1 files changed, 236 insertions, 0 deletions
diff --git a/apps/web/lib/createEmbeds.ts b/apps/web/lib/createEmbeds.ts
new file mode 100644
index 00000000..b3a7fb52
--- /dev/null
+++ b/apps/web/lib/createEmbeds.ts
@@ -0,0 +1,236 @@
+// @ts-nocheck TODO: A LOT OF TS ERRORS HERE
+
+import {
+  AssetRecordType,
+  Editor,
+  TLAsset,
+  TLAssetId,
+  TLBookmarkShape,
+  TLExternalContentSource,
+  TLShapePartial,
+  Vec,
+  VecLike,
+  createShapeId,
+  getEmbedInfo,
+  getHashForString,
+} from "tldraw";
+
+export default async function createEmbedsFromUrl({
+  url,
+  point,
+  sources,
+  editor,
+}: {
+  url: string;
+  point?: VecLike | undefined;
+  sources?: TLExternalContentSource[] | undefined;
+  editor: Editor;
+}) {
+  const position =
+    point ??
+    (editor.inputs.shiftKey
+      ? editor.inputs.currentPagePoint
+      : editor.getViewportPageBounds().center);
+
+  if (url?.includes("x.com") || url?.includes("twitter.com")) {
+    return editor.createShape({
+      type: "Twittercard",
+      x: position.x - 250,
+      y: position.y - 150,
+      props: { url: url },
+    });
+  }
+
+  // try to paste as an embed first
+  const embedInfo = getEmbedInfo(url);
+
+  if (embedInfo) {
+    return editor.putExternalContent({
+      type: "embed",
+      url: embedInfo.url,
+      point,
+      embed: embedInfo.definition,
+    });
+  }
+
+  const assetId: TLAssetId = AssetRecordType.createId(getHashForString(url));
+  const shape = createEmptyBookmarkShape(editor, url, position);
+
+  // Use an existing asset if we have one, or else else create a new one
+  let asset = editor.getAsset(assetId) as TLAsset;
+  let shouldAlsoCreateAsset = false;
+  if (!asset) {
+    shouldAlsoCreateAsset = true;
+    try {
+      const bookmarkAsset = await editor.getAssetForExternalContent({
+        type: "url",
+        url,
+      });
+      const fetchWebsite: {
+        title?: string;
+        image?: string;
+        description?: string;
+      } = await (
+        await fetch(`/api/unfirlsite?website=${url}`, {
+          method: "POST",
+        })
+      ).json();
+      if (bookmarkAsset) {
+        if (fetchWebsite.title) bookmarkAsset.props.title = fetchWebsite.title;
+        if (fetchWebsite.image) bookmarkAsset.props.image = fetchWebsite.image;
+        if (fetchWebsite.description)
+          bookmarkAsset.props.description = fetchWebsite.description;
+      }
+      if (!bookmarkAsset) throw Error("Could not create an asset");
+      asset = bookmarkAsset;
+    } catch (e) {
+      console.log(e);
+      return;
+    }
+  }
+
+  editor.batch(() => {
+    if (shouldAlsoCreateAsset) {
+      editor.createAssets([asset]);
+    }
+
+    editor.updateShapes([
+      {
+        id: shape.id,
+        type: shape.type,
+        props: {
+          assetId: asset.id,
+        },
+      },
+    ]);
+  });
+}
+
+function isURL(str: string) {
+  try {
+    new URL(str);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+function formatTextToRatio(text: string) {
+  const totalWidth = text.length;
+  const maxLineWidth = Math.floor(totalWidth / 10);
+
+  const words = text.split(" ");
+  let lines = [];
+  let currentLine = "";
+
+  words.forEach((word) => {
+    if ((currentLine + word).length <= maxLineWidth) {
+      currentLine += (currentLine ? " " : "") + word;
+    } else {
+      lines.push(currentLine);
+      currentLine = word;
+    }
+  });
+  if (currentLine) {
+    lines.push(currentLine);
+  }
+  return { height: (lines.length + 1) * 18, width: maxLineWidth * 10 };
+}
+
+export function handleExternalDroppedContent({
+  text,
+  editor,
+}: {
+  text: string;
+  editor: Editor;
+}) {
+  const position = editor.inputs.shiftKey
+    ? editor.inputs.currentPagePoint
+    : editor.getViewportPageBounds().center;
+
+  if (isURL(text)) {
+    createEmbedsFromUrl({ editor, url: text });
+  } else {
+    // editor.createShape({
+    //   type: "text",
+    //   x: position.x - 75,
+    //   y: position.y - 75,
+    //   props: {
+    //     text: text,
+    //     size: "s",
+    //     textAlign: "start",
+    //   },
+    // });
+    const { height, width } = formatTextToRatio(text);
+    editor.createShape({
+      type: "Textcard",
+      x: position.x - width / 2,
+      y: position.y - height / 2,
+      props: {
+        content: text,
+        extrainfo: "https://chatgpt.com/c/762cd44e-1752-495b-967a-aa3c23c6024a",
+        w: width,
+        h: height,
+      },
+    });
+  }
+}
+
+function centerSelectionAroundPoint(editor: Editor, position: VecLike) {
+  // Re-position shapes so that the center of the group is at the provided point
+  const viewportPageBounds = editor.getViewportPageBounds();
+  let selectionPageBounds = editor.getSelectionPageBounds();
+
+  if (selectionPageBounds) {
+    const offset = selectionPageBounds!.center.sub(position);
+
+    editor.updateShapes(
+      editor.getSelectedShapes().map((shape) => {
+        const localRotation = editor
+          .getShapeParentTransform(shape)
+          .decompose().rotation;
+        const localDelta = Vec.Rot(offset, -localRotation);
+        return {
+          id: shape.id,
+          type: shape.type,
+          x: shape.x! - localDelta.x,
+          y: shape.y! - localDelta.y,
+        };
+      }),
+    );
+  }
+
+  // Zoom out to fit the shapes, if necessary
+  selectionPageBounds = editor.getSelectionPageBounds();
+  if (
+    selectionPageBounds &&
+    !viewportPageBounds.contains(selectionPageBounds)
+  ) {
+    editor.zoomToSelection();
+  }
+}
+
+export function createEmptyBookmarkShape(
+  editor: Editor,
+  url: string,
+  position: VecLike,
+): TLBookmarkShape {
+  const partial: TLShapePartial = {
+    id: createShapeId(),
+    type: "bookmark",
+    x: position.x - 150,
+    y: position.y - 160,
+    opacity: 1,
+    props: {
+      assetId: null,
+      url,
+    },
+  };
+
+  editor.batch(() => {
+    editor.createShapes([partial]).select(partial.id);
+    centerSelectionAroundPoint(editor, position);
+  });
+
+  return editor.getShape(partial.id) as TLBookmarkShape;
+}