From 56bab06f7ba8a853eedfbf9c07d97a340efc2824 Mon Sep 17 00:00:00 2001
From: Kai Stevenson <kai@kaistevenson.com>
Date: Sun, 5 Mar 2023 00:19:36 -0800
Subject: started leaderboard library

---
 src/leaderboard.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/leaderboard.h | 18 ++++++++++++++++
 2 files changed, 82 insertions(+)
 create mode 100644 src/leaderboard.c
 create mode 100644 src/leaderboard.h

diff --git a/src/leaderboard.c b/src/leaderboard.c
new file mode 100644
index 0000000..755cff7
--- /dev/null
+++ b/src/leaderboard.c
@@ -0,0 +1,64 @@
+#include <stdlib.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/file.h>
+#include <string.h>
+#include "leaderboard.h"
+leaderScore_t init_leaderscore(char* name, unsigned long int score) {
+	leaderscore_t score;
+	score.name = name;
+	score.score = score;
+	return score;
+}
+leaderboard_t init_leaderboard(unsigned int capacity) {
+	leaderboard_t lb;
+	lb.capacity = capacity;
+	lb.count = 0;
+}
+leaderboard_t leaderboard_add_score(leaderboard_t leaderboard, leaderscore_t score) {
+	leaderboard.scores[leaderboard.count] = score;
+	leaderboard.count++;
+	return leaderboard;
+}
+leaderboard_t read_leaderboard(char* path, unsigned int capacity) {
+	FILE* file = fopen(path, "r");
+	if (file == NULL) {
+		return NULL;
+	}
+	leaderboard_t lb = init_leaderboard(capacity);
+	while (char c = fgetc(file) != EOF) {
+		/* name */
+		int ni = 0;
+		char* name = malloc(15 * sizeof(char));
+		while (c != ',') {
+			name[ni] = c;
+			ni++;
+		}
+		name[ni] = '\0';
+		name = realloc(name, ni);
+		/* score */
+		int si = 0;
+		char* scoreStr = malloc(20 * sizeof(char));
+		while (c != '\n') {
+			scoreStr[si] = c;
+			si++;
+		}
+		scoreStr[si] = '\0';
+		unsigned long int score = atoi(scoreStr);
+		leaderscore_t ls = init_leaderscore(name, score);
+		leaderboard_add_score(lb, ls);
+	}
+	fclose(file);
+	return lb;
+}
+void save_leaderboard(leaderboard_t leaderboard, char* path) {
+	FILE* file = fopen(path, "w");
+	int res = flock(fileno(file), LOCK_EX);
+	if (res != 0) {
+		return;
+	}
+	/* got lock */
+	/* TODO: actually write the leaderboard */
+	flock(fileno(file), LOCK_UN);
+}
+void draw_leaderboard(leaderboard_t leaderboard);
diff --git a/src/leaderboard.h b/src/leaderboard.h
new file mode 100644
index 0000000..0488608
--- /dev/null
+++ b/src/leaderboard.h
@@ -0,0 +1,18 @@
+#ifndef LEADERBOARD
+#define LEADERBOARD
+typedef struct LeaderScore {
+	char* name;
+	unsigned long int score;
+} leaderscore_t;
+leaderscore_t init_leaderscore(char* name, unsigned long int score);
+typedef struct Leaderboard {
+	leaderscore_t* scores;
+	unsigned int capacity;
+	unsigned long int count;
+} leaderboard_t;
+leaderboard_t init_leaderboard(unsigned int capacity);
+leaderboard_t leaderboard_add_score(leaderboard_t leaderboard, leaderscore_t score);
+leaderboard_t read_leaderboard(char* path);
+void save_leaderboard(leaderboard_t leaderboard, char* path);
+void draw_leaderboard(leaderboard_t leaderboard);
+#endif
-- 
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