/*
Critical Making Prompt - Build a Non-human
Scaffold code
Matt Ratto
This code instantiates a knock-knock joke bot
It
Look here for more details on code functions:
 https://www.arduino.cc/reference/en/language/variables/data-types/stringobject/
 https://www.arduino.cc/reference/en/language/variables/data-types/array/
 https://www.arduino.cc/en/Tutorial/BuiltInExamples/SwitchCase
 https://www.arduino.cc/reference/en/language/functions/communication/serial/readstring/
*/
// Data
String intro[3] = {"Hello, I would like to ask you a few questions.", "Can I ask you more questions?", "Sorry, I only know these questions"};
String questions[2] = {"What is your favourite color", "How many hotdogs can you eat?"};
String firstAnswers[2] = {"That is a nice colour", "I love that"};
String secondAnswers[2] = {"Keep going", "Good job"};
int state = 0;  
int questionVal = 0;
String firstInput;
String secondInput;
void setup() {
 // initialize serial communication:
 Serial.begin(9600);                               //start serial port
 delay(1000);
 Serial.println("Hello and welcome to the bot");
 delay(100);
 /*
 Serial.println("Data");
 for (int i=0; i<2; i++){
   Serial.println(questions[i]);
 }
 for (int i=0; i<2; i++){
   Serial.println(firstAnswers[i]);
 }
 for (int i=0; i<2; i++){
   Serial.println(secondAnswers[i]);
 }
 */
}
void loop() {
switch (state) {                                    //start state machine
case 0:                                           // get input
 firstQuestion();      
 break;  
case 1:    // second joke
 secondQuestion();      
 break;
case 2:    // second joke
 calculation();      
 break;
} //end state machine
} //end loop
///begin functions
String userInput(){
String input;  
bool stillEntering = true;
while (stillEntering){
 if (Serial.available()) {
   char c = Serial.read();
   if (c == '\n') {
     stillEntering =false;  
}else{
 input = input + c;  
}
}
}
return input;
}
void firstQuestion(){
 Serial.println(questions[state]);
 firstInput = userInput();
 if (firstInput.indexOf("Pink")>=0){
     Serial.println(firstAnswers[1]);
 }else{
   Serial.println(firstAnswers[0]);
 }
 state = 1;
}
void secondQuestion(){
Serial.println(questions[state]);  
secondInput = userInput();
 Serial.println(secondInput.toInt());
 if (secondInput.toInt()<=3) {
   Serial.println(secondAnswers[1]);
 }else{
   Serial.println(secondAnswers[0]);
 }
 state = 2;
}
void calculation(){
if (firstInput.length()+secondInput.toInt() >2){
  Serial.println("I am super impressed");
}else{
  Serial.println("You could do better");
}
 state = 0;
}