//step 32

useEffect(() => {
    //get a list of 3 randomly selected questions
    if ((props.GameData !== undefined) && (props.GameData.questionAsker.uid === props.auth.uid) && (props.GameData.question === "")) {
      setSelectedQuestion({ id: -1, text: '' });
      setCustomQuestionText('');
      const getQuestions = async() => {
        let someQuestions = [];
        while (someQuestions.length < 3) {
          let alreadyPicked = false;
          let key = firestore().collection("ao-questions").doc().id;
          let potentialQuestion = "";
          let dbQuestion = await firestore().collection("ao-questions").where(firebase.firestore.FieldPath.documentId(), ">=", key).limit(1).get();
          
          if (dbQuestion.size > 0) {
            dbQuestion.forEach(q => {
                potentialQuestion = q.data().questionText;
            });
          } else {
            dbQuestion = await firestore().collection("ao-questions").where(firebase.firestore.FieldPath.documentId(), "<", key).limit(1).get();
            dbQuestion.forEach(q => {
                potentialQuestion = q.data().questionText;
            });
          }
          someQuestions.forEach(question => {
            if (question === potentialQuestion) {
              alreadyPicked = true;
            }
          });
          if (!alreadyPicked) {
            someQuestions.push(potentialQuestion);
          }
        }
        setQuestions(someQuestions);
      }
      getQuestions();
    }
  }, [props.GameData]);


//step 34
const askQuestion = () => {
    let questionText = '';
    if (customQuestionText.length > 0) {
      questionText = customQuestionText;
    } else if (selectedQuestion.text.length > 0) {
      questionText = selectedQuestion.text;
    }

    if (questionText.length > 0) {
      firestore().collection("ao-games").doc(props.GameID).update({
        question: questionText,
      })
      .catch(err => {
        let friendlyError = { friendly: "Something has gone horribly wrong.", technical: err.toString() };
        setError(() => { throw friendlyError });
      });
    }
  };

//step 36
  const addLetter = () => {
    return firestore().collection("ao-games").doc(props.GameID).update({
      answer: props.GameData.answer + selectedLetter,
    })
    .then(response => {
      let newAnsweringSpirit = getRandomPlayer();
      while ((newAnsweringSpirit.uid === props.GameData.answeringSpirit.uid) || (newAnsweringSpirit.uid === props.GameData.questionAsker.uid)) {
        newAnsweringSpirit = getRandomPlayer();
      }
      updateAnsweringSpirit(newAnsweringSpirit);
    })
    .catch(err => {
      let friendlyError = { friendly: "Something has gone horribly wrong.", technical: err.toString() };
      setError(() => { throw friendlyError });
    });
  };

//step 37
  const updateAnsweringSpirit = newAnsweringSpirit => {
    return firestore().collection("ao-games").doc(props.GameID).update({
      answeringSpirit: newAnsweringSpirit,
    })
    .catch(err => {
      let friendlyError = { friendly: "Something has gone terribly wrong.", technical: err.toString() };
      setError(() => { throw friendlyError });
    });
  };


//step 38
const finalizeAnswer = () => {
    let newQuestionAsker = getRandomPlayer();
    let newAnsweringSpirit = getRandomPlayer();
    while (newQuestionAsker.uid === newAnsweringSpirit.uid) {
      newQuestionAsker = getRandomPlayer();
    }
    return firestore().collection("ao-games").doc(props.GameID).update({
      questionAsker: newQuestionAsker,
      answeringSpirit: newAnsweringSpirit,
      question: '',
      answer: '',
    })
    .catch(err => {
      let friendlyError = { friendly: "Something has gone terribly wrong.", technical: err.toString() };
      setError(() => { throw friendlyError });
    });
  };