#include <iostream>
#include <string>
using namespace std;
class Bill {
protected:
int invoiceId;
double totalAmount;
double taxRate;
string customerName;
string paymentStatus;
public:
Bill(int id, double amount, double rate, string name)
: invoiceId(id), totalAmount(amount), taxRate(rate), customerName(name), paymentStatus("Pending") {}
int getInvoiceId() const {
return invoiceId;
}
double getTotalAmount() const {
return totalAmount;
}
double getTaxRate() const {
return taxRate;
}
virtual void displayDetails() {
cout << "Invoice ID: " << invoiceId << endl;
cout << "Customer: " << customerName << endl;
cout << "Total Amount: " << totalAmount << endl;
cout << "Tax Rate: " << taxRate << "%" << endl;
cout << "Payment Status: " << paymentStatus << endl;
}
virtual void updatePaymentStatus(string status) {
paymentStatus = status;
}
virtual double calculatePayment() {
return totalAmount * (1 + (taxRate / 100));
}
};
class BillManagementSystem {
private:
static const int MAX_BILLS = 100;
Bill* bills[MAX_BILLS];
int numBills;
public:
BillManagementSystem() : numBills(0) {}
void addBill(Bill* bill) {
if (numBills < MAX_BILLS) {
bills[numBills++] = bill;
cout << "Bill added successfully." << endl;
} else {
cout << "Bill limit reached. Cannot add more bills." << endl;
}
}
void displayBills() {
for (int i = 0; i < numBills; i++) {
bills[i]->displayDetails();
cout << endl;
}
}
void updatePaymentStatus(int invoiceId, string newStatus) {
for (int i = 0; i < numBills; i++) {
if (bills[i]->getInvoiceId() == invoiceId) {
bills[i]->updatePaymentStatus(newStatus);
cout << "Payment status updated successfully." << endl;
return;
}
}
cout << "Bill not found." << endl;
}
void deleteBill(int invoiceId) {
for (int i = 0; i < numBills; i++) {
if (bills[i]->getInvoiceId() == invoiceId) {
delete bills[i];
bills[i] = bills[numBills - 1];
numBills--;
cout << "Bill deleted successfully." << endl;
return;
}
}
cout << "Bill not found." << endl;
}
void searchBillByInvoiceId(int invoiceId) {
for (int i = 0; i < numBills; i++) {
if (bills[i]->getInvoiceId() == invoiceId) {
bills[i]->displayDetails();
return;
}
}
cout << "Bill not found." << endl;
}
void searchBillByTotalAmount(double amount) {
cout << "Bills with Total Amount $" << amount << ":" << endl;
for (int i = 0; i < numBills; i++) {
if (bills[i]->getTotalAmount() == amount) {
bills[i]->displayDetails();
cout << endl;
}
}
}
void searchBillByTaxRate(double rate) {
cout << "Bills with Tax Rate " << rate << "%:" << endl;
for (int i = 0; i < numBills; i++) {
if (bills[i]->getTaxRate() == rate) {
bills[i]->displayDetails();
cout << endl;
}
}
}
void generateReports() {
double totalBillAmount = 0.0;
double totalTaxPaid = 0.0;
cout << "Bill Reports" << endl;
cout << "============" << endl;
for (int i = 0; i < numBills; i++) {
totalBillAmount += bills[i]->getTotalAmount();
totalTaxPaid += bills[i]->calculatePayment() - bills[i]->getTotalAmount();
}
cout << "Total Number of Bills: " << numBills << endl;
cout << "Total Bill Amount: " << totalBillAmount << endl;
cout << "Total Tax Paid: " << totalTaxPaid << endl;
}
};
int main() {
BillManagementSystem system;
while (true) {
cout << "Billing Management System" << endl;
cout << "1. Manage Bills" << endl;
cout << "2. Search Bills" << endl;
cout << "3. Reports of Bills" << endl;
cout << "4. Exit" << endl;
int choice;
cin >> choice;
switch (choice) {
case 1: {
cout << "1. Add Bills" << endl;
cout << "2. Update Bills" << endl;
cout << "3. Display Bills" << endl;
cout << "4. Delete Bills" << endl;
cout << "5. Exit" << endl;
int subChoice;
cin >> subChoice;
switch (subChoice) {
case 1: {
int id;
double amount, rate;
string name;
cout << "Enter Invoice ID: ";
cin >> id;
cout << "Enter Customer Name: ";
cin.ignore();
getline(cin, name);
cout << "Enter Total Amount: ";
cin >> amount;
cout << "Enter Tax Rate: ";
cin >> rate;
Bill* newBill = new Bill(id, amount, rate, name);
system.addBill(newBill);
break;
}
case 2: {
int invoiceId;
string newStatus;
cout << "Enter Invoice ID: ";
cin >> invoiceId;
cout << "Enter new payment status: ";
cin.ignore();
getline(cin, newStatus);
system.updatePaymentStatus(invoiceId, newStatus);
break;
}
case 3: {
system.displayBills();
break;
}
case 4: {
int invoiceId;
cout << "Enter Invoice ID to delete: ";
cin >> invoiceId;
system.deleteBill(invoiceId);
break;
}
case 5:
cout << "Returning to the main menu." << endl;
break;
default:
cout << "Invalid choice. Please select a valid option." << endl;
}
break;
}
case 2: {
cout << "1. Search by Invoice ID" << endl;
cout << "2. Search by Total Amount" << endl;
cout << "3. Search by Tax Rate" << endl;
int searchSubChoice;
cin >> searchSubChoice;
switch (searchSubChoice) {
case 1: {
int invoiceId;
cout << "Enter Invoice ID to search: ";
cin >> invoiceId;
system.searchBillByInvoiceId(invoiceId);
break;
}
case 2: {
double amount;
cout << "Enter Total Amount to search: ";
cin >> amount;
system.searchBillByTotalAmount(amount);
break;
}
case 3: {
double rate;
cout << "Enter Tax Rate to search: ";
cin >> rate;
system.searchBillByTaxRate(rate);
break;
}
default:
cout << "Invalid choice. Please select a valid option." << endl;
}
break;
}
case 3: {
system.generateReports();
break;
}
case 4:
cout << "Exiting..." << endl;
return 0;
default:
cout << "Invalid choice. Please select a valid option." << endl;
}
}
return 0;
}
0 Comments