update project structure & create Makefile

src/csv.c

@@ -0,0 +1,75 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include "../include/main.h"
+
+typedef struct {
+  uint32_t pupilNum;
+  char crsNo[MAX_COURSE_NO_LEN];
+  char description[MAX_COURSE_DES_LEN];
+  bool alternate;
+} CSV_LINE;
+
+// Dumbass me set this to size_t earlier, forgot that size_t is unsigned and I can't return -1 on failure
+int count_lines(char data_dir[]) {
+  FILE *stream = fopen(data_dir, "r");
+  if (!stream) {
+    fputs("Failed to open CSV file\n", stderr);
+    return -1;
+  }
+  char buff[MAX_CHAR];
+  size_t counter = 1;
+  while (fgets(buff, sizeof(buff), stream) != NULL) {
+    if (strchr(buff, '\n') != NULL) counter++;
+  }
+  fclose(stream);
+  return counter;
+}
+
+CSV_LINE *csvReader(char data_dir[], size_t size) {
+
+  FILE *stream = fopen(data_dir, "r");
+  if (!stream) {
+    fputs("Failed to open CSV file\n", stderr);
+    return NULL;
+  }
+
+  CSV_LINE *lines = malloc(size * sizeof(CSV_LINE));
+
+  char buff[MAX_CHAR];
+  int i = 0;
+
+  // Read each line in CSV file
+  while (fgets(buff, sizeof(buff), stream)) {
+    CSV_LINE csv_line = {0, "\0", "\0", false};
+    lines[i] = csv_line;
+
+    // Tokenize the line to extract data
+    char *token = strtok(buff, ",");
+    if (token)
+      lines[i].pupilNum = atoi(token); // convert string to uint32_t
+    
+    token = strtok(NULL, ",");
+    if (token)
+      strncpy(lines[i].crsNo, token, MAX_COURSE_NO_LEN);
+
+    token = strtok(NULL, ",");
+    if (token)
+      strncpy(lines[i].description, token, MAX_COURSE_DES_LEN);
+
+    token = strtok(NULL, ",");
+    if (token) {
+      char alternate[5];
+      strncpy(alternate, token, 5);
+      alternate[strcspn(alternate, "\n")] = 0; // Remove newline
+      lines[i].alternate = !strcmp(alternate, "TRUE") ? true : false;
+    }
+
+    i++;
+  }
+
+  fclose(stream);
+  return lines;
+}