feat: add occurrence-aware appointment search

include/nocal/domain/event_query.hpp

@@ -6,6 +6,7 @@
 #include <cstddef>
 #include <functional>
 #include <span>
+#include <string_view>
 #include <vector>
 
 namespace nocal {
@@ -40,6 +41,9 @@ void sort_occurrences(EventOccurrences& occurrences);
 [[nodiscard]] bool event_less(const Event& lhs, const Event& rhs) noexcept;
 void sort_events(EventRefs& events);
 
+[[nodiscard]] bool event_matches_query(const Event& event,
+                                       std::string_view query);
+
 // Event and query intervals are half-open. A zero-duration event is treated as
 // an instant and belongs to the interval containing its start time.
 [[nodiscard]] bool event_overlaps(const Event& event, TimePoint begin,

include/nocal/tui/Screen.hpp

@@ -5,6 +5,7 @@
 #include <span>
 #include <string>
 #include <string_view>
+#include <vector>
 
 #include "nocal/domain/event.hpp"
 #include "nocal/domain/event_query.hpp"
@@ -40,6 +41,16 @@ struct CalendarItem {
     std::string source_time_zone;
 };
 
+struct SearchResultItem {
+    std::string focus_id;
+    std::string title;
+    std::chrono::year_month_day day;
+    std::optional<std::chrono::minutes> time_of_day;
+    bool all_day{false};
+    std::string location;
+    bool recurring{false};
+};
+
 struct ScreenState {
     std::chrono::year_month visible_month{std::chrono::year{1970}, std::chrono::month{1}};
     std::chrono::year_month_day selected_day{std::chrono::year{1970}, std::chrono::month{1},
@@ -53,6 +64,11 @@ struct ScreenState {
     std::optional<std::string> focused_event_id;
     bool show_event_details{false};
     bool confirm_delete{false};
+    bool search_prompt{false};
+    bool show_search_results{false};
+    std::string search_query;
+    std::vector<SearchResultItem> search_results;
+    std::size_t search_result_index{0};
     std::string notification;
     bool notification_is_error{false};
 };
@@ -92,6 +108,7 @@ enum class Action {
     delete_event,
     undo,
     redo,
+    search,
     quit,
 };
 

include/nocal/tui/TuiApp.hpp

@@ -42,6 +42,9 @@ public:
     [[nodiscard]] bool delete_confirmation_active() const noexcept {
         return state_.confirm_delete;
     }
+    [[nodiscard]] bool search_active() const noexcept {
+        return state_.search_prompt || state_.show_search_results;
+    }
 
 private:
     struct HistorySnapshot {
@@ -87,6 +90,10 @@ private:
     void submit_editor();
     void confirm_delete();
     void cancel_delete();
+    void begin_search();
+    void submit_search();
+    void close_search();
+    void choose_search_result();
     void set_notification(std::string message, bool error = false);
 };