#include <SevSeg.h>
#include "AlarmTone.h"
#include "Clock.h"
const int COLON_PIN = 13;
AlarmTone alarmTone;
Clock clock;
SevSeg sevseg;
enum DisplayState {
  DisplayClock,
  DisplayAlarmStatus,
  DisplayAlarmTime,
  DisplayAlarmActive,
  DisplaySnooze,
};
DisplayState displayState = DisplayClock;
long lastStateChange = 0;
void changeDisplayState(DisplayState newValue) {
  displayState = newValue;
  lastStateChange = millis();
}
long millisSinceStateChange() {
  return millis() - lastStateChange;
}
void setColon(bool value) {
  digitalWrite(COLON_PIN, value ? LOW : HIGH);
}
void displayTime() {
  DateTime now = clock.now();
  bool blinkState = now.second() % 2 == 0;
  sevseg.setNumber(now.hour() * 100 + now.minute());
  setColon(blinkState);
}
void clockState() {
  displayTime();
}
void alarmStatusState() {
  setColon(false);
  sevseg.setChars(clock.alarmEnabled() ? " on" : " off");
  if (millisSinceStateChange() > ALARM_STATUS_DISPLAY_TIME) {
    changeDisplayState(clock.alarmEnabled() ? DisplayAlarmTime : DisplayClock);
    return;
  }
}
void alarmTimeState() {
  DateTime alarm = clock.alarmTime();
  sevseg.setNumber(alarm.hour() * 100 + alarm.minute(), -1);
}
void alarmState() {
  displayTime();
}
void snoozeState() {
  sevseg.setChars("****");
  if (millisSinceStateChange() > SNOOZE_DISPLAY_TIME) {
    changeDisplayState(DisplayClock);
    return;
  }
}
void setup() {
  Serial.begin(115200);
  clock.begin();
  pinMode(COLON_PIN, OUTPUT);
  byte digits = 4;
  byte digitPins[] = {2, 3, 4, 5};
  byte segmentPins[] = {6, 7, 8, 9, 10, 11, 12};
  bool resistorsOnSegments = false;
  bool updateWithDelays = false;
  bool leadingZeros = true;
  bool disableDecPoint = true;
  sevseg.begin(DISPLAY_TYPE, digits, digitPins, segmentPins, resistorsOnSegments,
               updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90);
}
void loop() {
  sevseg.refreshDisplay();
  switch (displayState) {
    case DisplayClock:
      clockState();
      break;
    // case DisplayAlarmStatus:
    //   alarmStatusState();
    //   break;
    // case DisplayAlarmTime:
    //   alarmTimeState();
    //   break;
    // case DisplayAlarmActive:
    //   alarmState();
    //   break;
    // case DisplaySnooze:
    //   snoozeState();
    //   break;
  }
}