Add "Who can reply" controls [WIP] (#1954)

* Add threadgating

* UI improvements

* More ui work

* Remove comment

* Tweak colors

* Add missing keys

* Tweak sizing

* Only show composer option on non-reply

* Flex wrap fix

* Move the threadgate control to the top of the composer

src/view/com/modals/Threadgate.tsx

@@ -0,0 +1,204 @@
+import React, {useState} from 'react'
+import {
+  Pressable,
+  StyleProp,
+  StyleSheet,
+  TouchableOpacity,
+  View,
+  ViewStyle,
+} from 'react-native'
+import {Text} from '../util/text/Text'
+import {s, colors} from 'lib/styles'
+import {usePalette} from 'lib/hooks/usePalette'
+import {isWeb} from 'platform/detection'
+import {ScrollView} from 'view/com/modals/util'
+import {Trans, msg} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
+import {useModalControls} from '#/state/modals'
+import {ThreadgateSetting} from '#/state/queries/threadgate'
+import {useMyListsQuery} from '#/state/queries/my-lists'
+import isEqual from 'lodash.isequal'
+import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
+
+export const snapPoints = ['60%']
+
+export function Component({
+  settings,
+  onChange,
+}: {
+  settings: ThreadgateSetting[]
+  onChange: (settings: ThreadgateSetting[]) => void
+}) {
+  const pal = usePalette('default')
+  const {closeModal} = useModalControls()
+  const [selected, setSelected] = useState(settings)
+  const {_} = useLingui()
+  const {data: lists} = useMyListsQuery('curate')
+
+  const onPressEverybody = () => {
+    setSelected([])
+    onChange([])
+  }
+
+  const onPressNobody = () => {
+    setSelected([{type: 'nobody'}])
+    onChange([{type: 'nobody'}])
+  }
+
+  const onPressAudience = (setting: ThreadgateSetting) => {
+    // remove nobody
+    let newSelected = selected.filter(v => v.type !== 'nobody')
+    // toggle
+    const i = newSelected.findIndex(v => isEqual(v, setting))
+    if (i === -1) {
+      newSelected.push(setting)
+    } else {
+      newSelected.splice(i, 1)
+    }
+    setSelected(newSelected)
+    onChange(newSelected)
+  }
+
+  return (
+    <View testID="threadgateModal" style={[pal.view, styles.container]}>
+      <View style={styles.titleSection}>
+        <Text type="title-lg" style={[pal.text, styles.title]}>
+          <Trans>Who can reply</Trans>
+        </Text>
+      </View>
+
+      <ScrollView>
+        <Text style={[pal.text, styles.description]}>
+          Choose "Everybody" or "Nobody"
+        </Text>
+        <View style={{flexDirection: 'row', gap: 6, paddingHorizontal: 6}}>
+          <Selectable
+            label={_(msg`Everybody`)}
+            isSelected={selected.length === 0}
+            onPress={onPressEverybody}
+            style={{flex: 1}}
+          />
+          <Selectable
+            label={_(msg`Nobody`)}
+            isSelected={!!selected.find(v => v.type === 'nobody')}
+            onPress={onPressNobody}
+            style={{flex: 1}}
+          />
+        </View>
+        <Text style={[pal.text, styles.description]}>
+          Or combine these options:
+        </Text>
+        <View style={{flexDirection: 'column', gap: 4, paddingHorizontal: 6}}>
+          <Selectable
+            label={_(msg`Mentioned users`)}
+            isSelected={!!selected.find(v => v.type === 'mention')}
+            onPress={() => onPressAudience({type: 'mention'})}
+          />
+          <Selectable
+            label={_(msg`Followed users`)}
+            isSelected={!!selected.find(v => v.type === 'following')}
+            onPress={() => onPressAudience({type: 'following'})}
+          />
+          {lists?.length
+            ? lists.map(list => (
+                <Selectable
+                  key={list.uri}
+                  label={_(msg`Users in "${list.name}"`)}
+                  isSelected={
+                    !!selected.find(
+                      v => v.type === 'list' && v.list === list.uri,
+                    )
+                  }
+                  onPress={() =>
+                    onPressAudience({type: 'list', list: list.uri})
+                  }
+                />
+              ))
+            : null}
+        </View>
+      </ScrollView>
+
+      <View style={[styles.btnContainer, pal.borderDark]}>
+        <TouchableOpacity
+          testID="confirmBtn"
+          onPress={() => {
+            closeModal()
+          }}
+          style={styles.btn}
+          accessibilityRole="button"
+          accessibilityLabel={_(msg`Done`)}
+          accessibilityHint="">
+          <Text style={[s.white, s.bold, s.f18]}>
+            <Trans>Done</Trans>
+          </Text>
+        </TouchableOpacity>
+      </View>
+    </View>
+  )
+}
+
+function Selectable({
+  label,
+  isSelected,
+  onPress,
+  style,
+}: {
+  label: string
+  isSelected: boolean
+  onPress: () => void
+  style?: StyleProp<ViewStyle>
+}) {
+  const pal = usePalette(isSelected ? 'inverted' : 'default')
+  return (
+    <Pressable
+      onPress={onPress}
+      accessibilityLabel={label}
+      accessibilityHint=""
+      style={[styles.selectable, pal.border, pal.view, style]}>
+      <Text type="xl" style={[pal.text]}>
+        {label}
+      </Text>
+      {isSelected ? (
+        <FontAwesomeIcon icon="check" color={pal.colors.text} size={18} />
+      ) : null}
+    </Pressable>
+  )
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    paddingBottom: isWeb ? 0 : 40,
+  },
+  titleSection: {
+    paddingTop: isWeb ? 0 : 4,
+  },
+  title: {
+    textAlign: 'center',
+    fontWeight: '600',
+  },
+  description: {
+    textAlign: 'center',
+    paddingVertical: 16,
+  },
+  selectable: {
+    flexDirection: 'row',
+    justifyContent: 'space-between',
+    paddingHorizontal: 18,
+    paddingVertical: 16,
+    borderWidth: 1,
+    borderRadius: 6,
+  },
+  btn: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    justifyContent: 'center',
+    borderRadius: 32,
+    padding: 14,
+    backgroundColor: colors.blue3,
+  },
+  btnContainer: {
+    paddingTop: 20,
+    paddingHorizontal: 20,
+  },
+})