From b72c959a5466bf7272c934c1b69162878526ff86 Mon Sep 17 00:00:00 2001
From: Your Name <j@842.be>
Date: Tue, 22 Apr 2025 20:11:09 +1200
Subject: [PATCH] esc is slow

---
 src/interactive/interactive.cpp | 51 ++++++++++++++++++++++-----------
 1 file changed, 34 insertions(+), 17 deletions(-)

diff --git a/src/interactive/interactive.cpp b/src/interactive/interactive.cpp
index 944349e..82bd173 100644
--- a/src/interactive/interactive.cpp
+++ b/src/interactive/interactive.cpp
@@ -139,26 +139,46 @@ std::string fullscreen_window::set_input_multiple_choice(std::string prompt, std
     
     int selected = 0;
     std::string filter = "";
+    std::string last_filter = "";
     auto last_key_time = std::chrono::steady_clock::now();
     int scroll_offset = 0;
-    std::vector<std::string> last_filtered_choices;
     int last_selected = -1;
     int last_scroll_offset = -1;
     
+    // Pre-compute lowercase versions of choices for case-insensitive matching
+    std::vector<std::string> lowercase_choices;
+    lowercase_choices.reserve(choices.size());
+    for (const auto& choice : choices) {
+        std::string lower;
+        lower.reserve(choice.size());
+        std::transform(choice.begin(), choice.end(), std::back_inserter(lower), ::tolower);
+        lowercase_choices.push_back(std::move(lower));
+    }
+    
+    // Initial filtered choices (all choices)
+    std::vector<std::string> filtered_choices = choices;
+    
     while (true) {
-        // Filter choices based on input
-        std::vector<std::string> filtered_choices;
-        for (const auto& choice : choices) {
-            if (filter.empty() || choice.find(filter) == 0) {
-                filtered_choices.push_back(choice);
+        // Only recalculate filtered choices if filter changed
+        if (filter != last_filter) {
+            if (filter.empty()) {
+                filtered_choices = choices;
+            } else {
+                filtered_choices.clear();
+                // Convert filter to lowercase once
+                std::string lowercase_filter;
+                lowercase_filter.reserve(filter.size());
+                std::transform(filter.begin(), filter.end(), std::back_inserter(lowercase_filter), ::tolower);
+                
+                // Filter using pre-computed lowercase versions
+                for (size_t i = 0; i < choices.size(); ++i) {
+                    if (lowercase_choices[i].find(lowercase_filter) == 0) {
+                        filtered_choices.push_back(choices[i]);
+                    }
+                }
             }
         }
         
-        if (filtered_choices.empty()) {
-            filtered_choices = choices;
-            filter = "";
-        }
-        
         // Get window dimensions
         int max_y, max_x;
         getmaxyx(input_win, max_y, max_x);
@@ -179,11 +199,8 @@ std::string fullscreen_window::set_input_multiple_choice(std::string prompt, std
             }
         }
         
-        // Only redraw if something changed
-        if (filtered_choices != last_filtered_choices || 
-            selected != last_selected || 
-            scroll_offset != last_scroll_offset) {
-            
+        // Only redraw if selection or scroll changed
+        if (selected != last_selected || scroll_offset != last_scroll_offset || last_filter != filter) {
             // Clear the input window except for the prompt
             werase(input_win);
             box(input_win, 0, 0);
@@ -218,9 +235,9 @@ std::string fullscreen_window::set_input_multiple_choice(std::string prompt, std
             wrefresh(input_win);
             
             // Update last state
-            last_filtered_choices = filtered_choices;
             last_selected = selected;
             last_scroll_offset = scroll_offset;
+            last_filter = filter;
         }
         
         int ch = wgetch(input_win);