From 22d3cdeb43e36b36419668950443122eb1736726 Mon Sep 17 00:00:00 2001
From: Nakidai Perumenei <alex_platonov1@mail.ru>
Date: Sun, 17 Dec 2023 00:41:42 +0300
Subject: [PATCH] Repair cursor on exit for posix

---
 include/platform/getch.h |  2 ++
 src/input.c              |  1 +
 src/platform/getch.c     | 16 +++++++++++++++-
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/include/platform/getch.h b/include/platform/getch.h
index 4603264..15c66fe 100644
--- a/include/platform/getch.h
+++ b/include/platform/getch.h
@@ -4,8 +4,10 @@
 #ifdef _WIN32
 #include <conio.h>
 #define getch _getch
+inline int getchInit(void) { return 0; }
 #else
 int getch(void);
+int getchInit(void);
 #endif /* _WIN32 */
 
 #endif /* __GETCH_H__ */
diff --git a/src/input.c b/src/input.c
index f467079..e3f6d92 100644
--- a/src/input.c
+++ b/src/input.c
@@ -7,6 +7,7 @@
 
 ThreadR input(void *vargp)
 {
+    getchInit();
     int *out = ((InputArgs *)vargp)->out;
     bool *alive = ((InputArgs *)vargp)->alive;
 
diff --git a/src/platform/getch.c b/src/platform/getch.c
index 9828ccd..954a204 100644
--- a/src/platform/getch.c
+++ b/src/platform/getch.c
@@ -2,11 +2,14 @@
 #include <unistd.h>
 #include <termios.h>
 #include <stdio.h>
+#include <stdlib.h>
+
+static struct termios DefaultState = {0};
 
 int getch(void)
 {
     char buf = 0;
-    struct termios old = { 0 };
+    struct termios old = {0};
     fflush(stdout);
     if (tcgetattr(0, &old) < 0) perror("tcsetattr()");
     old.c_lflag    &= ~ICANON;   // local modes = Non Canonical mode
@@ -21,4 +24,15 @@ int getch(void)
     return (int)buf;
 }
 
+static void resetTerminalState(void)
+{
+    tcsetattr(0, TCSANOW, &DefaultState);
+}
+
+int getchInit(void)
+{
+    tcgetattr(0, &DefaultState);
+    return atexit(resetTerminalState);
+}
+
 #endif /* !_WIN32 */