//Jillian Woodard
//COP 3223
//This program is designed to incoorperate 3 files into a database
//that the user can use a menu to retrieve the desired data from
//the 3 files.

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

int MAX_ENTRIES=37;

//Declaring the data structures
       struct record {
       char name[37][20];
       int grade;
       int age;
           };




//Intializing Functions
void option1 (struct record table[]);
void option2 (struct record table[]);
void option3 (struct record table[]);
void option4 (struct record table[]);
//void Simple_Sort(struct record table[], int length);
//void Move_Max(struct record table[], int max_index);
//void swap(struct record table[]);
//void Print_Array(int values[], int length);

int main()
{


int choice;
int i=0;


   //Reading Files


  struct record table[MAX_ENTRIES];

     FILE  *fp1,*fp2, *fp3;
     fp1= fopen ("name.txt", "r");
     fp2= fopen( "grade.txt", "r");
     fp3= fopen("age.txt.", "r");


//Read in Files

       for (i =0; i<MAX_ENTRIES; i++)
       {
         fscanf( fp1, "%s", &table[i].name);
         fscanf( fp2, "%d", &table[i].grade );
         fscanf( fp3, "%d", &table[i].age );

   // printf ("%s\n", table[i].name);
        }
        system("pause");


   choice=0;
   while (choice !=8)
{
//Menu Options
   printf("What would you like to do?\n");
   printf("1.	List all people above a certain grade\n");
   printf("2.	List all people above a certain age\n");
   printf("3.	List all people above a certain age and above a certain grade\n");
   printf("4.	List all data\n");
   printf("5.   Sort by age.\n");
   printf("6.   Sort by Grade\n");
   printf("7.   Sort by Name.\n");
   printf("8.	Exit\n");
   scanf("%d", &choice);

   //Reading in Option and Processing Through Functions
   if (choice==1)
    {
       option1 (table);
    }


   else if (choice==2)
    {
         option2 (table);
    }

   else if (choice==3)
    {
             option3 (table);
    }

   else if (choice==4)
   {
            option4 (table);
   }

  /* else if (choice==5)
   {
        Simple_Sort (table, MAX_ENTRIES);
   }*/
    return 0;



   system("pause");
}}


    //Functions

    // Option 1 Function
       void option1 (struct record table[])
            {
                  int i=0, grademin;
                  printf("Please enter a minimum grade.\n");
                  scanf("%d", &grademin);

                  for (i=0;i<MAX_ENTRIES;i++)
                     {
                        if (table[i].grade>grademin)
                         {
                           printf("%s:", table[i].name);
                           printf("%5d", table[i].grade);
                           printf("%5d\n", table[i].age);

                           }
                     }

                  system("pause");

            }
       //Option Two Function

      void option2 (struct record table[])
            {
                  int i=0, agemin;
                  printf("Please enter a minimum age.\n");
                  scanf("%d", &agemin);

                  for (i=0;i<MAX_ENTRIES;i++)
                     {
                        if (table[i].age>agemin)
                         {
                           printf("%s:", table[i].name);
                           printf("%5d", table[i].grade);
                           printf("%5d\n", table[i].age);

                           }
                     }


            }

         //Option 3 Function
            void option3 (struct record table[])
            {
                  int i=0, agemin, grademin;
                  printf("Please enter a minimum age.\n");
                  scanf("%d", &agemin);
                  printf("Please enter minimum grade.\n");
                  scanf("%d", &grademin);

                  for (i=0;i<MAX_ENTRIES;i++)
                     {
                        if ((table[i].age>agemin) && (table[i].grade>grademin))
                         {
                            printf("%15s\t:", table[i].name);
                           printf("%5d\t", table[i].grade);
                           printf("%5d\n", table[i].age);

                         }
                     }

                  system("pause");
            }

         //Option Four Function
              void option4 (struct record table[])
              {
                  int i=0;

                   for (i=0; i<MAX_ENTRIES ; i++)
                      {
                         printf("%s:", table[i].name);
                           printf("%5d", table[i].grade);
                           printf("%5d\n", table[i].age);
                        }
              system("pause");
              }