/*
 * BasicFlipClockLib.h
 *
 * Created: 8/7/2017 2:41:20 PM
 * Author : Spencer Hamblin
 * This is the main application code for the Basic Flip Clock designed and built by Spencer Hamblin
 * License : MIT, Do what ever you want with this code. But if you fuck it up it's on you.
 */

#define F_CPU 8000000UL
#include <avr/io.h>
#include <util/delay.h>
#include <avr/wdt.h>
//#include <avr/interrupt.h>
//#include <avr/pgmspace.h>
//#include <stdio.h>
//#include <math.h>

#define I2C_RTC_WRITE     0b11010000
#define I2C_RTC_READ      0b11010001
#define I2C_GPIO_WRITE    0b01000000
#define I2C_GPIO_READ     0b01000001
#define I2C_MODE_NORMAL   TWBR=32;

#define I2C_MODE_FAST     TWBR=2;//2

//Bit Order of Switches 0b:0,0,DOWN,UP,SET ALARM,SET TIME,LIGHT EN,ALARM EN
#define ALM_BUT_MASK      0b00000100
#define TIME_BUT_MASK     0b00001000
#define UP_BUT_MASK       0b00010000
#define DOWN_BUT_MASK     0b00100000
#define ALM_SWITCH_MASK   0b00000001
#define LIGHT_SWITCH_MASK 0b00000010

#define DISPLAY_DELAY_MS 30
#define TIME_REGISTER_RTC 0x00
#define ALARM_REGISTER_RTC 0x07

#define setingTimeOut 8000//Value for alarm time out, at time of comment 4000 is about a minute
#define lightTimeOut 40000//Value for light time out
#define alarmTimeOut 1//Value for alarm time out in minutes
#define maxBrightness 0xFFFF//16 bit value for maximum light level
#define lightMinutesBeforeAlarm 60//Value of when to turn on light before alarm

//Global Variables

//Functions prototypes
void initalSetUp();
uint8_t I2CStart(uint8_t address);
uint8_t I2CDataSend(uint8_t address);
uint8_t I2CDataRead(bool more);
void I2CStop();
void delayS(unsigned int S);
void delay_mS(unsigned int mS);

void tone(unsigned int frequencey);
void beep(unsigned int mS);//Loud beep intended for use as an alarm
void chirp();//Soft beep intended to be used as an indicator of sorts

void setLightsPercent(uint8_t brightness);//Set brightness based on 0-100%
unsigned int timeDifferenceToBrightness(uint8_t seconds, uint8_t minutes, uint8_t hours, uint8_t alarmMinute,uint8_t alarmHour, uint8_t startBeforeMinutes, unsigned int max);//Converts difference between alarm time to brightness setting
void setLight16Bit(unsigned int brightness);//Set brightness directly based on 16 bit input

void getTime(uint8_t &seconds, uint8_t &minutes, uint8_t &hours, uint8_t rtcRegister);
void setTime(uint8_t minutes, uint8_t hours, uint8_t rtcRegister);
//void getAlarm(uint8_t &minutes, uint8_t &hours);
//void setAlarm(uint8_t minutes,uint8_t hours);
//bool timeWindowAfter(uint8_t startMinutes,uint8_t startHours,uint8_t movingMinutes,uint8_t movingHours,uint8_t windowRange);//Returns false if movingTime is out of range of startTime by more than windowRange
bool timeWindowBefore(uint8_t startMinutes,uint8_t startHours,uint8_t movingMinutes,uint8_t movingHours,uint8_t windowRange);//Returns false if movingTime is out of range of startTime by more than windowRange

uint8_t getSwitchState();

bool capSensor();

void simpleDispUpdate(uint8_t newDispState[10]);
void displayUpdate(uint8_t *newDispState);
void displayUpdate(uint8_t *newDispState, uint8_t *oldDispState);
void displayUpdate(uint8_t *newDispState, uint8_t *oldDispState,bool smartEnable);
void alarmStatUpdate(bool alarmState);
void timeToDisplayFormat(uint8_t *newDispState, uint8_t minutes, uint8_t hours, bool alarmState);

void setDisplay(uint8_t *newDispState, uint8_t &minutes, uint8_t &hours, uint8_t &oldMinutes, uint8_t &oldHours,bool alarmEn);

void softAlarm();
//void systemTimeSet
//void copyDispState(uint8_t *newDispState, uint8_t *oldDispState);//Copyies new to old