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(defpackage :logikorr-ht
(:use #:hunchentoot #:common-lisp #:json #:yaclml))
(in-package #:logikorr-ht)
(defstruct student
(id -1 :type integer)
(score #() :type vector)
(last-name "" :type (or string null))
(first-name "" :type (or string null)))
(defparameter *directory* "/Users/mulk/Dropbox/Projekte/Logikorr/")
(defparameter *in-locked-context-p* nil)
(defvar *students* nil)
(defvar *database* (merge-pathnames "blatt3.txt" *directory*))
(defvar *lock* (merge-pathnames #p".mulk-db-lock" *database*))
(setq *hunchentoot-default-external-format*
(flexi-streams:make-external-format :utf-8))
(defmacro with-authentication (() &body body)
`(call-with-authentication (lambda () ,@body)))
(defun call-with-authentication (thunk)
(multiple-value-bind (name password)
(authorization)
(if (and (string= name "test") (string= password "test"))
(funcall thunk)
(progn
(require-authorization "Logik-Ergebniseingabe")))))
(defmacro with-data-lock (() &body body)
`(call-with-data-lock (lambda () ,@body)))
(defun call-with-data-lock (thunk)
(cond (*in-locked-context-p*
(funcall thunk))
(t
(let (lock)
(unwind-protect
(progn
(loop until (setq lock (open *lock* :direction :output :if-exists nil :if-does-not-exist :create)))
(let ((*in-locked-context-p* t)) (funcall thunk)))
(progn (ignore-errors (delete-file *lock*))
(ignore-errors (close lock))))))))
(defun find-students ()
(with-data-lock ()
(setq
*students*
(with-open-file (in *database* :external-format :utf-8)
(loop for line = (read-line in nil nil nil)
with id = 0
while line
unless (equal (remove #\Space line) "")
collect (let* ((name line)
(score-line (read-line in t))
(score (read-from-string score-line))
(comma (position #\, name))
(last-name (if comma (subseq name 0 comma) nil))
(first-name (if comma (subseq name (+ comma 2)) name)))
(make-student :id id
:score (make-array (list (length score))
:initial-contents score
:adjustable t
:fill-pointer t)
:last-name last-name
:first-name first-name))
and do (incf id))))))
(define-easy-handler (show-main-page :uri "/") ()
(with-authentication ()
(let ((students (find-students)))
(ignore-errors (setf (header-out :content-type) "text/html; charset=UTF-8"))
(with-yaclml-output-to-string
(<:html
(<:head
(<:title "Logik I: Korrekturergebnisse")
(<:script :type "text/javascript"
:src "js/prototype.js")
(<:script :type "text/javascript"
:src "js/scriptaculous.js")
(<:link :type "text/css" :rel "stylesheet" :href "style.css")
(<:script :type "text/javascript" :src "http://yui.yahooapis.com/3.0.0/build/yui/yui-min.js")
(<:script :type "text/javascript" :src "logikorr.js")
(<:script :type "text/javascript" :src "logikorr-completion-data.js"))
(<:body
(<:h1 "Logik I: Korrekturergebnisse")
(<:h2 "Neue Ergebnisse")
(<:table :id "ergebnisse")
(<:h2 "Bestehende Ergebnisse")
(<:table
(<:tr
(<:th "ID") (<:th "Punkte") (<:th "Nachname") (<:th "Vorname"))
(dolist (student students)
(with-slots (id score last-name first-name) student
(<:tr (<:td (<:as-html id))
(<:td (<:as-html score))
(<:td (<:as-html last-name))
(<:td (<:as-html first-name))))))))))))
(define-easy-handler (logikorr.js :uri "/logikorr.js") ()
(handle-static-file (relpath "logikorr.js")))
(define-easy-handler (logikorr-completion-data.js :uri "/logikorr-completion-data.js") ()
(with-authentication ()
(ignore-errors (setf (header-out :content-type) "text/javascript; charset=UTF-8"))
(format nil "~%autocompleteList = ~A"
(json:encode-json-to-string (mapcar (lambda (x) (unsplit-name (student-first-name x) (student-last-name x)))
(find-students))))))
(define-easy-handler (style.css :uri "/style.css") ()
(setf (header-out :content-type) "text/css; charset=UTF-8")
"body {
z-index: 0;
}
div.autocomplete {
position:absolute;
width:350px;
background-color:white;
border:1px solid #888;
margin:0;
padding:0;
z-index: 100;
}
div.autocomplete ul {
list-style-type:none;
margin:0;
padding:0;
}
div.autocomplete ul li.selected { background-color: #ffb;}
div.autocomplete ul li {
list-style-type:none;
display:block;
margin:0;
padding:2px;
height:32px;
cursor:pointer;
}")
(defun relpath (path)
(merge-pathnames path (make-pathname :directory *directory*)))
(define-easy-handler (s1.js :uri "/js/builder.js") ()
(handle-static-file (relpath "js/builder.js")))
(define-easy-handler (s2.js :uri "/js/scriptaculous.js") ()
(handle-static-file (relpath "js/scriptaculous.js")))
(define-easy-handler (s3.js :uri "/js/controls.js") ()
(handle-static-file (relpath "js/controls.js")))
(define-easy-handler (s4.js :uri "/js/dragdrop.js") ()
(handle-static-file (relpath "js/dragdrop.js")))
(define-easy-handler (s5.js :uri "/js/effects.js") ()
(handle-static-file (relpath "js/effects.js")))
(define-easy-handler (s6.js :uri "/js/prototype.js") ()
(handle-static-file (relpath "js/prototype.js")))
(define-easy-handler (scriptaculous.js :uri "/js/scriptaculous.js") ()
(handle-static-file (relpath "js/scriptaculous.js")))
(define-easy-handler (s8.js :uri "/js/slider.js") ()
(handle-static-file (relpath "js/slider.js")))
(define-easy-handler (s9.js :uri "/js/sound.js") ()
(handle-static-file (relpath "js/sound.js")))
(define-easy-handler (s10.js :uri "/js/unittest.js") ()
(handle-static-file (relpath "js/unittest.js")))
(defun unsplit-name (first last)
(if last
(format nil "~A, ~A" last first)
first))
(defun find-student-by-name (name)
(dolist (student (find-students))
(when (string= name (unsplit-name (student-first-name student)
(student-last-name student)))
(return-from find-student-by-name student))))
(defun find-student-by-id (id)
(find id (find-students) :key #'student-id))
(define-easy-handler (find-student :uri "/find-student") (name)
(with-authentication ()
(let ((student (find-student-by-name name)))
(setf (header-out :content-type) "text/json; charset=UTF-8")
(with-slots (id first-name last-name score) student
(with-output-to-string (*standard-output*)
(json:encode-json-plist
(list :id id
:first-name first-name
:last-name last-name
:score score)))))))
(define-easy-handler (update-student-score :uri "/update-student-score")
(id score-number score)
(with-authentication ()
(with-data-lock ()
(let ((student (find-student-by-id (parse-integer id)))
(index (parse-integer score-number)))
(loop while (<= (length (student-score student)) index)
do (vector-push-extend 0 (student-score student)))
(setf (elt (student-score student) index)
(let ((*read-eval* nil))
(let ((score (read-from-string score)))
(check-type score number)
score))))
(write-database)))
"\"OK\"")
(defun write-database ()
(with-data-lock ()
(unless *students*
(return-from write-database))
(with-open-file (out *database* :external-format :utf-8 :direction :output :if-exists :new-version #+(or) :supersede)
(dolist (student *students*)
(if (student-last-name student)
(format out "~&~A, ~A" (student-last-name student) (student-first-name student))
(format out "~&~A" (student-first-name student)))
(format out "~&~A" (coerce (student-score student) 'list))
(format out "~%~%")))))
(defun start-logikorr ()
(start (make-instance 'acceptor :port 8080)))
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