Prvotní nástřel pizza parseru

README.md

@@ -1,46 +1,7 @@
-# Getting Started with Create React App
+# Pizza Day
 
-This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
+Zatím to nemá dokumentaci.
+Klient je v tomto adresáři, server v adresáři /server, obojí lze spustit pomocí:
 
-## Available Scripts
+### `yarn`
-
+### `yarn start`
-In the project directory, you can run:
-
-### `npm start`
-
-Runs the app in the development mode.\
-Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
-
-The page will reload if you make edits.\
-You will also see any lint errors in the console.
-
-### `npm test`
-
-Launches the test runner in the interactive watch mode.\
-See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
-
-### `npm run build`
-
-Builds the app for production to the `build` folder.\
-It correctly bundles React in production mode and optimizes the build for the best performance.
-
-The build is minified and the filenames include the hashes.\
-Your app is ready to be deployed!
-
-See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
-
-### `npm run eject`
-
-**Note: this is a one-way operation. Once you `eject`, you can’t go back!**
-
-If you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
-
-Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
-
-You don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
-
-## Learn More
-
-You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
-
-To learn React, check out the [React documentation](https://reactjs.org/).

package.json

@@ -10,7 +10,9 @@
     "@types/node": "^16.18.23",
     "@types/react": "^18.0.33",
     "@types/react-dom": "^18.0.11",
+    "bootstrap": "^5.2.3",
     "react": "^18.2.0",
+    "react-bootstrap": "^2.7.2",
     "react-dom": "^18.2.0",
     "react-scripts": "5.0.1",
     "typescript": "^4.9.5",

server/.gitignore

@@ -0,0 +1 @@
+/node_modules

server/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "luncher-server",
+  "version": "1.0.0",
+  "main": "src/index.ts",
+  "license": "MIT",
+  "scripts": {
+    "start": "ts-node src/index.ts"
+  },
+  "devDependencies": {
+    "@types/request-promise": "^4.1.48",
+    "ts-node": "^10.9.1",
+    "typescript": "^5.0.2"
+  },
+  "dependencies": {
+    "cheerio": "^1.0.0-rc.12",
+    "cors": "^2.8.5",
+    "express": "^4.18.2",
+    "request": "^2.88.2",
+    "request-promise": "^4.2.6",
+    "socket.io": "^4.6.1"
+  }
+}

server/src/chefie.ts

@@ -0,0 +1,106 @@
+import $ from 'cheerio';
+import rp from 'request-promise';
+import os from 'os';
+import path from 'path';
+import fs from 'fs';
+
+type PizzaSize = {
+    size: string,
+    pizzaPrice: string,
+    boxPrice: number,
+    price: number
+}
+
+type Pizza = {
+    name: string,
+    ingredients: string[],
+    sizes: PizzaSize[],
+}
+
+// TODO mělo by být konfigurovatelné proměnnou z prostředí s tímhle jako default
+const baseUrl = 'https://www.pizzachefie.cz';
+const pizzyUrl = `${baseUrl}/pizzy.html?pobocka=plzen`;
+
+const buildPizzaUrl = (pizzaUrl: string) => {
+    return `${baseUrl}/${pizzaUrl}`;
+}
+
+// Ceny krabic dle velikosti
+const boxPrices = {
+    "30cm": 13,
+    "35cm": 15,
+    "40cm": 18,
+    "50cm": 25
+}
+
+/**
+ * Stáhne a scrapne aktuální pizzy ze stránek Pizza Chefie.
+ */
+const downloadPizzy = async () => {
+    // Získáme seznam pizz
+    const html = await rp(pizzyUrl);
+    const links = $('.vypisproduktu > div > h4 > a', html)
+    const urls = [];
+    for (let i = 0; i < links.length; i++) {
+        if (links[i].name === 'a' && links[i].attribs?.href) {
+            const pizzaUrl = links[i].attribs?.href;
+            urls.push(buildPizzaUrl(pizzaUrl));
+        }
+    }
+    // Scrapneme jednotlivé pizzy
+    const result: Pizza[] = [];
+    for (let i = 0; i < urls.length; i++) {
+        const pizzaUrl = urls[i];
+        const pizzaHtml = await rp(pizzaUrl);
+        // Název
+        const name = $('.produkt > h2', pizzaHtml).first().text()
+        // Přísady
+        const ingredients = []
+        const ingredientsHtml = $('.prisady > li', pizzaHtml);
+        ingredientsHtml.each((i, elm) => {
+            ingredients.push($(elm).text());
+        })
+        // Velikosti
+        const sizes = [];
+        const a = $('.varianty > li > a', pizzaHtml);
+        a.each((i, elm) => {
+            const size = $('span', elm).text();
+            const priceKc = $(elm).text().split(size).pop().trim();
+            const price = Number.parseInt(priceKc.split(" Kč")[0]);
+            sizes.push({ size: size, pizzaPrice: price, boxPrice: boxPrices[size], price: price + boxPrices[size] });
+        })
+        result.push({
+            name: name,
+            ingredients: ingredients,
+            sizes: sizes,
+        });
+    }
+    return result;
+}
+
+/**
+ * Vrátí pizzy z tempu, nebo čerstvě stažené, pokud v tempu nejsou.
+ */
+export const fetchPizzy = async () => {
+    const tmpDir = os.tmpdir();
+    const date_ob = new Date();
+    const date = ("0" + date_ob.getDate()).slice(-2);
+    const month = ("0" + (date_ob.getMonth() + 1)).slice(-2);
+    const year = date_ob.getFullYear();
+    const dateStr = year + "-" + month + "-" + date;
+    const dataPath = path.join(tmpDir, `chefie-${dateStr}.json`);
+
+    if (fs.existsSync(dataPath)) {
+        console.log(`Soubor pro ${dataPath} již existuje, bude použit.`);
+        const rawdata = fs.readFileSync(dataPath);
+        return JSON.parse(rawdata.toString());
+    } else {
+        console.log(`Soubor pro ${dataPath} neexistuje, stahuji...`);
+        const pizzy = await downloadPizzy();
+        fs.writeFileSync(dataPath, JSON.stringify(pizzy));
+        console.log(`Zapsán ${dataPath}`);
+        return pizzy;
+    }
+
+
+}

server/src/index.ts

@@ -0,0 +1,66 @@
+import express from "express";
+import { Server } from "socket.io";
+import bodyParser from "body-parser";
+import { fetchPizzy } from "./chefie";
+
+const app = express();
+const server = require("http").createServer(app);
+const io = new Server(server, {
+    cors: {
+        origin: "*",
+    },
+});
+
+// Body-parser middleware for parsing JSON
+app.use(bodyParser.json());
+
+const cors = require('cors');
+app.use(cors({
+    origin: '*'
+}));
+
+app.get("/api/pizza", (req, res) => {
+    fetchPizzy().then(pizzaList => {
+        console.log("Výsledek", pizzaList);
+        res.status(200).json(pizzaList);
+    });
+});
+
+app.post("/api/zprava", (req, res) => {
+    const { username, message } = req.body;
+
+    if (
+        typeof username !== "string" ||
+        typeof message !== "string" ||
+        username.length > 500 ||
+        message.length > 500
+    ) {
+        return res.status(400).json({ error: "Invalid input" });
+    }
+    console.log(`posílám ${username} ${message} `);
+    io.emit("externalMessage", `${username} -> ${message}`);
+    res.status(200).json({ success: "Message sent" });
+});
+
+io.on("connection", (socket) => {
+    console.log(`New client connected: ${socket.id}`);
+
+    socket.on("message", (message) => {
+        io.emit("message", message);
+    });
+
+    socket.on("jduKafe", ({ username, timeString }) => {
+        console.log(`Received message: ${username}`);
+        socket.broadcast.emit("jduKafe", `${timeString}: ${username} -> jdu Kafe`);
+    });
+
+    socket.on("disconnect", () => {
+        console.log(`Client disconnected: ${socket.id}`);
+    });
+});
+
+const PORT = process.env.PORT || 3001;
+
+server.listen(PORT, () => {
+    console.log(`Server listening on port ${PORT}`);
+});

server/tsconfig.json

@@ -0,0 +1,8 @@
+{
+    "compilerOptions": {
+        "target": "ES2016",
+        "module": "CommonJS",
+        "esModuleInterop": true,
+        "forceConsistentCasingInFileNames": true,
+    }
+}

src/Api.ts

@@ -0,0 +1,39 @@
+type Pizza = {
+    name: string;
+    // TODO ingredience
+    sizes: [
+        size: number,
+        price: number,
+    ];
+}
+
+const getBaseUrl = (): string => {
+    if (process.env.PUBLIC_URL) {
+        return process.env.PUBLIC_URL;
+    }
+    return 'http://localhost:3001';
+}
+
+async function request<TResponse>(
+    url: string,
+    config: RequestInit = {}
+): Promise<TResponse> {
+    console.log("Calling fetch on", getBaseUrl() + url);
+    return fetch(getBaseUrl() + url, config).then(response => {
+        if (!response.ok) {
+            console.log("Response", response.status)
+            throw new Error(response.statusText);
+        }
+        console.log("response", response);
+        return response.json() as TResponse;
+    });
+}
+
+const api = {
+    get: <TResponse>(url: string) => request<TResponse>(url),
+    post: <TBody extends BodyInit, TResponse>(url: string, body: TBody) => request<TResponse>(url, { method: 'POST', body }),
+}
+
+export const getPizzy = async () => {
+    return await api.get<any>('/api/pizza');
+}

src/App.test.tsx

@@ -1,9 +0,0 @@
-import React from 'react';
-import { render, screen } from '@testing-library/react';
-import App from './App';
-
-test('renders learn react link', () => {
-  render(<App />);
-  const linkElement = screen.getByText(/learn react/i);
-  expect(linkElement).toBeInTheDocument();
-});

src/App.tsx

@@ -1,24 +1,24 @@
-import React from 'react';
+import React, { useEffect, useState } from 'react';
-import logo from './logo.svg';
 import './App.css';
+import 'bootstrap/dist/css/bootstrap.min.css';
+import { Button } from 'react-bootstrap';
+import { getPizzy } from './Api';
 
 function App() {
+  const [pizzy, setPizzy] = useState();
+
+  useEffect(() => {
+    getPizzy().then(pizzy => {
+      setPizzy(pizzy);
+    });
+  }, []);
+
   return (
-    <div className="App">
+    <div>
-      <header className="App-header">
+      <Button onClick={async () => {
-        <img src={logo} className="App-logo" alt="logo" />
+        const pizzy = await getPizzy();
-        <p>
+        console.log("Výsledek", pizzy);
-          Edit <code>src/App.tsx</code> and save to reload.
+      }}>Získat pizzy</Button>
-        </p>
-        <a
-          className="App-link"
-          href="https://reactjs.org"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          Learn React
-        </a>
-      </header>
     </div>
   );
 }