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flashcard.js
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flashcard.js
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// bmc: Written by Bon Crowder @MathFour
var inquirer = require('inquirer');
var fs = require("fs");
var flashcardJsonFile = "flashcards.json";
Flashcard.prototype.save = function () {
thisString = JSON.stringify(this);
fs.readFile(flashcardJsonFile, "utf8", function (error, data) {
if (data.indexOf("[") > -1) {
newData = data.slice(0, -2);
dataToSave = newData + ", \n" + thisString + "\n]";
fs.writeFile(flashcardJsonFile, dataToSave, function (error) {
if (error) {
return console.log(error);
}
console.log("The flashcard has been saved!");
});
}
else {
console.log("Please include a valid *.json file in this directory per the README.md file at https://github.com/mathfour/flashcard-generator");
}
});
};
function Flashcard(type, front, back, blank) {
this.type = type;
this.front = front;
this.back = back;
this.blank = blank;
}
function createFlashcard() {
inquirer.prompt(
{
type: "list",
message: "What type of flashcard would you like to create?",
name: "type",
choices: ["Question & Answer", "Fill-in-the-Blank"]
}
).then(function (answer) {
if (answer.type === "Question & Answer") {
getFrontAndBackqa();
}
else if (answer.type === "Fill-in-the-Blank") {
getFrontAndBackcd();
}
});
}
function readFlashcard() {
inquirer.prompt(
{
type: "list",
message: "What type of flashcard would you like to view?",
name: "type",
choices: ["Question & Answer", "Fill-in-the-Blank"]
}
).then(function (answer) {
if (answer.type === "Question & Answer") {
viewFlashcard("qa");
}
else if (answer.type === "Fill-in-the-Blank") {
viewFlashcard("cloze");
}
});
}
function viewFlashcard(kind) {
fs.readFile("flashcards.json", "utf8", function (error, data) {
if (error) {
throw error;
}
else {
flashcardInfo = JSON.parse(data);
printRandomFlashcard(flashcardInfo, kind);
}
});}
function getFrontAndBackqa() {
inquirer.prompt([
{
type: "input",
message: "What's on the front?",
name: "front"
},
{
type: "input",
message: "What's on the back?",
name: "back"
}]
).then(function (answers) {
var myFlashcard = new Flashcard("qa", answers.front, answers.back);
myFlashcard.save();
});
}
function getFrontAndBackcd() {
inquirer.prompt([
{
type: "input",
message: "What is the full statement?",
name: "fullText"
},
{
type: "input",
message: "What part should be in the blank?",
name: "clozeDeletion"
}]
).then(function (answers) {
if (answers.fullText.indexOf(answers.clozeDeletion) === -1) {
console.log("you didn't put in a blank bit that makes sense.");
getFrontAndBackcd();
}
else {
front = answers.fullText.replace(answers.clozeDeletion, "__________");
back = answers.fullText;
blank = answers.clozeDeletion;
var myFlashcard = new Flashcard("cloze", front, back, blank);
myFlashcard.save();
}
})
}
// bmc: user starts here upon launch
function promptUserWhatToDo() {
inquirer.prompt(
{
type: "list",
message: "What would you like to do?",
name: "createOrStudy",
choices: ["Create a Flashcard", "Study from Flashcards"]
}).then(function (answers) {
if (answers.createOrStudy === "Create a Flashcard") {
createFlashcard();
}
else if (answers.createOrStudy === "Study from Flashcards") {
readFlashcard();
}
})
}
function getRandomIntInclusive(min, max) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min;
}
function printRandomFlashcard(flashcardInfo, kind) {
rand = getRandomIntInclusive(1, flashcardInfo.length);
if (flashcardInfo[rand].type === kind) {
console.log("The front is:\n", flashcardInfo[rand].front);
console.log("The back is:\n", flashcardInfo[rand].back);
}
else {
printRandomFlashcard(flashcardInfo, kind);
}
}
promptUserWhatToDo();