treemix/index.html at main · CST1229/treemix · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>treemix</title>
	<style>
		body {
			font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;
		}
		#projectInput {
			width: min(26em, 100vw - 8em);
		}
		#errorText {
			font-weight: bold;
			color: red;
		}
		.settingExplanation {
			margin-top: 0;
			margin-left: 1.5rem;
			color: gray;
			font-size: 75%;
		}

		button {
			cursor: pointer;
		}
		button:disabled {
			cursor: default;
		}
		#exportURL[href="#"], #exportURL[href="#"] button {
			cursor: default;
			pointer-events: none;
		}

		.tree-viewer-text, .tree-viewer-textCompact {
			white-space: pre;
			font-family: monospace;
		}

		/* Scratch remix tree styles */
		.tree-viewer-scratch #tree {
			overflow-y: hidden;
			overflow-x: hidden;
			background-color: #ffffff;
			width: 940px;
			height: 500px;
			float: left;
			position: relative;
		}
		.tree-viewer-scratch {
			height: 500px;
		}
		.tree-viewer-scratch #textOverlay {
			height: 100%;
			width: 100%;
			position: absolute;
			top: -16px;
			left: 0px;
			pointer-events: none;
		}
		.tree-viewer-scratch .overText {
			position: absolute;
			white-space: nowrap;
			overflow: hidden;
			text-overflow: ellipsis;
			-o-text-overflow: ellipsis;
		}
		.tree-viewer-scratch .boldText {
			font-weight: bold;
		}
		.tree-viewer-scratch .clickable {
			cursor: pointer;
		}

		.tree-viewer-scratch .zoom {
			float:right;
			cursor: pointer;
			background-repeat: no-repeat;
		}

		.tree-viewer-scratch .zoom:hover {
			margin-top:-21px;
		}

		.tree-viewer-scratch #zoomContainer {
			width:77px;
			height:21px;
			position: absolute;
			top: 5px;
			overflow: hidden;
		}
	</style>
</head>
<body>
	<noscript>you need JavaScript enabled by the way</noscript>
	<h1>treemix (remix trees but unofficial)</h1>
	<p>made by <a href="https://scratch.mit.edu/users/CST1229" target="_blank">@CST1229</a></p>
	<p><a href="https://github.com/CST1229/treemix" target="_blank">source code</a></p>

	<b>the cors proxy this was using no longer works. suggest working ones (for api.scratch.mit.edu/projects/*/remixes) in <a href="https://github.com/CST1229/treemix/issues/1">github issue #1</a> because im lazy</b>

	<div><input type="text" placeholder="Scratch project URL or ID number" id="projectInput"> <button id="goButton">go!</button></div>
	<div>
		or...
		<input type="file" id="filePicker" style="display: none" accept=".json">
		<a href="#" id="exportURL"><button tabindex="-1" disabled id="exportButton">export JSON</button></a>
		<button id="importButton">import from exported JSON</button>
	</div>
	<div>
		<label>
			Tree viewer:
			<select id="treeViewer">
				<option value="scratch">Scratch's</option>
				<option value="text">Text-based list</option>
				<option value="textCompact">Text-based list (compact)</option>
			</select>
		</label>
	</div>
	<!-- apparently the API actually just returns 0 for all remixes, so this option isn't feasible
	<label>
		<input type="checkbox" id="trustAPICheckbox">
		Trust Scratch API remix count (faster, may miss some projects)
		<p class="settingExplanation">
			If enabled, the tool will skip scanning projects that the remix list says have a remix count of 0.
			Said count isn't fully accurate, so some projects that do actually have remixes might be missing in the output.
		</p>
	</label>
	-->

	<br/>
	<div id="statusText"></div>
	<div id="queueText"></div>
	<div id="errorText"></div>
	<br/>

	<div id="treeContainer" class="tree-container"></div>

	<script type="module">
		window.MS_PER_REQUEST = 500;
		window.CORS_PROXY = "https://corsproxy.io/?url=";

		let trustAPI = false;

		let going = false;
		let stopping = false;

		function setError(status) {
			errorText.textContent = status;
		}
		function setStatus(status) {
			statusText.textContent = status;
		}
		let apiTimeout = null;
		async function waitRate() {
			if (apiTimeout) {
				const oldStatus = statusText.textContent;
				setStatus((oldStatus + " (waiting for ratelimit...)").trimStart());
				await apiTimeout;
				setStatus(oldStatus);
			}
			apiTimeout = new Promise(res => setTimeout(res, MS_PER_REQUEST));
		}
		function updateQueue(queue) {
			if (queue.length === 0) {
				queueText.textContent = "";
				return;
			}
			const text = queue.map((j, i) => i === 0 ? `[[${j.id}]]` : `${j.id}`).join(", ");
			queueText.textContent = `${queue.length} project${queue.length === 1 ? "" : "s"} in queue: ${text}`;
		}

		async function makeApiRequest(url) {
			let resp;
			try {
				resp = await fetch(url);
			} catch(e) {
				setError(`request to ${url} failed! ${e}`);
				console.error(url, e);
				return null;
			}
			if (!resp.ok) {
				const text = await resp.text();
				setError(`request to ${url} received status ${resp.status} ${resp.statusText} - content: ${text}`);
				console.error(url, text);
				return null;
			}
			try {
				return await resp.json();
			} catch(e) {
				const text = await resp.text();
				setError(`request to ${url} received invalid json - content: ${text}`);
				console.error(url, text);
				return null;
			}
		}
		function fetchProject(id) {
			if (isNaN(id)) {
				throw new TypeError(`fetchProject: ${id} is not a number`);
			}
			return makeApiRequest(`https://trampoline.turbowarp.org/api/projects/${id}`);
		}
		async function fetchRemixes(project, queue) {
			if (!going) return [];

			const id = (project || {}).id;
			if (isNaN(id)) {
				throw new TypeError(`fetchRemixes: ${id} is not a number`);
			}

			const remixCount = project.stats.remixes;
			if (trustAPI && remixCount <= 0) {
				return [];
			}
			const LIMIT = remixCount < 10 ? 20 : 40;

			let maxPages = Math.max(1, Math.ceil(remixCount / LIMIT)).toString();
			if (!trustAPI) {
				maxPages += "?";
			}
			let offset = 0;
			let page = 1;

			let resp;
			const remixes = [];
			do {
				setStatus(`Fetching page ${page}/${maxPages} of remixes...`);
				await waitRate();

				let url = `https://api.scratch.mit.edu/projects/${id}/remixes?${
					LIMIT === 20 ? "" : `limit=${LIMIT}&`
				}${
					offset > 0 ? `offset=${offset}&` : ""
				}`;
				if (url.endsWith("&")) url = url.slice(0, -1);
				if (url.endsWith("?")) url = url.slice(0, -1);

				resp = await makeApiRequest(`${CORS_PROXY}${encodeURIComponent(url)}`);
				if (resp) {
					remixes.push(...resp);
					for (const remix of resp) {
						if (!trustAPI || remix.stats.remixes > 0) {
							queue.push(remix);
						}
					}
					updateQueue(queue);
				}
				offset += LIMIT;
				page++;
			} while (going && resp && resp.length == LIMIT && (!trustAPI || (offset + LIMIT) < remixCount));
			return remixes;
		};

		let lastObjectURL = "";
		let visualizedData = null;
		projectInput.onkeydown = function(/** @type {KeyboardEvent} */ ev) {
			if (ev.key === "Enter" && !goButton.disabled) {
				goButton.click();
			}
		};
		goButton.onclick = async function() {
			if (stopping) return;
			if (going) {
				stopping = true;
				going = false;
				goButton.disabled = true;
				goButton.textContent = "stopping...";
				return;
			}
			going = true;
			goButton.textContent = "stop!";
			setError("");

			const match = String(projectInput.value).match(/\d+/);
			if (!match) {
				setError("no numbers inputted");
				return;
			}

			setStatus("");
			updateQueue([]);
			treeContainer.textContent = "";
			visualizedData = null;

			let data = null;
			importButton.disabled = true;
			try {
				data = await getRemixTree(+match[0]);
			} catch(e) {
				setError(`something went really wrong with fetching! ${e}`);
				console.log(e);
				return;
			} finally {
				setStatus("");
				going = false;
				stopping = false;
				goButton.disabled = false;
				importButton.disabled = false;
				goButton.textContent = "go!";
			}

			if (data) {
				try {
					await visualizeRemixTree(data);
				} catch(e) {
					setError(`something went really wrong with visualization! ${e}`);
					console.log(e);
					return;
				}
			}
		};
		importButton.onclick = function() {
			filePicker.value = null;
			filePicker.click();
		};
		filePicker.onchange = async function() {
			if (filePicker.files.length) {
				/** @type {File} */
				const file = filePicker.files[0];
				let text, data;
				try {
					text = await file.text();
				} catch(e) {
					setError(`something went really wrong with reading the file! ${e}`);
					console.log(e);
					return;
				}

				try {
					data = JSON.parse(text);
				} catch(e) {
					setError(`file doesn't seem to be valid JSON. ${e}`);
					console.log(e);
					return;
				}

				try {
					setError("");
					setStatus("");
					updateQueue([]);
					exportButton.disabled = false;
					treeContainer.textContent = "";
					visualizedData = null;
					visualizeRemixTree(data);
				} catch(e) {
					setError(`something went really wrong with visualization! are you sure this file was exported from this tool? ${e}`);
					console.log(e);
					return;
				}
			}
		};


		async function getRemixTree(rootId) {
			setStatus("Fetching main project...");
			await waitRate();
			const mainJson = await fetchProject(rootId);
			if (!mainJson) return null;
			delete mainJson.project_token;
			const queue = [mainJson];

			window.treemixProject = mainJson;
			window.treemixQueue = queue;

			updateQueue(queue);
			while (queue.length > 0) {
				const currentProject = queue[0];
				currentProject.remixes = await fetchRemixes(currentProject, queue);
				queue.shift();
				updateQueue(queue);
			}
			return mainJson;
		}

		const treeViewers = {
			scratch: treeScratch,
			text: treeText,
			textCompact: treeTextCompact,
		};

		treeViewer.onchange = function() {
			if (visualizedData) visualizeRemixTree(visualizedData);
		};
		function visualizeRemixTree(data) {
			setStatus("");
			if (lastObjectURL) {
				URL.revokeObjectURL(lastObjectURL);
				lastObjectURL = "";
			}
			visualizedData = data;
			const blob = new Blob([JSON.stringify(data)], {type: "application/json"});
			lastObjectURL = URL.createObjectURL(blob);
			exportURL.href = lastObjectURL;
			exportURL.download = data.id + "-remixtree.json";
			exportButton.disabled = false;

			treeContainer.textContent = "";
			const viewer = treeViewer.value;
			treeContainer.className = "tree-container";
			if (!treeViewers.hasOwnProperty(viewer)) {
				setError(`Tree viewer ${viewer} not found.`);
				return;
			}
			treeContainer.classList.add("tree-viewer-" + viewer);
			treeViewers[viewer](data);
		}

		function convertDataForScratch(data, newData, parentId) {
			function makeDate(date) {
				return new Date(date).toLocaleString("en-US", {
					month: "short",
					day: "numeric",
					year: "numeric",
					hour: "numeric",
					minute: "numeric",
				});
			}
			newData[data.id] = {
				"title": data.title,
				"creator": data.author.username,
				"favorite_count": data.stats.favorites,
				"love_count": data.stats.loves,
				"parent_id": parentId,
				"visibility": "visible",
				"moderation_status": "safe",
				"is_published": true,
				"children": data.remixes.map(r => r.id.toString()),
			};
			for (const remix of data.remixes) {
				convertDataForScratch(remix, newData, data.id);
			}
		}
		let loadedTreeJs = false;
		let treeURL = "";
		async function treeScratch(data) {
			if (treeURL) {
				URL.revokeObjectURL(treeURL);
				treeURL = "";
			}

			const treeDiv = document.createElement("div");
			treeDiv.id = "tree";
			treeContainer.appendChild(treeDiv);


			const newData = {};
			newData.id = data.id;
			// this would require fetching the root project. i am not doing that yet
			const USE_ROOT = false;
			if (USE_ROOT) {
				newData.root_id = data.remix.root || data.id;
				convertDataForScratch(data, newData, data.remix.parent || null);
			} else {
				newData.root_id = data.id;
				convertDataForScratch(data, newData, null);
			}

			window.scratchTreeData = newData;

			window.navData = [];
			window.Scratch = {};
			Scratch.INIT_DATA = {};
			Scratch.INIT_DATA.GLOBAL_URLS = {
				"media_url": "https://uploads.scratch.mit.edu/",
				"static_url": "https://cdn.scratch.mit.edu/scratchr2/static/__5b3e40ec58a840b41702360e9891321b__/",
				"static_path": "https://scratch.mit.edu/scratchr2/static/__5b3e40ec58a840b41702360e9891321b__/"
			};
			treeURL = URL.createObjectURL(new Blob([JSON.stringify(newData)], {type: "text/plain"}));

			if (!loadedTreeJs) {
				loadedTreeJs = true;
				setStatus("Loading libraries...");
				function loadScript(src) {
					const script = document.createElement("script");
					script.src = src;
					document.body.appendChild(script);
					return new Promise((res, rej) => {
						script.onload = res;
						script.onerror = rej;
					});
				}
				await loadScript("./lib/jquery.min.js");
				await loadScript("./lib/treejs.js");
			}
			setStatus("Constructing tree...");
			window.buildTree(treeURL, data.id);
			setStatus("(NOTE: unlike the actual Scratch remix tree viewer, parent remixes aren't visible)");
		}


		function treeText(data) {
			treeContainer.textContent = _treeTextRecursive(data, false);
		}
		function treeTextCompact(data) {
			treeContainer.textContent = _treeTextRecursive(data, true);
		}
		function _treeTextRecursive(data, compact = false, treeLine = "", deepTreeLine = "") {
			if (compact) {
				treeLine = treeLine.slice(0, -1);
				deepTreeLine = deepTreeLine.slice(0, -1);
			}
			let text = "";
			text += `${treeLine}(${data.id}) "${data.title}" by ${data.author.username}\n`;
			for (let i = 0; i < data.remixes.length; i++) {
				const remix = data.remixes[i];
				// padding
				// text += deepTreeLine + "│ " + "\n";
				if (i === data.remixes.length - 1) {
					text += _treeTextRecursive(remix, compact, deepTreeLine + "└─", deepTreeLine + "  ");
				} else {
					text += _treeTextRecursive(remix, compact, deepTreeLine + "├─", deepTreeLine + "│ ");
				}
			}
			return text;
		}
	</script>
</body>
</html>