From 933d7a8c1b87be1857afdd58a2c245cf758eb3a5 Mon Sep 17 00:00:00 2001
From: Connor Johnstone <connor.johnstone@arcfield.com>
Date: Wed, 24 Sep 2025 11:20:43 -0400
Subject: [PATCH] Fix calendar visibility preservation during event updates
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Prevent hidden calendars from becoming visible when events are modified via drag-and-drop or other update operations. The refresh mechanism was overwriting frontend visibility state with fresh server data that doesn't include visibility settings.

Changes:
- Preserve existing calendar visibility and color settings during refresh_calendar_data
- Maintain smart fallback for saved colors on new calendars
- Ensure calendar visibility state persists across event modifications

This fixes the issue where users would hide calendars, then see them reappear after dragging events.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 frontend/src/app.rs | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/frontend/src/app.rs b/frontend/src/app.rs
index 12f57ed..9e3de2c 100644
--- a/frontend/src/app.rs
+++ b/frontend/src/app.rs
@@ -295,7 +295,21 @@ pub fn App() -> Html {
                     if !password.is_empty() {
                         match calendar_service.fetch_user_info(&token, &password).await {
                             Ok(mut info) => {
-                                // Apply saved colors
+                                // Preserve existing calendar settings (colors and visibility) from current state
+                                if let Some(current_info) = (*user_info).clone() {
+                                    for current_cal in &current_info.calendars {
+                                        for cal in &mut info.calendars {
+                                            if cal.path == current_cal.path {
+                                                // Preserve visibility setting
+                                                cal.is_visible = current_cal.is_visible;
+                                                // Preserve color setting
+                                                cal.color = current_cal.color.clone();
+                                            }
+                                        }
+                                    }
+                                }
+                                
+                                // Apply saved colors as fallback for new calendars
                                 if let Ok(saved_colors_json) =
                                     LocalStorage::get::<String>("calendar_colors")
                                 {
@@ -304,13 +318,15 @@ pub fn App() -> Html {
                                     {
                                         for saved_cal in &saved_info.calendars {
                                             for cal in &mut info.calendars {
-                                                if cal.path == saved_cal.path {
+                                                if cal.path == saved_cal.path && cal.color == "#3B82F6" {
+                                                    // Only apply saved color if it's still the default
                                                     cal.color = saved_cal.color.clone();
                                                 }
                                             }
                                         }
                                     }
                                 }
+                                
                                 // Add timestamp to force re-render
                                 info.last_updated = (js_sys::Date::now() / 1000.0) as u64;
                                 user_info.set(Some(info));