68 lines
2.5 KiB
JavaScript
68 lines
2.5 KiB
JavaScript
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import React, { useState, useEffect } from "react";
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import { Link, useNavigate } from "react-router-dom";
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const Home = (props) => {
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// The randomly generated URL is a side effect and as such, we'll need
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// to generate it in a useEffect hook and update this state to have it
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// properly rendered in our component
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const [randomURL, setRandomURL] = useState(null);
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// Used to programatically navigate with React Router
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const navigate = useNavigate();
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useEffect(() => {
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/* If the user navigates to "/?u=[id]", they should be routed to
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* the Bookmarks page. We do this because this is a single-page
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* app and if the user tries to access /u/[id] directly, they'll
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* get a 404 reponse.
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*/
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// Access the query parameters
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const params = new URLSearchParams(window.location.search);
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const id = params.get("u");
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if (id != null) {
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// Navigate to the respective page
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navigate("/u/" + id);
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}
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// Generate the random ID
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const randomID = Math.floor(Math.random() * 1000000);
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// Store the full random URL so it can be navigated to
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setRandomURL("/u/" + randomID);
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}, []);
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return (
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<div className = "main-container">
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<h1> Welcome to Cat Bookmarker </h1>
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<p>
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Cat Bookmarker is a tool that serves random cat images from
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the <a href="https://cataas.com">Cataas</a> (Cat As A Service)
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API and invites you to bookmark the ones you like so that you
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can come back to them later. You can categorize your cat photos
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with user-generated tags and you can leave a note to remind
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yourself why you liked the cat so much in the first place.
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</p>
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<p>
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Cat Bookmarker features a very rudimentary user authentication
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system using randomly generated user IDs and HTTP Authorization
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headers. Every number that won't cause an integer overflow is
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a valid user that has its own bookmarks and categories.
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</p>
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{ /* Only render the new URL once it's generated */ }
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{ randomURL != null
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? <p>
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Don't already have an account? Try:<br/>
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<Link to={randomURL}>{randomURL}</Link>
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</p>
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: <></>
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}
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</div>
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);
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};
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export default Home;
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