added bar task

11 files changed, 604 insertions, 0 deletions

diff --git a/Sem. 11/Examples/Bar/AlcoholDrink/AlcoholDrink.cpp b/Sem. 11/Examples/Bar/AlcoholDrink/AlcoholDrink.cpp
new file mode 100644
index 0000000..ddd890e
--- /dev/null
+++ b/Sem. 11/Examples/Bar/AlcoholDrink/AlcoholDrink.cpp
@@ -0,0 +1,19 @@
+#pragma once
+#include "AlcoholDrink.h"
+
+AlcoholDrink::AlcoholDrink():alcP(5) {}
+
+AlcoholDrink::AlcoholDrink(const MyString& name, int ml, int alcP) :Drink(name, ml)
+{
+	setAlcP(alcP);
+}
+void AlcoholDrink::setAlcP(int alcP)
+{
+	if (alcP < 5 || alcP > 98)
+		alcP = 50;
+	this->alcP = alcP;
+}
+int AlcoholDrink::getAlcP() const
+{
+	return alcP;
+}
\ No newline at end of file
diff --git a/Sem. 11/Examples/Bar/AlcoholDrink/AlcoholDrink.h b/Sem. 11/Examples/Bar/AlcoholDrink/AlcoholDrink.h
new file mode 100644
index 0000000..3029580
--- /dev/null
+++ b/Sem. 11/Examples/Bar/AlcoholDrink/AlcoholDrink.h
@@ -0,0 +1,15 @@
+#pragma once
+#include "../Drink/Drink.h"
+#include "../Queue/Queue.hpp"
+#include "../Pair/Pair.hpp"
+
+class AlcoholDrink : public Drink
+{
+	int alcP;
+public:
+	AlcoholDrink();
+	AlcoholDrink(const MyString& name, int ml, int alcP);
+	
+	void setAlcP(int alcP);
+	int getAlcP() const;
+};
\ No newline at end of file
diff --git a/Sem. 11/Examples/Bar/Bar/Bar.cpp b/Sem. 11/Examples/Bar/Bar/Bar.cpp
new file mode 100644
index 0000000..2d20195
--- /dev/null
+++ b/Sem. 11/Examples/Bar/Bar/Bar.cpp
@@ -0,0 +1,53 @@
+#include "Bar.h"
+
+void Bar::addAlcoholDrink(const AlcoholDrink& dr, size_t count)
+{
+	if (count > 0)
+		alcoholDrinks.push(Pair<AlcoholDrink, size_t>(dr, count));
+}
+void Bar::addDrink(const Drink& dr, size_t count)
+{
+	if (count > 0)
+		drinks.push(Pair<Drink, size_t >(dr, count));
+}
+
+Drink Bar::getDrink()
+{
+
+	if (drinks.isEmpty())
+		throw std::logic_error("Empty drinks collection");
+
+	Drink toReturn = drinks.peek().getFirst();
+
+	stats.mlSold += toReturn.getMl();
+	stats.soldDrinks++;
+
+	drinks.peek().setSecond(drinks.peek().getSecond() - 1);
+	if (drinks.peek().getSecond() == 0)
+		drinks.pop();
+
+	return toReturn;
+}
+
+AlcoholDrink Bar::getAlcDrink()
+{
+	if (alcoholDrinks.isEmpty())
+		throw std::logic_error("Empty alc. drinks collection");
+
+	AlcoholDrink toReturn = alcoholDrinks.peek().getFirst();
+
+	stats.mlSold += toReturn.getMl();
+	stats.soldAlcoholDrinks++;
+
+	alcoholDrinks.peek().setSecond(alcoholDrinks.peek().getSecond() - 1);
+	if (alcoholDrinks.peek().getSecond() == 0)
+		alcoholDrinks.pop();
+
+	return toReturn;
+
+}
+
+const Bar::Statistics& Bar::getStats() const
+{
+	return stats;
+}
\ No newline at end of file
diff --git a/Sem. 11/Examples/Bar/Bar/Bar.h b/Sem. 11/Examples/Bar/Bar/Bar.h
new file mode 100644
index 0000000..4bf5513
--- /dev/null
+++ b/Sem. 11/Examples/Bar/Bar/Bar.h
@@ -0,0 +1,31 @@
+#pragma once
+#include "../Queue/Queue.hpp"
+#include "../Pair/Pair.hpp"
+#include "../AlcoholDrink/AlcoholDrink.h"
+
+class Bar
+{
+	MyQueue<Pair<AlcoholDrink, size_t>> alcoholDrinks;
+	MyQueue<Pair<Drink, size_t>> drinks;
+
+public:
+	struct Statistics
+	{
+		size_t soldDrinks;
+		size_t soldAlcoholDrinks;
+		size_t mlSold;
+	} stats;
+
+
+	Bar() = default;
+
+	void addAlcoholDrink(const AlcoholDrink& dr, size_t count = 1);
+	void addDrink(const Drink& dr, size_t count = 1);
+
+
+	Drink getDrink();
+	AlcoholDrink getAlcDrink();
+
+	const Statistics& getStats() const;
+
+};
diff --git a/Sem. 11/Examples/Bar/Drink/Drink.cpp b/Sem. 11/Examples/Bar/Drink/Drink.cpp
new file mode 100644
index 0000000..4bb921f
--- /dev/null
+++ b/Sem. 11/Examples/Bar/Drink/Drink.cpp
@@ -0,0 +1,62 @@
+#include "Drink.h"
+
+Drink::Drink() : Drink("Unknown", 0)
+{}
+
+const MyString& Drink::getName() const
+{
+	return name;
+}
+int Drink::getMl() const
+{
+	return ml;
+}
+
+bool isLower(char ch)
+{
+	return ch >= 'a' && ch <= 'z';
+}
+
+bool areAllLowerCase(const char* str)
+{
+	while (*str)
+	{
+		if (!isLower(*str))
+			return false;
+		str++;
+	}
+	return true;
+}
+
+bool isUpper(char ch)
+{
+	return ch >= 'A' && ch <= 'Z';
+}
+
+bool isNameValid(const char* name)
+{
+	return isUpper(*name) && areAllLowerCase(name + 1);
+}
+
+void Drink::setName(const MyString& name)
+{
+	if (isNameValid(name.c_str()))
+		this->name = name;
+}
+void Drink::setMl(int ml)
+{
+	const int MAX_ML = 1000;
+	const int MIN_ML = 100;
+
+	ml = MIN_ML;
+	if (MIN_ML <= ml && ml <= MAX_ML)
+		this->ml = ml;
+
+}
+
+Drink::Drink(const MyString& name, int ml)
+{
+	setName(name);
+	setMl(ml);
+}
+
diff --git a/Sem. 11/Examples/Bar/Drink/Drink.h b/Sem. 11/Examples/Bar/Drink/Drink.h
new file mode 100644
index 0000000..d48a725
--- /dev/null
+++ b/Sem. 11/Examples/Bar/Drink/Drink.h
@@ -0,0 +1,21 @@
+#pragma once
+#include "../MyString/MyString.h"
+
+class Drink
+{
+public:
+
+	Drink();
+	Drink(const MyString& name, int ml);
+
+	const MyString& getName() const;
+	int getMl() const;
+
+	void setName(const MyString& name);
+	void setMl(int ml);
+
+private:
+	MyString name;
+	int ml;
+
+};
\ No newline at end of file
diff --git a/Sem. 11/Examples/Bar/MyString/MyString.cpp b/Sem. 11/Examples/Bar/MyString/MyString.cpp
new file mode 100644
index 0000000..3e60278
--- /dev/null
+++ b/Sem. 11/Examples/Bar/MyString/MyString.cpp
@@ -0,0 +1,142 @@
+#include "MyString.h"
+#include <cstring>
+#include <iostream>
+
+void MyString::copyFrom(const MyString& other)
+{
+	str = new char[strlen(other.str) + 1];
+	strcpy(str, other.str);
+	size = other.size;
+}
+void MyString::free()
+{
+	delete[] str;
+}
+
+MyString::MyString()
+{
+	str = new char[1];
+	str[0] = '\0';
+	size = 0;
+}
+
+MyString::MyString(const char* data)
+{
+	if(data == nullptr)
+	{
+		str = new char[1];
+		str[0] = '\0';
+		size = 0;
+	}
+	else
+	{
+		size = strlen(data);
+		str = new char[size + 1];
+		strcpy(str, data);
+	}
+}
+
+MyString::MyString(const MyString& other)
+{
+	copyFrom(other);
+}
+MyString& MyString::operator=(const MyString& other)
+{
+	if (this != &other)
+	{
+		free();
+		copyFrom(other);
+	}
+	return *this;
+}
+MyString::~MyString()
+{
+	free();
+}
+
+
+size_t MyString::getSize() const
+{
+	return size;
+}
+void MyString::concat(const MyString& other)
+{
+	char* temp = new char[getSize() + other.getSize() + 1];
+	strcpy(temp, str);
+	strcat(temp, other.str);
+
+	delete[] str;
+	str = temp;
+	size = size + other.getSize();
+}
+
+const char* MyString::c_str() const
+{
+	return str;
+}
+
+MyString& MyString::operator+=(const MyString& other)
+{
+	concat(other);
+	return *this;
+}
+
+MyString operator+(const MyString& lhs, const MyString& rhs)
+{
+	MyString copyOfLeft(lhs);
+	copyOfLeft += rhs;
+	return copyOfLeft;
+}
+
+std::ostream& operator<<(std::ostream& stream, const MyString& str)
+{
+	stream << str.str;
+	return stream;
+}
+
+std::istream& operator>>(std::istream& stream, MyString& str)
+{
+	delete[] str.str;
+	char buff[1024];
+	stream >> buff;
+
+	str.size = strlen(buff);
+	str.str = new char[str.size + 1];
+	strcpy(str.str, buff);
+
+	return stream;
+}
+
+bool operator==(const MyString& lhs, const MyString& rhs)
+{
+	return strcmp(lhs.c_str(), rhs.c_str()) == 0;
+}
+bool operator<=(const MyString& lhs, const MyString& rhs)
+{
+	return strcmp(lhs.c_str(), rhs.c_str()) <= 0;
+
+}
+bool operator<(const MyString& lhs, const MyString& rhs)
+{
+	return strcmp(lhs.c_str(), rhs.c_str()) < 0;
+
+}
+
+MyString::MyString(MyString&& otherString)
+{
+	str = otherString.str;
+	size = otherString.size;
+	otherString.str = nullptr;
+}
+
+MyString& MyString::operator=(MyString&& otherString)
+{
+	if (this != &otherString)
+	{
+		free();
+		str = otherString.str;
+		otherString.str = nullptr;
+		size = otherString.size;
+	}
+	return *this;
+}
diff --git a/Sem. 11/Examples/Bar/MyString/MyString.h b/Sem. 11/Examples/Bar/MyString/MyString.h
new file mode 100644
index 0000000..b37733a
--- /dev/null
+++ b/Sem. 11/Examples/Bar/MyString/MyString.h
@@ -0,0 +1,44 @@
+#pragma once
+
+#include <fstream>
+class MyString
+{
+	char* str;
+	size_t size;
+
+	void copyFrom(const MyString& other);
+	void free();
+
+public:
+	MyString();
+	MyString(const char*);
+
+	MyString(const MyString&);
+	
+	MyString(MyString&&); //move constructor that accepts rvalue;
+
+	MyString& operator=(const MyString& other);
+	MyString& operator=(MyString&& other);  //move op= that accepts rvalue;
+
+	~MyString();
+
+	size_t getSize() const;
+	void concat(const MyString& other);
+
+	const char* c_str() const;
+
+	MyString& operator+=(const MyString& other);
+
+	friend std::ostream& operator<<(std::ostream& stream, const MyString& str);
+	friend std::istream& operator>>(std::istream& stream, MyString& str);
+
+};
+
+MyString operator+(const MyString& lhs, const MyString& rhs);
+
+bool operator==(const MyString& lhs, const MyString& rhs);
+bool operator<=(const MyString& lhs, const MyString& rhs);
+bool operator<(const MyString& lhs, const MyString& rhs);
+
+
+//MyString name = "sdfsdf"
\ No newline at end of file
diff --git a/Sem. 11/Examples/Bar/Pair/Pair.hpp b/Sem. 11/Examples/Bar/Pair/Pair.hpp
new file mode 100644
index 0000000..5f83d0c
--- /dev/null
+++ b/Sem. 11/Examples/Bar/Pair/Pair.hpp
@@ -0,0 +1,43 @@
+#pragma once
+
+template<typename T, typename D>
+class Pair
+{
+	T first;
+	mutable D second; // For Drinks task!!
+public:
+	Pair() = default;
+	Pair(const T& first, const D& second);
+	const T& getFirst() const;
+	const D& getSecond() const;
+
+	void setFirst(const T& newValue);
+	void setSecond(const D& newValue) const ;
+};
+
+template<typename T, typename D>
+Pair<T,D>::Pair(const T& first, const D& second) : first(first), second(second)
+{}
+
+template<typename T, typename D>
+const T& Pair<T, D>::getFirst() const
+{
+	return first;
+}
+template<typename T, typename D>
+const D& Pair<T, D>::getSecond() const
+{
+	return second;
+}
+
+template<typename T, typename D>
+void Pair<T, D>::setFirst(const T& newValue)
+{
+	first = newValue;
+}
+
+template<typename T, typename D>
+void Pair<T, D>::setSecond(const D& newValue) const
+{
+	second = newValue;
+}
\ No newline at end of file
diff --git a/Sem. 11/Examples/Bar/Queue/Queue.hpp b/Sem. 11/Examples/Bar/Queue/Queue.hpp
new file mode 100644
index 0000000..5c9af06
--- /dev/null
+++ b/Sem. 11/Examples/Bar/Queue/Queue.hpp
@@ -0,0 +1,151 @@
+#pragma once
+#include <iostream>
+#include <exception>
+template <typename T>
+class MyQueue
+{
+	T* data;
+	size_t capacity;
+	size_t size;
+
+	size_t get;
+	size_t put;
+
+	void resize();
+
+	void copyFrom(const MyQueue<T>& other);
+	void free();
+public:
+	MyQueue();
+	
+	MyQueue(const MyQueue<T>& other);
+	MyQueue<T>& operator=(const MyQueue<T>& other);
+
+	void push(const T& obj);
+	void push(T&& obj); //позволява и местене
+	void pop();
+
+	const T& peek() const;
+	bool isEmpty() const;
+
+	~MyQueue();
+
+};
+
+template <typename T>
+MyQueue<T>::MyQueue()
+{
+	capacity = 4;
+	data = new T[capacity];
+	size = 0;
+	get = put = 0;
+}
+
+template <typename T>
+void MyQueue<T>::push(const T& obj)
+{
+	if (size == capacity)
+		resize();
+
+	data[put] = obj; //operator=
+	(++put) %= capacity;
+	size++;
+}
+
+template <typename T>
+void MyQueue<T>::push(T&& obj)
+{
+	if (size == capacity)
+		resize();
+
+	data[put] = std::move(obj); //move operator =
+	(++put) %= capacity;
+	size++;
+}
+
+template <typename T>
+bool MyQueue<T>::isEmpty() const
+{
+	return size == 0;
+}
+
+
+template <typename T>
+const T& MyQueue<T>::peek() const
+{
+	if (isEmpty())
+		throw std::logic_error("Empty queue!");
+
+	return data[get];
+}
+
+template <typename T>
+void MyQueue<T>::pop()
+{
+	if (isEmpty())
+		throw std::logic_error("Empty queue!");
+	(++get) %= capacity;
+	size--;
+}
+
+template <typename T>
+void MyQueue<T>::resize()
+{
+	T* resizedData = new T[capacity * 2];
+	for (size_t i = 0; i < size; i++)
+	{
+		resizedData[i] = data[get];
+		(++get) %= capacity;
+	}
+	capacity *= 2;
+	delete[] data;
+	data = resizedData;
+	get = 0;
+	put = size;
+}
+
+
+template <typename T>
+void MyQueue<T>::copyFrom(const MyQueue<T>& other)
+{
+	data = new T[other.capacity];
+	for (int i = 0; i < other.capacity; i++)
+		data[i] = other.data[i];
+
+	get = other.get;
+	put = other.put;
+
+	size = other.size;
+	capacity = other.capacity;
+
+}
+
+template <typename T>
+void MyQueue<T>::free()
+{
+	delete[] data;
+}
+
+template <typename T>
+MyQueue<T>::MyQueue(const MyQueue<T>& other)
+{
+	copyFrom(other);
+
+}
+
+template <typename T>
+MyQueue<T>& MyQueue<T>::operator=(const MyQueue<T>& other)
+{
+	if (this != &other)
+	{
+		free();
+		copyFrom(other);
+	}
+	return *this;
+}
+
+template <typename T>
+MyQueue<T>::~MyQueue()
+{
+	free();
+}
diff --git a/Sem. 11/Examples/Bar/Source2.cpp b/Sem. 11/Examples/Bar/Source2.cpp
new file mode 100644
index 0000000..e27b025
--- /dev/null
+++ b/Sem. 11/Examples/Bar/Source2.cpp
@@ -0,0 +1,23 @@
+#include <iostream>
+#include "Bar/Bar.h"
+
+int main()
+{
+	Bar b;
+
+	b.addDrink(Drink("Coke", 330), 2); //2x Coca cola 330 ml
+
+	b.addDrink(Drink("Fanta", 500));   //1x Fanta 500 ml
+
+	b.addAlcoholDrink(AlcoholDrink("Zagorka", 500, 5)); //1x Zagorka, 5% alc,  500 ml
+
+	std::cout << b.getAlcDrink().getName() << std::endl; // Zagorka 
+
+	std::cout << b.getDrink().getName() << std::endl; // Coke
+	std::cout << b.getDrink().getName() << std::endl; // Coke 
+	std::cout << b.getDrink().getName() << std::endl; // Fanta 
+
+	std::cout<<	b.getStats().soldAlcoholDrinks << std::endl; // 1
+	std::cout << b.getStats().soldDrinks << std::endl; // 3
+
+}
\ No newline at end of file