/**
 * Minitel library for Arduino (v0.2) / April 2015
 * http://github.com/01010101/Minitel
 *
 * By Jerome Saint-Clair aka 01010101
 * http://saint-clair.net
 * 
 * For the Graffiti Research Lab France
 * http://graffitiresearchlab.fr
 * 
 * Based on works by the Tetalab (Fabrice, Renaud, PG & Phil)
 * http://tetalab.org
 */

#ifndef Minitel_h
#define Minitel_h

#include "Arduino.h"
#include "SoftwareSerial.h"

// Modes

#define GRAPHIC_MODE 14
#define TEXT_MODE 15

#define HORIZONTAL 0
#define VERTICAL 1

// Cursor moves
#define LEFT 8
#define RIGHT 9
#define DOWN 10
#define UP 11

// Cursor positionning
#define HOME 13
#define LINE_END 24

#define TOP_LEFT 1
#define TOP_RIGHT 2
#define BOTTOM_LEFT 3
#define BOTTOM_RIGHT 4
#define CENTER 5

// Cursor visibility
// Preceeded by 27
#define CURSOR_SHOW 17
#define CURSOR_HIDE 20

// Clear screen
#define CLEARSCREEN 12

// Font type
// Preceeded by 27
// DOUBLE-HEIGHT and DOUBLE may not work on certain Minitels
#define SIZE_NORMAL 76
#define SIZE_DOUBLE_HEIGHT 77
#define SIZE_DOUBLE_WIDTH 78
#define SIZE_DOUBLE 79


// Colors (+80 for background, +64 for text)
// Preceeded by 27
// 64->71 txt color black, red, green, yellow, blue, magenta, cyan, white
// 80->87 bg color black, red, green, yellow, blue, magenta, cyan, white
#define BLACK 0
#define RED 1
#define GREEN 2
#define YELLOW 3
#define MAGENTA 4
#define BLUE 5
#define CYAN 6
#define WHITE 7

// Blink
// Preceeded by 27
#define BLINK_ON 72
#define BLINK_OFF 73

// Incrustation
// Preceeded by 27
#define INCRUSTATION_ON 75
#define INCRUSTATION_OFF 74

// Underline
#define UNDERLINE_ON 90
#define UNDERLINE_OFF 89

// Underline
#define LINE_MASK_ON 88
#define LINE_MASK_OFF 95

// Video mode
#define VIDEO_INVERT 93
#define VIDEO_STANDARD 92
#define VIDEO_TRANSPARENT 94

// Speeds
#define SPEED_75 0
#define SPEED_300 1
#define SPEED_4800 100
#define SPEED_9600 111 // ??? Minitel 2 ???

// Bip
#define BIP 7

// Accents
// #define ACCUTE 65
// #define GRAVE 66
// #define CIRCUMFLEX 67
// #define UMLAUT 72

#define SUB_ARTICLE_SEPARATOR 31;

// Preceeded by 25
#define SPE_CHAR_POUND 35
#define SPE_CHAR_DOLLAR 36
#define SPE_CHAR_HASHTAG 38
#define SPE_CHAR_PARAGRAPH 39
#define SPE_CHAR_ARROW_LEFT 44
#define SPE_CHAR_ARROW_UP 45
#define SPE_CHAR_ARROW_RIGHT 46
#define SPE_CHAR_ARROW_DOWN 47
#define SPE_CHAR_DEGREE 48
#define SPE_CHAR_MINUS_PLUS 49
#define SPE_CHAR_DIVIDE 56
#define SPE_CHAR_1_4 60 // output only ?
#define SPE_CHAR_1_2 61 // output only ?
#define SPE_CHAR_3_4 62 // output only ?
#define SPE_CHAR_GRAVE 65
#define SPE_CHAR_ACUTE 66
#define SPE_CHAR_CIRCUMFLEX 67
#define SPE_CHAR_UMLAUT 72
#define SPE_CHAR_CEDIL 75
#define SPE_CHAR_UPPER_OE 106
#define SPE_CHAR_LOWER_OE 122
#define SPE_CHAR_BETA 123

// Non Arduino characters
#define SPE_CHAR_ARROW_UP2 94
#define SPE_CHAR_PIPE_BOTTOM 95
#define SPE_CHAR_PIPE_MIDDLE 96
#define SPE_CHAR_PIPE_LEFT 123
#define SPE_CHAR_PIPE_CENTER 124
#define SPE_CHAR_PIPE_RIGHT 125
#define SPE_CHAR_PIPE_TOP 126

// TODO Escape character handling ???

#define SOMMAIRE 198
#define ANNULATION 197
#define RETOUR 66
#define REPETITION 195
#define GUIDE 68
#define CORRECTION 71
#define SUITE 72
#define ENVOI 65

class Minitel : public SoftwareSerial {

private :	

	String accents = "àáâäèéêëìíîïòóôöùúûü";
	
	byte _currentBgColor;
	byte _currentTextColor;
	byte _currentMode;
	byte _currentVideo;
	byte _currentSize;
	boolean _currentUnderline;
	boolean _currentBlink;
	boolean _currentShowCursor;
	boolean _menuKeyPressed;
			
	int _menuKey;
	int _specialCharacterKey;
	int _characterKey;
	int _accentKey;
	
	char _nullChar = '~';

	void init();
	void mode(byte mode);
	void cursor(boolean b);
	void blink(boolean b);
	void pixelate(boolean b);
	void video(byte v);
	void incrustation(boolean b);
	void lineMask(boolean b);
	
	boolean isValidChar(byte index);
	boolean isSpecialChar(byte c);

	boolean isAccent(char c);
	boolean printAccentChar(char c);
	void printAccent(int index);
	char getAccentLetter(int letterIndex);

	void refreshSettings();


public :

	Minitel();
	Minitel(int rx, int tx);

	void serialprint7(byte b);

	byte getGraphicChar(String s);
	void graphic(String s, int x, int y);
	void graphic(String s);

	void textByte(byte c);
	void textByte(byte b, int x, int y);
	boolean textChar(byte c);
	boolean textChar(byte c, int x, int y);
	void text(String s, int x, int y);
	void text(String s);
	void text(String s, int x, int y, int orientation);
	void text(String s, int orientation);
	byte getCharByte(char c);
	void specialChar(byte c, int x, int y);
	void specialChar(byte c);
	void semiGraphic(byte b, int x, int y);
	void semiGraphic(byte b);

	void repeat(byte n);

	void bgColor(byte c);
	void textColor(byte c);
	void useDefaultColors();
	
	void moveCursorTo(byte x, byte y);
	void moveCursor(byte dir);
	void moveCursorTo(byte location);
	void moveCursor(byte dir, int n);
	
	void cursor();
	void noCursor();
	
	void clearScreen();
	
	void graphicMode();
	void textMode();
	
	void blink();
	void noBlink();
	
	void charSize(byte type);
	
	void incrustation();
	void noIncrustation();
	void pixelate();
	void noPixelate();
	void lineMask();
	void noLineMask();
	void standardVideo();
	void invertVideo();
	void transparentVideo();
	
	void setMaxSpeed();
	
	void bip(unsigned long duration);

	void rect(char c, int x, int y, int w, int h);
	void rect(byte c, int x, int y, int w, int h);
	void spiral(int x, int y, int siz, int c);

	void readKey();
	boolean keyTyped();

	boolean isMenuKey();
	int getMenuKey();

	boolean isSpecialCharacterKey();
	int getSpecialCharacterKey();

 	boolean accentKeyStored();
 	int getAccentKey();

	boolean isCharacterKey();
	boolean isSerializableKey();
	char getCharacterKey();



};

#endif