#pragma once

#include <Arduino.h>
#include <SD.h>
#include "config.h"

class DataSource {
private:
public:
	DataSource() {};
	~DataSource() {};
	virtual size_t read(uint8_t* buf, size_t len) = 0;
	virtual uint8_t read() = 0;
	virtual size_t position() = 0;
	virtual void seek(size_t position) = 0;
	virtual size_t size() = 0;
	virtual void close() = 0;
	virtual void skip_id3_tag();
};

class SDDataSource : public DataSource {
private:
	File _file;
public:
	SDDataSource(String file);
	~SDDataSource();
	size_t read(uint8_t* buf, size_t len);
	uint8_t read();
	size_t position();
	void seek(size_t position);
	size_t size();
	void close();
	void skip_id3_tag();
};