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const
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{ ContestNotLiveError, ValidationError, ProblemNotFoundError,
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ContestNotAttendedError } = require('../error'),
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{ PERM_CREATE_CONTEST, PERM_EDIT_CONTEST } = require('../permission'),
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{ constants } = require('../options'),
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paginate = require('../lib/paginate'),
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contest = require('../model/contest'),
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problem = require('../model/problem'),
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record = require('../model/record'),
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user = require('../model/user'),
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{ Route, Handler } = require('../service/server');
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const ContestHandler = contest.ContestHandlerMixin(Handler);
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class ContestListHandler extends ContestHandler {
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async get({ rule = 0, page = 1 }) {
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this.response.template = 'contest_main.html';
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let tdocs, qs, tpcount;
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if (!rule) {
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tdocs = contest.getMulti().sort({ beginAt: -1 });
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qs = '';
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} else {
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if (!contest.CONTEST_RULES.includes(rule)) throw new ValidationError('rule');
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tdocs = contest.getMulti({ rule }).sort({ beginAt: -1 });
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qs = 'rule={0}'.format(rule);
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}
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[tdocs, tpcount] = await paginate(tdocs, page, constants.CONTEST_PER_PAGE);
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let tids = [];
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for (let tdoc of tdocs) tids.push(tdoc._id);
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let tsdict = await contest.getListStatus(this.user._id, tids);
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this.response.body = {
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page, tpcount, qs, rule, tdocs, tsdict
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};
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}
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}
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class ContestDetailHandler extends ContestHandler {
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async _prepare({ tid }) {
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this.tdoc = await contest.get(tid);
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}
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async get({ page = 1 }) {
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this.response.template = 'contest_detail.html';
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let [tsdoc, pdict] = await Promise.all([
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contest.getStatus(this.tdoc._id, this.user._id),
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problem.getList(this.tdoc.pids)
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]);
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let psdict = {}, rdict = {}, attended;
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if (tsdoc) {
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attended = tsdoc.attend == 1;
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for (let pdetail of tsdoc.journal || [])
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psdict[pdetail.pid] = pdetail;
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if (this.canShowRecord(this.tdoc)) {
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let q = [];
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for (let i in psdict) q.push(psdict[i].rid);
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rdict = await record.getList(q);
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} else
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for (let i in psdict)
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rdict[psdict[i].rid] = { _id: psdict[i].rid };
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} else attended = false;
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let udict = await user.getList([this.tdoc.owner]);
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let path = [
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['contest_main', '/c'],
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[this.tdoc.title, null, true]
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];
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this.response.body = {
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path, tdoc: this.tdoc, tsdoc, attended, udict, pdict, psdict, rdict, page
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};
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}
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async post_attend() {
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if (contest.is_done(this.tdoc)) throw new ContestNotLiveError(this.tdoc._id);
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await contest.attend(this.tdoc._id, this.user._id);
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this.back();
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}
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}
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class ContestScoreboardHandler extends ContestDetailHandler {
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async get({ tid }) {
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let [tdoc, rows, udict] = await this.getScoreboard(tid);
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let path = [
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['contest_main', '/c'],
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[tdoc.title, `/c/${tid}`, true],
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['contest_scoreboard', null]
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];
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this.response.template = 'contest_scoreboard.html';
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this.response.body = { tdoc, rows, path, udict };
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}
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}
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class ContestEditHandler extends ContestDetailHandler {
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async prepare({ tid }) {
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let tdoc = await contest.get(tid);
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if (!tdoc.owner != this.user._id) this.checkPerm(PERM_EDIT_CONTEST);
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}
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async get() {
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this.response.template = 'contest_edit.html';
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let rules = {};
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for (let i in contest.RULES)
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rules[i] = contest.RULES[i].TEXT;
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let duration = (this.tdoc.endAt.getTime() - this.tdoc.beginAt.getTime()) / 3600 / 1000;
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let path = [
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['contest_main', '/c'],
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[this.tdoc.title, `/c/${this.tdoc._id}`, true],
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['contest_edit', null]
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];
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let dt = this.tdoc.beginAt;
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this.response.body = {
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rules, tdoc: this.tdoc, duration, path, pids: this.tdoc.pids.join(','),
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date_text: `${dt.getFullYear()}-${dt.getMonth() + 1}-${dt.getDate()}`,
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time_text: `${dt.getHours()}:${dt.getMinutes()}`,
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page_name: 'contest_edit'
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};
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}
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async post({ beginAtDate, beginAtTime, duration, title, content, rule, pids }) {
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let beginAt, endAt;
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try {
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beginAt = new Date(Date.parse(`${beginAtDate} ${beginAtTime.replace('-', ':')}`));
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} catch (e) {
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throw new ValidationError('beginAtDate', 'beginAtTime');
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}
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endAt = new Date(beginAt + duration * 3600 * 1000);
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if (beginAt >= endAt) throw new ValidationError('duration');
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pids = await this.verifyProblems(pids);
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await contest.edit(this.tdoc._id, title, content, rule, beginAt, endAt, pids);
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if (this.tdoc.beginAt != beginAt || this.tdoc.endAt != endAt
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|| Array.isDiff(this.tdoc.pids, pids) || this.tdoc.rule != rule)
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await contest.recalcStatus(this.tdoc._id);
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if (this.preferJson) this.response.body = { tid: this.tdoc._id };
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else this.response.redirect = `/c/${this.tdoc._id}`;
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}
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}
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class ContestProblemHandler extends ContestDetailHandler {
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async prepare({ tid, pid }) {
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[this.tdoc, this.pdoc] = await Promise.all([contest.get(tid), problem.get(pid, this.user._id)]);
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[this.tsdoc, this.udoc] = await Promise.all([
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contest.getStatus(this.tdoc._id, this.user._id),
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user.getById(this.tdoc.owner)
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]);
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this.attended = this.tsdoc && this.tsdoc.attend == 1;
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this.response.template = 'problem_detail.html';
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if (contest.is_done(this.tdoc)) {
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if (!this.attended) throw new ContestNotAttendedError(this.tdoc._id);
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if (!contest.is_ongoing(this.tdoc)) throw new ContestNotLiveError(this.tdoc._id);
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}
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console.log(this.tdoc.pids, this.pdoc._id);
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if (!this.tdoc.pids.map(s => s.toString()).includes(this.pdoc._id.toString()))
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throw new ProblemNotFoundError(pid, this.tdoc._id);
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}
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async get({ tid }) {
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let path = [
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['contest_main', '/c'],
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[this.tdoc.title, `/c/${tid}`, true],
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[this.pdoc.title, null, true]
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];
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this.response.body = {
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tdoc: this.tdoc, pdoc: this.pdoc, tsdoc: this.tsdoc,
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udoc: this.udoc, attended: this.attended, path
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};
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}
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}
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class ContestProblemSubmitHandler extends ContestProblemHandler {
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async get({ tid, pid }) {
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let rdocs = [];
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if (this.canShowRecord(this.tdoc))
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rdocs = await record.getUserInProblemMulti(this.user._id, this.pdoc._id, true)
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.sort({ _id: -1 }).limit(10).toArray();
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this.response.template = 'problem_submit.html';
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let path = [
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['contest_main', '/c'],
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[this.tdoc.title, `/c/${tid}`, true],
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[this.pdoc.title, `/c/${tid}/p/${pid}`, true],
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['contest_detail_problem_submit', null]
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];
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this.response.body = {
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tdoc: this.tdoc, pdoc: this.pdoc, tsdoc: this.tsdoc,
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udoc: this.udoc, attended: this.attend, path, rdocs
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};
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}
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async post({ tid, lang, code }) {
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await this.limitRate('add_record', 60, 100);
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let rid = await record.add({ pid: this.pdoc._id, uid: this.user._id, lang, code, tid: this.tdoc._id, hidden: true });
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await contest.updateStatus(this.tdoc._id, this.user._id, rid, this.pdoc._id, false, 0);
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if (!this.canShowRecord(this.tdoc)) {
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this.response.body = { tid };
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this.response.redirect = `/c/${tid}`;
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} else {
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this.response.body = { rid };
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this.response.redirect = `/r/${rid}`;
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}
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}
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}
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class ContestCreateHandler extends ContestHandler {
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async prepare() {
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this.checkPerm(PERM_CREATE_CONTEST);
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}
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async get() {
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this.response.template = 'contest_edit.html';
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let rules = {};
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for (let i in contest.RULES)
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rules[i] = contest.RULES[i].TEXT;
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let now = new Date();
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let ts = now.getTime();
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ts = ts - ts % (15 * 60 * 1000) + 15 * 60 * 1000;
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let dt = new Date(ts);
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this.response.body = {
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rules, page_name: 'contest_create',
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date_text: `${dt.getFullYear()}-${dt.getMonth() + 1}-${dt.getDate()}`,
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time_text: `${dt.getHours()}:${dt.getMinutes()}`,
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pids: '1000, 1001'
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};
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}
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async post({ title, content, rule, beginAtDate, beginAtTime, duration, pids }) {
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let beginAt, endAt;
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try {
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beginAt = new Date(Date.parse(`${beginAtDate} ${beginAtTime.replace('-', ':')}`));
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} catch (e) {
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throw new ValidationError('beginAtDate', 'beginAtTime');
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}
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endAt = new Date(beginAt.getTime() + duration * 3600 * 1000);
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if (beginAt >= endAt) throw new ValidationError('duration');
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pids = await this.verifyProblems(pids);
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let tid = await contest.add(title, content, this.user._id, rule, beginAt, endAt, pids);
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this.response.body = { tid };
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this.response.redirect = `/c/${tid}`;
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}
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}
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Route('/c', ContestListHandler);
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Route('/c/:tid', ContestDetailHandler);
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Route('/c/:tid/edit', ContestEditHandler);
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Route('/c/:tid/scoreboard', ContestScoreboardHandler);
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Route('/c/:tid/p/:pid', ContestProblemHandler);
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Route('/c/:tid/p/:pid/submit', ContestProblemSubmitHandler);
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Route('/contest/create', ContestCreateHandler);
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