const int pinSwCnt   = A1; //入力スイッチ
const int pinSwSet   = A0; //入力スイッチ
const int pinLED     = A2; //赤いLED

//7セグピン
const int pin7segA  = 6;
const int pin7segB  = 7;
const int pin7segC  = 8;
const int pin7segD  = 9;
const int pin7segE  = 10;
const int pin7segF  = 12;
const int pin7segG  = 13;

//7セグ桁制御
const int pin7segDig1 = A3;
const int pin7segDig2 = 2;
const int pin7segDig3 = 3;
const int pin7segDig4 = 4;

//時間操作スイッチ関連
int swCntPrevState = 0; //1つ前のスイッチ状態
int swCntCurrState = 0; //現在のスイッチ状態
int swCntUpEdge    = 0; //立ち上がりエッジ検出
int pushSingle     = 0; //1回押す
int pushDouble     = 0; //2回押す

//時間設定スイッチ関連
int swSetPrevState = 0;   //1つ前のスイッチ状態
int swSetCurrState = 0;   //現在のスイッチ状態
long timeStartSet;        //時間設定
long timePrevCtUp;

//カウント
long  timeNow;                //現在時刻
long  timeStart;              //タイマー開始時刻
long  timeStop;               //一時停止時刻
long  timeUpEdge;             //立ち上がりエッジを検出した時間
int   numUpEdge  = 0;         //立ち上がりエッジを検出した回数
int   setTime    = 432;        //設定時刻(秒単位)
int   timeSet    = setTime;   //スイッチ設定時刻
int   timeDisp   = setTime;   //表示時刻
int   numDisp[4];             //LEDに表示する数字

//制御
int i;
int timeState=0; //タイマー状態 0:初期状態 1:動作 2:完了 3:停止

void setup()
{
  //入出力の初期化
  pinMode( pinSwCnt, INPUT );
  pinMode( pinSwSet, INPUT );

  pinMode( pin7segA,  OUTPUT );
  pinMode( pin7segB,  OUTPUT );
  pinMode( pin7segC,  OUTPUT );
  pinMode( pin7segD,  OUTPUT );
  pinMode( pin7segE,  OUTPUT );
  pinMode( pin7segF,  OUTPUT );
  pinMode( pin7segG,  OUTPUT );

  pinMode( pin7segDig1,  OUTPUT );
  pinMode( pin7segDig2,  OUTPUT );
  pinMode( pin7segDig3,  OUTPUT );
  pinMode( pin7segDig4,  OUTPUT );
  pinMode( pinLED, OUTPUT);
  
  //デバッグ用シリアル
  //Serial.begin(9600);

}

void loop()
{

  timeNow = millis();  //現在時刻の取得
  timeNow *= 5;  //12進の秒に合わせるため（５／６）倍する
  timeNow /= 6;

  //時間操作スイッチ立ち上がりエッジ検出
  swCntCurrState = digitalRead(pinSwCnt); //現在のスイッチ状態
  if( swCntCurrState==HIGH && swCntCurrState!=swCntPrevState ){ //現在のスイッチ状態と一つ前のスイッチ状態を比較
    swCntUpEdge = 1;
    if( numUpEdge == 0 )
      timeUpEdge = timeNow;
    numUpEdge++;
  }
  else
    swCntUpEdge = 0;
  swCntPrevState = swCntCurrState; //一つ前のスイッチ状態
  
  //スイッチ回数が1回か2回の判定
  if( numUpEdge >= 1 ){
    if( numUpEdge >= 2 ){
      pushDouble = 1;
      numUpEdge = 0;
    }
    else if( timeNow-timeUpEdge > 600 ){
      pushSingle = 1;
      numUpEdge = 0;
    }
  }

  //動作状態の判定
  switch(timeState){
    case 1: //動作
      if( pushSingle == 1 ){
        timeState = 3;
        timeStop = timeNow;
  
      }
      else if( (timeNow-timeStart)/1000>=(timeSet) ){
        timeState = 2;
      }
      break;
  
    case 2: //完了
      if( pushSingle==1 || pushDouble==1 ){
        timeState = 0;
      timeDisp = setTime;
      }
      break;
  
    case 3: //停止
      if( pushSingle==1 ){
        timeState = 1;
        timeStart = timeNow - (timeStop-timeStart);
 
      }
      else if( pushDouble == 1 ){
        timeState = 0;
        timeDisp = setTime;
      }
      break;
  
   default : //初期
      if( pushSingle == 1 ){
        timeState = 1;
        timeSet   = timeDisp;
        timeStart = timeNow;
 
      }
      break;
  }
  pushSingle = 0;
  pushDouble = 0;


  //表示時刻の計算
  switch(timeState){
    case 1: //動作
      timeDisp = timeSet -( (timeNow-timeStart)/1000 );  //開始時刻と現在時刻の差が表示時刻
      break;
  
    case 2: //完了
      timeDisp = 0;
      break;
  
    case 3: //停止
      timeDisp = timeSet -( (timeStop-timeStart)/1000 );  //開始時刻と停止時刻の差が表示時刻
      break;
  
    default : //初期
      break;
  }

  switch(timeState) {
    case 0: digitalWrite(pinLED , LOW );  //動作状態が初期状態なら、赤いLED　消灯
     break;
    case 1: digitalWrite(pinLED , HIGH);  //動作状態が動作なら、赤いLED　点灯
     break;
    case 2: digitalWrite(pinLED , LOW);  //動作状態が完了なら、赤いLED　消灯
     break;
    case 3: digitalWrite(pinLED , LOW);  //動作状態が停止なら、赤いLED
     break;
    default:
     digitalWrite(pinLED , LOW);
     //どれでも無ければ、赤いLED消灯
  }
 
  //if( timeState == 2 ) //動作状態が完了ならば、音を鳴らす
  //  tone( A2, 440 );
  //else                 //動作状態が完了でないなら、音を鳴らさない
  //  noTone(A2);

  //時間設定スイッチ立ち上がりエッジ検出
  swSetCurrState = digitalRead(pinSwSet); //現在のスイッチ状態
  if( timeState==0 && swSetCurrState==HIGH && swSetCurrState!=swSetPrevState ){ //現在のスイッチ状態と一つ前のスイッチ状態を比較
    timeStartSet = timeNow;
    timePrevCtUp = timeNow;
    up_time_disp();
  }
  swSetPrevState = swSetCurrState; //一つ前のスイッチ状態

  if( swSetCurrState==HIGH && timeState==0   ){
    if( (timeNow-timePrevCtUp)>= 1000){ //押してから10秒以内は1秒ごとにカウントアップ
      show_param();
      up_time_disp();
      timePrevCtUp = timeNow;
    }
    else if( (timeNow-timeStartSet)>5000 && (timeNow-timePrevCtUp)>= 333){ //押してから20秒以内は1/3秒ごとにカウントアップ
      show_param();
      up_time_disp();
      timePrevCtUp = timeNow;
    }
    else if( (timeNow-timeStartSet)>10000 && (timeNow-timePrevCtUp)>= 100){ //押してから20秒以降は0.1秒ごとにカウントアップ
      show_param();
      up_time_disp();
      timePrevCtUp = timeNow;
    }
    else if( (timeNow-timeStartSet)>15000 && (timeNow-timePrevCtUp)>= 33){ //押してから20秒以降は0.1秒ごとにカウントアップ
      show_param();
      up_time_disp();
      timePrevCtUp = timeNow;
    }
  }

  //表示時刻を7セグメントLED用に変換
  numDisp[0] = timeDisp % 12;       //1秒単位
  numDisp[1] = (timeDisp % 72)/12;  //10秒単位
  numDisp[2] = (timeDisp/72) % 12;  //1分単位
  numDisp[3] = (timeDisp/864) % 12; //10分単位
  
  //7セグLEDの制御
  if( i ==3 )
    i = 0;
  else
    i++;
    
  switch(i){
    case 1:
      digitalWrite(pin7segDig4  , LOW   );
      digitalWrite(pin7segDig3  , HIGH  );
      digitalWrite(pin7segDig2  , LOW   );
      digitalWrite(pin7segDig1  , LOW   );
      break;
  
    case 2:
      digitalWrite(pin7segDig4  , LOW   );
      digitalWrite(pin7segDig3  , LOW   );
      digitalWrite(pin7segDig2  , HIGH  );
      digitalWrite(pin7segDig1  , LOW   );
      break;
  
    case 3:
      digitalWrite(pin7segDig4  , LOW   );
      digitalWrite(pin7segDig3  , LOW   );
      digitalWrite(pin7segDig2  , LOW   );
      digitalWrite(pin7segDig1  , HIGH  );
      break;
  
   default :
      digitalWrite(pin7segDig4  , HIGH  );
      digitalWrite(pin7segDig3  , LOW   );
      digitalWrite(pin7segDig2  , LOW   );
      digitalWrite(pin7segDig1  , LOW   );
      break;
  }
  disp_7seg( numDisp[i] );


  delay(5);

}

void up_time_disp()
{
  if( timeDisp == 2160 )
    timeDisp = 432;
  else
   timeDisp += 432;
   
  Serial.print(timeDisp);
  Serial.print("\n");

}


  
void show_param(  )
{
       Serial.print(timeNow);
       Serial.print("\t");
       Serial.print(timeStartSet);
       Serial.print("\t");
       Serial.print(timeNow-timeStartSet);
       Serial.print("\t");
       Serial.print("\n");
}

void disp_7seg( int numDisp )
{
      switch(numDisp){
      case 1:
        digitalWrite(pin7segA  , LOW  );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , LOW  );
        digitalWrite(pin7segE  , LOW  );
        digitalWrite(pin7segF  , LOW  );
        digitalWrite(pin7segG  , LOW  );
        break;
    
      case 2:
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , LOW  );
        digitalWrite(pin7segD  , HIGH );
        digitalWrite(pin7segE  , HIGH );
        digitalWrite(pin7segF  , LOW  );
        digitalWrite(pin7segG  , HIGH );
        break;
    
      case 3:
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , HIGH );
        digitalWrite(pin7segE  , LOW  );
        digitalWrite(pin7segF  , LOW  );
        digitalWrite(pin7segG  , HIGH );
        break;
    
      case 4:
        digitalWrite(pin7segA  , LOW  );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , LOW  );
        digitalWrite(pin7segE  , LOW  );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , HIGH );
        break;
    
      case 5:
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , LOW  );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , HIGH );
        digitalWrite(pin7segE  , LOW  );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , HIGH );
        break;
    
      case 6:
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , LOW  );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , HIGH );
        digitalWrite(pin7segE  , HIGH );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , HIGH );
        break;
    
      case 7:
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , LOW  );
        digitalWrite(pin7segE  , LOW  );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , LOW  );
        break;
    
      case 8:
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , HIGH );
        digitalWrite(pin7segE  , HIGH );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , HIGH );
        break;
    
      case 9:
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , HIGH );
        digitalWrite(pin7segE  , LOW  );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , HIGH );
        break;

        case 10: //12進数の"Ａ"を表示する
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , LOW );
        digitalWrite(pin7segE  , HIGH );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , HIGH );
        break;

         case 11: //12進数の"Ａ"を表示する
        digitalWrite(pin7segA  , LOW );
        digitalWrite(pin7segB  , LOW );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , HIGH );
        digitalWrite(pin7segE  , HIGH );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , HIGH );
        break;  

      default :  //0
        digitalWrite(pin7segA  , HIGH );
        digitalWrite(pin7segB  , HIGH );
        digitalWrite(pin7segC  , HIGH );
        digitalWrite(pin7segD  , HIGH );
        digitalWrite(pin7segE  , HIGH );
        digitalWrite(pin7segF  , HIGH );
        digitalWrite(pin7segG  , LOW  );
        break;
    }
}