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ouicards.js
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ouicards.js
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;(function(exports) {
function loadFromArray(array) {
ouicards.flashcards = array;
resetBuckets();
}
function loadFromBrowser(selector, delimiter) {
var flashcards = [],
userInput = $(selector).val().split('\n');
// Get rid of empty questions
userInput = userInput.filter(function(card) {
return card !== "";
});
if (userInput.length === 0) {
console.log('There are no flashcards to upload.');
return;
}
userInput.forEach(function(card) {
var parsedCard = card.split(delimiter);
flashcards.push({question: parsedCard[0], answer: parsedCard[1]});
});
ouicards.flashcards = flashcards;
resetBuckets();
return getFromLS();
}
function next() {
var newQuestion,
bigInterval = Math.ceil(ouicards.flashcards.length / 3) + 1,
smallInterval = Math.ceil(ouicards.flashcards.length / 6) + 1;
// Show an answer from bucket C once every bigInterval
// So long as Bucket C it's not empty
if (ouicards.counter % bigInterval === 0 && ouicards.bucketC.length !== 0) {
newQuestion = getQuestion(ouicards.bucketC);
ouicards.currentBucket = ouicards.bucketC;
// Show an answer from bucket B once every smallInterval
// So long as Bucket B it's not empty
} else if (ouicards.counter % smallInterval === 0 && ouicards.bucketB.length !== 0) {
newQuestion = getQuestion(ouicards.bucketB);
ouicards.currentBucket = ouicards.bucketB;
// Show an answer from Bucket A, so long as it's not empty
} else if (ouicards.bucketA.length !== 0) {
newQuestion = getQuestion(ouicards.bucketA);
ouicards.currentBucket = ouicards.bucketA;
// Show an answer from Bucket B, so long as it's not empty
} else if (ouicards.bucketB.length !== 0) {
newQuestion = getQuestion(ouicards.bucketB);
ouicards.currentBucket = ouicards.bucketB;
// Show a question from Bucket C, so long as it's not empty
} else if (ouicards.bucketC.length !== 0) {
newQuestion = getQuestion(ouicards.bucketC);
ouicards.currentBucket = ouicards.bucketC;
} else {
console.log('There was a serious problem with ouicards. You should never see ');
}
// Reset ouicards.counter if it's greater than flashcard count, otherwise ++ it
ouicards.counter >= ouicards.flashcards.length ? ouicards.counter = 1 : ouicards.counter++;
return newQuestion;
}
function correct() {
if (ouicards.currentBucket === ouicards.bucketA) {
moveQuestion(ouicards.bucketA, ouicards.bucketB);
} else if (ouicards.currentBucket === ouicards.bucketB) {
moveQuestion(ouicards.bucketB, ouicards.bucketC);
} else if (ouicards.currentBucket === ouicards.bucketC) {
moveQuestion(ouicards.bucketC, ouicards.bucketC);
} else
console.log('Hmm, you should not be here.');
saveToLS();
}
function wrong() {
moveQuestion(ouicards.currentBucket, ouicards.bucketA);
saveToLS();
}
function moveQuestion(fromBucket, toBucket) {
toBucket.push(fromBucket.shift());
}
function getQuestion(bucket) {
// Prevent from looping thru an empty bucket
if (!bucket || bucket.length === 0) {
console.log("You can't load an empty set of questions.");
return;
}
return buildQuestionHTML(bucket[0]);
}
function buildQuestionHTML(rawQuestion) {
var questionEl, answerEl;
questionEl = document.createElement('p');
questionEl.innerHTML = rawQuestion.question;
answerEl = document.createElement('p');
answerEl.innerHTML = rawQuestion.answer.replace(/\n/g, '<br>');
return {question: questionEl, answer: answerEl};
}
function saveToLS() {
localStorage.flashcards = JSON.stringify(ouicards.flashcards);
localStorage.bucketA = JSON.stringify(ouicards.bucketA);
localStorage.bucketB = JSON.stringify(ouicards.bucketB);
localStorage.bucketC = JSON.stringify(ouicards.bucketC);
}
function getFromLS() {
ouicards.flashcards = JSON.parse(localStorage.flashcards || '[]');
ouicards.bucketA = JSON.parse(localStorage.bucketA || '[]');
ouicards.bucketB = JSON.parse(localStorage.bucketB || '[]');
ouicards.bucketC = JSON.parse(localStorage.bucketC || '[]');
ouicards.currentBucket = ouicards.bucketA.length ? ouicards.bucketA :
ouicards.bucketB.length ? ouicards.bucketB :
ouicards.bucketC.length ? ouicards.bucketC : [];
ouicards.counter = 1;
return {flashcards: ouicards.flashcards, bucketA: ouicards.bucketA, bucketB: ouicards.bucketB, bucketC: ouicards.bucketC};
}
function resetBuckets() {
ouicards.bucketA = ouicards.flashcards.slice(0);
ouicards.currentBucket = ouicards.bucketA;
ouicards.bucketB = [];
ouicards.bucketC = [];
ouicards.counter = 1;
saveToLS();
}
exports.ouicards = {
currentBucket: [],
flashcards: [],
bucketA: [],
bucketB: [],
bucketC: [],
counter: 1,
loadFromArray: loadFromArray,
loadFromBrowser: loadFromBrowser,
next: next,
correct: correct,
wrong: wrong,
moveQuestion: moveQuestion,
getQuestion: getQuestion,
buildQuestionHTML: buildQuestionHTML,
saveToLS: saveToLS,
getFromLS: getFromLS,
resetBuckets: resetBuckets
};
// jQuery magic
var showNext = function() {
var result = next();
$('#current-question').first().html(result['question']);
$('#current-answer').first().hide().html(result['answer']);
};
$.fn.ouicards = function() {
var result = [];
this.find('ul').hide().children().each(function() {
result.push({
question: $(this).find('.question').text(),
answer: $(this).find('.answer').text()
});
});
loadFromArray(result);
$('a#correct').click(function(event) {
event.preventDefault();
correct();
showNext();
});
$('a#wrong').click(function(event) {
event.preventDefault();
wrong();
showNext();
});
$('a#show-answer').click(function(event){
event.preventDefault();
$('#current-answer').first().show();
});
showNext();
};
})(this);