From 5f1cc081f7183e9a64d1e566fb3c06791bc8ceba Mon Sep 17 00:00:00 2001
From: Loic Coenen <loic@visua.com>
Date: Sun, 3 May 2026 18:49:46 +0000
Subject: [PATCH] feat: add MIDI clip recording and grid mode support

Co-authored-by: aider (deepseek/deepseek-coder) <aider@aider.chat>
---
 engine.c | 18 ++++++++++++++++++
 tui.c    | 20 ++++++++++++++++----
 2 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/engine.c b/engine.c
index 13978ec..5ac9820 100644
--- a/engine.c
+++ b/engine.c
@@ -44,6 +44,7 @@ static int process_callback(jack_nframes_t nframes, void *arg) {
         uint8_t velocity = data[2];
         
         if (status == 0x90 && channel == 0 && velocity > 0) {
+            // Trigger audio clip
             Action action = {
                 .type = ACTION_MIDI_NOTE_ON,
                 .data.midi_note_on = { .note = note, .velocity = velocity, 
@@ -51,6 +52,23 @@ static int process_callback(jack_nframes_t nframes, void *arg) {
             };
             engine->dispatch(action);
             
+            // Also trigger MIDI clip
+            int clip_idx = note % MAX_CLIPS;
+            Action midi_action = {
+                .type = ACTION_MIDI_CLIP_TRIGGER,
+                .data.midi_clip_trigger = { .clip_index = clip_idx }
+            };
+            engine->dispatch(midi_action);
+            
+            // Record MIDI event into MIDI clip if recording
+            MidiClip *mclip = &state.midi_clips[clip_idx];
+            if (mclip->state == CLIP_RECORDING && mclip->event_count < MAX_MIDI_EVENTS) {
+                mclip->events[mclip->event_count].note = note;
+                mclip->events[mclip->event_count].velocity = velocity;
+                mclip->events[mclip->event_count].timestamp = midi_event.time;
+                mclip->event_count++;
+            }
+            
             uint8_t out_velocity = clip_state_to_velocity(state.clips[note % MAX_CLIPS].state);
             uint8_t out_msg[3] = {0x90 | channel, note, out_velocity};
             jack_midi_event_write(midi_out_buf, midi_event.time, out_msg, 3);
diff --git a/tui.c b/tui.c
index 6f7dcd6..d29a664 100644
--- a/tui.c
+++ b/tui.c
@@ -1066,14 +1066,26 @@ static void handle_mouse_event(MEVENT *event) {
         selected_row = grid_row;
         selected_col = grid_col;
         int clip_idx = grid_to_clip_index(selected_grid, selected_row, selected_col);
-        Action action = { .type = ACTION_TRIGGER_CLIP, .data.trigger_clip = { .clip_index = clip_idx } };
-        g_dispatch(action);
+        AppState s = dispatcher_get_state();
+        if (s.show_midi_grid) {
+            Action action = { .type = ACTION_MIDI_CLIP_TRIGGER, .data.midi_clip_trigger = { .clip_index = clip_idx } };
+            g_dispatch(action);
+        } else {
+            Action action = { .type = ACTION_TRIGGER_CLIP, .data.trigger_clip = { .clip_index = clip_idx } };
+            g_dispatch(action);
+        }
     } else if (event->bstate & BUTTON3_CLICKED) {
         selected_row = grid_row;
         selected_col = grid_col;
         int clip_idx = grid_to_clip_index(selected_grid, selected_row, selected_col);
-        Action action = { .type = ACTION_RESET_CLIP, .data.reset_clip = { .clip_index = clip_idx } };
-        g_dispatch(action);
+        AppState s = dispatcher_get_state();
+        if (s.show_midi_grid) {
+            Action action = { .type = ACTION_MIDI_CLIP_RESET, .data.midi_clip_reset = { .clip_index = clip_idx } };
+            g_dispatch(action);
+        } else {
+            Action action = { .type = ACTION_RESET_CLIP, .data.reset_clip = { .clip_index = clip_idx } };
+            g_dispatch(action);
+        }
     } else if (event->bstate & BUTTON2_CLICKED) {
         selected_row = grid_row;
         selected_col = grid_col;