From 2761f8a533e2b025f209222a1e4ec70b91c7e8ee Mon Sep 17 00:00:00 2001
From: Aargh Rai <aargh.rai+git@gmail.com>
Date: Tue, 7 Jul 2026 23:37:41 +0530
Subject: thread spawning from the uci settings & best move & ponder is now
 sent

uci setup is ALMOST done, i can sense it
---
 src/uci/response.c | 49 ++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 40 insertions(+), 9 deletions(-)

(limited to 'src/uci/response.c')

diff --git a/src/uci/response.c b/src/uci/response.c
index dbf4614..6208a54 100644
--- a/src/uci/response.c
+++ b/src/uci/response.c
@@ -154,10 +154,22 @@ void handle_idle(
     int k = 0;
     char* mode = ucicmd_get_arg(cmd, 0);
     if (strcmp(mode, "startpos") == 0) {
-      state->position = load_fen("rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1");
+      struct fen_load fen = load_fen(
+        "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
+      );
+      if (fen.failed) {
+        printf("info invalid fen\n");
+        return;
+      }
+      state->position = fen.position;
     }
     else if (strcmp(mode, "fen") == 0) {
-      state->position = load_fen(ucicmd_get_arg(cmd, k++));
+      struct fen_load fen = load_fen(ucicmd_get_arg(cmd, k++));
+      if (fen.failed) {
+        printf("info invalid fen\n");
+        return;
+      }
+      state->position = fen.position;
     } else { assert(0); }
 
     if (cmd.args_count >= k) return;
@@ -185,7 +197,6 @@ void handle_idle(
         (move[2] - 'a') * 8 + (move[3] - '1')
       };
     }
-    state->go = 1;
   } else if (strcmp(cmd.root, "stop") == 0) {
   } else if (strcmp(cmd.root, "quit") == 0) {
     free(cmd.args);
@@ -197,10 +208,11 @@ void handle_idle(
       free(setting.value.string->data);
     }
 
-    exit(0);
+    atomic_store(&state->quit, 1);
   } else if (strcmp(cmd.root, "isready") == 0) {
     current_state = STATE_SYNC;
   } else if (strcmp(cmd.root, "go") == 0) {
+    atomic_store(&state->go, 1);
     current_state = STATE_ACTIVE;
   } else {
     printf("info violation\n");
@@ -238,7 +250,6 @@ void handle_active(
   for (int i = 0; i < engine_messages->count; i++) {
     struct engine_message *old = engine_messages->data[i];
     if (!old->ready) continue;
-    printf("INITIALIZED\n");
     old->ready = 0;
 
     printf(
@@ -265,10 +276,30 @@ void handle_active(
       );
     }
     printf("\n");
-    // // info depth 1 seldepth 1 multipv 1 score cp 18 nodes 20 nps 4000 hashfull 0 tbhits 0 time 5 pv e2e4
-    //
-    // engine_messages->data[i] = old->next;
-    // free(old);
+
+    if (old->best_move.from != 0 && old->best_move.to != 0) {
+      printf(
+        "bestmove %c%c%c%c",
+        (old->best_move.from / 8) + 'a',
+        (old->best_move.from % 8) + '1',
+        (old->best_move.to / 8) + 'a',
+        (old->best_move.to % 8) + '1'
+      );
+      if (old->ponder.from != 0 && old->ponder.to != 0) {
+        printf(
+          " ponder %c%c%c%c",
+          (old->ponder.from / 8) + 'a',
+          (old->ponder.from % 8) + '1',
+          (old->ponder.to / 8) + 'a',
+          (old->ponder.to % 8) + '1'
+        );
+      }
+      printf("\n");
+    }
+
+    engine_messages->data[i] = old->next;
+    free(old->pv.moves);
+    free(old);
   }
   // TODO: this section will call the engine to analysis
   if (cmd.empty) {
-- 
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