CGVTicketing.js 8.08 KB
require('chromedriver');
const request = require('request');
const cheerio = require('cheerio');
const puppeteer = require('puppeteer');

const async = require('async');
let express = require('express');
let app = express();
let bodyParser = require('body-parser');
const { timeout } = require('async');

const {Builder,until} = require('selenium-webdriver');  //모듈 불러오기
const webdriver = require('selenium-webdriver');
const chrome = require('selenium-webdriver/chrome');
const { delayed } = require('selenium-webdriver/lib/promise');
const By = webdriver.By;

app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());

const url_movies = "https://www.cgv.co.kr/movies/?lt=1&ft=0"; //끝의 쿼리 0은 개봉 전 영화도 포함하는 것. 예매율 순위 가져오기
const url_theaters = "https://www.cgv.co.kr/theaters"; //영화관 정보 가져오는 링크.
const url_ticketing = "https://www.cgv.co.kr/ticket/";  //상영중인 영화 정보 가져오는 링크.

let cgv_theaters = []; //영화관과 영화관 고유 코드를 담는 배열
let cgv_movies = [];  //예매율 상위 19위까지의 영화 정보(CGVMovieInfo Class의 인스턴스)들을 담는 배열.
let cgv_accessible_movies = []; //선택한 일자, 영화관에서 예매할 수 있는 영화 이름과 영화 고유 코드를 담는 배열.

class CGVMovieInfo {
    constructor(title, rank, score, GoldenEgg, movieCode){
        this.title = title;
        this.rank = rank;
        this.score = score;
        this.GoldenEgg = GoldenEgg;
        this.movieCode = movieCode;
    }

    getTitle() { return this.title; }
    setTitle(title) { this.title = title; }
    getRank() { return this.rank; }
    setRank(rank) { this.rank = rank; }
    getScore() { return this.score; }
    setScore(score) { this.score = score; }
    getGoldenEgg() { return this.GoldenEgg; }
    setGoldenEgg(GoldenEgg) { this.GoldenEgg = GoldenEgg; }
    getMovieCode() { return this.movieCode; }
    setMovieCode(movieCode) { this.movieCode = movieCode; }

    printMovieInfo(){
        return {
            'rank': this.rank + " : " + this.title,
            'score': "예매율 : " + this.score + "%",
            'goldenEgg': "골든에그지수 : " + this.GoldenEgg,
            'movieCode': "영화코드 : " + this.movieCode
        };
    }
    
}

async.waterfall([
    async () => {
        //크롬 설정을 담은 객체 생성
        const driver_theaters = new webdriver.Builder().forBrowser('chrome').setChromeOptions(new chrome.Options().headless()).build();
        driver_theaters.get(url_theaters);
        //영화관 및 영화관에 대응되는 영화관별 고유 코드 가져오기.
        let selector = '#contents > div.sect-common > div > div.sect-city > ul > li:nth-child({}) > div > ul > li > a';
        let area = [];
        for(let i = 1; i <= 9; i++){
            let region = await driver_theaters.wait(until.elementsLocated(By.css(selector.replace("{}", i))));
            area.push(region);
        }
        for (const theaters_by_area of area) {
            let theaters_info_by_area = [];
            for (const theater of theaters_by_area){
                let theater_info = {
                    "theater_name" : await theater.getAttribute('title'),
                    "theater_code" : await theater.getAttribute('href')
                };
                theater_info.theater_name = theater_info.theater_name.replace("CGV", "")
                theater_info.theater_code = theater_info.theater_code.replace(/(.+(?<=theaterCode=))|(.+(?<=theatercode=))/, "").substring(0,4);
                theaters_info_by_area.push(theater_info);
            }
            cgv_theaters.push(theaters_info_by_area);
        }
        driver_theaters.close();
    },
    async () => {
        const driver_movies = new webdriver.Builder().forBrowser('chrome').setChromeOptions(new chrome.Options().headless()).build();
        driver_movies.get(url_movies);
        //예매율 Top19까지의 영화의 정보를 가져옴.

        const rank = await driver_movies.wait(until.elementsLocated(By.css("strong.rank")));
        const title = await driver_movies.wait(until.elementsLocated(By.css("strong.title")));
        const score = await driver_movies.wait(until.elementsLocated(By.css("strong.percent")));
        const GoldenEgg = await driver_movies.wait(until.elementsLocated(By.css("span.percent")));
        const link = await driver_movies.wait(until.elementsLocated(By.css("a.link-reservation")));

        //영화 제목, 순위, 예매율, 영화 코드, 골든에그 지수를 가져와 CGVMovieInfo 객체 생성자에 파라미터로 넘겨주고, 인스턴스를 받아옴.
        for (let i = 0; i < rank.length; i++) {
            const newTitle = await title[i].getText();
            const newRank = await rank[i].getText();
            const newScore = await score[i].getText();
            const newCode = await link[i].getAttribute("href");
            const newMovie = new CGVMovieInfo(newTitle, parseInt(newRank.replace("No.", "")), newScore.replace("예매율", "").replace("%", ""), await GoldenEgg[i].getText(), newCode.replace(/[^0-9]/g, "").substring(0,8));
            cgv_movies.push(newMovie);
        }
        driver_movies.close();
    }
])

app.get('/cgv_theaters', (req, res) => {
    res.send(cgv_theaters[0]);
});

app.post('/ticketing', async (req, res, next) => {
    //영화관 이름과 날짜를 가져옴.
    const theaterName = req.body.theaterName;
    const date = req.body.date;
    const LocateQuery = "?PLAY_YMD={}".replace("{}", date);

    //입력된 영화관에 맞는 지역 코드와 영화관 고유코드 찾기
    let regionCode = 0, theaterCode = "";
    for(let i = 0; i < 9; i++){
        for(const elem of cgv_theaters[i]){
            if(elem.theater_name == theaterName){
                regionCode = i;
                theaterCode = elem.theater_code;
                break;
            }
        }
    }

    //예매 가능한 영화 리스트를 얻기 위해 빠른 예매 사이트로 이동.
    const driver_ticketing = new webdriver.Builder().forBrowser('chrome').setChromeOptions(new chrome.Options()).build();
    driver_ticketing.get(url_ticketing + LocateQuery);
    driver_ticketing.switchTo().frame("ticket_iframe"); //Frame 전환

    //지역 코드에 맞게 list element click
    const selected_areas_list = await driver_ticketing.wait(until.elementsLocated(By.css("#theater_area_list > ul > li > a > span.name")));
    await selected_areas_list[regionCode].click();
    driver_ticketing.sleep(1000);

    //선택한 지역에 대응되는 영화관 정보 가져오기
    const selected_theaters_list = await driver_ticketing.wait(until.elementsLocated(By.css("#theater_area_list > ul > li.selected > div > ul > li")));
    
    //프로그램 내부에서 가지고 있는 영화관코드와 웹에서 받아온 영화관코드가 일치하는 경우, selected_theaters_list element 클릭
    for (const theater_element of selected_theaters_list){
        if(await theater_element.getAttribute("theater_cd") == theaterCode){
            await theater_element.click();
            driver_ticketing.sleep(1000);
            break;
        }
    }

     //선택한 영화관에서, 선택한 일자에 상영하는 영화 목록 들고오기
     const selected_movies_list = await driver_ticketing.wait(until.elementsLocated(By.css("#movie_list > ul > li > a > span.text")));
     const codes_of_selected_movies = await driver_ticketing.wait(until.elementsLocated(By.css("#movie_list > ul > li")));

     //선택불가를 제외한 영화 제목 및 영화 코드 가져오기.
     for(let i = 0; i < selected_movies_list.length; i++){
        const movie_enabled = await codes_of_selected_movies[i].getAttribute("class")
        if(movie_enabled.endsWith("dimmed"))
            break;
        const accessible_movie = {
            "movie_title": await selected_movies_list[i].getText(),
            "movie_code" : await codes_of_selected_movies[i].getAttribute("movie_cd_group")
        }
        cgv_accessible_movies.push(accessible_movie);
     }
     driver_ticketing.close();

     res.send(cgv_accessible_movies);
});

app.listen(23023);