From 066295df2f19febefed30c1f2615b8ad0f6f03cc Mon Sep 17 00:00:00 2001
From: kichikuou <KichikuouChrome@gmail.com>
Date: Sat, 23 Oct 2021 09:18:13 +0900
Subject: [PATCH] Windows: Open folder chooser only if current folder has no
 ALD files

---
 src/win/dialog.c | 9 +++++++++
 src/win/dialog.h | 1 +
 src/xsystem35.c  | 2 +-
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/win/dialog.c b/src/win/dialog.c
index 502b1a5..382ee61 100644
--- a/src/win/dialog.c
+++ b/src/win/dialog.c
@@ -40,6 +40,15 @@ static int CALLBACK select_game_callback(HWND hwnd, UINT uMsg, LPARAM lParam, LP
 	return 0;
 }
 
+boolean current_folder_has_ald(void) {
+	WIN32_FIND_DATA find_data;
+	HANDLE hFind = FindFirstFile("*.ALD", &find_data);
+	if (hFind == INVALID_HANDLE_VALUE)
+		return FALSE;
+	FindClose(hFind);
+	return TRUE;
+}
+
 boolean select_game_folder(void) {
 	char title[256];
 	LoadString(GetModuleHandle(NULL), IDS_CHOOSE_GAME_FOLDER, title, sizeof(title));
diff --git a/src/win/dialog.h b/src/win/dialog.h
index 97cfe9f..683fdd2 100644
--- a/src/win/dialog.h
+++ b/src/win/dialog.h
@@ -24,6 +24,7 @@
 struct inputstring_param;
 struct inputnum_param;
 
+boolean current_folder_has_ald(void);
 boolean select_game_folder(void);
 boolean input_string(struct inputstring_param *p);
 boolean input_number(struct inputnum_param *p);
diff --git a/src/xsystem35.c b/src/xsystem35.c
index b2e6d7d..535a5ee 100644
--- a/src/xsystem35.c
+++ b/src/xsystem35.c
@@ -486,7 +486,7 @@ int main(int argc, char **argv) {
 		chdir(argv[2]);
 #endif
 #ifdef _WIN32
-	if (argc == 1) {
+	if (argc == 1 && !current_folder_has_ald()) {
 		if (!select_game_folder())
 			return 0;
 	}