#ifndef __FORMAT_HPP__
#define __FORMAT_HPP__

#include <iostream>
#include <string>
#include <fstream>

// base class
class format
{
protected:
	unsigned int width;

private:
	virtual void justify(const std::string&) = 0;

public:
	format(int w) { width = w; }
	virtual ~format() {}

	void output()
	{
		std::string line, word;
		std::ifstream inFile("quote.txt");

		inFile >> word;
		line = word;

		while (inFile >> word)
		{
			if (line.length() + word.length() + 1 > width)
			{
				// we have obtained one line
				justify(line);
				line = "";
				line = word;
			}
			else
			{
				line = line + " "+ word;
			}
		}

		justify(line);
		inFile.close();

	}

};


// child class 1
class LeftJustify : public format
{
public:
	LeftJustify(int w) :format(w){}
private:
	virtual void justify(const std::string& line)
	{
		std::cout << line << std::endl;
	}
};

// child class 2
class RightJustify : public format
{
public:
	RightJustify(int w) :format(w) {}
private:
	virtual void justify(const std::string& line)
	{
		for (int i = 0 ; i < width - line.length(); i++)
		{
			std::cout << " ";
		}
		std::cout << line << std::endl;
	}
};

// child class 3
class CenterJustify : public format
{
public:
	CenterJustify(int w) :format(w) {}

private:
	virtual void justify(const std::string& line)
	{
		for (int i=0; i < (width - line.length())/2; i++)
		{
			std::cout << " ";
		}
		std::cout << line << std::endl;
	}
};


#endif