Added some code to show the remaining cards correctly. It kind of

works, but for some reason its decrementing the count by 2. And
it looks like the quiz is updating both the front and back quiz
item for a card with the new time in asl_post. But I don't see how
that is happening in the code logic yet.

asl.c

@@ -18,10 +18,12 @@
 #include "utils.h"
 
 // Indicates if a user's confidence level has been tested or not
-#define NOT_TESTED -1
+#define NOT_TESTED 1
 
 static size_t card_count = 0;
 static struct card cards[100];
+static size_t s_cards_remaining = 0;
+static time_t s_quiz_start = 0;
 static size_t quiz_len = 0;
 static struct quiz_item quiz[LEN(cards) * 2];
 static size_t current_quiz_item = 0;
@@ -101,6 +103,8 @@ static int replace_in_buf(char *buf, size_t *buf_len, const size_t buf_cap);
  */
 int asl_init(void)
 {
+	s_quiz_start = time(NULL);
+
 	if (find_image_files() != 0) {
 		fprintf(stderr, "Failed to find image files.\n");
 		return -1;
@@ -163,17 +167,35 @@ int asl_post(struct request *r, int client)
 		// Boost the confidence by 1 and review this card that many
 		// days in the future.
 		card->confidence += 1;
-		card->next_review = time(NULL) + (SECONDS_PER_DAY *
+		card->next_review = s_quiz_start + (SECONDS_PER_DAY *
 			card->confidence);
 	} else if (strcmp(great_btn, button.value) == 0) {
 		// Double the confidence and review the card that many days in
 		// the future.
 		card->confidence *= 2;
-		card->next_review = time(NULL) + (SECONDS_PER_DAY *
+		card->next_review = s_quiz_start + (SECONDS_PER_DAY *
 			card->confidence);
 	} else {
 		printf("Unrecognized button value: \"%s\"\n", button.value);
 	}
+	printf("card confidence:%i review time:%lu\n", card->confidence,
+		card->next_review);
+
+	// Update cards remaining
+	s_cards_remaining = 0;
+	printf("quiz start time:%lu\n", s_quiz_start);
+	for (size_t i = 0; i < quiz_len; ++i) {
+		struct quiz_item *c = quiz + i;
+		printf("card %lu review time: %lu review:", i, c->next_review);
+		if (c->next_review <= s_quiz_start) {
+			printf("y\n");
+			s_cards_remaining++;
+		} else {
+			printf("n\n");
+		}
+	}
+	printf("cards remaining: %lu\n", s_cards_remaining);
+
 	current_quiz_item++;
 	if (current_quiz_item > quiz_len) {
 		// Show done page and show score!
@@ -207,12 +229,12 @@ static int found_image(char *image)
 	quiz[quiz_len].card_id = card_count;
 	quiz[quiz_len].front = 0;
 	quiz[quiz_len].confidence = NOT_TESTED;
-	quiz[quiz_len].next_review = time(NULL);
+	quiz[quiz_len].next_review = s_quiz_start;
 	quiz_len++;
 	quiz[quiz_len].card_id = card_count;
 	quiz[quiz_len].front = 1;
 	quiz[quiz_len].confidence = NOT_TESTED;
-	quiz[quiz_len].next_review = time(NULL);
+	quiz[quiz_len].next_review = s_quiz_start;
 	quiz_len++;
 	card_count++;
 
@@ -361,7 +383,7 @@ static int replace_in_buf(char *buf, size_t *buf_len, const size_t buf_cap)
 		} else if (memcmp(var_start, card_count_var,
 				STRMAX(card_count_var)) == 0) {
 			result = print_var_to(var_start, buf_len, buf_cap,
-				card_count_var, "%lu", quiz_len);
+				card_count_var, "%lu", s_cards_remaining);
 		}
 	}
 	return result;