chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

app/components/CollectionDescription.tsx

@@ -0,0 +1,217 @@
+import { observer } from "mobx-react";
+import { transparentize } from "polished";
+import * as React from "react";
+import { useTranslation } from "react-i18next";
+import styled from "styled-components";
+import Collection from "~/models/Collection";
+import Arrow from "~/components/Arrow";
+import ButtonLink from "~/components/ButtonLink";
+import Editor from "~/components/Editor";
+import LoadingIndicator from "~/components/LoadingIndicator";
+import NudeButton from "~/components/NudeButton";
+import useDebouncedCallback from "~/hooks/useDebouncedCallback";
+import useStores from "~/hooks/useStores";
+import useToasts from "~/hooks/useToasts";
+
+type Props = {
+  collection: Collection;
+};
+
+function CollectionDescription({ collection }: Props) {
+  const { collections, policies } = useStores();
+  const { showToast } = useToasts();
+  const { t } = useTranslation();
+  const [isExpanded, setExpanded] = React.useState(false);
+  const [isEditing, setEditing] = React.useState(false);
+  const [isDirty, setDirty] = React.useState(false);
+  const can = policies.abilities(collection.id);
+
+  const handleStartEditing = React.useCallback(() => {
+    setEditing(true);
+  }, []);
+
+  const handleStopEditing = React.useCallback(() => {
+    setEditing(false);
+  }, []);
+
+  const handleClickDisclosure = React.useCallback(
+    (event) => {
+      event.preventDefault();
+
+      if (isExpanded && document.activeElement) {
+        // @ts-expect-error ts-migrate(2339) FIXME: Property 'blur' does not exist on type 'Element'.
+        document.activeElement.blur();
+      }
+
+      setExpanded(!isExpanded);
+    },
+    [isExpanded]
+  );
+
+  const handleSave = useDebouncedCallback(async (getValue) => {
+    try {
+      await collection.save({
+        description: getValue(),
+      });
+      setDirty(false);
+    } catch (err) {
+      showToast(
+        t("Sorry, an error occurred saving the collection", {
+          type: "error",
+        })
+      );
+      throw err;
+    }
+  }, 1000);
+
+  const handleChange = React.useCallback(
+    (getValue) => {
+      setDirty(true);
+      handleSave(getValue);
+    },
+    [handleSave]
+  );
+
+  React.useEffect(() => {
+    setEditing(false);
+  }, [collection.id]);
+  const placeholder = `${t("Add a description")}…`;
+  const key = isEditing || isDirty ? "draft" : collection.updatedAt;
+
+  return (
+    <MaxHeight data-editing={isEditing} data-expanded={isExpanded}>
+      <Input data-editing={isEditing} data-expanded={isExpanded}>
+        <span onClick={can.update ? handleStartEditing : undefined}>
+          {collections.isSaving && <LoadingIndicator />}
+          {collection.hasDescription || isEditing || isDirty ? (
+            // @ts-expect-error ts-migrate(2769) FIXME: No overload matches this call.
+            <React.Suspense fallback={<Placeholder>Loading…</Placeholder>}>
+              <Editor
+                key={key}
+                defaultValue={collection.description || ""}
+                onChange={handleChange}
+                placeholder={placeholder}
+                readOnly={!isEditing}
+                autoFocus={isEditing}
+                onBlur={handleStopEditing}
+                maxLength={1000}
+                disableEmbeds
+                readOnlyWriteCheckboxes
+                grow
+              />
+            </React.Suspense>
+          ) : (
+            can.update && (
+              <Placeholder
+                onClick={() => {
+                  //
+                }}
+              >
+                {placeholder}
+              </Placeholder>
+            )
+          )}
+        </span>
+      </Input>
+      {!isEditing && (
+        <Disclosure
+          onClick={handleClickDisclosure}
+          aria-label={isExpanded ? t("Collapse") : t("Expand")}
+          size={30}
+        >
+          <Arrow />
+        </Disclosure>
+      )}
+    </MaxHeight>
+  );
+}
+
+const Disclosure = styled(NudeButton)`
+  opacity: 0;
+  color: ${(props) => props.theme.divider};
+  position: absolute;
+  top: calc(25vh - 50px);
+  left: 50%;
+  z-index: 1;
+  transform: rotate(-90deg) translateX(-50%);
+  transition: opacity 100ms ease-in-out;
+
+  &:focus,
+  &:hover {
+    opacity: 1;
+  }
+
+  &:active {
+    color: ${(props) => props.theme.sidebarText};
+  }
+`;
+
+const Placeholder = styled(ButtonLink)`
+  color: ${(props) => props.theme.placeholder};
+  cursor: text;
+  min-height: 27px;
+`;
+
+const MaxHeight = styled.div`
+  position: relative;
+  max-height: 25vh;
+  overflow: hidden;
+  margin: -12px -8px -8px;
+  padding: 8px;
+
+  &[data-editing="true"],
+  &[data-expanded="true"] {
+    max-height: initial;
+    overflow: initial;
+
+    ${Disclosure} {
+      top: initial;
+      bottom: 0;
+      transform: rotate(90deg) translateX(-50%);
+    }
+  }
+
+  &:hover ${Disclosure} {
+    opacity: 1;
+  }
+`;
+
+const Input = styled.div`
+  margin: -8px;
+  padding: 8px;
+  border-radius: 8px;
+  transition: ${(props) => props.theme.backgroundTransition};
+
+  &:after {
+    content: "";
+    position: absolute;
+    top: calc(25vh - 50px);
+    left: 0;
+    right: 0;
+    height: 50px;
+    pointer-events: none;
+    background: linear-gradient(
+      180deg,
+      ${(props) => transparentize(1, props.theme.background)} 0%,
+      ${(props) => props.theme.background} 100%
+    );
+  }
+
+  &[data-editing="true"],
+  &[data-expanded="true"] {
+    &:after {
+      background: transparent;
+    }
+  }
+
+  &[data-editing="true"] {
+    background: ${(props) => props.theme.secondaryBackground};
+  }
+
+  .block-menu-trigger,
+  .heading-anchor {
+    display: none !important;
+  }
+`;
+
+export default observer(CollectionDescription);