From 8ee9a7311ce7ddab3c8be062fc536766ab77345f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hugo=20H=C3=B6rnquist?= <hugo@lysator.liu.se>
Date: Sun, 12 Jul 2020 23:28:51 +0200
Subject: Event creation from HTML works again.

---
 module/entry-points/server.scm | 32 +++++++++++++++++++++++++-------
 static/script.js               | 35 +++++++----------------------------
 2 files changed, 32 insertions(+), 35 deletions(-)

diff --git a/module/entry-points/server.scm b/module/entry-points/server.scm
index 6e038526..fc832c13 100644
--- a/module/entry-points/server.scm
+++ b/module/entry-points/server.scm
@@ -23,6 +23,8 @@
   :use-module (web http)
 
   :use-module (sxml simple)
+  :use-module (sxml xpath)
+  :use-module (sxml namespace)
 
   :use-module (server util)
   :use-module (server macro)
@@ -136,15 +138,31 @@
              (return (build-response code: 400)
                      (format #f "No calendar with name [~a]\r\n" cal)))
 
+           ;; Expected form of data (but in XML) is:
+           ;; @example
+           ;; (*TOP*
+           ;;  (*PI* ...)
+           ;;  (icalendar (@ (xmlns "..."))
+           ;;   (vcalendar
+           ;;    (vevent ...))))
+           ;; @end example
+           ;; However, *PI* will probably be omited, and currently events
+           ;; are sent without the vcalendar part. Earlier versions
+           ;; Also omitted the icalendar part. And I'm not sure if the
+           ;; *TOP* node is a required part of the sxml.
+
            (let ((event
                    ((@ (vcomponent parse xcal) sxcal->vcomponent)
-                    ;; TODO different forms?
-                    (cadr ; removes *TOP*
-                     (catch 'parser-error
-                       (lambda () (xml->sxml data))
-                       (lambda (err port . args)
-                         (return (build-response code: 400)
-                                 (format #f "XML parse error ~{~a~}\r\n" args))))))))
+                    (catch 'parser-error
+                      (lambda ()
+                        (move-to-namespace
+                         ;; TODO Multiple event components
+                         (car ((sxpath '(// IC:vevent))
+                               (xml->sxml data namespaces: '((IC . "urn:ietf:params:xml:ns:icalendar-2.0")))))
+                         #f))
+                      (lambda (err port . args)
+                        (return (build-response code: 400)
+                                (format #f "XML parse error ~{~a~}\r\n" args)))))))
 
              (unless (eq? 'VEVENT (type event))
                (return (build-response code: 400)
diff --git a/static/script.js b/static/script.js
index dd86154b..de73ba05 100644
--- a/static/script.js
+++ b/static/script.js
@@ -221,37 +221,12 @@ function close_all_popups () {
     }
 }
 
-function sxml_to_xml(doc, tree) {
+async function create_event (event) {
 
-    if (typeof(tree) == 'string') return tree;
-
-    let [tag, ...body] = tree;
-    let node = doc.createElement(tag);
-    for (const child of body) {
-        node.append(sxml_to_xml(doc, child));
-    }
-    return node;
-}
-
-// FormData
-async function create_event (date, fd) {
-
-    let tree = ['vevent',
-                ['properties',
-                 ['dtstart', ['date-time', date + "T" + fd.get("dtstart") + ":00"]],
-                 ['dtend', ['date-time', date + "T" + fd.get("dtend") + ":00"]],
-                 ['summary', ['text', fd.get("summary")]]]]
-
-    if (fd.get("description")) {
-        tree[1].push(['description', ['text', fd.get("description")]])
-    }
-
-    let xmldoc = document.implementation.createDocument("", "", null)
-    xml = sxml_to_xml(xmldoc, tree).outerHTML;
+    let xml = event.getElementsByTagName("icalendar")[0].outerHTML
 
     console.log(xml);
 
-
     let data = new URLSearchParams();
     data.append("cal", "Calendar");
     data.append("data", xml);
@@ -325,7 +300,11 @@ function place_in_edit_mode (event) {
     article.appendChild(submit);
 
 
-    let wrappingForm = makeElement('form');
+    let wrappingForm = makeElement('form', {
+        onsubmit: function (e) {
+            create_event(event);
+            return false;
+        }});
     article.replaceWith(wrappingForm);
     wrappingForm.appendChild(article);
 
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