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#include <string.h>
#include <assert.h>
#include "response.h"
enum {
STATE_INITIAL,
STATE_IDLE,
STATE_SYNC,
STATE_PING,
STATE_ACTIVE,
STATE_HALT,
};
int current_state = STATE_INITIAL;
int debug = false;
void todo() {
assert(0);
}
void handle_uci(ucicmd cmd) {
if (current_state == STATE_INITIAL) {
return handle_initial(cmd);
}
if (current_state == STATE_IDLE) {
return handle_idle(cmd);
}
if (current_state == STATE_SYNC) {
return handle_sync(cmd);
}
if (current_state == STATE_PING) {
return handle_ping(cmd);
}
if (current_state == STATE_ACTIVE) {
return handle_active(cmd);
}
return handle_halt(cmd);
}
void handle_initial(ucicmd cmd) {
if (cmd.empty || strcmp(cmd.root, "uci") != 0) return;
printf("uciok\n");
current_state = STATE_IDLE;
}
void handle_idle(ucicmd cmd) {
if (cmd.empty) return;
if (strcmp(cmd.root, "debug") == 0) {
debug = strcmp(ucicmd_get_arg(cmd, 0), "on") == 0;
} else if (strcmp(cmd.root, "setoption") == 0) {
} else if (strcmp(cmd.root, "ucinewgame") == 0) {
} else if (strcmp(cmd.root, "position") == 0) {
} else if (strcmp(cmd.root, "stop") == 0) {
} else if (strcmp(cmd.root, "quit") == 0) {
free(cmd.args);
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);
}
}
void handle_sync(ucicmd cmd) {
// when i come up with some info to give:
// printf("info\n");
printf("readyok\n");
current_state = STATE_IDLE;
}
void handle_ping(ucicmd cmd) {
// when i come up with some info to give:
// printf("info\n");
//
// if (TODO) {
// printf("bestmove\n");
// current_state = STATE_IDLE;
// }
printf("readyok\n");
current_state = STATE_ACTIVE;
}
void handle_active(ucicmd cmd) {
if (cmd.empty) {
return;
}
// TODO: this section will call the engine to analysis
if (strcmp(cmd.root, "isready") == 0) {
current_state = STATE_PING;
} else if (strcmp(cmd.root, "stop") == 0) {
current_state = STATE_HALT;
} else {
printf("Invalid command: %s\n", cmd.root);
}
}
void handle_halt(ucicmd cmd) {
// when i come up with some info to give:
// printf("info\n");
printf("bestmove 0000\n"); // TODO: idk get it rn
current_state = STATE_IDLE;
}
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