From 3d7ddaf18419c983dd179b50eabe253c3eee8194 Mon Sep 17 00:00:00 2001
From: erdgeist <erdgeist@erdgeist.org>
Date: Wed, 8 Jul 2026 11:55:25 +0200
Subject: WIP: dynamic rrule builder

---
 app/views/events/edit.html.erb        | 30 ++++++++++++++++++++++++++++--
 public/javascripts/admin_interface.js |  6 +++++-
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/app/views/events/edit.html.erb b/app/views/events/edit.html.erb
index 5aee501..d37c299 100644
--- a/app/views/events/edit.html.erb
+++ b/app/views/events/edit.html.erb
@@ -18,8 +18,34 @@
     <%= f.datetime_select :end_time %>
   </p>
   <p>
-    <%= f.label :rrule %><br />
-    <%= f.text_field :rrule %>
+    <%= f.label :rrule, "Recurrence" %>
+    <div id="rrule_builder">
+      <p>
+        <label><%= radio_button_tag "rrule_freq", "weekly", true %> Weekly</label>
+        <label><%= radio_button_tag "rrule_freq", "monthly" %> Monthly</label>
+      </p>
+      <div id="rrule_weekly_options">
+        <p><label><%= check_box_tag "rrule_biweekly" %> Every 2 weeks</label></p>
+        <p>
+          <% %w[MO TU WE TH FR SA SU].each do |code| %>
+            <label><%= check_box_tag "rrule_byday_#{code}" %> <%= RruleHumanizer::WEEKDAY_NAMES_ABBR[:de][code] %></label>
+          <% end %>
+        </p>
+      </div>
+      <div id="rrule_monthly_options" style="display: none;">
+        <p><label><%= check_box_tag "rrule_monthly_ordinal" %> On a specific weekday each month</label></p>
+        <p id="rrule_ordinal_fields" style="display: none;">
+          <%= select_tag "rrule_ordinal", options_for_select([["1.", 1], ["2.", 2], ["3.", 3], ["4.", 4], ["letzter", -1], ["vorletzter", -2]]) %>
+          <%= select_tag "rrule_ordinal_day", options_for_select(%w[MO TU WE TH FR SA SU].map { |c| [RruleHumanizer::WEEKDAY_NAMES[:de][c], c] }) %>
+        </p>
+      </div>
+      <p>
+        <label><%= check_box_tag "rrule_exclude_month" %> Except in one month</label>
+        <%= select_tag "rrule_excluded_month", options_for_select((1..12).map { |m| [RruleHumanizer::MONTH_NAMES[:de][m-1], m] }), style: "display: none;" %>
+      </p>
+      <span class="field_hint">Builds the field below automatically. If your pattern is more complex than this covers, just edit it directly below - these controls won't touch it unless you use them.</span>
+    </div>
+    <%= f.text_field :rrule, id: "event_rrule" %>
   </p>
   <p>
     <%= f.label :tag_list, "Tags" %><br />
diff --git a/public/javascripts/admin_interface.js b/public/javascripts/admin_interface.js
index 450438f..cb32d5a 100644
--- a/public/javascripts/admin_interface.js
+++ b/public/javascripts/admin_interface.js
@@ -50,7 +50,11 @@ $(document).ready(function () {
   if ($("#move_to_search_term").length != 0) {
     move_to_search.initialize_search();
   }
-  
+
+  if ($("#rrule_builder").length != 0) {
+    rrule_builder.initialize();
+  }
+
   if ($('#recent_changes_toggle').length != 0) {
     hide_all();
     $('#recent_changes_toggle').attr("class", "selected");
-- 
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