fix lots of stuff, implement history

1 files changed, 59 insertions, 10 deletions

diff --git a/src/save.c b/src/save.c
index 989ab60..9028bb4 100644
--- a/src/save.c
+++ b/src/save.c
@@ -1,6 +1,37 @@
 #include "globals.h"
 
-/* NOTE: integers are represented internally by unsigned long long ints, but in the save they are always 64 bits */
+/* NOTE: integers are represented internally by long long ints, but in the save they are always 64 bits */
+
+static bool write_be64(FILE *f, uint64_t n)
+{
+    n = to_be64(n);
+    if(fwrite(&n, sizeof(n), 1, f) != 1)
+        return false;
+    return true;
+}
+
+static bool write_be32(FILE *f, uint32_t n)
+{
+    n = to_be32(n);
+    if(fwrite(&n, sizeof(n), 1, f) != 1)
+        return false;
+    return true;
+}
+
+static bool write_be16(FILE *f, uint16_t n)
+{
+    n = to_be16(n);
+    if(fwrite(&n, sizeof(n), 1, f) != 1)
+        return false;
+    return true;
+}
+
+static bool write_int8(FILE *f, uint8_t n)
+{
+    if(fwrite(&n, sizeof(n), 1, f) != 1)
+        return false;
+    return true;
+}
 
 void save_handler(struct player_t *player)
 {
@@ -10,25 +41,43 @@ void save_handler(struct player_t *player)
     scanf("%127s", buf);
 
     printf("Writing data...\n");
-    FILE *f = fopen(buf, "w");
+    FILE *f = fopen(buf, "wb");
 
-    const char *magic = "PORTv1";
+    const char *magic = "PORTv2";
     fwrite(magic, strlen(magic), 1, f);
 
-    uint64_t be_cash = to_be64(player->cash.cents);
-
-    fwrite(&be_cash, sizeof(be_cash), 1, f);
+    write_be64(f, player->cash.cents);
 
     for(uint i = 0; i < player->portfolio_len; ++i)
     {
         struct stock_t *stock = player->portfolio + i;
 
-        uint64_t be_symlen = to_be64(strlen(stock->symbol));
-        fwrite(&be_symlen, sizeof(be_symlen), 1, f);
+        write_be64(f, strlen(stock->symbol));
+
         fwrite(stock->symbol, strlen(stock->symbol) + 1, 1, f);
 
-        uint64_t be_count = to_be64(stock->count);
-        fwrite(&be_count, sizeof(be_count), 1, f);
+        write_be64(f, stock->count);
+
+        write_be32(f, stock->history_len);
+
+        /* write history */
+        struct history_item *hist = stock->history;
+        while(hist)
+        {
+            printf("WRITING HISTORY ITEM %d\n", hist->action);
+            write_be32(f, hist->action);
+            write_be64(f, hist->count);
+            write_be64(f, hist->price.cents);
+
+            write_be16(f, hist->action_time.year);
+            write_int8(f, hist->action_time.month);
+            write_int8(f, hist->action_time.day);
+            write_int8(f, hist->action_time.hour);
+            write_int8(f, hist->action_time.minute);
+            write_int8(f, hist->action_time.second);
+
+            hist = hist->next;
+        }
     }
 
     fclose(f);