@leetnotion/leetcode-api/lib/index.js

Get user profiles, submissions, and problems on LeetCode.

// src/base-leetcode.ts
import EventEmitter2 from "eventemitter3";

// src/constants.ts
var BASE_URL = "https://leetcode.com";
var BASE_URL_CN = "https://leetcode.cn";
var USER_AGENT = "Mozilla/5.0 LeetCode API";
var PROBLEM_CATEGORIES = [
  "algorithms",
  "database",
  "javascript",
  "shell",
  "concurrency",
  "pandas"
];

// src/fetch.ts
import { useCrossFetch } from "@fetch-impl/cross-fetch";
import { Fetcher } from "@fetch-impl/fetcher";
var fetcher = new Fetcher();
useCrossFetch(fetcher);
var _fetch = (...args) => fetcher.fetch(...args);
var fetch_default = _fetch;

// src/mutex.ts
import EventEmitter from "eventemitter3";
var Mutex = class extends EventEmitter {
  constructor(space = 1) {
    super();
    this.space = space;
    this.used = 0;
    this.releases = [];
  }
  async lock() {
    if (this.used >= this.space) {
      const lock = new Promise((r) => this.releases.push(r));
      this.emit("wait", {
        lock,
        release: this.releases[this.releases.length - 1]
      });
      await lock;
    }
    this.used++;
    this.emit("lock");
    return this.used;
  }
  unlock() {
    if (this.used <= 0) {
      return 0;
    }
    if (this.releases.length > 0) {
      this.releases.shift()?.();
    }
    this.used--;
    this.emit("unlock");
    if (this.used <= 0) {
      this.emit("all-clear");
    }
    return this.used;
  }
  resize(space) {
    this.space = space;
    while (this.used < space && this.releases.length > 0) {
      this.releases.shift()?.();
    }
    return this.space;
  }
  full() {
    return this.used >= this.space;
  }
  waiting() {
    return this.releases.length;
  }
  emit(event, ...args) {
    return super.emit(event, ...args);
  }
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  on(event, listener) {
    return super.on(event, listener);
  }
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  once(event, listener) {
    return super.once(event, listener);
  }
};
var RateLimiter = class extends Mutex {
  constructor({ limit = 20, interval = 1e4, concurrent = 2 } = {}) {
    super(concurrent);
    this.count = 0;
    this.last = 0;
    this.time_mutex = new Mutex(limit);
    this.interval = interval;
    this.time_mutex.on("lock", (...args) => this.emit("time-lock", ...args));
    this.time_mutex.on("unlock", (...args) => this.emit("time-unlock", ...args));
  }
  async lock() {
    if (this.last + this.interval < Date.now()) {
      this.reset();
    } else if (this.time_mutex.full() && !this.timer) {
      this.cleaner();
    }
    await this.time_mutex.lock();
    this.count++;
    return super.lock();
  }
  reset() {
    while (this.count > 0) {
      this.time_mutex.unlock();
      this.count--;
    }
    this.last = Date.now();
    this.emit("timer-reset");
  }
  cleaner() {
    this.timer = setTimeout(
      () => {
        this.reset();
        setTimeout(() => {
          if (this.time_mutex.waiting() > 0) {
            this.cleaner();
          } else {
            this.timer = void 0;
          }
        }, 0);
      },
      this.last + this.interval - Date.now()
    );
  }
  set limit(limit) {
    this.time_mutex.resize(limit);
  }
  emit(event, ...args) {
    return super.emit(event, ...args);
  }
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  on(event, listener) {
    return super.on(event, listener);
  }
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  once(event, listener) {
    return super.once(event, listener);
  }
};

// src/utils.ts
function parse_cookie(cookie) {
  return cookie.split(";").map((x) => {
    const trimmed = x.trim();
    const idx = trimmed.indexOf("=");
    if (idx === -1) return [trimmed, ""];
    return [trimmed.slice(0, idx), trimmed.slice(idx + 1)];
  }).reduce(
    (acc, x) => {
      acc[x[0]] = x[1];
      return acc;
    },
    {}
  );
}

// src/base-leetcode.ts
var BaseLeetCode = class extends EventEmitter2 {
  constructor(credential, createCredential, cache2) {
    super();
    /**
     * Rate limiter
     */
    this.limiter = new RateLimiter();
    let initialize;
    this.initialized = new Promise((resolve) => {
      initialize = () => resolve(true);
    });
    this.cache = cache2;
    if (credential) {
      this.credential = credential;
      setImmediate(() => initialize());
    } else {
      this.credential = createCredential();
      this.credential.init().then(() => initialize());
    }
  }
  /**
   * Use GraphQL to query LeetCode API.
   * @param query
   * @param endpoint The GraphQL endpoint path. Default is `/graphql`.
   * @returns
   */
  async graphql(query, endpoint = "/graphql") {
    await this.initialized;
    const { cacheTime, headers: queryHeaders, ...queryBody } = query;
    if (cacheTime) {
      const cacheKey = JSON.stringify({
        query: queryBody.query,
        variables: queryBody.variables,
        endpoint
      });
      const cached = this.cache.get(cacheKey);
      if (cached) {
        return cached;
      }
    }
    await this.limiter.lock();
    try {
      const BASE = this.baseUrl;
      const res = await fetch_default(`${BASE}${endpoint}`, {
        method: "POST",
        headers: {
          "content-type": "application/json",
          origin: BASE,
          referer: BASE,
          cookie: `csrftoken=${this.credential.csrf || ""}; LEETCODE_SESSION=${this.credential.session || ""};`,
          "x-csrftoken": this.credential.csrf || "",
          "user-agent": USER_AGENT,
          ...queryHeaders
        },
        body: JSON.stringify(queryBody)
      });
      if (!res.ok) {
        throw new Error(`HTTP ${res.status} ${res.statusText}: ${await res.text()}`);
      }
      this.emit("receive-graphql", res);
      if (res.headers.has("set-cookie")) {
        const cookies = parse_cookie(res.headers.get("set-cookie") || "");
        if (cookies["csrftoken"]) {
          this.credential.csrf = cookies["csrftoken"];
          this.emit("update-csrf", this.credential);
        }
      }
      const result = await res.json();
      if (cacheTime) {
        const cacheKey = JSON.stringify({
          query: queryBody.query,
          variables: queryBody.variables,
          endpoint
        });
        this.cache.set(cacheKey, result, cacheTime);
      }
      return result;
    } finally {
      this.limiter.unlock();
    }
  }
  emit(event, ...args) {
    return super.emit(event, ...args);
  }
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  on(event, listener) {
    return super.on(event, listener);
  }
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  once(event, listener) {
    return super.once(event, listener);
  }
};

// src/cache.ts
var Cache = class {
  constructor() {
    this._table = {};
  }
  /**
   * Get an item from the cache.
   * @param key The key of the item.
   * @returns {any} The item, or null if it doesn't exist.
   */
  get(key) {
    const item = this._table[key];
    if (item) {
      if (item.expires > Date.now()) {
        return item.value;
      }
      this.remove(key);
    }
    return null;
  }
  /**
   * Set an item in the cache.
   * @param key The key of the item.
   * @param value The value of the item.
   * @param expires The time in milliseconds until the item expires.
   */
  set(key, value, expires = 6e4) {
    this._table[key] = {
      key,
      value,
      expires: expires > 0 ? Date.now() + expires : 0
    };
  }
  /**
   * Remove an item from the cache.
   * @param key The key of the item.
   */
  remove(key) {
    delete this._table[key];
  }
  /**
   * Clear the cache.
   */
  clear() {
    this._table = {};
  }
  /**
   * Load the cache from a JSON string.
   * @param json A {@link CacheTable}-like JSON string.
   */
  load(json) {
    this._table = JSON.parse(json);
  }
};
var cache = new Cache();
var caches = { default: cache };

// src/base-credential.ts
var BaseCredential = class {
  constructor(data) {
    if (data) {
      this.session = data.session;
      this.csrf = data.csrf;
    }
  }
  /**
   * Init the credential with or without leetcode session cookie.
   * @param session
   * @returns
   */
  async init(session) {
    this.csrf = await this.fetchCsrf();
    if (session) this.session = session;
    return this;
  }
};

// src/credential.ts
var Credential = class extends BaseCredential {
  async fetchCsrf() {
    const cookies_raw = await fetch_default(BASE_URL, {
      headers: {
        "user-agent": USER_AGENT
      }
    }).then((res) => res.headers.get("set-cookie"));
    if (!cookies_raw) {
      return void 0;
    }
    const csrf_token = parse_cookie(cookies_raw).csrftoken;
    return csrf_token;
  }
};

// src/graphql/contest.graphql?raw
var contest_default = "query ($username: String!) {\n	userContestRanking(username: $username) {\n		attendedContestsCount\n		rating\n		globalRanking\n		totalParticipants\n		topPercentage\n		badge {\n			name\n		}\n	}\n	userContestRankingHistory(username: $username) {\n		attended\n		trendDirection\n		problemsSolved\n		totalProblems\n		finishTimeInSeconds\n		rating\n		ranking\n		contest {\n			title\n			startTime\n		}\n	}\n}\n";

// src/graphql/daily.graphql?raw
var daily_default = "query {\n	activeDailyCodingChallengeQuestion {\n		date\n		link\n		question {\n			questionId\n			questionFrontendId\n			boundTopicId\n			title\n			titleSlug\n			content\n			translatedTitle\n			translatedContent\n			isPaidOnly\n			difficulty\n			likes\n			dislikes\n			isLiked\n			similarQuestions\n			exampleTestcases\n			contributors {\n				username\n				profileUrl\n				avatarUrl\n			}\n			topicTags {\n				name\n				slug\n				translatedName\n			}\n			companyTagStats\n			codeSnippets {\n				lang\n				langSlug\n				code\n			}\n			stats\n			hints\n			solution {\n				id\n				canSeeDetail\n				paidOnly\n				hasVideoSolution\n				paidOnlyVideo\n			}\n			status\n			sampleTestCase\n			metaData\n			judgerAvailable\n			judgeType\n			mysqlSchemas\n			enableRunCode\n			enableTestMode\n			enableDebugger\n			envInfo\n			libraryUrl\n			adminUrl\n			challengeQuestion {\n				id\n				date\n				incompleteChallengeCount\n				streakCount\n				type\n			}\n			note\n		}\n		userStatus\n	}\n}\n";

// src/graphql/problem.graphql?raw
var problem_default = "query ($titleSlug: String!) {\n	question(titleSlug: $titleSlug) {\n		questionId\n		questionFrontendId\n		boundTopicId\n		title\n		titleSlug\n		content\n		translatedTitle\n		translatedContent\n		isPaidOnly\n		difficulty\n		likes\n		dislikes\n		isLiked\n		similarQuestions\n		exampleTestcases\n		contributors {\n			username\n			profileUrl\n			avatarUrl\n		}\n		topicTags {\n			name\n			slug\n			translatedName\n		}\n		companyTagStats\n		codeSnippets {\n			lang\n			langSlug\n			code\n		}\n		stats\n		hints\n		solution {\n			id\n			canSeeDetail\n			paidOnly\n			hasVideoSolution\n			paidOnlyVideo\n		}\n		status\n		sampleTestCase\n		metaData\n		judgerAvailable\n		judgeType\n		mysqlSchemas\n		enableRunCode\n		enableTestMode\n		enableDebugger\n		envInfo\n		libraryUrl\n		adminUrl\n		challengeQuestion {\n			id\n			date\n			incompleteChallengeCount\n			streakCount\n			type\n		}\n		note\n	}\n}\n";

// src/graphql/problems.graphql?raw
var problems_default = "query ($categorySlug: String, $limit: Int, $skip: Int, $filters: QuestionListFilterInput) {\n	problemsetQuestionList: questionList(\n		categorySlug: $categorySlug\n		limit: $limit\n		skip: $skip\n		filters: $filters\n	) {\n		total: totalNum\n		questions: data {\n			acRate\n			difficulty\n			freqBar\n			questionFrontendId\n			isFavor\n			isPaidOnly\n			status\n			title\n			titleSlug\n			topicTags {\n				name\n				id\n				slug\n			}\n			hasSolution\n			hasVideoSolution\n		}\n	}\n}\n";

// src/graphql/profile.graphql?raw
var profile_default = "query ($username: String!) {\n	allQuestionsCount {\n		difficulty\n		count\n	}\n	matchedUser(username: $username) {\n		username\n		socialAccounts\n		githubUrl\n		contributions {\n			points\n			questionCount\n			testcaseCount\n		}\n		profile {\n			realName\n			websites\n			countryName\n			skillTags\n			company\n			school\n			starRating\n			aboutMe\n			userAvatar\n			reputation\n			ranking\n		}\n		submissionCalendar\n		submitStats {\n			acSubmissionNum {\n				difficulty\n				count\n				submissions\n			}\n			totalSubmissionNum {\n				difficulty\n				count\n				submissions\n			}\n		}\n		badges {\n			id\n			displayName\n			icon\n			creationDate\n		}\n		upcomingBadges {\n			name\n			icon\n		}\n		activeBadge {\n			id\n		}\n	}\n	recentSubmissionList(username: $username, limit: 20) {\n		title\n		titleSlug\n		timestamp\n		statusDisplay\n		lang\n	}\n}\n";

// src/graphql/recent-submissions.graphql?raw
var recent_submissions_default = "query ($username: String!, $limit: Int!) {\n	recentSubmissionList(username: $username, limit: $limit) {\n		id\n		isPending\n		lang\n		memory\n		runtime\n		statusDisplay\n		time\n		timestamp\n		title\n		titleSlug\n		url\n	}\n}\n";

// src/graphql/whoami.graphql?raw
var whoami_default = "query globalData {\n	userStatus {\n		userId\n		username\n		avatar\n		isSignedIn\n		isMockUser\n		isPremium\n		isAdmin\n		isSuperuser\n		isTranslator\n		activeSessionId\n		checkedInToday\n		permissions\n	}\n}\n";

// src/leetcode.ts
var LeetCode = class extends BaseLeetCode {
  /**
   * If a credential is provided, the LeetCode API will be authenticated. Otherwise, it will be anonymous.
   * @param credential
   * @param cache
   */
  constructor(credential = null, cache2 = new Cache()) {
    super(credential, () => new Credential(), cache2);
    this.baseUrl = BASE_URL;
  }
  /**
   * Get public profile of a user.
   * @param username
   * @returns
   *
   * ```javascript
   * const leetcode = new LeetCode();
   * const profile = await leetcode.user("codewithsathya");
   * ```
   */
  async user(username) {
    await this.initialized;
    const { data } = await this.graphql({
      variables: { username },
      query: profile_default,
      cacheTime: 3e5
      // 5 minutes
    });
    return data;
  }
  /**
   * Get public contest info of a user.
   * @param username
   * @returns
   *
   */
  async user_contest_info(username) {
    await this.initialized;
    const { data } = await this.graphql({
      variables: { username },
      query: contest_default,
      cacheTime: 3e5
      // 5 minutes
    });
    return data;
  }
  /**
   * Get recent submissions of a user. (max: 20 submissions)
   * @param username
   * @param limit
   * @returns
   *
   * ```javascript
   * const leetcode = new LeetCode();
   * const submissions = await leetcode.recent_user_submissions("codewitsathya");
   * ```
   */
  async recent_user_submissions(username, limit = 20) {
    await this.initialized;
    const { data } = await this.graphql({
      variables: { username, limit },
      query: recent_submissions_default,
      cacheTime: 3e4
      // 30 seconds
    });
    return data.recentSubmissionList || [];
  }
  /**
   * Get submissions of the credential user. Need to be authenticated.
   *
   * @returns
   *
   * ```javascript
   * const credential = new Credential();
   * await credential.init("SESSION");
   * const leetcode = new LeetCode(credential);
   * const submissions = await leetcode.submissions({ limit: 100, offset: 0 });
   * ```
   */
  async submissions({
    limit = 20,
    offset = 0
  } = {}) {
    let allSubmissions = [];
    let cursor = offset;
    while (allSubmissions.length < limit) {
      const { submissions_dump: submissions, has_next } = await this.submissionsApi({
        offset: cursor,
        limit: limit <= 20 ? limit : 20
      });
      allSubmissions = [...allSubmissions, ...submissions];
      if (!has_next) {
        break;
      }
      cursor += 20;
    }
    return allSubmissions.slice(0, limit);
  }
  async submissionsApi({ offset = 0, limit = 20 }) {
    await this.initialized;
    if (limit > 20) limit = 20;
    await this.limiter.lock();
    try {
      const res = await fetch_default(`${BASE_URL}/api/submissions/?offset=${offset}&limit=${limit}`, {
        method: "GET",
        headers: {
          "content-type": "application/json",
          origin: BASE_URL,
          referer: BASE_URL,
          cookie: `csrftoken=${this.credential.csrf || ""}; LEETCODE_SESSION=${this.credential.session || ""};`,
          "x-csrftoken": this.credential.csrf || "",
          "user-agent": USER_AGENT
        }
      });
      if (!res.ok) {
        throw new Error(`HTTP ${res.status} ${res.statusText}: ${await res.text()}`);
      }
      if (res.headers.has("set-cookie")) {
        const cookies = parse_cookie(res.headers.get("set-cookie") || "");
        if (cookies["csrftoken"]) {
          this.credential.csrf = cookies["csrftoken"];
          this.emit("update-csrf", this.credential);
        }
      }
      return await res.json();
    } finally {
      this.limiter.unlock();
    }
  }
  /**
   * Get detail of a submission, including the code and percentiles.
   * Need to be authenticated.
   * @param id Submission ID
   * @returns
   * @deprecated
   *
   */
  async submission(id) {
    await this.initialized;
    await this.limiter.lock();
    try {
      const res = await fetch_default(`${BASE_URL}/submissions/detail/${id}/`, {
        headers: {
          origin: BASE_URL,
          referer: BASE_URL,
          cookie: `csrftoken=${this.credential.csrf || ""}; LEETCODE_SESSION=${this.credential.session || ""};`,
          "user-agent": USER_AGENT
        }
      });
      const raw = await res.text();
      const data = raw.match(/var pageData = ({[^]+?});/)?.[1];
      if (!data) {
        throw new Error("Failed to parse submission page data");
      }
      const jsonStr = data.replace(/'/g, '"').replace(/(\w+)\s*:/g, '"$1":').replace(/,\s*}/g, "}").replace(/,\s*]/g, "]");
      const json = JSON.parse(jsonStr);
      const result = {
        id: parseInt(json.submissionId),
        problem_id: parseInt(json.questionId),
        runtime: parseInt(json.runtime),
        runtime_distribution: json.runtimeDistributionFormatted ? JSON.parse(json.runtimeDistributionFormatted).distribution.map(
          (item) => [+item[0], item[1]]
        ) : [],
        runtime_percentile: 0,
        memory: parseInt(json.memory),
        memory_distribution: json.memoryDistributionFormatted ? JSON.parse(json.memoryDistributionFormatted).distribution.map(
          (item) => [+item[0], item[1]]
        ) : [],
        memory_percentile: 0,
        code: json.submissionCode,
        details: json.submissionData
      };
      result.runtime_percentile = result.runtime_distribution.reduce(
        (acc, [usage, p]) => acc + (usage >= result.runtime ? p : 0),
        0
      );
      result.memory_percentile = result.memory_distribution.reduce(
        (acc, [usage, p]) => acc + (usage >= result.memory / 1e3 ? p : 0),
        0
      );
      return result;
    } finally {
      this.limiter.unlock();
    }
  }
  /**
   * Get a list of problems by tags and difficulty.
   * @param option
   * @param option.category
   * @param option.offset
   * @param option.limit
   * @param option.filters
   * @returns
   */
  async problems({
    category = "",
    offset = 0,
    limit = 100,
    filters = {}
  } = {}) {
    await this.initialized;
    const variables = { categorySlug: category, skip: offset, limit, filters };
    const { data } = await this.graphql({
      variables,
      query: problems_default,
      cacheTime: 6e5
      // 10 minutes
    });
    return data.problemsetQuestionList;
  }
  /**
   * Get information of a problem by its slug.
   * @param slug
   * @returns
   */
  async problem(slug) {
    await this.initialized;
    const { data } = await this.graphql({
      variables: { titleSlug: slug.toLowerCase().replace(/\s/g, "-") },
      query: problem_default,
      cacheTime: 6e5
      // 10 minutes
    });
    return data.question;
  }
  /**
   * Get daily challenge.
   * @returns
   *
   * @example
   * ```javascript
   * const leetcode = new LeetCode();
   * const daily = await leetcode.daily();
   * ```
   */
  async daily() {
    await this.initialized;
    const { data } = await this.graphql({
      query: daily_default,
      cacheTime: 0
    });
    return data.activeDailyCodingChallengeQuestion;
  }
  /**
   * Check the information of the credential owner.
   * @returns
   */
  async whoami() {
    await this.initialized;
    const { data } = await this.graphql({
      operationName: "globalData",
      variables: {},
      query: whoami_default
    });
    return data.userStatus;
  }
};
var leetcode_default = LeetCode;

// src/credential-cn.ts
var CredentialCN = class extends BaseCredential {
  async fetchCsrf() {
    const res = await fetch_default(`${BASE_URL_CN}/graphql/`, {
      method: "POST",
      headers: {
        "content-type": "application/json",
        "user-agent": USER_AGENT
      },
      body: JSON.stringify({
        operationName: "nojGlobalData",
        variables: {},
        query: "query nojGlobalData {\n  siteRegion\n  chinaHost\n  websocketUrl\n}\n"
      })
    });
    const cookies_raw = res.headers.get("set-cookie");
    if (!cookies_raw) {
      return void 0;
    }
    const csrf_token = parse_cookie(cookies_raw).csrftoken;
    return csrf_token;
  }
};

// src/leetcode-cn.ts
var LeetCodeCN = class extends BaseLeetCode {
  /**
   * If a credential is provided, the LeetCodeCN API will be authenticated. Otherwise, it will be anonymous.
   * @param credential
   * @param cache
   */
  constructor(credential = null, cache2 = new Cache()) {
    super(credential, () => new CredentialCN(), cache2);
    this.baseUrl = BASE_URL_CN;
  }
  /**
   * Get public profile of a user.
   * @param username
   * @returns
   *
   * ```javascript
   * const leetcode = new LeetCodeCN();
   * const profile = await leetcode.user("codewithsathya");
   * ```
   */
  async user(username) {
    await this.initialized;
    const { data } = await this.graphql({
      operationName: "getUserProfile",
      variables: { username },
      cacheTime: 3e5,
      // 5 minutes
      query: `
            query getUserProfile($username: String!) {
                userProfileUserQuestionProgress(userSlug: $username) {
                    numAcceptedQuestions { difficulty count }
                    numFailedQuestions { difficulty count }
                    numUntouchedQuestions { difficulty count }
                }
                userProfilePublicProfile(userSlug: $username) {
                    username haveFollowed siteRanking
                    profile {
                        userSlug realName aboutMe userAvatar location gender websites skillTags contestCount asciiCode
                        medals { name year month category }
                        ranking {
                            currentLocalRanking currentGlobalRanking currentRating totalLocalUsers totalGlobalUsers
                        }
                        socialAccounts { provider profileUrl }
                    }
                }
            }
            `
    });
    return data;
  }
  /**
   * Use GraphQL to query LeetCodeCN API.
   * @param query
   * @param endpoint Maybe you want to use `/graphql/noj-go/` instead of `/graphql/`.
   * @returns
   */
  async graphql(...args) {
    if (args.length < 2 || args[1] === void 0) {
      args[1] = "/graphql/";
    }
    return super.graphql(...args);
  }
};
var leetcode_cn_default = LeetCodeCN;

// src/graphql/checkin.graphql?raw
var checkin_default = "mutation checkin {\n	checkin {\n		checkedIn\n		ok\n		error\n		__typename\n	}\n}\n";

// src/graphql/collect-easter-egg.graphql?raw
var collect_easter_egg_default = "mutation collectContestEasterEgg {\n	collectContestEasterEgg {\n		ok\n	}\n}\n";

// src/graphql/company-tags.graphql?raw
var company_tags_default = "query questionCompanyTags {\n	companyTags {\n		id\n		imgUrl\n		name\n		slug\n		questionCount\n		questionIds\n		frequencies\n	}\n}\n";

// src/graphql/custom-problem.graphql?raw
var custom_problem_default = "query problemsetQuestionList(\n	$categorySlug: String\n	$limit: Int\n	$skip: Int\n	$filters: QuestionListFilterInput\n) {\n	problemsetQuestionList: questionList(\n		categorySlug: $categorySlug\n		limit: $limit\n		skip: $skip\n		filters: $filters\n	) {\n		total: totalNum\n		questions: data {\n			title\n			difficulty\n			topicTags {\n				name\n			}\n			companyTagStats\n			frequency\n			similarQuestions\n			questionFrontendId\n			isPaidOnly\n			solution {\n				url\n				paidOnly\n				hasVideoSolution\n			}\n			questionId\n			likes\n			dislikes\n			stats\n			titleSlug\n		}\n	}\n}\n";

// src/graphql/is-easter-egg-collected.graphql?raw
var is_easter_egg_collected_default = "query easterEgg {\n	isEasterEggCollected\n}\n";

// src/graphql/lists.graphql?raw
var lists_default = "query myFavoriteList {\n	myCreatedFavoriteList {\n		favorites {\n			name\n			slug\n		}\n		hasMore\n		totalLength\n	}\n}\n";

// src/graphql/minimal-company-tags.graphql?raw
var minimal_company_tags_default = "query questionCompanyTags {\n	companyTags {\n		name\n		questions {\n			questionFrontendId\n		}\n	}\n}\n";

// src/graphql/no-of-problems.graphql?raw
var no_of_problems_default = "query problemsetQuestionList($categorySlug: String, $filters: QuestionListFilterInput) {\n	problemsetQuestionList: questionList(categorySlug: $categorySlug, filters: $filters) {\n		total: totalNum\n	}\n}\n";

// src/graphql/past-contests.graphql?raw
var past_contests_default = "query contestV2HistoryContests($skip: Int!, $limit: Int!) {\n	contestV2HistoryContests(skip: $skip, limit: $limit) {\n		totalNum\n		contests {\n			titleSlug\n			title\n			titleCn\n			startTime\n			duration\n			cardImg\n			cardImgApp\n			companyWatermark\n			solved\n			totalQuestions\n		}\n	}\n}\n";

// src/graphql/question-detail.graphql?raw
var question_detail_default = "query questionDetail($titleSlug: String!) {\n	languageList {\n		id\n		name\n	}\n	submittableLanguageList {\n		id\n		name\n		verboseName\n	}\n	statusList {\n		id\n		name\n	}\n	questionDiscussionTopic(questionSlug: $titleSlug) {\n		id\n		commentCount\n		topLevelCommentCount\n	}\n	ugcArticleOfficialSolutionArticle(questionSlug: $titleSlug) {\n		uuid\n		chargeType\n		canSee\n		hasVideoArticle\n	}\n	question(titleSlug: $titleSlug) {\n		title\n		titleSlug\n		questionId\n		questionFrontendId\n		questionTitle\n		translatedTitle\n		content\n		translatedContent\n		categoryTitle\n		difficulty\n		stats\n		companyTagStatsV2\n		topicTags {\n			name\n			slug\n			translatedName\n		}\n		positionLevelTags {\n			name\n			nameTranslated\n			slug\n		}\n		similarQuestionList {\n			difficulty\n			titleSlug\n			title\n			translatedTitle\n			isPaidOnly\n		}\n		mysqlSchemas\n		dataSchemas\n		frontendPreviews\n		likes\n		dislikes\n		isPaidOnly\n		status\n		canSeeQuestion\n		enableTestMode\n		metaData\n		enableRunCode\n		enableSubmit\n		enableDebugger\n		envInfo\n		isLiked\n		nextChallenges {\n			difficulty\n			title\n			titleSlug\n			questionFrontendId\n		}\n		libraryUrl\n		adminUrl\n		hints\n		codeSnippets {\n			code\n			lang\n			langSlug\n		}\n		exampleTestcaseList\n		hasFrontendPreview\n		featuredContests {\n			titleSlug\n			title\n		}\n	}\n}\n";

// src/graphql/questions-of-list.graphql?raw
var questions_of_list_default = "query favoriteQuestionList($favoriteSlug: String!, $filter: FavoriteQuestionFilterInput) {\n	favoriteQuestionList(favoriteSlug: $favoriteSlug, filter: $filter) {\n		questions {\n			questionFrontendId\n			status\n			title\n			titleSlug\n			translatedTitle\n			isInMyFavorites\n			frequency\n			topicTags {\n				name\n				slug\n			}\n		}\n		totalLength\n		hasMore\n	}\n}\n";

// src/graphql/topic-tags.graphql?raw
var topic_tags_default = "query problemsetQuestionList(\n	$categorySlug: String\n	$limit: Int\n	$skip: Int\n	$filters: QuestionListFilterInput\n) {\n	problemsetQuestionList: questionList(\n		categorySlug: $categorySlug\n		limit: $limit\n		skip: $skip\n		filters: $filters\n	) {\n		total: totalNum\n		questions: data {\n			questionFrontendId\n			topicTags {\n				name\n			}\n		}\n	}\n}\n";

// src/problem-properties.ts
var problemProperties = [
  {
    title: "Allow discussion",
    property: "allowDiscuss",
    graphql: "allowDiscuss",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Article",
    property: "article",
    graphql: "article",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: true,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Category title",
    property: "categoryTitle",
    graphql: "categoryTitle",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Code definition",
    property: "codeDefinition",
    graphql: "codeDefinition",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: true,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Code snippets",
    property: "codeSnippets",
    graphql: `codeSnippets {
      code
      lang
      langSlug
    }`,
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: true,
    problemsPerRequest: 200
  },
  {
    title: "Company tag stats",
    property: "companyTagStats",
    graphql: "companyTagStats",
    enable: true,
    private: true,
    isPremium: true,
    needParsing: true,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Content",
    property: "content",
    graphql: "content",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: true,
    problemsPerRequest: 500
  },
  {
    title: "Difficulty",
    property: "difficulty",
    graphql: "difficulty",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Dislikes",
    property: "dislikes",
    graphql: "dislikes",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Enable run code",
    property: "enableRunCode",
    graphql: "enableRunCode",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Enable submit",
    property: "enableSubmit",
    graphql: "enableSubmit",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Enable test mode",
    property: "enableTestMode",
    graphql: "enableTestMode",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Frequency",
    property: "frequency",
    graphql: "frequency",
    enable: true,
    private: true,
    isPremium: true,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Hints",
    property: "hints",
    graphql: "hints",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Info verified",
    property: "infoVerified",
    graphql: "infoVerified",
    enable: false,
    private: true,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Interpret url",
    property: "interpretUrl",
    graphql: "interpretUrl",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Is liked",
    property: "isLiked",
    graphql: "isLiked",
    enable: false,
    private: true,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Is paid only",
    property: "isPaidOnly",
    graphql: "isPaidOnly",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Judge type",
    property: "judgeType",
    graphql: "judgeType",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Judger available",
    property: "judgerAvailable",
    graphql: "judgerAvailable",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Lang to valid playground",
    property: "langToValidPlayground",
    graphql: "langToValidPlayground",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: true,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Library URL",
    property: "libraryUrl",
    graphql: "libraryUrl",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Likes",
    property: "likes",
    graphql: "likes",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Metadata",
    property: "metaData",
    graphql: "metaData",
    enable: false,
    private: false,
    isPremium: false,
    // This can also be parsed.
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Mysql schemas",
    property: "mysqlSchemas",
    graphql: "mysqlSchemas",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Next challenge pairs",
    property: "nextChallengePairs",
    graphql: "nextChallengePairs",
    enable: false,
    private: true,
    isPremium: false,
    needParsing: true,
    needRequestChunking: true,
    problemsPerRequest: 500
  },
  {
    title: "Note",
    property: "note",
    graphql: "note",
    enable: false,
    private: true,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Question detail URL",
    property: "questionDetailUrl",
    graphql: "questionDetailUrl",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Question frontend ID",
    property: "questionFrontendId",
    graphql: "questionFrontendId",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Question ID",
    property: "questionId",
    graphql: "questionId",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Question title",
    property: "questionTitle",
    graphql: "questionTitle",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Question title slug",
    property: "questionTitleSlug",
    graphql: "questionTitleSlug",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Question type",
    property: "questionType",
    graphql: "questionType",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Sample testcase",
    property: "sampleTestCase",
    graphql: "sampleTestCase",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: true,
    problemsPerRequest: 500
  },
  {
    title: "Session ID",
    property: "sessionId",
    graphql: "sessionId",
    enable: false,
    private: true,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Similar questions",
    property: "similarQuestions",
    graphql: "similarQuestions",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: true,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Solution",
    property: "solution",
    graphql: `solution {
        canSeeDetail
        content
        contentTypeId
        id
        rating {
          average
          count
          id
          userRating {
            id
            score
          }
        }
        title
        url
        paidOnly
        hasVideoSolution
        paidOnlyVideo
      }`,
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: true,
    problemsPerRequest: 100
  },
  {
    title: "Stats",
    property: "stats",
    graphql: "stats",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: true,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Status",
    property: "status",
    graphql: "status",
    enable: false,
    private: true,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Submit URL",
    property: "submitUrl",
    graphql: "submitUrl",
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Title",
    property: "title",
    graphql: "title",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Title slug",
    property: "titleSlug",
    graphql: "titleSlug",
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Topic tags",
    property: "topicTags",
    graphql: `topicTags {
        name
        slug
        translatedName
      }`,
    enable: true,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Translated content",
    property: `translatedContent`,
    graphql: `translatedContent`,
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  },
  {
    title: "Translated title",
    property: "translatedTitle",
    graphql: `translatedTitle`,
    enable: false,
    private: false,
    isPremium: false,
    needParsing: false,
    needRequestChunking: false,
    problemsPerRequest: 1e5
  }
];
var problem_properties_default = problemProperties;

// src/leetcode-advanced.ts
var LeetCodeAdvanced = class extends LeetCode {
  constructor(credential = null, cache2 = cache) {
    super(credential, cache2);
    this.problemProperties = problem_properties_default;
    this.uniquePropertyOfProblem = "questionFrontendId";
  }
  setUniquePropertyOfProblem(property) {
    this.uniquePropertyOfProblem = property;
  }
  setCustomProblemProperties(problemProperties2) {
    this.problemProperties = problemProperties2;
  }
  /**
   * Checks if easter egg is already collected.
   * Need to be authenticated.
   * @returns boolean
   */
  async isEasterEggCollected() {
    await this.initialized;
    const { data } = await this.graphql({
      query: is_easter_egg_collected_default
    });
    return data.isEasterEggCollected;
  }
  /**
   * Collects easter egg if available.
   * Need to be authenticated.
   */
  async collectEasterEgg() {
    await this.initialized;
    const easterEggCollected = await this.isEasterEggCollected();
    if (easterEggCollected) {
      return false;
    }
    await this.graphql({
      operationName: "collectContestEasterEgg",
      variables: {},
      query: collect_easter_egg_default
    });
    return true;
  }
  /**
   * Get all topic tags for each question with question frontend id as key
   * @returns
   */
  async topicTags({
    limit = 1e4,
    problemsPerRequest = 100,
    skip = 0
  } = {}) {
    await this.initialized;
    const questionIdToTopicTags = {};
    const noOfProblems = Math.min(skip + limit, await this.noOfProblems());
    for (let offset = skip; offset < noOfProblems; offset += problemsPerRequest) {
      const { data } = await this.graphql({
        query: topic_tags_default,
        variables: {
          categorySlug: "",
          filters: {},
          skip: offset,
          limit: problemsPerRequest
        }
      });
      const problems = data.problemsetQuestionList.questions;
      for (const problem of problems) {
        questionIdToTopicTags[problem.questionFrontendId] = problem.topicTags.map(
          ({ name }) => name
        );
      }
    }
    return questionIdToTopicTags;
  }
  /**
   * Get all company tags with their details.
   * For company wise question details, need to be authenticated and should be premium user.
   * @returns
   */
  async companyTags() {
    await this.initialized;
    const { data } = await this.graphql({
      query: company_tags_default
    });
    return data.companyTags;
  }
  /**
   * Get question frontend id to company tags mapping.
   * Need to be authenticated and should be premium user
   * @returns
   */
  async getQuestionIdCompanyTagsMapping() {
    await this.initialized;
    const { data } = await this.graphql({
      query: minimal_company_tags_default
    });
    const companyTags = data.companyTags;
    if (companyTags === null) {
      throw new Error(`You should have leetcode premium to access company tags information`);
    }
    const questionIdToCompanyTags = {};
    for (const companyTag of companyTags) {
      for (const { questionFrontendId: id } of companyTag.questions) {
        if (!questionIdToCompanyTags[id]) {
          questionIdToCompanyTags[id] = [];
        }
        questionIdToCompanyTags[id].push(companyTag.name);
      }
    }
    return questionIdToCompanyTags;
  }
  /**
   * Checkin to collect a coin
   * Need to be authenticated
   */
  async checkIn() {
    await this.initialized;
    const { data } = await this.graphql({
      query: checkin_default
    });
    return data.checkin.checkedIn;
  }
  /**
   * Get recent submission of current user.
   * Need to be authenticated
   * @returns Submission
   * @returns null if there are no recent submissions
   */
  async recentSubmission() {
    const submissions = await this.submissions({ limit: 1, offset: 0 });
    if (submissions.length == 0) return null;
    return submissions[0];
  }
  /**
   * Get recent submission of a user by username
   * Need to be authenticated
   * @param username
   * @returns Submission
   * @returns null if there are no recent submissions
   */
  async recentSubmissionOfUser(username) {
    const recentSubmissions = await this.recent_user_submissions(username, 1);
    if (recentSubmissions.length == 0) return null;
    return recentSubmissions[0];
  }
  /**
   * Get no of total problems in leetcode right now.
   * @returns number
   */
  async noOfProblems() {
    await this.initialized;
    const { data } = await this.graphql({
      query: no_of_problems_default,
      variables: {
        categorySlug: "",
        filters: {}
      }
    });
    return data.problemsetQuestionList.total;
  }
  /**
   * Get leetcode lists of the user
   * Need to be authenticated
   * @returns array of leetcode lists
   */
  async getLists() {
    await this.initialized;
    const { data } = await this.graphql({
      query: lists_default
    });
    return data.myCreatedFavoriteList.favorites;
  }
  /**
   * Get all questions of a leetcode list
   * Need to be authenticated
   * @param slug slug id of the leetcode list
   * @returns array of questions
   */
  async getQuestionsOfList(slug) {
    await this.initialized;
    const { data } = await this.graphql({
      query: questions_of_list_default,
      variables: {
        favoriteSlug: slug
      }
    });
    return data.favoriteQuestionList.questions;
  }
  /**
   * Get problem types for all questions.
   * @returns Record<string, string> - A mapping of question frontend IDs to their problem type.
   */
  async getProblemTypes() {
    const problemTypes = {};
    for (const category of PROBLEM_CATEGORIES) {
      const pairs = await this.fetchCategoryQuestions(category);
      for (const pair of pairs) {
        const id = String(pair.stat.frontend_question_id);
        problemTypes[id] = category;
      }
    }
    return problemTypes;
  }
  /**
   * Get leetcode problems with optional parameters.
   * @param option
   * @param option.limit - Total number of problems to fetch. Default is 10000.
   * @param option.problemsPerRequest - Number of problems to fetch per request. Default is 100.
   * @param option.skip - Number of problems to skip from the start. Default is 0.
   * @param option.callbackFn - Optional callback function that will be called after each request with the currently fetched problems.
   * @returns Array of LeetcodeProblem
   */
  async getLeetcodeProblems({
    limit = 1e4,
    problemsPerRequest = 100,
    skip = 0,
    callbackFn = null
  } = {}) {
    await this.initialized;
    const noOfProblems = Math.min(skip + limit, await this.noOfProblems());
    let problems = [];
    for (let offset = skip; offset < noOfProblems; offset += problemsPerRequest) {
      const { data } = await this.graphql({
        query: custom_problem_default,
        variables: {
          categorySlug: "",
          filters: {},
          skip: offset,
          limit: problemsPerRequest
        }
      });
      const consolidatedProblems = data.problemsetQuestionList.questions;
      problems = [...problems, ...consolidatedProblems];
      if (callbackFn) {
        await callbackFn(problems);
      }
    }
    return this.parseProblems(problems);
  }
  async parseProblems(problems) {
    const parsingDetails = {};
    for (const fieldDetails of problem_properties_default) {
      parsingDetails[fieldDetails.property] = fieldDetails.needParsing;
    }
    for (const problem of problems) {
      for (const field of Object.keys(problem)) {
        if (parsingDetails[field]) {
          problem[field] = JSON.parse(
            problem[field]
          );
        }
      }
    }
    return problems;
  }
  /**
   * Get list of detailed problems by tags and difficulty.
   * This will collect details according to the problemProperties configuration and this is slow.
   * @param option
   * @param option.category
   * @param option.offset
   * @param option.limit
   * @param option.filters
   * @returns DetailedProblem[]
   */
  async detailedProblems({
    category = "",
    offset = 0,
    limit = 1e5,
    filters = {}
  } = {}) {
    await this.initialized;
    let problems = [];
    for (const problemProperty of this.problemProperties.filter(({ enable }) => enable)) {
      const consolidatedProblems = await this.problemsOfProperty(problemProperty, {
        category,
        offset,
        limit,
        filters
      });
      if (problems.length === 0) {
        problems = consolidatedProblems;
      } else {
        problems = this.combineProperties(problems, consolidatedProblems);
      }
    }
    return problems;
  }
  /**
   * Get problems with a particular property and requests are sent according to the configuration.
   * @param problemProperty
   * @param QueryParams
   * @returns DetailedProblem[]
   */
  async problemsOfProperty(problemProperty, { category = "", offset = 0, limit = 1e5, filters = {} } = {}) {
    if (!problemProperty.enable) {
      throw new Error(`${problemProperty.title} is not enabled.`);
    }
    await this.initialized;
    const variables = { categorySlug: category, skip: offset, limit, filters };
    let problems = [];
    if (!problemProperty.needRequestChunking) {
      const chunkSize = 100;
      const noOfProblems = Math.min(offset + limit, await this.noOfProblems());
      variables.limit = Math.min(chunkSize, limit);
      while (variables.skip < noOfProblems) {
        const { data } = await this.graphql({
          variables,
          query: this.getProblemsQuery({ requiredProperty: problemProperty.graphql })
        });
        problems = [...problems, ...data.problemsetQuestionList.questions];
        variables.skip += variables.limit;
        variables.limit = Math.min(chunkSize, noOfProblems - variables.skip);
      }
    } else {
      variables.limit = problemProperty.problemsPerRequest;
      const noOfProblems = await this.noOfProblems();
      while (variables.skip < noOfProblems) {
        const { data } = await this.graphql({
          variables,
          query: this.getProblemsQuery({ requiredProperty: problemProperty.graphql })
        });
        problems = [...problems, ...data.problemsetQuestionList.questions];
        variables.skip += variables.limit;
      }
    }
    if (problemProperty.needParsing) {
      const property = problemProperty.property;
      problems.forEach((problem) => {
        problem[property] = JSON.parse(problem[property]);
      });
    }
    return problems;
  }
  /**
   * Get title slug question number mapping for all leetcode questions
   * @returns Mapping
   */
  async getTitleSlugQuestionNumberMapping() {
    const mapping = {};
    for (const category of PROBLEM_CATEGORIES) {
      const pairs = a