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/*********************************
* Class: MAGSHIMIM C2            *
* Week:                          *
* Name:                          *
* Credits:                       *
**********************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define ADD_PRO_REASON 1
#define ADD_CON_REASON 2
#define PROS_LIST_NAME "PRO"
#define CONS_LIST_NAME "CON"
#define PRINT_REASONS 3
#define OPTIONS_MIN 1
#define OPTIONS_MAX 4
#define STR_LEN 75
#define EXIT 4

typedef struct listOfReasons
{
    char* listName;
    char** reasons;
    int numberOfReasons;
} listOfReasons;

void printReasons(listOfReasons reasons1, listOfReasons reasons2);
void printSingleList(listOfReasons list);
void myFgets(char str[], int n);
void showOptions();


int main(void)
{
    char* dillema = (char*)malloc(STR_LEN * sizeof(char)); //sizeof(char) is not needed but you understand it better
    listOfReasons pros = { PROS_LIST_NAME, 0, 0 };
    listOfReasons cons = { CONS_LIST_NAME, 0, 0 };
    int option = 0;

    printf("What's your dillema?\n");
    myFgets(dillema, STR_LEN);
    printf("\n");
    while (EXIT != option)
    {
        printf("Choose option:\n");
        showOptions();
        scanf("%d", &option);
        getchar();
        while (!(OPTIONS_MIN <= option) || !(OPTIONS_MAX >= option))
        {
            printf("Choose again:\n");
            scanf("%d", &option);
            getchar();
        }
        switch (option) //options from 1 to 4
        {
            case ADD_PRO_REASON:
                printf("Enter a reason to add to list %s:\n", pros.listName);
                printf("Reason: ");
                pros.reasons[pros.numberOfReasons] = (char*)malloc(STR_LEN * sizeof(char));
                myFgets(pros.reasons[pros.numberOfReasons], STR_LEN);
                pros.reasons[pros.numberOfReasons] = realloc(pros.reasons[pros.numberOfReasons], strlen(pros.reasons[pros.numberOfReasons]));
                pros.reasons = realloc(pros.reasons, pros.numberOfReasons * sizeof(char*));
                pros.numberOfReasons++;
                break;
            case ADD_CON_REASON:
                printf("Enter a reason to add to list %s:\n", cons.listName);
                printf("Reason: ");
                cons.reasons[cons.numberOfReasons] = (char*)malloc(STR_LEN * sizeof(char));
                myFgets(cons.reasons[cons.numberOfReasons], STR_LEN);
                cons.reasons[cons.numberOfReasons] = realloc(cons.reasons[cons.numberOfReasons], strlen(cons.reasons[cons.numberOfReasons]));
                cons.reasons = realloc(cons.reasons, cons.numberOfReasons * sizeof(char*));
                cons.numberOfReasons++;
                break;
            case PRINT_REASONS:
                printReasons(pros, cons);
                break;
            default: //will only be 4, no other options are allowed
                break;
        }
    }

    free(pros.reasons);
    free(cons.reasons);
    getchar();
    return 0;
}


/*
Function will perform the fgets command and also remove the newline
that might be at the end of the string - a known issue with fgets.
input: the buffer to read into, the number of chars to read
*/
void myFgets(char str[], int n)
{
    fgets(str, n, stdin);
    str[strcspn(str, "\n")] = 0;
}


/*
Function will print the options to the user
no i/o
*/
void showOptions()
{
    printf("1 - Add PRO reason\n");
    printf("2 - Add CON reason\n");
    printf("3 - Print reasons\n");
    printf("4 - Exit\n");
}


/*
This function will print all the reasons in both lists
input: struct pros, struct cons
output: none
*/
void printReasons(listOfReasons reasons1, listOfReasons reasons2) //paramenters are general
{
    printSingleList(reasons1);
    printSingleList(reasons2);
}


/*
Will print a single reason list using the struct
*/
void printSingleList(listOfReasons list)
{
    int i = 0;
    printf("List %s\n", list.listName);
    for (i = 0; i < (int)(strlen("list") + strlen(list.listName) + 1); i++)
    {//             this is to stop the warnings
        printf("-");
    }
    printf("\n");
    for (i = 0; i < list.numberOfReasons; i++)
    {
        puts(list.reasons[i]);
    }
}