/*********************************************************************************/
/**
 * File: dvoraj42.h
 * Author: Jan Dvorak z Vozerovic 
 * FEL-ID: dvoraj42
 * e-mail: dvorkaman@gmail.com
 * site: dvorkaman.php5.cz
 */

#ifndef __dvoraj42_h__
#define __dvoraj42_h__

    #ifdef __cplusplus
    extern "C" {
    #endif

#include "stdint.h"

/*********************************************************************************/
/**
 * Defines
 */
#define LCD_WIDTH 128
#define LCD_HEIGHT 64
#define LCD_PAGE_SIZE 8
#define LCD_BUTTON_WIDTH 32        
#define LCD_BUTTON_HEIGHT 16

#define ENCODER_MIDDLE 0x1 << 16 // 2^16
#define ENCODER_BITS_PER_TICK 2 // value changes 2^2 per one tick
                
#define LETTER_WIDTH 5 // in pixels
        
#define ACCELEROMETER_VALUE_SHIFT 6 // how much lower bits to cut
#define ACCELEROMETER_MIN_VAL 10 // minimal treshold for user
#define ACCELEROMETER_MAX_VAL 300 // maximal treshold for user
#define ACCELEROMETER_MAX_VALUES 1000
        
#define FLASH_PREAMB 0x3598 // to ensure data consistency
#define FLASH_START  0x08020000 // from
#define FLASH_END    0x080A0000 // to
#define FLASH_START_SECTOR FLASH_Sector_5  // from sector
#define FLASH_END_SECTOR   FLASH_Sector_9  // to sector
        
        
/*********************************************************************************/
/**
 * Structures
 */
typedef struct
{
    int button1;
    int button2;
    int pressed;   // detection wheter button is pressed (for second type of input) 
    int direction; // encoder detection + - 1
}input;

typedef struct // 64b
{
    uint16_t preambule; // 0x3598
    uint16_t accelMinValue;
    int16_t calibrationX; // signed version of number
    int16_t calibrationY;
}settings;

typedef struct // 96b
{
    uint16_t preambule; // 0x3598
    uint32_t brokenAtTime;
    uint16_t measuredValuesCount;
    uint32_t systemTime;
}materialInfo;

typedef struct // 64b
{
     uint32_t time;
     int32_t value;
}data;
        
/*********************************************************************************/
/**
 * Headers
 */
void LCDDrawFullImage(uint8_t image[]);
void LCDDrawImage(uint8_t image[], int offsetX, int offsetY, int width, int height);
void LCDDrawButton(uint8_t image[], int x, int y);
void LCDMergeImages(uint8_t source[], uint8_t mergeWith[]);
void ConvertBitmapToLCDImage(uint8_t bitmap[], uint8_t image[], int width, int height);
void LCDPrintString(char *string, int x, int row);
void LCDPrintNumber(int number, int digits, int x, int row);
void LCDShowTime(int seconds);
void LCDSetPixel(uint8_t image[], int x, int y, int value);
void LCDShowMeasuredValues(uint32_t timeOffset, int zoom);

int getButton1State();
int getButton2State();

void initializeEncoder();
void handleEncoderPosition(int pin);
int getEncoderPosition();
int getEncoderDirection();
unsigned int getEncoderTicks();

void initializeAccelerometer(void);
int convertMeasuredAccelerometer(unsigned int value);
void handleAccelerometerData(void);
void setMaterialBroken(void);

void delayCycles(unsigned int cycles);

int bitmapGetPixelAt(uint8_t bitmap[], int x, int y, int width);
void bitmapSetPixelAt(uint8_t bitmap[], int value, int x, int y, int width);

void drawActualState(void);

input readInput(int allowPress);

void initializeFLASH();
void FLASHRestoreToDefault(void);
void FLASHLoadData(void);
void FLASHSaveData(void);        
void FLASHErase(void);

void clearMearusedData(void);

void convertSecToTime(int seconds, char* outputMinSec, char* outputHour);

/*********************************************************************************/
    #ifdef __cplusplus
    }
    #endif
#endif