# HG changeset patch
# User Mike Becker <universe@uap-core.de>
# Date 1776361756 -7200
# Node ID 685af47592b5cb3bf795a262e53b5032d055e0b8
# Parent  231a79d93c0c6dc95e637e77948426bfd488cd67
add API for formatting clocks

relates to #815

diff -r 231a79d93c0c -r 685af47592b5 src/chess/rules.c
--- a/src/chess/rules.c	Thu Apr 16 19:29:11 2026 +0200
+++ b/src/chess/rules.c	Thu Apr 16 19:49:16 2026 +0200
@@ -36,6 +36,7 @@
 #include "king.h"
 
 #include <string.h>
+#include <stdio.h>
 #include <stdlib.h>
 #include <sys/time.h>
 
@@ -816,3 +817,14 @@
 
     return used_time >= total_time ? 0 : total_time - used_time;
 }
+
+void print_clk(uint16_t time, char *str, bool always_hours) {
+    unsigned hours = time / 3600;
+    unsigned minutes = (time % 3600) / 60;
+    unsigned seconds = time % 60;
+    if (hours > 0 || always_hours) {
+        snprintf(str, 9, "%02u:%02u:%02u", hours, minutes, seconds);
+    } else {
+        snprintf(str, 6, "%02u:%02u", minutes, seconds);
+    }
+}
diff -r 231a79d93c0c -r 685af47592b5 src/chess/rules.h
--- a/src/chess/rules.h	Thu Apr 16 19:29:11 2026 +0200
+++ b/src/chess/rules.h	Thu Apr 16 19:49:16 2026 +0200
@@ -256,5 +256,14 @@
 uint16_t remaining_movetime(GameInfo *gameinfo, GameState *gamestate,
         uint8_t color);
 
+/**
+ * Converts clock time to string.
+ *
+ * @param time the time to format
+ * @param str the target buffer (should be at least 10 chars large)
+ * @param always_hours if hours should always be printed
+ */
+void print_clk(uint16_t time, char *str, bool always_hours);
+
 #endif	/* RULES_H */
 
diff -r 231a79d93c0c -r 685af47592b5 src/game.c
--- a/src/game.c	Thu Apr 16 19:29:11 2026 +0200
+++ b/src/game.c	Thu Apr 16 19:49:16 2026 +0200
@@ -35,7 +35,6 @@
 #include "chess/pgn.h"
 #include <ncurses.h>
 #include <string.h>
-#include <inttypes.h>
 #include <sys/select.h>
 #include <stdio.h>
 #include <errno.h>
@@ -47,12 +46,12 @@
     if (gameinfo->timecontrol) {
         uint16_t white = remaining_movetime(gameinfo, gamestate, WHITE);
         uint16_t black = remaining_movetime(gameinfo, gamestate, BLACK);
-        mvprintw(boardy+4, boardx-1,
-            "White time: %4" PRIu16 ":%02" PRIu16,
-            white / 60, white % 60);
-        mvprintw(boardy+5, boardx-1,
-            "Black time: %4" PRIu16 ":%02" PRIu16,
-            black / 60, black % 60);
+        char clkstr[16];
+        bool always_hours = gameinfo->time >= 3600;
+        print_clk(white, clkstr, always_hours);
+        mvprintw(boardy+4, boardx-1, "White time: %s", clkstr);
+        print_clk(black, clkstr, always_hours);
+        mvprintw(boardy+5, boardx-1, "Black time: %s", clkstr);
     
         if (white == 0) {
             move(inputy, 0);