Content-Type") "text/html")
(clip:process-to-string (clip:process-to-string
(plump:parse (alexandria:read-file-into-string template-path)) (load-template "partial/now-playing")
:connection-error t :connection-error t
:stats nil)))) :stats nil))))
(error (e) (error (e)

25
template-utils.lisp
View File

@ -3,17 +3,32 @@
(in-package :asteroid) (in-package :asteroid)
;; Template directory configuration
(defparameter *template-directory*
(merge-pathnames "template/" (asdf:system-source-directory :asteroid))
"Base directory for all CLIP templates")
;; Template cache for parsed templates ;; Template cache for parsed templates
(defvar *template-cache* (make-hash-table :test 'equal) (defvar *template-cache* (make-hash-table :test 'equal)
"Cache for parsed template DOMs") "Cache for parsed template DOMs")
(defun template-path (name)
"Build full path to template file.
NAME can be either:
- Simple name: 'front-page' -> 'template/front-page.ctml'
- Path with subdirs: 'partial/now-playing' -> 'template/partial/now-playing.ctml'"
(merge-pathnames (format nil "~a.ctml" name) *template-directory*))
(defun load-template (name)
"Load and parse a template by name without caching.
Use this for templates that change frequently during development."
(plump:parse (alexandria:read-file-into-string (template-path name))))
(defun get-template (template-name) (defun get-template (template-name)
"Load and cache a template file" "Load and cache a template file.
Use this for production - templates are cached after first load."
(or (gethash template-name *template-cache*) (or (gethash template-name *template-cache*)
(let* ((template-path (merge-pathnames (let ((parsed (load-template template-name)))
(format nil "template/~a.ctml" template-name)
(asdf:system-source-directory :asteroid)))
(parsed (plump:parse (alexandria:read-file-into-string template-path))))
(setf (gethash template-name *template-cache*) parsed) (setf (gethash template-name *template-cache*) parsed)
parsed))) parsed)))