20141230_KUAS_VisualC++_Exam11

/**************************************/
/** 20141230 Exam 11                 **/
/** Maker  : Yan                     **/
/** E-Mail : [email protected] **/
/** Date   : 2014/12/30 am.11:30     **/
/**************************************/

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

struct Items{
    int number_id;
    char item[10];
    int price;
    char firm[10];
};

struct Members{
    int number_id;
    char name[10];
    char address[10];
    char phone[15];
    int items_quantity[100];
};

int CheckFile()
{
    FILE *fptrCheck;
    //Check ItemsData
    if((fptrCheck = fopen("ItemsData.txt", "r")) == NULL)
        return 0;

    //Check Member
    else if((fptrCheck = fopen("MembersData.txt", "r")) == NULL)
        return 1;

    //Check Bill
    else if((fptrCheck = fopen("BillsData.txt", "r")) == NULL)
        return 2;

    else
        return 3;
}

int main(int argc, char const *argv[])
{
    switch(CheckFile())
    {
        case 0:
            printf("    ---- ERROR read file: ItemsData.txt ----\n");
            return 0;

        case 1:
            printf("    ---- ERROR read file: MembersData.txt ----\n");
            return 0;

        case 2:
            printf("    ---- ERROR read file: BillsData.txt ----\n");
            return 0;

        case 3:
        {
            //Read ItemsData.txt
            struct Items All_Item[100];
            FILE *fptrReadFile = fopen("ItemsData.txt", "r");
            int item_counter = 0;
            while(!feof(fptrReadFile))
            {
                fscanf(fptrReadFile, "%d %s %d %s\n", &All_Item[item_counter].number_id, All_Item[item_counter].item, &All_Item[item_counter].price, All_Item[item_counter].firm);
                item_counter++;
            }
            fclose(fptrReadFile);

            //Read MembersData.txt
            struct Members All_Member[100];
            fptrReadFile = fopen("MembersData.txt", "r");
            int member_counter = 0;
            while(!feof(fptrReadFile))
            {
                fscanf(fptrReadFile, "%d %s %s %s\n", &All_Member[member_counter].number_id, All_Member[member_counter].name, All_Member[member_counter].address, All_Member[member_counter]. phone);
                member_counter++;
            }
            fclose(fptrReadFile);

            //Read Bill and throw it in the struct array
            fptrReadFile = fopen("BillsData.txt", "r");
            while(!feof(fptrReadFile))
            {
                int member_id = 0, item_id = 0, quantity = 0;
                fscanf(fptrReadFile, "%d %d %d\n", &member_id, &item_id, &quantity);
                All_Member[member_id].items_quantity[item_id] += quantity;
            }
            fclose(fptrReadFile);

            while(1)
            {
                system("cls");
                printf("Which user pay list do you want to see: ");
                int _select = 0;
                scanf("%d", &_select);
                if(_select == -1)
                    return 0;

                else if(_select > member_counter)
                {
                    printf("    ---- DO NOT HAVE THIS USER ID ----\n\n");
                    system("pause");
                    continue;
                }

                else
                {
                    printf("Name\tAddress\tPhone\tItem\tFirm\tPrice\tQuantity\tLump_Sum\n");
                    for(int i = 0; i < 100; i++)
                        if(All_Member[_select].items_quantity[i] > 0)
                            printf("%s\t%s\t%s\t%s\t%s\t%d\t%d\t\t%d\n", All_Member[_select].name, All_Member[_select].address, All_Member[_select].phone, All_Item[i].item, All_Item[i].firm, All_Item[i].price, All_Member[_select].items_quantity[i], All_Item[i].price * All_Member[_select].items_quantity[i]);
                    printf("\n");
                    system("pause");
                }
            }
        }
    }
    return 0;
}