2 files changed, 92 insertions, 0 deletions
diff --git a/src/history.c b/src/history.c
new file mode 100644
index 0000000..324633b
--- /dev/null
+++ b/src/history.c
@@ -0,0 +1,71 @@
+#include "globals.h"
+
+void add_hist(struct stock_t *stock, enum history_action action, ullong count)
+{
+    /* add a history item for this transaction */
+    struct history_item *newhist = malloc(sizeof(struct history_item));
+    newhist->action = action;
+    newhist->count = count;
+    newhist->price.cents = stock->current_price.cents;
+    newhist->next = NULL;
+
+    time_t timer = time(0);
+    struct tm *tm = localtime(&timer);
+
+    newhist->action_time.year = tm->tm_year - 100;
+    newhist->action_time.month = tm->tm_mon;
+    newhist->action_time.day = tm->tm_mday;
+    newhist->action_time.hour = tm->tm_hour;
+    newhist->action_time.minute = tm->tm_min;
+    newhist->action_time.second = tm->tm_sec;
+
+    if(!stock->history)
+    {
+        stock->history = newhist;
+    }
+    else
+    {
+        struct history_item *last = stock->history;
+        while(last)
+        {
+            if(last->next)
+                last = last->next;
+            else
+                break;
+        }
+        last->next = newhist;
+    }
+
+    ++stock->history_len;
+}
+
+void print_history(struct stock_t *stock)
+{
+    assert(stock);
+
+    struct history_item *hist = stock->history;
+
+    while(hist)
+    {
+        ullong total = hist->count * hist->price.cents;
+
+        printf("[%d-%d-%d %d:%02d:%02d] ", hist->action_time.year + 2000, hist->action_time.month + 1, hist->action_time.day + 1,
+               hist->action_time.hour, hist->action_time.minute, hist->action_time.second);
+
+        switch(hist->action)
+        {
+        case BUY:
+            printf("[BUY]  %llu shares for $%llu.%02llu each (+$%llu.%02llu).\n", hist->count, hist->price.cents / 100, hist->price.cents % 100,
+                   total / 100, total % 100);
+            break;
+        case SELL:
+            printf("[SELL] %llu shares for $%llu.%02llu each (-$%llu.%02llu).\n", hist->count, hist->price.cents / 100, hist->price.cents % 100,
+                   total / 100, total % 100);
+            break;
+        default:
+            printf("unknown history enum (%d).\n", hist->action);
+            break;
+        }
+        hist = hist->next;
+    }
+}
diff --git a/src/info.c b/src/info.c
new file mode 100644
index 0000000..ea79dd7
--- /dev/null
+++ b/src/info.c
@@ -0,0 +1,21 @@
+#include "globals.h"
+
+void info_handler(struct player_t *player)
+{
+    char *sym;
+    printf("Enter the ticker symbol of the stock to get information for: ");
+    sym = get_ticker();
+
+    struct stock_t *stock = find_stock(player, sym);
+
+    free(sym);
+
+    if(!stock)
+    {
+        printf("Couldn't find '%s' in portfolio.\n", sym);
+        return;
+    }
+
+    printf("Transaction history:\n");
+    print_history(stock);
+}