1 files changed, 101 insertions, 13 deletions
diff --git a/src/main.cpp b/src/main.cpp
index 5be1194..261c19d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,17 +1,41 @@
+#include "board.hpp"
+#include "fen.hpp"
+#include "moves.hpp"
+#include <algorithm>
+#include <cctype>
+#include <cstdint>
 #include <cstdio>
 #include <cstdlib>
+#include <print>
 #include <string>
+#include <vector>
 
-#include "board.hpp"
-#include "moves.hpp"
-
-Piece NonePiece = {
-    false,
-    NONE,
-    false,
-};
 #include <iostream>
 
+bool isValidChessRank(char rank) {
+  if (rank >= '1' && rank <= '8') {
+    return true;
+  } else {
+    return false;
+  }
+}
+bool isValidChessFile(char rank) {
+  if (rank >= 'A' && rank <= 'H') {
+    return true;
+  } else {
+    return false;
+  }
+}
+void setAllPiecesToEmpty(board *b) {
+  Piece NonePiece = {
+      false,
+      NONE,
+      false,
+  };
+  for (int i = 0; i < 64; i++) {
+    b->pieces[i] = NonePiece;
+  };
+}
 void PrintMoves(const std::vector<Move> &moves) {
   std::cout << "Moves (" << moves.size() << "):\n";
 
@@ -37,12 +61,76 @@ int main(int argc, char **argv) {
   b.castle = "";
   b.halfMoveClock = 0;
   b.MoveClock = 0;
-  for (int i = 0; i < 64; i++) {
-    b.pieces[i] = NonePiece;
-  };
   setBoardFen(startingFen, &b);
   printBoard(&b);
-  auto moves = GetLegalMoves(&b);
-  PrintMoves(moves);
+  while (true) {
+    std::cout << "> ";
+    std::string command;
+    std::cin >> command;
+    std::cout << command << "\n";
+
+    transform(command.begin(), command.end(), command.begin(), ::toupper);
+    if (command == "EXIT") {
+      std::println();
+      std::cout << "Exiting...\n";
+      return 0;
+    }
+
+    if (command.length() != 4) {
+      std::cout << "Unknown Command, use EXIT to exit";
+      std::println();
+      continue;
+    }
+    if (!isValidChessFile(command[0])) {
+      std::cout << "ERROR: Expected valid file at first place";
+      std::println();
+      continue;
+    }
+
+    if (!isValidChessRank(command[1])) {
+      std::cout << "ERROR: Expected valid rank at second place";
+      std::println();
+      continue;
+    }
+
+    if (!isValidChessFile(command[2])) {
+      std::cout << "ERROR: Expected valid file at third place";
+      std::println();
+      continue;
+    }
+
+    if (!isValidChessRank(command[3])) {
+      std::cout << "ERROR: Expected valid rank at four place";
+      std::println();
+      continue;
+    }
+
+    // we know its a valid chess pos
+    int fromFile = command[0] - 'A';
+    int fromRank = '8' - command[1];
+    int toFile = command[2] - 'A';
+    int toRank = '8' - command[3];
+    std::cout << fromFile << "\n";
+    std::cout << fromRank << "\n";
+    std::cout << toFile << "\n";
+    std::cout << toRank << "\n";
+    Move move = {
+        {static_cast<uint8_t>(fromRank), static_cast<uint8_t>(fromFile)},
+        {static_cast<uint8_t>(toRank), static_cast<uint8_t>(toFile)}};
+
+    auto moves = GetLegalMoves(&b);
+    if (std::ranges::find(moves, move) != moves.end()) {
+      std::cout << "Move is legal!\n";
+    } else {
+      std::cout << "Move is not legal!\n";
+      PrintMoves(moves);
+      continue;
+    }
+    std::println();
+    // PlayMove(move, &b); // todo implement
+    b.MoveClock++;
+    b.turn = !b.turn;
+    printBoard(&b);
+  }
   return EXIT_SUCCESS;
 }