#ifndef TEXT_ACCESS_H
#define TEXT_ACCESS_H

#include <memory>
#include <string>
#include <vector>

#include "FilePath.h"

class TextAccess
{
public:
	static std::shared_ptr<TextAccess> createFromFile(const FilePath& filePath);
	static std::shared_ptr<TextAccess> createFromString(const std::string& text, const FilePath& filePath = FilePath());
	static std::shared_ptr<TextAccess> createFromLines(const std::vector<std::string>& lines, const FilePath& filePath = FilePath());

	virtual ~TextAccess();

	unsigned int getLineCount() const;
	bool isEmpty() const;

	FilePath getFilePath() const;

	/**
	 * @param lineNumber: starts with 1
	 */
	std::string getLine(const unsigned int lineNumber) const;
	/**
	 * @param firstLineNumber: starts with 1
	 * @param lastLineNumber: starts with 1
	 */
	std::vector<std::string> getLines(const unsigned int firstLineNumber, const unsigned int lastLineNumber);
	const std::vector<std::string>& getAllLines() const;
	std::string getText() const;

private:
	static std::vector<std::string> readFile(const FilePath& filePath);
	static std::vector<std::string> splitStringByLines(const std::string& text);

	TextAccess();
	TextAccess(const TextAccess&);
	TextAccess operator=(const TextAccess&);

	bool checkIndexInRange(const unsigned int index) const;
	bool checkIndexIntervalInRange(const unsigned int firstIndex, const unsigned int lastIndex) const;

	FilePath m_filePath;
	std::vector<std::string> m_lines;
};

#endif // TEXT_ACCESS_H