[feat] 마스터키 예약 동작 구현 (#4)

* [feat] puppeteer 환경 설정

* [feat] 예약 동작 구현

* [feat] 확인 동작 구현

* [fix] 테스트용 데이터 삭제

* [feat] 요청과 응답 구현

app.js

@@ -1,14 +1,38 @@
 import express from "express";
 import http from "http";
 import bodyParser from "body-parser";
+import reserveMasterkey from "./src/masterkey/run.js";
 
 const app = express();
+app.use(express.json({ extended: true }));
 
 app.use(bodyParser.urlencoded({ extended: false }));
 
 const server = http.createServer(app);
 const PORT = 3000;
 
+app.post("/reserve/masterkey", async (req, res) => {
+  const info = req.body;
+  const response = await reserveMasterkey(info);
+
+  res.json({
+    isSucceed: response,
+  });
+});
+
 server.listen(PORT, () => {
   console.log(`Server running on http://localhost:${PORT}`);
 });
+
+/**
+info 객체 예시
+
+{
+    "targetUrl": "https://www.master-key.co.kr/booking/bk_detail?bid=11",
+    "themeTitle": "연애조작단",
+    "targetDate": "2023-11-25",
+    "targetTime": "99:05",
+    "bookerName": "이남곤",
+    "bookerPhoneNumber": "01012345678"
+}
+ */

package.json

@@ -5,6 +5,7 @@
   "main": "index.js",
   "type": "module",
   "scripts": {
+    "start": "node app.js",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "author": "",

src/masterkey/check.js

@@ -0,0 +1,69 @@
+import { createBrowser, createPage } from "../tools/browser.js";
+
+const check = async ({
+  targetUrl,
+  themeTitle,
+  targetDate,
+  targetTime,
+  bookerName,
+  bookerPhoneNumber,
+}) => {
+  const browser = await createBrowser();
+  const page = await createPage(browser);
+
+  try {
+    await Promise.all([page.waitForNavigation(), page.goto(targetUrl)]);
+
+    await Promise.all([
+      page.waitForSelector(".modal-content", { visible: true }),
+      page.waitForSelector("input[name='chk_user_name']"),
+      page.waitForSelector("input[name='chk_user_phone']"),
+      page.click("a#booking_check_btn"),
+    ]);
+
+    await page.type("input[name='chk_user_name']", bookerName);
+    await page.type("input[name='chk_user_phone']", bookerPhoneNumber);
+    await page.click("button#booking_check_ajax");
+
+    await page.waitForSelector("#booking_check_result > table > tbody");
+    const [tbody] = await page.$x("//*[@id='booking_check_result']/table/tbody");
+
+    const trs = await tbody.$x("//tr");
+
+    for (let index = 0; index < trs.length; index += 2) {
+      const fromSite = {};
+      fromSite["date"] = await trs[index].$eval("td:nth-child(2)", (el) => el.textContent.trim());
+      fromSite["themeTitle"] = await trs[index + 1].$eval("td:nth-child(1)", (el) =>
+        el.textContent.trim()
+      );
+      const status = await trs[index + 1].$eval("td:nth-child(2)", (el) => el.textContent.trim());
+
+      const fromUser = { themeTitle, targetDate, targetTime };
+
+      if (isReserved(fromUser, fromSite, status)) {
+        return true;
+      }
+    }
+
+    return false;
+  } catch (error) {
+    console.log(error);
+    return false;
+  } finally {
+    await page.close();
+    await browser.close();
+  }
+};
+
+const isReserved = (fromUser, fromSite, status) => {
+  if (
+    fromUser.themeTitle == fromSite.themeTitle &&
+    `${fromUser.targetDate} ${fromUser.targetTime}` == fromSite.date &&
+    status == "예약됨"
+  ) {
+    return true;
+  }
+  return false;
+};
+
+export default check;

src/masterkey/reserve.js

@@ -0,0 +1,67 @@
+import { createBrowser, createPage } from "../tools/browser.js";
+
+const reserve = async ({
+  targetUrl,
+  themeTitle,
+  targetDate,
+  targetTime,
+  bookerName,
+  bookerPhoneNumber,
+}) => {
+  const browser = await createBrowser();
+  const page = await createPage(browser);
+
+  try {
+    await Promise.all([page.waitForNavigation(), page.goto(targetUrl)]);
+
+    // 날짜 클릭, 해당 날짜 없는 경우 에러 발생
+    await Promise.all([
+      page.waitForSelector("#booking_list", { visible: true }),
+      page.click(`#tab1 > div.box1 > div > div.date-click > div > p[data-dd='${targetDate}']`),
+    ]);
+
+    // 테마 선택, 해당 테마 없는 경우 에러 발생
+    const [box2Inner] = await page.$x(
+      `//div[@class='box2-inner' and descendant::div[@class='title' and contains(., '${themeTitle}')]]`
+    );
+
+    // 시간과 예약 상태 선택
+    const [aTag] = await box2Inner.$x(`//div[@class='right']/p/a[contains(., '${targetTime}')]`);
+
+    // 해당 시간 없는 경우, undefined 반환
+    if (!aTag) {
+      return false;
+    }
+
+    const isAvailable = await aTag.$eval("span", (el) => el.textContent.trim());
+
+    // 이미 예약완료된 테마인 경우
+    if (isAvailable == "예약완료") {
+      return false;
+    }
+
+    await Promise.all([
+      page.waitForSelector(".modal-content", { visible: true }),
+      page.waitForSelector("button#booking_go"),
+      page.waitForSelector("input[name='user_name']"),
+      page.waitForSelector("input[name='user_phone']"),
+      aTag.click(),
+    ]);
+
+    await page.type("input[name='user_name']", bookerName);
+    await page.type("input[name='user_phone']", bookerPhoneNumber);
+
+    // 예약 버튼 클릭
+    await page.click("button#booking_go");
+
+    return true;
+  } catch (error) {
+    console.log(error);
+    return false;
+  } finally {
+    await page.close();
+    await browser.close();
+  }
+};
+
+export default reserve;

src/masterkey/run.js

@@ -0,0 +1,14 @@
+import check from "./check.js";
+import reserve from "./reserve.js";
+
+const run = async (info) => {
+  const reservationResult = await reserve(info);
+
+  if (!reservationResult) {
+    return false;
+  }
+
+  return await check(info);
+};
+
+export default run;