1 files changed, 65 insertions, 0 deletions
diff --git a/js/dav/lib/template/prop.js b/js/dav/lib/template/prop.js
new file mode 100644
index 00000000..b04258cf
--- /dev/null
+++ b/js/dav/lib/template/prop.js
@@ -0,0 +1,65 @@
+import * as ns from '../namespace';
+
+/**
+ * @param {Object} filter looks like
+ *
+ *     {
+ *       type: 'comp-filter',
+ *       attrs: {
+ *         name: 'VCALENDAR'
+ *       }
+ *     }
+ *
+ * Or maybe
+ *
+ *     {
+ *       type: 'time-range',
+ *       attrs: {
+ *         start: '20060104T000000Z',
+ *         end: '20060105T000000Z'
+ *       }
+ *     }
+ *
+ * You can nest them like so:
+ *
+ *     {
+ *       type: 'comp-filter',
+ *       attrs: { name: 'VCALENDAR' },
+ *       children: [{
+ *         type: 'comp-filter',
+ *         attrs: { name: 'VEVENT' },
+ *         children: [{
+ *           type: 'time-range',
+ *           attrs: { start: '20060104T000000Z', end: '20060105T000000Z' }
+ *         }]
+ *       }]
+ *     }
+ */
+export default function prop(item) {
+  if (!item.children || !item.children.length) {
+    if (typeof item.value === "undefined") {
+      return `<${xmlnsPrefix(item.namespace)}:${item.name} />`;
+    }
+    return `<${xmlnsPrefix(item.namespace)}:${item.name}>${item.value}</${xmlnsPrefix(item.namespace)}:${item.name}>`;
+  }
+
+  let children = item.children.map(prop);
+  return `<${xmlnsPrefix(item.namespace)}:${item.name}>
+            ${children}
+          </${xmlnsPrefix(item.namespace)}:${item.name}>`;
+}
+
+function xmlnsPrefix(namespace) {
+  switch (namespace) {
+    case ns.DAV:
+      return 'd';
+    case ns.CALENDAR_SERVER:
+      return 'cs';
+    case ns.CALDAV:
+      return 'c';
+    case ns.CARDDAV:
+      return 'card';
+    default:
+      throw new Error('Unrecognized xmlns ' + namespace);
+  }
+}