#pragma warning (disable: 4996)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "Functions2.h"
#include "Functions.c"

char content[100];
int answer = 0, length = 0, found = 0, users = 0, choice3 = 0, k = 1;
long size = 0;
char test[10];

int main() {
	/*User Struct which is used in order to create a new profile with a name, password, key and potential new
	files (Created after the login)*/
	typedef struct User {
		char name[16];
		char password[16];
		char key[8];
		char files[8][16];
	};
	struct User* User2 = NULL;
	struct User* currentUser = NULL;

	//Loading
	file = fopen("Profile", "rb");
	if (file != NULL) {
		fseek(file, 0, SEEK_END);
		size = ftell(file);
		length = size / sizeof(struct User);
		User2 = (struct User*)malloc(size);
		rewind(file);
		fread(User2, sizeof(struct User), length, file);
		users = length;
		fclose(file);

	}
	else {
		printf("Error loading data!\n");
	}

	printf("Hello! Welcome to Final Project\n\n");
	while (1) {
		if (choice == 0) {
			printf("Press (1) to login\n");
			printf("Press (2) to create a new account\n");
			printf("Your choice: ");
			scanf("%d", &answer);
			getchar();

			printf("\n");
			if (answer == 1) {
				char userAttempt[16];
				char userPassword[16];
				printf("Insert Username: "); scanf("%s", userAttempt);
				getchar();
				printf("\nInsert Password: "); scanf("%s", userPassword);
				getchar();
				for (int z = 0; z < 2; z++) {
					if (strcmp(userAttempt, User2[z].name) == 0 && strcmp(userPassword, User2[z].password) == 0) {
						printf("\nLogin success!");
						currentUser = &User2[z];
						choice = 1;
					}
				}
			}
			else if (answer == 2) {
				file = fopen("Profile", "wb");
				//If not found

					//Read/Save.
				char name[16];
				char password[16];
				printf("Insert Username: "); scanf("%s", name);
				getchar();
				printf("Insert Password: "); scanf("%s", password);
				getchar();
				printf("\n");

				//Create a Profile
				if (file == NULL) {
					User2 = (struct User*)malloc(sizeof(struct User));
				}
				else {
					User2 = (struct User*)realloc(User2, sizeof(struct User)*(users + 1));
				}
				strcpy(User2[users].name, name);
				strcpy(User2[users].password, password);
				users++;

				//Save.
				fwrite(User2, sizeof(struct User), users, file);

				//Close
				choice = 1;
				fclose(file);
			}
			else if (answer != 1, 2) {
				printf("\nPlease use the the number 1 and 2 to proceed.\n");
				getchar();
			}
		}
		else if (currentUser != NULL || choice == 1) {
			printf("\n\n What do you wish to do?");
			printf("\n 1) Insert Text");
			printf("\n 2) Save data on an existing file");
			printf("\n 3) Read a file");
			printf("\n 4) Change password");
			printf("\n 5) Log out");
			printf("\n 6) Close Program");
			printf("\n\nYour Choice: ");
			int choice2;
			scanf("%d", &choice2);
			getchar();
			switch (choice2) {

			case 1:
				printFile();
				break;
			case 2:
				printf("What file do you wish to save data on?\n");
				scanf("%s", &openFile);
				getchar();
				file = fopen(openFile, "r+");

				if (file == NULL) {
					printf("Could not open file.");
					getchar();
					return 0;
				} else {
					fscanf(file, "%s", content);
				}
				fclose(file);
				break;
			case 3:
				printf("\nWhat file do you wish to read?\n");
				printf("File: ");
				scanf("%s", &openFile);
				getchar();

				file = fopen(openFile, "r");

				if (file != NULL) {
					fseek(file, 0, SEEK_END);
					int lengthSeek = ftell(file);
					rewind(file);
					char *c = (char*)malloc(lengthSeek);
					fread(c, lengthSeek, 1, file);
					fclose(file);
					for (int u = 0; u < lengthSeek; u++) {
						printf("%c", c[u]);
					}
					free(c);
				}
				else if (file == NULL) {
					printf("File doesn't exist.. Try creating it first!");
					choice = 1;
				}
				break;
			case 4:
				printf("Insert new password here: ");
				scanf("%s", currentUser->password);
				getchar();
				break;
			case 5:
				choice = 0;
				break;
			case 6:
				return 0;
				break;
			default:
				printf("Please use the numbers 1 to 7!");
				choice = 1;
				break;
				getchar();
			}
		}
	}
	getchar();
	return (0);
}