Immediately parse pre-filled links in composer state (#6974)

* Immediately parse pre-filled links in composer state

* Add hack to fix PasteInput height bug

* Parse out ext links separately from post links

1 files changed, 68 insertions, 2 deletions

diff --git a/src/view/com/composer/state/composer.ts b/src/view/com/composer/state/composer.ts
index a0f286419..6d4f10297 100644
--- a/src/view/com/composer/state/composer.ts
+++ b/src/view/com/composer/state/composer.ts
@@ -1,5 +1,5 @@
 import {ImagePickerAsset} from 'expo-image-picker'
-import {AppBskyFeedPostgate, RichText} from '@atproto/api'
+import {AppBskyFeedPostgate, AppBskyRichtextFacet, RichText} from '@atproto/api'
 import {nanoid} from 'nanoid/non-secure'
 
 import {SelfLabel} from '#/lib/moderation'
@@ -16,6 +16,10 @@ import {Gif} from '#/state/queries/tenor'
 import {threadgateViewToAllowUISetting} from '#/state/queries/threadgate'
 import {ThreadgateAllowUISetting} from '#/state/queries/threadgate'
 import {ComposerOpts} from '#/state/shell/composer'
+import {
+  LinkFacetMatch,
+  suggestLinkCardUri,
+} from '#/view/com/composer/text-input/text-input-util'
 import {createVideoState, VideoAction, videoReducer, VideoState} from './video'
 
 type ImagesMedia = {
@@ -508,6 +512,68 @@ export function createComposerState({
         )
       : '',
   })
+
+  let link: Link | undefined
+
+  /**
+   * `initText` atm is only used for compose intents, meaning share links from
+   * external sources. If `initText` is defined, we want to extract links/posts
+   * from `initText` and suggest them as embeds.
+   *
+   * This checks for posts separately from other types of links so that posts
+   * can become quotes. The util `suggestLinkCardUri` is then applied to ensure
+   * we suggest at most 1 of each.
+   */
+  if (initText) {
+    initRichText.detectFacetsWithoutResolution()
+    const detectedExtUris = new Map<string, LinkFacetMatch>()
+    const detectedPostUris = new Map<string, LinkFacetMatch>()
+    if (initRichText.facets) {
+      for (const facet of initRichText.facets) {
+        for (const feature of facet.features) {
+          if (AppBskyRichtextFacet.isLink(feature)) {
+            if (isBskyPostUrl(feature.uri)) {
+              detectedPostUris.set(feature.uri, {facet, rt: initRichText})
+            } else {
+              detectedExtUris.set(feature.uri, {facet, rt: initRichText})
+            }
+          }
+        }
+      }
+    }
+    const pastSuggestedUris = new Set<string>()
+    const suggestedExtUri = suggestLinkCardUri(
+      true,
+      detectedExtUris,
+      new Map(),
+      pastSuggestedUris,
+    )
+    if (suggestedExtUri) {
+      link = {
+        type: 'link',
+        uri: suggestedExtUri,
+      }
+    }
+    const suggestedPostUri = suggestLinkCardUri(
+      true,
+      detectedPostUris,
+      new Map(),
+      pastSuggestedUris,
+    )
+    if (suggestedPostUri) {
+      /*
+       * `initQuote` is only populated via in-app user action, but we're being
+       * future-defensive here.
+       */
+      if (!quote) {
+        quote = {
+          type: 'link',
+          uri: suggestedPostUri,
+        }
+      }
+    }
+  }
+
   return {
     activePostIndex: 0,
     mutableNeedsFocusActive: false,
@@ -521,7 +587,7 @@ export function createComposerState({
           embed: {
             quote,
             media,
-            link: undefined,
+            link,
           },
         },
       ],