dimithri ass

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

/*
defining compile time constants to set global arrays with a constant size
for const keyword variables are run time constants which are set after compilation
*/
#define RECORDS 100
#define STR_LIM 100
/*
tableRow header printing constants
*/
#define STOCKS  0
#define SALES 1
#define PURCHASES 2

//global arrays for item code
int itemCodes[RECORDS];
char itemNames[RECORDS][STR_LIM];
float unitPrices[RECORDS];
float discLevels[RECORDS];
float discRates[RECORDS]; //entered as 15,10,7.5 and not in the form of 0.15,0.10,0.075
int currStocks[RECORDS];

//the most recent item code,purchase code and sales code
int recentItemCode = 0;
int recentPurchaseCode = 0;
int recentSalesCode = 0;

int purchaseCodes[RECORDS];
int purchaseItemCodes[RECORDS];
int purchaseAmounts[RECORDS];
float purchaseNettotals[RECORDS]; // use the net total array for the sub total as well

int salesCodes[RECORDS];
int salesItemCodes[RECORDS];
int salesAmounts[RECORDS];
float salesSubtotals[RECORDS];
float salesNettotals[RECORDS];

void genTestData();
void funcAddPurchase();
void addSalesFunc();
void tableHeaderRowPrint(int section);
void funcCurStockDet();
void funcViewSales();
void viewPurchasesFunc();
void funcDetailsEntry();
void clearWindow();

int main(){
    genTestData();
    bool exitNumberPressed = false;
    char choice = ' ';

    while(!exitNumberPressed){
        clearWindow();
        int selectnum = 0;
        printf("Welcome...!!! \n");
        printf("\tWhat do you want to do here?  \n");
        printf("\tAdd Stock Details          - 1\n");
        printf("\tAdd Purchases              - 2\n");
        printf("\tAdd Sales                  - 3\n");
        printf("\tView Purchases             - 4\n");
        printf("\tView Sales                 - 5\n");
        printf("\tView Current Stock details - 6\n");
        printf("\tClose Application          - 7\n");
        printf("\nPlease Enter the Number Here :");
        scanf("%d",&selectnum);
        clearWindow();
        switch (selectnum){
        case 1:
            funcDetailsEntry();
            break;
        case 2:
            funcAddPurchase();
            break;
        case 3:
            addSalesFunc();
            break;
        case 5:
            funcViewSales();
            break;
        case 4:
            viewPurchasesFunc();
            break;
        case 6:
            funcCurStockDet();
            break;
        case 7:
            printf("Exiting Software\n");
            exit(0);
            break;
        default:
            printf("\n Invalid choice \n");
            return 0;
            break;
        }
        printf("\nWould you like to continue operations(y/n): ");
        scanf(" %c",&choice);
        exitNumberPressed = choice == 'y' || choice == 'Y' ? false : true;
    }
}
void genTestData(){

    char gItemNames[3][STR_LIM] = {"Apples","Papol","Oranges"};
    float gUnitPrices[3] = {10,20,30};
    float gDiscLevels[3] = {10,20,30};
    float gDiscRates[3] = {10,20,30};
    int gCurrStocks[3] = {10,20,30};
    for(int i = 0;i<3;i++){
        itemCodes[i] = i+1;
        strcpy(itemNames[i],gItemNames[i]);
        unitPrices[i] = gUnitPrices[i];
        discLevels[i] = gDiscLevels[i];
        discRates[i] = gDiscRates[i];
        currStocks[i] = gCurrStocks[i];
        recentItemCode = i+1;
    }
    int gPurchItemCodes[3] = {1,2,3};
    int gPurchAmounts[3] = {5,10,15};
    for(int i = 0;i<3;i++){
        purchaseCodes[i]=i+1;
        purchaseAmounts[i] = gPurchAmounts[i];
        purchaseItemCodes[i] = gPurchItemCodes[i];
        purchaseNettotals[i] = gPurchAmounts[i] * unitPrices[gPurchItemCodes[i]-1];

        recentPurchaseCode = i+1;
    }

    int gSalesItemCodes[3] = {1,2,3};
    int gSalesAmounts[3] = {5,10,15};
    for(int i =0;i<3;i++){
        salesCodes[i] =i+1;
        salesItemCodes[i] = gSalesItemCodes[i];
        salesAmounts[i] = gSalesAmounts[i];
        salesNettotals[i] = gSalesAmounts[i] * unitPrices[gSalesItemCodes[i]-1];
        salesSubtotals[i] = ( salesNettotals[i] >= discLevels[gSalesItemCodes[i]-1] ) ?
                                salesNettotals[i] * (1 - discRates[gSalesItemCodes[i]-1]/100.0) :
                                salesNettotals[i];
        recentSalesCode = i+1;
    }
}
void funcAddPurchase(){

    int inputItemCode,inputAmount;
    printf("Enter the item code to purchase: ");
    scanf("%d",&inputItemCode);
    if(inputItemCode<=recentItemCode){
        //item exists
        printf("Enter the amount to purchase: ");
        scanf("%d",&inputAmount);
        purchaseCodes[recentPurchaseCode] = recentPurchaseCode+1;
        purchaseItemCodes[recentPurchaseCode] = inputItemCode;
        purchaseAmounts[recentPurchaseCode] = inputAmount;
        purchaseNettotals[recentPurchaseCode] = unitPrices[inputItemCode-1] * inputAmount;
        currStocks[inputItemCode-1] += inputAmount;
        recentPurchaseCode += 1;
    }

}
void addSalesFunc(){

   int inputItemCode,inputAmount;
    printf("Enter the item code to sell: ");
    scanf("%d",&inputItemCode);
    if(inputItemCode<=recentItemCode){
        //item exists
        printf("Enter the amount to sell: ");
        scanf("%d",&inputAmount);
        if(currStocks[inputItemCode-1] >= inputAmount){
            //amount is enough
            salesCodes[recentSalesCode] = recentSalesCode+1;
            salesItemCodes[recentSalesCode] = inputItemCode;
            salesAmounts[recentSalesCode] = inputAmount;
            salesNettotals[recentSalesCode] = unitPrices[inputItemCode-1] * inputAmount;
            salesSubtotals[recentSalesCode] = salesNettotals[recentSalesCode] <= discLevels[inputItemCode-1] ?
                                                salesNettotals[recentSalesCode] * (1 - discRates[inputItemCode-1]/100.0) :
                                                salesNettotals[recentSalesCode];
            currStocks[inputItemCode-1] -= inputAmount;
            recentSalesCode += 1;
        }
        else{
            printf("Not enough stocks\n");
        }
    }else{
        printf("Item code does not exist\n");
    }
}
void tableHeaderRowPrint(int section){

    switch (section){
    case STOCKS:
        for(int i =0;i<100;i++){
            printf("-");
        }
        printf("\n");
        printf("%12s   %12s   %12s   %12s   %12s    %12s\n",
               "item code","item name","unit price","discount level","discount rate","current stock");
        break;
    case SALES:
        for(int i =0;i<100;i++){
            printf("-");
        }
        printf("\n");
        printf("%12s   %12s   %12s    %12s   %12s   %12s   %12s\n",
               "sales code","item code","item name","unit price","amount","net total","sub total");
        break;
    case PURCHASES:
        for(int i =0;i<100;i++){
            printf("-");
        }
        printf("\n");
        printf("%12s   %12s   %12s    %12s   %12s   %12s   \n",
               "purchase code","item code","item name","unit price","amount","net total");
        break;
    default:
        break;
    }
}
void funcCurStockDet(){

    tableHeaderRowPrint(STOCKS);
    for(int i = 0;i<recentItemCode;i++){
        printf("%12d  %12s  %12.2f  %12.2f  %12.2f  %12d\n",
               itemCodes[i],itemNames[i],unitPrices[i],discLevels[i],discRates[i],currStocks[i]);
    }
}
void funcViewSales(){

    tableHeaderRowPrint(SALES);
    for(int a=0;a<recentItemCode;a++){
        for(int i=0;i<recentSalesCode;i++){
            if(itemCodes[a] == salesItemCodes[i]){
                printf("%12d    ",salesCodes[i]);
                printf("%12d    ",salesItemCodes[i]);
                printf("%12s    ",itemNames[salesItemCodes[i]-1]);
                printf("%12d    ",salesAmounts[i]);
                printf("%12.2f  ",unitPrices[salesItemCodes[i]-1]);
                printf("%12.2f  ",salesNettotals[i]);
                printf("%12.2f  ",salesSubtotals[i]);
                printf("\n");
            }
        }
    }
}
void viewPurchasesFunc(){

    tableHeaderRowPrint(PURCHASES);
    for(int a=0;a<recentItemCode;a++){
        for(int i=0;i<recentSalesCode;i++){
            if(itemCodes[a] == salesItemCodes[i]){
                printf("%12d   ",purchaseCodes[i]);
                printf("%12d   ",purchaseItemCodes[i]);
                printf("%12s   ",itemNames[purchaseItemCodes[i]-1]);
                printf("%12.2f   ",unitPrices[purchaseItemCodes[i]-1]);
                printf("%12d   ",purchaseAmounts[i]);
                printf("%12.2f   ",purchaseNettotals[i]);
                printf("\n");
            }
        }
    }
}
void funcDetailsEntry(){

    printf("Adding stock info for item code %d\n",recentItemCode+1);
    int curr_stock;
    float unit_price,disc_level,disc_rate;
    char item_name[STR_LIM];
    printf("Enter item name: ");
    scanf("%s",item_name);
    printf("Enter item unit price: ");
    scanf("%f",&unit_price);
    printf("Enter item discount level: ");
    scanf("%f",&disc_level);
    printf("Enter item discount rate: ");
    scanf("%f",&disc_rate);
    printf("Enter item current stock: ");
    scanf("%d",&curr_stock);
    strcpy(itemNames[recentItemCode-1],item_name);
    unitPrices[recentItemCode-1] = unit_price;
    discLevels[recentItemCode-1] = disc_level;
    discRates[recentItemCode-1] = disc_rate;
    currStocks[recentItemCode-1] = curr_stock;
    recentItemCode = recentItemCode+1;
}
void clearWindow(){
    system("cls||clear");
}