1 files changed, 77 insertions, 0 deletions
diff --git a/saves.c b/saves.c
new file mode 100644
index 0000000..18d7d9b
--- /dev/null
+++ b/saves.c
@@ -0,0 +1,77 @@
+#include <string.h>
+#include <stdlib.h>
+#include "saves.h"
+#include "util.h"
+
+#ifdef _WIN32
+#define localtime_r(a,b) localtime(a)
+#include <windows.h>
+#endif
+//0123456789012345678901234678
+//Slot N - December 31st, XXXX
+#define MAX_DESC_SIZE 40
+
+char *get_slot_name(system_header *system, uint32_t slot_index, char *ext)
+{
+	if (!system->save_dir) {
+		return NULL;
+	}
+	char *fname;
+	if (slot_index < 10) {
+		size_t name_len = strlen("slot_N.") + strlen(ext) + 1;
+		fname = malloc(name_len);
+		snprintf(fname, name_len, "slot_%d.%s", slot_index, ext);
+	} else {
+		size_t name_len = strlen("quicksave.") + strlen(ext) + 1;
+		fname = malloc(name_len);
+		snprintf(fname, name_len, "quicksave.%s", ext);
+	}
+	char const *parts[] = {system->save_dir, PATH_SEP, fname};
+	char *ret = alloc_concat_m(3, parts);
+	free(fname);
+	return ret;
+}
+
+save_slot_info *get_slot_info(system_header *system, uint32_t *num_out)
+{
+	save_slot_info *dst = calloc(11, sizeof(save_slot_info));
+	time_t modtime;
+	struct tm ltime;
+	for (uint32_t i = 0; i <= QUICK_SAVE_SLOT; i++)
+	{
+		char * cur = dst[i].desc = malloc(MAX_DESC_SIZE);
+		char * fname = get_slot_name(system, i, "state");
+		modtime = get_modification_time(fname);
+		free(fname);
+		if (!modtime && system->type == SYSTEM_GENESIS) {
+			fname = get_slot_name(system, i, "gst");
+			modtime = get_modification_time(fname);
+			free(fname);
+		}
+		if (i == QUICK_SAVE_SLOT) {
+			cur += snprintf(cur, MAX_DESC_SIZE, "Quick - ");
+		} else {
+			cur += snprintf(cur, MAX_DESC_SIZE, "Slot %d - ", i);
+		}
+		if (modtime) {
+			strftime(cur, MAX_DESC_SIZE - (cur - dst->desc), "%c", localtime_r(&modtime, &ltime));
+		} else {
+			strcpy(cur, "EMPTY");
+		}
+		dst[i].modification_time = modtime;
+	}
+	*num_out = QUICK_SAVE_SLOT + 1;
+	return dst;
+}
+
+void free_slot_info(save_slot_info *slots)
+{
+	if (!slots) {
+		return;
+	}
+	for (uint32_t i = 0; i <= QUICK_SAVE_SLOT; i++)
+	{
+		free(slots[i].desc);
+	}
+	free(slots);
+}