Merge pull request #31 from arch-spatula/feat/card-model

Feat/card model

Author: arch-spatula

src/models/Cards/Cards.test.ts

@@ -0,0 +1,73 @@
+import { CardCollection } from '.';
+
+describe('CardCollection', () => {
+  let cardCollection: CardCollection;
+
+  beforeEach(() => {
+    cardCollection = new CardCollection();
+  });
+
+  it('should add a card to the collection', () => {
+    const question = 'What is the capital of France?';
+    const answer = 'Paris';
+    const count = 0;
+    const submitDate = new Date();
+
+    cardCollection.addCard(question, answer, count, submitDate);
+
+    expect(cardCollection.items.length).toBe(1);
+    expect(cardCollection.items[0].question).toBe(question);
+    expect(cardCollection.items[0].answer).toBe(answer);
+    expect(cardCollection.items[0].stackCount).toBe(count);
+    expect(cardCollection.items[0].submitDate).toStrictEqual(submitDate);
+  });
+
+  it('should delete a card from the collection', () => {
+    const question = 'What is the capital of France?';
+    const answer = 'Paris';
+    const count = 0;
+    const submitDate = new Date();
+    const cardId = 'card-123';
+
+    cardCollection.addCard(question, answer, count, submitDate, cardId);
+
+    cardCollection.deleteCard(cardId);
+
+    expect(cardCollection.items.length).toBe(0);
+  });
+
+  it('should edit a card in the collection', () => {
+    const question = 'What is the capital of France?';
+    const answer = 'Paris';
+    const count = 0;
+    const submitDate = new Date();
+    const newQuestion = 'What is the capital of Germany?';
+    const newAnswer = 'Berlin';
+    const cardId = 'card-123';
+
+    cardCollection.addCard(question, answer, count, submitDate, cardId);
+
+    cardCollection.editCard(cardId, newQuestion, newAnswer);
+
+    expect(cardCollection.items[0].question).toBe(newQuestion);
+    expect(cardCollection.items[0].answer).toBe(newAnswer);
+  });
+
+  it('should update stackCount when checking answer', () => {
+    const question = 'What is the capital of France?';
+    const answer = 'Paris';
+    const count = 0;
+    const submitDate = new Date();
+    const cardId = 'card-123';
+
+    cardCollection.addCard(question, answer, count, submitDate, cardId);
+
+    // Correct answer
+    expect(cardCollection.checkAnswer(cardId, 'paris')).toBe(true);
+    expect(cardCollection.items[0].stackCount).toBe(1);
+
+    // Incorrect answer
+    expect(cardCollection.checkAnswer(cardId, 'berlin')).toBe(false);
+    expect(cardCollection.items[0].stackCount).toBe(0);
+  });
+});

src/models/Cards/index.ts

@@ -0,0 +1,87 @@
+class CardRecord {
+  public question: string;
+  public answer: string;
+  public stackCount: number;
+  public submitDate: Date;
+  private _id?: string;
+  readonly userId?: string;
+
+  constructor(
+    question: string,
+    answer: string,
+    stackCount = -1,
+    submitDate = new Date(),
+    id?: string,
+    userId?: string
+  ) {
+    this.question = question;
+    this.answer = answer;
+    this.stackCount = stackCount;
+    this.submitDate = submitDate;
+    this._id = id;
+    this.userId = userId;
+  }
+
+  get count() {
+    return this.stackCount;
+  }
+
+  get id() {
+    return this._id;
+  }
+}
+
+export class CardCollection {
+  private cardArr: CardRecord[];
+  constructor(...cards: CardRecord[]) {
+    this.cardArr = [...cards];
+  }
+
+  addCard(
+    question: string,
+    answer: string,
+    count: number,
+    submitDate: Date,
+    id?: string
+  ) {
+    const card = new CardRecord(question, answer, count, submitDate, id);
+    this.cardArr.push(card);
+  }
+
+  deleteCard(id: string) {
+    this.cardArr = this.cardArr.filter((card) => card.id !== id);
+  }
+
+  editCard(id: string, question: string, answer: string) {
+    this.cardArr.map((card) => {
+      if (card.id === id) {
+        if (question) card.question = question;
+        if (answer) card.answer = answer;
+      } else return card;
+    });
+  }
+
+  checkAnswer(id: string, submit: string) {
+    const [card] = this.cardArr.filter((card) => card.id === id);
+    const regex = new RegExp(card.answer, 'i');
+
+    const isCorrect = regex.test(submit);
+    isCorrect ? this.#correct(id) : this.#wrong(id);
+    return isCorrect;
+  }
+
+  #correct(id: string) {
+    const [card] = this.cardArr.filter((card) => card.id === id);
+    if (card.stackCount === -1) card.stackCount = 1;
+    else card.stackCount += 1;
+  }
+
+  #wrong(id: string) {
+    const [card] = this.cardArr.filter((card) => card.id === id);
+    card.stackCount = 0;
+  }
+
+  get items() {
+    return structuredClone(this.cardArr);
+  }
+}

src/models/index.ts

@@ -0,0 +1 @@
+export * from './Cards';