@sunzhongmou/math/lib/exercise.js

Mathematical knowledge context

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Exercise = exports.QuestionType = void 0;
const uuid_1 = require("uuid");
var QuestionType;
(function (QuestionType) {
    QuestionType[QuestionType["RAW"] = 0] = "RAW";
    QuestionType[QuestionType["FILL"] = 1] = "FILL";
})(QuestionType = exports.QuestionType || (exports.QuestionType = {}));
class Exercise {
    constructor(rawQuestion, fillQuestion) {
        this.id = uuid_1.v4();
        this.rawQuestions = rawQuestion;
        this.fillQuestions = fillQuestion;
    }
    sameIdentityAs(other) {
        return this.id === other.id;
    }
    addQuestion(question, type) {
        switch (type) {
            case QuestionType.FILL:
                this.fillQuestions.push(question);
                break;
            case QuestionType.RAW:
                this.rawQuestions.push(question);
                break;
            default:
                this.rawQuestions.push(question);
        }
    }
    generateRawQuestions() {
        const questionList = [];
        for (const exp of this.rawQuestions) {
            questionList.push(exp.getRaw());
        }
        return questionList;
    }
    generateFillQuestions() {
        const questionList = [];
        for (const exp of this.fillQuestions) {
            let rawQuestion = exp.getRaw();
            const hiddenOperand = Math.random() >= 0.5;
            if (hiddenOperand) {
                rawQuestion = rawQuestion.replace(`${exp.operationSets[0].operand}`, //TODO: need refactor
                '__');
            }
            else {
                rawQuestion = rawQuestion.replace(`${exp.destinationOperand}`, '__');
            }
            rawQuestion = rawQuestion.replace('=', `= ${exp.execute()}`);
            questionList.push(rawQuestion);
        }
        return questionList;
    }
    generate() {
        let questionList = [];
        questionList = questionList.concat(this.generateRawQuestions());
        questionList = questionList.concat(this.generateFillQuestions());
        return questionList;
    }
}
exports.Exercise = Exercise;
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