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logic.js
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logic.js
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import { createLogic } from 'redux-logic';
import { isJapanese, isKana } from 'wanakana';
import { isEmpty, sample, difference } from 'lodash';
import { recordReview } from 'common/api';
import { SRS_RANGES } from 'common/constants';
import fixTerminalN from 'common/utils/fixTerminalN';
import matchAnswer from 'common/utils/matchAnswer';
import combineAnswers from 'common/utils/combineAnswers';
import increment from 'common/utils/increment';
import decrement from 'common/utils/decrement';
import determineCriticality from 'common/utils/determineCriticality';
import app from 'common/actions';
import {
selectPreviouslyIncorrect,
selectQuizSettings,
selectQueue,
selectQueueNeeded,
selectCurrent,
selectCurrentId,
selectSessionCorrectIds,
selectReviewEntities,
} from 'common/selectors';
import quiz from './actions';
import { selectQuizAnswer } from './selectors';
// we set this in quiz.advance and hold onto for clearing in quiz.answer.record
let autoAdvanceTimeout;
const isInputValid = (input = '') => !isEmpty(input) && isJapanese(input);
const cleanseInput = (input = '') => fixTerminalN(input.trim());
export const setCurrentLogic = createLogic({
type: [app.reviews.current.set, app.lessons.current.set],
validate({ getState, action }, allow, reject) {
const state = getState();
const category = action.type === `${app.reviews.current.set}` ? 'reviews' : 'lessons';
const current = selectCurrent(state);
const queue = selectQueue(state, { category });
const correct = selectSessionCorrectIds(state);
const newId = sample(difference(queue, [current.id]));
if (newId || queue.length) {
const newCurrent = selectReviewEntities(state)[newId];
allow({ ...action, payload: newCurrent });
}
if (!newId && current.id && !correct.includes(current.id)) {
console.log('Current was the only remaining item:');
console.log({
queue,
current,
newId,
});
allow({ ...action, payload: current });
}
// FIXME: think we need to (create a new action) and dispatch [category]current.clear()
// that clears current in common/reducers (not sure whether it needs to clear queue as well?)
if (!newId) {
console.log('No new id... End of queue?');
allow({ ...action, payload: { id: undefined } });
}
reject();
},
});
export const returnCurrentLogic = createLogic({
type: [app.reviews.current.return, app.lessons.current.return],
validate({ getState, action }, allow, reject) {
const state = getState();
const category = action.type === `${app.reviews.current.return}` ? 'reviews' : 'lessons';
const currentId = selectCurrentId(state);
const queue = selectQueue(state, { category });
const newId = sample(difference(queue, [currentId]));
if (newId) {
const newCurrent = selectReviewEntities(state)[newId];
allow({ ...action, payload: { newCurrent, currentId } });
} else {
console.log('Rejected returning current - no other queue items', {
queue,
currentId,
newId,
});
reject();
}
},
});
export const submitAnswerLogic = createLogic({
type: quiz.answer.submit,
latest: true,
process({ getState, action: { payload: { category } } }, dispatch, done) {
const state = getState();
// FIXME: pass in payload instead, these can be quiz state
const { value, isDisabled, isCorrect, isIncorrect } = selectQuizAnswer(state);
const current = selectCurrent(state);
const previouslyIncorrect = selectPreviouslyIncorrect(state, { category });
const answerValue = cleanseInput(value);
const isValid = isInputValid(answerValue);
if (!isValid) {
dispatch(quiz.answer.update({ isMarked: true, isValid: false }));
}
if (!isDisabled && isValid) {
dispatch(
quiz.answer.check({
category,
current,
answerValue,
previouslyIncorrect,
})
);
}
if (isDisabled && isValid) {
if (isIncorrect) {
dispatch(quiz.answer.incorrect({ category, current, previouslyIncorrect }));
}
dispatch(
quiz.answer.record.request({
category,
current,
isCorrect,
isIncorrect,
previouslyIncorrect,
})
);
}
done();
},
});
export const checkAnswerLogic = createLogic({
type: quiz.answer.check,
latest: true,
process({ getState, action }, dispatch, done) {
const { answerValue, current, previouslyIncorrect } = action.payload;
const { autoAdvance, autoExpandCorrect, autoExpandIncorrect } = selectQuizSettings(getState());
const matchedAnswer = matchAnswer(answerValue, combineAnswers(current));
const type = isKana(answerValue) ? 'kana' : 'kanji';
const updatedAnswer = {
type,
value: answerValue,
focus: false,
isMarked: true,
isValid: true,
isDisabled: true,
isCorrect: false,
isIncorrect: false,
};
if (matchedAnswer) {
dispatch(
quiz.answer.update({
...updatedAnswer,
value: matchedAnswer,
isCorrect: true,
})
);
dispatch(quiz.answer.correct(action.payload));
dispatch(quiz.info.update({ isDisabled: false, detailLevel: 1 }));
if (autoExpandCorrect && autoAdvance.speed > 0) {
dispatch(quiz.info.update({ activePanel: 'INFO' }));
}
}
if (!matchedAnswer) {
dispatch(quiz.answer.update({ ...updatedAnswer, isIncorrect: true }));
dispatch(quiz.info.update({ isDisabled: false, detailLevel: 0 }));
if (autoExpandIncorrect) {
dispatch(quiz.info.update({ activePanel: 'INFO' }));
}
if (previouslyIncorrect) {
dispatch(quiz.answer.incorrect(action.payload));
}
}
done();
},
});
export const incorrectAnswerLogic = createLogic({
type: quiz.answer.incorrect,
latest: true,
validate({ action }, allow, reject) {
if (action.payload.category === 'lessons') {
// no reason to downrank lessons
reject();
}
allow(action);
},
process({ action: { payload: { category, current, previouslyIncorrect } } }, dispatch, done) {
const incorrect = increment(current.incorrect);
let { streak } = current;
if (!previouslyIncorrect) {
streak = [...SRS_RANGES.THREE, ...SRS_RANGES.FOUR].includes(current.streak)
? decrement(current.streak - 1) // double decrement if close to burned
: Math.max(decrement(current.streak), 1); // disallow dropping to "lesson" status
}
const updatedReview = {
...current,
incorrect,
streak,
critical: determineCriticality(current.correct, incorrect),
};
dispatch(app[category].current.update(updatedReview));
done();
},
});
export const correctAnswerLogic = createLogic({
type: quiz.answer.correct,
latest: true,
process({ getState, action }, dispatch, done) {
const { current, category, previouslyIncorrect } = action.payload;
const { autoAdvance } = selectQuizSettings(getState());
if (autoAdvance.active) {
dispatch(quiz.advance({ category, autoAdvance }));
}
const correct = !previouslyIncorrect ? increment(current.correct) : current.correct;
const streak = !previouslyIncorrect ? increment(current.streak) : current.streak;
const updatedReview = {
...current,
correct,
streak,
critical: determineCriticality(correct, current.incorrect),
};
dispatch(app[category].current.update(updatedReview));
done();
},
});
export const ignoreAnswerLogic = createLogic({
type: quiz.answer.ignore,
validate({ getState, action }, allow, reject) {
// FIXME: pass in payload instead, these can be quiz state
const { isMarked, isDisabled, isCorrect, isIncorrect } = selectQuizAnswer(getState());
clearTimeout(autoAdvanceTimeout);
if (isMarked && isDisabled && (isCorrect || isIncorrect)) {
allow(action);
} else {
reject();
}
},
process({ action }, dispatch, done) {
const { category } = action.payload;
dispatch(quiz.info.reset());
setTimeout(() => {
dispatch(app[category].current.return());
dispatch(quiz.answer.reset());
done();
}, category === 'reviews' ? 700 : 200); // allow time for "[ignored]" animation to occur
},
});
export const recordAnswerLogic = createLogic({
type: quiz.answer.record.request,
process({ action }, dispatch, done) {
const { category, current, isCorrect, previouslyIncorrect } = action.payload;
clearTimeout(autoAdvanceTimeout);
// prevent appearance in both correct and incorrect
if (!previouslyIncorrect) {
dispatch(app[category][isCorrect ? 'correct' : 'incorrect'].add(current.id));
}
dispatch(app[category].current.set());
dispatch(quiz.answer.reset());
dispatch(quiz.info.reset());
recordReview({ id: current.id, isCorrect, previouslyIncorrect })
.then(() => {
dispatch(quiz.answer.record.success({ isCorrect, category }));
done();
})
.catch((err) => {
dispatch(quiz.answer.record.failure(err));
done();
});
},
});
export const loadQueueLogic = createLogic({
type: quiz.answer.record.success,
process({ getState, action }, dispatch, done) {
const { category, isCorrect } = action.payload;
const isQueueNeeded = selectQueueNeeded(getState(), { category });
if (isCorrect && isQueueNeeded) {
dispatch(app[category].queue.load.request());
done();
}
done();
},
});
export const autoAdvanceLogic = createLogic({
type: quiz.advance,
process({ action: { payload: { autoAdvance, category } } }, dispatch, done) {
autoAdvanceTimeout = setTimeout(() => {
dispatch(quiz.answer.submit({ category }));
done();
}, autoAdvance.speed);
},
});
export default [
setCurrentLogic,
returnCurrentLogic,
submitAnswerLogic,
ignoreAnswerLogic,
checkAnswerLogic,
incorrectAnswerLogic,
correctAnswerLogic,
recordAnswerLogic,
autoAdvanceLogic,
loadQueueLogic,
];