From d290c25ac246b6d32f35dfcd18481877d35bfaed Mon Sep 17 00:00:00 2001
From: Adam <adammegarules1@gmail.com>
Date: Tue, 4 Aug 2026 08:03:45 +0200
Subject: fixing bug and todos

---
 src/uci.cpp | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

(limited to 'src/uci.cpp')

diff --git a/src/uci.cpp b/src/uci.cpp
index ffab5bc..37a68b8 100644
--- a/src/uci.cpp
+++ b/src/uci.cpp
@@ -40,14 +40,40 @@ using namespace std;
 Move UciToMove(const string uci) {
   Position from;
   Position to;
+  PieceType promotion = NONEPIECE;
 
+  if (uci.length() != 4 && uci.length() != 5) {
+    assert(false && "expected valid uci string");
+    std::cout << "expected valid uci string\n";
+    exit(1);
+  }
   from.file = static_cast<uint8_t>(uci[0] - 'a');
   from.rank = static_cast<uint8_t>(uci[1] - '1');
 
   to.file = static_cast<uint8_t>(uci[2] - 'a');
   to.rank = static_cast<uint8_t>(uci[3] - '1');
+  if (uci.length() == 5) {
+    switch (toupper(static_cast<char>(uci[4]))) {
+    case 'Q':
+      promotion = QUEEN;
+      break;
+    case 'N':
+      promotion = KNIGHT;
+      break;
+    case 'R':
+      promotion = ROOK;
+      break;
+    case 'B':
+      promotion = BISHOP;
+      break;
+    default:
+      assert(false && "Unexpected promotion type");
+      cout << "Unexpected promotion type";
+      exit(1);
+    }
+  }
 
-  return {from, to};
+  return {from, to, promotion};
 }
 
 Game initBoard(
@@ -89,7 +115,6 @@ static void PrintBitboard(uint64_t bb, const std::string &name) {
 
     std::printf(" | %d\n", 8 - rank);
   }
-  std::cout << "  a b c d e f g h\n";
   std::cout << "0x" << std::hex << bb << std::dec << "\n\n";
 }
 
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