feat(Week07): Add solutions

1 files changed, 159 insertions, 0 deletions

diff --git a/Week07/Exercise01/LibraryBanking.cpp b/Week07/Exercise01/LibraryBanking.cpp
new file mode 100644
index 0000000..66e0959
--- /dev/null
+++ b/Week07/Exercise01/LibraryBanking.cpp
@@ -0,0 +1,159 @@
+#include "LibraryBanking.h"
+#include "Transaction.h"
+#include <fstream>
+#include <iostream>
+
+void LibraryBanking::free() {
+	delete[] clerks;
+	delete[] transactions;
+}
+
+void LibraryBanking::copyFrom(const LibraryBanking& other) {
+	clerksAlloc = other.clerksAlloc;
+	clerksCount = other.clerksCount;
+	clerks = new BankClerk[clerksAlloc];
+	for (unsigned i = 0; i < clerksCount; ++i)
+		clerks[i] = other.clerks[i];
+
+	transactionsAlloc = other.transactionsAlloc;
+	transactionsCount = other.transactionsCount;
+	transactions = new Transaction[transactionsAlloc];
+	for (unsigned i = 0; i < transactionsCount; ++i)
+		transactions[i] = other.transactions[i];
+}
+
+void LibraryBanking::resizeClerks() {
+	clerksAlloc = clerksAlloc == 0 ? 8 : clerksAlloc * 2;
+	BankClerk* newClerks = new BankClerk[clerksAlloc];
+
+	for (unsigned i = 0; i < clerksCount; ++i)
+		newClerks[i] = clerks[i];
+
+	delete[] clerks;
+	clerks = newClerks;
+}
+
+void LibraryBanking::resizeTransactions() {
+	transactionsAlloc = transactionsAlloc == 0 ? 8 : transactionsAlloc * 2;
+	Transaction* newTransactions = new Transaction[transactionsAlloc];
+
+	for (unsigned i = 0; i < transactionsCount; ++i)
+		newTransactions[i] = transactions[i];
+
+	delete[] transactions;
+	transactions = newTransactions;
+}
+
+LibraryBanking::LibraryBanking() : clerks(nullptr), clerksCount(0), clerksAlloc(0), transactions(nullptr), transactionsCount(0), transactionsAlloc(0)
+{ }
+
+LibraryBanking::~LibraryBanking() {
+	free();
+}
+
+LibraryBanking::LibraryBanking(const LibraryBanking& other) {
+	copyFrom(other);
+}
+
+LibraryBanking& LibraryBanking::operator=(const LibraryBanking& other) {
+	if (this != &other) {
+		free();
+		copyFrom(other);
+	}
+	return *this;
+}
+
+LibraryBanking::LibraryBanking(LibraryBanking&& other) {
+	clerks = other.clerks;
+	clerksCount = other.clerksCount;
+	clerksAlloc = other.clerksAlloc;
+
+	transactions = other.transactions;
+	transactionsCount = other.transactionsCount;
+	transactionsAlloc = other.transactionsAlloc;
+
+	other.clerks = nullptr;
+	other.clerksCount = other.clerksAlloc = 0;
+
+	other.transactions = nullptr;
+	other.transactionsCount = other.transactionsAlloc = 0;
+}
+
+LibraryBanking& LibraryBanking::operator=(LibraryBanking&& other) {
+	if (this != &other) {
+		free();
+
+		clerks = other.clerks;
+		clerksCount = other.clerksCount;
+		clerksAlloc = other.clerksAlloc;
+
+		transactions = other.transactions;
+		transactionsCount = other.transactionsCount;
+		transactionsAlloc = other.transactionsAlloc;
+
+		other.clerks = nullptr;
+		other.clerksCount = other.clerksAlloc = 0;
+
+		other.transactions = nullptr;
+		other.transactionsCount = other.transactionsAlloc = 0;
+	}
+	return *this;
+}
+
+void LibraryBanking::RegisterClerk(const BankClerk& clerk) {
+	if (clerksCount >= clerksAlloc)
+		resizeClerks();
+	clerks[clerksCount++] = clerk;
+}
+
+BankClerk* LibraryBanking::LoginClerk(unsigned clerkNumber, unsigned dynamicPassword, const String& staticPassword) {
+	for (unsigned i = 0; i < clerksCount; ++i) {
+		if (clerks[i].Login(clerkNumber, dynamicPassword, staticPassword))
+			// "clerks + i" е същото като "&clerks[i]"
+			return clerks + i;
+	}
+	return nullptr;
+}
+
+void LibraryBanking::ListPendingTransactions() {
+	for (unsigned i = 0; i < transactionsCount; ++i) {
+		if (transactions[i].GetStatus() == STATUS_PENDING) {
+			std::cout << '[' << i << "] ";
+			transactions[i].PrintTransactionInfo();
+		}
+	}
+}
+
+Transaction* LibraryBanking::GetTransaction(unsigned index) {
+	if (index >= transactionsCount)
+		return nullptr;
+	// "transactions + index" е същото като "&transactions[index]"
+	return transactions + index;
+}
+
+const Transaction* LibraryBanking::RegisterTransaction(const Transaction& transaction) {
+	if (transactionsCount >= transactionsAlloc)
+		resizeTransactions();
+	transactions[transactionsCount] = transaction;
+
+	if (transaction.GetSum() == 0.0)
+		transactions[transactionsCount].SetStatus(0, STATUS_ACCEPTED);
+
+	return transactions + transactionsCount++;
+}
+
+void LibraryBanking::ExportNonPendingTransactions(const String& fileName) {
+	std::ofstream exportFile(fileName.GetStr(), std::ios::trunc);
+
+	if (!exportFile.is_open()) {
+		std::cout << "Couldn't open file!" << std::endl;
+	}
+	else {
+		for (unsigned i = 0; i < transactionsCount; ++i) {
+			if (transactions[i].GetStatus() != STATUS_PENDING) {
+				exportFile << i << ",";
+				transactions[i].Export(exportFile);
+			}
+		}
+	}
+}