From 371cabfabcf5f58d0f53dbc1221fc259f5f93cd1 Mon Sep 17 00:00:00 2001
From: Dan Abramov <dan.abramov@gmail.com>
Date: Tue, 22 Oct 2024 21:06:46 +0100
Subject: [PATCH] New empty state for feeds

---
 src/view/com/feeds/ProfileFeedgens.tsx | 201 +++++++++++++++++++++++--
 src/view/screens/Profile.tsx           |   1 +
 2 files changed, 189 insertions(+), 13 deletions(-)

diff --git a/src/view/com/feeds/ProfileFeedgens.tsx b/src/view/com/feeds/ProfileFeedgens.tsx
index 693a8e361a..1ae9db8796 100644
--- a/src/view/com/feeds/ProfileFeedgens.tsx
+++ b/src/view/com/feeds/ProfileFeedgens.tsx
@@ -7,24 +7,33 @@ import {
   ViewStyle,
 } from 'react-native'
 import {msg} from '@lingui/macro'
+import {Trans} from '@lingui/macro'
 import {useLingui} from '@lingui/react'
+import {useNavigation} from '@react-navigation/native'
 import {useQueryClient} from '@tanstack/react-query'
 
+import {useGenerateStarterPackMutation} from '#/lib/generate-starterpack'
+import {NavigationProp} from '#/lib/routes/types'
 import {cleanError} from '#/lib/strings/errors'
+import {parseStarterPackUri} from '#/lib/strings/starter-pack'
 import {logger} from '#/logger'
 import {isNative, isWeb} from '#/platform/detection'
 import {usePreferencesQuery} from '#/state/queries/preferences'
 import {RQKEY, useProfileFeedgensQuery} from '#/state/queries/profile-feedgens'
-import {EmptyState} from '#/view/com/util/EmptyState'
 import {FeedLoadingPlaceholder} from '#/view/com/util/LoadingPlaceholder'
+import {Text} from '#/view/com/util/text/Text'
 import {atoms as a, ios, useTheme} from '#/alf'
+import {Button, ButtonIcon, ButtonText} from '#/components/Button'
+import {useDialogControl} from '#/components/Dialog'
 import * as FeedCard from '#/components/FeedCard'
+import {PlusSmall_Stroke2_Corner0_Rounded as Plus} from '#/components/icons/Plus'
+import {LinearGradientBackground} from '#/components/LinearGradientBackground'
+import * as Prompt from '#/components/Prompt'
 import {ErrorMessage} from '../util/error/ErrorMessage'
 import {List, ListRef} from '../util/List'
 import {LoadMoreRetryBtn} from '../util/LoadMoreRetryBtn'
 
 const LOADING = {_reactKey: '__loading__'}
-const EMPTY = {_reactKey: '__empty__'}
 const ERROR_ITEM = {_reactKey: '__error__'}
 const LOAD_MORE_ERROR_ITEM = {_reactKey: '__load_more_error__'}
 
@@ -40,13 +49,23 @@ interface ProfileFeedgensProps {
   style?: StyleProp<ViewStyle>
   testID?: string
   setScrollViewTag: (tag: number | null) => void
+  isMe: boolean
 }
 
 export const ProfileFeedgens = React.forwardRef<
   SectionRef,
   ProfileFeedgensProps
 >(function ProfileFeedgensImpl(
-  {did, scrollElRef, headerOffset, enabled, style, testID, setScrollViewTag},
+  {
+    did,
+    scrollElRef,
+    headerOffset,
+    enabled,
+    style,
+    testID,
+    setScrollViewTag,
+    isMe,
+  },
   ref,
 ) {
   const {_} = useLingui()
@@ -74,7 +93,7 @@ export const ProfileFeedgens = React.forwardRef<
     if (!isFetched && isFetching) {
       items = items.concat([LOADING])
     } else if (isEmpty) {
-      items = items.concat([EMPTY])
+      // -- handled separately --
     } else if (data?.pages) {
       for (const page of data?.pages) {
         items = items.concat(page.feeds)
@@ -131,15 +150,7 @@ export const ProfileFeedgens = React.forwardRef<
 
   const renderItem = React.useCallback(
     ({item, index}: ListRenderItemInfo<any>) => {
-      if (item === EMPTY) {
-        return (
-          <EmptyState
-            icon="hashtag"
-            message={_(msg`You have no feeds.`)}
-            testID="listsEmpty"
-          />
-        )
-      } else if (item === ERROR_ITEM) {
+      if (item === ERROR_ITEM) {
         return (
           <ErrorMessage message={cleanError(error)} onPressTryAgain={refetch} />
         )
@@ -198,7 +209,171 @@ export const ProfileFeedgens = React.forwardRef<
         // @ts-ignore our .web version only -prf
         desktopFixedHeight
         onEndReached={onEndReached}
+        ListEmptyComponent={Empty}
+        ListFooterComponent={
+          items?.length !== 0 && isMe ? CreateAnother : undefined
+        }
       />
     </View>
   )
 })
+
+function CreateAnother() {
+  const {_} = useLingui()
+  const t = useTheme()
+  const navigation = useNavigation<NavigationProp>()
+
+  return (
+    <View
+      style={[
+        a.pr_md,
+        a.pt_lg,
+        a.gap_lg,
+        a.border_t,
+        t.atoms.border_contrast_low,
+      ]}>
+      <Button
+        label={_(msg`Create a starter pack`)}
+        variant="solid"
+        color="secondary"
+        size="small"
+        style={[a.self_center]}
+        onPress={() => navigation.navigate('StarterPackWizard')}>
+        <ButtonText>
+          <Trans>Create another</Trans>
+        </ButtonText>
+        <ButtonIcon icon={Plus} position="right" />
+      </Button>
+    </View>
+  )
+}
+
+function Empty() {
+  const {_} = useLingui()
+  const t = useTheme()
+  const navigation = useNavigation<NavigationProp>()
+  const confirmDialogControl = useDialogControl()
+  const followersDialogControl = useDialogControl()
+  const errorDialogControl = useDialogControl()
+
+  const [isGenerating, setIsGenerating] = React.useState(false)
+
+  const {mutate: generateStarterPack} = useGenerateStarterPackMutation({
+    onSuccess: ({uri}) => {
+      const parsed = parseStarterPackUri(uri)
+      if (parsed) {
+        navigation.push('StarterPack', {
+          name: parsed.name,
+          rkey: parsed.rkey,
+        })
+      }
+      setIsGenerating(false)
+    },
+    onError: e => {
+      logger.error('Failed to generate starter pack', {safeMessage: e})
+      setIsGenerating(false)
+      if (e.name === 'NOT_ENOUGH_FOLLOWERS') {
+        followersDialogControl.open()
+      } else {
+        errorDialogControl.open()
+      }
+    },
+  })
+
+  const generate = () => {
+    setIsGenerating(true)
+    generateStarterPack()
+  }
+
+  return (
+    <LinearGradientBackground
+      style={[
+        a.px_lg,
+        a.py_lg,
+        a.justify_between,
+        a.gap_lg,
+        a.shadow_lg,
+        {marginTop: 2},
+      ]}>
+      <View style={[a.gap_xs]}>
+        <Text
+          style={[
+            a.font_bold,
+            a.text_lg,
+            t.atoms.text_contrast_medium,
+            {color: 'white'},
+          ]}>
+          <Trans>You haven't created a feed yet!</Trans>
+        </Text>
+        <Text style={[a.text_md, {color: 'white'}]}>
+          <Trans>
+            Create a feed to curate your own and others people's posts.
+          </Trans>
+        </Text>
+      </View>
+      <View style={[a.flex_row, a.gap_md, {marginLeft: 'auto'}]}>
+        <Button
+          label={_(msg`Create a starter pack`)}
+          variant="ghost"
+          color="primary"
+          size="small"
+          disabled={isGenerating}
+          onPress={() => navigation.navigate('StarterPackWizard')}
+          style={{
+            backgroundColor: 'white',
+            borderColor: 'white',
+            width: 100,
+          }}
+          hoverStyle={[{backgroundColor: '#dfdfdf'}]}>
+          <ButtonText>
+            <Trans>Create</Trans>
+          </ButtonText>
+        </Button>
+      </View>
+
+      <Prompt.Outer control={confirmDialogControl}>
+        <Prompt.TitleText>
+          <Trans>Generate a starter pack</Trans>
+        </Prompt.TitleText>
+        <Prompt.DescriptionText>
+          <Trans>
+            Bluesky will choose a set of recommended accounts from people in
+            your network.
+          </Trans>
+        </Prompt.DescriptionText>
+        <Prompt.Actions>
+          <Prompt.Action
+            color="primary"
+            cta={_(msg`Choose for me`)}
+            onPress={generate}
+          />
+          <Prompt.Action
+            color="secondary"
+            cta={_(msg`Let me choose`)}
+            onPress={() => {
+              navigation.navigate('StarterPackWizard')
+            }}
+          />
+        </Prompt.Actions>
+      </Prompt.Outer>
+      <Prompt.Basic
+        control={followersDialogControl}
+        title={_(msg`Oops!`)}
+        description={_(
+          msg`You must be following at least seven other people to generate a starter pack.`,
+        )}
+        onConfirm={() => {}}
+        showCancel={false}
+      />
+      <Prompt.Basic
+        control={errorDialogControl}
+        title={_(msg`Oops!`)}
+        description={_(
+          msg`An error occurred while generating your starter pack. Want to try again?`,
+        )}
+        onConfirm={generate}
+        confirmButtonCta={_(msg`Retry`)}
+      />
+    </LinearGradientBackground>
+  )
+}
diff --git a/src/view/screens/Profile.tsx b/src/view/screens/Profile.tsx
index 677fe09f47..3a100bbb7e 100644
--- a/src/view/screens/Profile.tsx
+++ b/src/view/screens/Profile.tsx
@@ -453,6 +453,7 @@ function ProfileScreenLoaded({
           ? ({headerHeight, isFocused, scrollElRef}) => (
               <ProfileFeedgens
                 ref={feedsSectionRef}
+                isMe={isMe}
                 did={profile.did}
                 scrollElRef={scrollElRef as ListRef}
                 headerOffset={headerHeight}