1 files changed, 53 insertions, 14 deletions

diff --git a/src/uci/response.c b/src/uci/response.c
index 9b3118b..a7e53fd 100644
--- a/src/uci/response.c
+++ b/src/uci/response.c
@@ -1,7 +1,10 @@
 #include <string.h>
 #include <assert.h>
 #include <stdlib.h>
+
 #include "response.h"
+#include "fen.h"
+#include "bitboard.h"
 
 void apply_option(uci_state *state, char *name, char *buffer) {
   int settings_count = sizeof(state->option_settings)/sizeof(option_setting_t);
@@ -33,7 +36,9 @@ void apply_option(uci_state *state, char *name, char *buffer) {
     } else { assert(0); }
     return;
   }
-  printf("invalid option\n");
+  if (state->debug) {
+    printf("debug: invalid option\n");
+  }
 }
 
 // examples from uci_min.txt
@@ -79,10 +84,6 @@ enum {
 };
 int current_state = STATE_INITIAL;
 
-void todo() {
-  assert(0);
-}
-
 void handle_uci(uci_state *state, ucicmd cmd) {
   if (current_state == STATE_INITIAL) {
     return handle_initial(state, cmd);
@@ -104,12 +105,14 @@ void handle_uci(uci_state *state, ucicmd cmd) {
 
 void handle_initial(uci_state *state, ucicmd cmd) {
   if (cmd.empty || strcmp(cmd.root, "uci") != 0) return;
+  // TIMEOUT NOTICE: THE FOLLOWING BLOCK SHOULDN'T TAKE MORE THAN 5 SECONDS
   printf("id name %s\n", state->name);
   printf("id author %s\n", state->author);
   int settings_count = sizeof(state->option_settings)/sizeof(option_setting_t);
   for (int i = 0; i < settings_count; i++) {
     print_setting(state->option_settings[i]);
   }
+  // ---
   printf("uciok\n");
   current_state = STATE_IDLE;
 }
@@ -136,35 +139,69 @@ void handle_idle(uci_state *state, ucicmd cmd) {
     *(--cursor) = 0;
     apply_option(state, name, buffer);
   } else if (strcmp(cmd.root, "ucinewgame") == 0) {
+    // clear game state here
   } else if (strcmp(cmd.root, "position") == 0) {
+    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");
+    }
+    else if (strcmp(mode, "fen") == 0) {
+      state->position = load_fen(ucicmd_get_arg(cmd, k++));
+    } else { assert(0); }
+
+    if (cmd.args_count >= k) return;
+    assert(ucicmd_get_arg(cmd, k++), "moves") == 0);
+    struct uci_move *moves = malloc((cmd.args_count - k) * sizeof(struct uci_move));
+    int l = 0;
+    for (; k < cmd.args_count; k++) {
+      char* move = ucicmd_get_arg(cmd, k);
+      moves[l++] = (struct uci_move) {
+        (move[0] - 'a') * 8 + (move[1] - '1'),
+        (move[2] - 'a') * 8 + (move[3] - '1')
+      };
+    }
+    // SENT state->position & struct uci_move to ENGINE
   } else if (strcmp(cmd.root, "stop") == 0) {
   } else if (strcmp(cmd.root, "quit") == 0) {
     free(cmd.args);
+
+    int settings_count = sizeof(state->option_settings)/sizeof(option_setting_t);
+    for (int i = 0; i < settings_count; i++) {
+      option_setting_t setting = state->option_settings[i];
+      if (OPTION_STRING != setting.type) continue;
+      free(setting.value.string->data);
+    }
+
     exit(0);
   } else if (strcmp(cmd.root, "isready") == 0) {
     current_state = STATE_SYNC;
   } else if (strcmp(cmd.root, "go") == 0) {
     current_state = STATE_ACTIVE;
   } else {
-    printf("Invalid command: %s\n", cmd.root);
+    printf("info violation\n");
   }
 }
 
 void handle_sync(uci_state *state, ucicmd cmd) {
-  // when i come up with some info to give: 
-  // printf("info\n");
+  // TIMEOUT NOTICE: THE FOLLOWING BLOCK SHOULDN'T TAKE MORE THAN 5 SECONDS
+ 
+
+
+  // ---
   printf("readyok\n");
   current_state = STATE_IDLE;
 }
 
 void handle_ping(uci_state *state, ucicmd cmd) {
-  // when i come up with some info to give: 
-  // printf("info\n");
-  //
+  // TIMEOUT NOTICE: THE FOLLOWING BLOCK SHOULDN'T TAKE MORE THAN 1 SECONDS
+  
   // if (TODO) {
   //   printf("bestmove\n");
   //   current_state = STATE_IDLE;
   // }
+  
+  // ---
   printf("readyok\n");
   current_state = STATE_ACTIVE;
 }
@@ -179,13 +216,15 @@ void handle_active(uci_state *state, ucicmd cmd) {
   } else if (strcmp(cmd.root, "stop") == 0) {
     current_state = STATE_HALT;
   } else {
-    printf("Invalid command: %s\n", cmd.root);
+    printf("info violation\n");
   }
 }
 
 void handle_halt(uci_state *state, ucicmd cmd) {
-  // when i come up with some info to give: 
-  // printf("info\n");
+  // TIMEOUT NOTICE: THE FOLLOWING BLOCK SHOULDN'T TAKE MORE THAN 1 SECONDS
+  
+  
+  // ---
   printf("bestmove 0000\n"); // TODO: idk get it rn
   current_state = STATE_IDLE;
 }