bsky-app/src/view/com/composer/ComposePost.tsx
2022-12-14 15:35:15 -06:00

396 lines
11 KiB
TypeScript

import React, {useEffect, useMemo, useRef, useState} from 'react'
import {observer} from 'mobx-react-lite'
import {
ActivityIndicator,
KeyboardAvoidingView,
SafeAreaView,
StyleSheet,
Text,
TextInput,
TouchableOpacity,
View,
} from 'react-native'
import LinearGradient from 'react-native-linear-gradient'
import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
import {UserAutocompleteViewModel} from '../../../state/models/user-autocomplete-view'
import {Autocomplete} from './Autocomplete'
import * as Toast from '../util/Toast'
// @ts-ignore no type definition -prf
import ProgressCircle from 'react-native-progress/Circle'
// @ts-ignore no type definition -prf
import ProgressPie from 'react-native-progress/Pie'
import {TextLink} from '../util/Link'
import {UserAvatar} from '../util/UserAvatar'
import {useStores} from '../../../state'
import * as apilib from '../../../state/lib/api'
import {ComposerOpts} from '../../../state/models/shell-ui'
import {s, colors, gradients} from '../../lib/styles'
import {detectLinkables} from '../../../lib/strings'
import {UserLocalPhotosModel} from '../../../state/models/user-local-photos'
import {PhotoCarouselPicker} from './PhotoCarouselPicker'
import {SelectedPhoto} from './SelectedPhoto'
const MAX_TEXT_LENGTH = 256
const DANGER_TEXT_LENGTH = MAX_TEXT_LENGTH
export const ComposePost = observer(function ComposePost({
replyTo,
onPost,
onClose,
}: {
replyTo?: ComposerOpts['replyTo']
onPost?: ComposerOpts['onPost']
onClose: () => void
}) {
const store = useStores()
const textInput = useRef<TextInput>(null)
const [isProcessing, setIsProcessing] = useState(false)
const [processingState, setProcessingState] = useState('')
const [error, setError] = useState('')
const [text, setText] = useState('')
const [selectedPhotos, setSelectedPhotos] = useState<string[]>([])
const autocompleteView = useMemo<UserAutocompleteViewModel>(
() => new UserAutocompleteViewModel(store),
[store],
)
const localPhotos = useMemo<UserLocalPhotosModel>(
() => new UserLocalPhotosModel(store),
[store],
)
useEffect(() => {
autocompleteView.setup()
localPhotos.setup()
}, [autocompleteView, localPhotos])
useEffect(() => {
// HACK
// wait a moment before focusing the input to resolve some layout bugs with the keyboard-avoiding-view
// -prf
let to: NodeJS.Timeout | undefined
if (textInput.current) {
to = setTimeout(() => {
textInput.current?.focus()
}, 250)
}
return () => {
if (to) {
clearTimeout(to)
}
}
}, [])
const onSelectPhotos = (photos: string[]) => {
setSelectedPhotos(photos)
}
const onChangeText = (newText: string) => {
setText(newText)
const prefix = extractTextAutocompletePrefix(newText)
if (typeof prefix === 'string') {
autocompleteView.setActive(true)
autocompleteView.setPrefix(prefix)
} else {
autocompleteView.setActive(false)
}
}
const onPressCancel = () => {
onClose()
}
const onPressPublish = async () => {
if (isProcessing) {
return
}
if (text.length > MAX_TEXT_LENGTH) {
return
}
setError('')
if (text.trim().length === 0) {
setError('Did you want to say anything?')
return false
}
setIsProcessing(true)
try {
await apilib.post(
store,
text,
replyTo?.uri,
selectedPhotos,
autocompleteView.knownHandles,
setProcessingState,
)
} catch (e: any) {
setError(e.message)
setIsProcessing(false)
return
}
store.me.mainFeed.loadLatest()
onPost?.()
onClose()
Toast.show(`Your ${replyTo ? 'reply' : 'post'} has been published`)
}
const onSelectAutocompleteItem = (item: string) => {
setText(replaceTextAutocompletePrefix(text, item))
autocompleteView.setActive(false)
}
const canPost = text.length <= MAX_TEXT_LENGTH
const progressColor = text.length > DANGER_TEXT_LENGTH ? '#e60000' : undefined
const selectTextInputLayout =
selectedPhotos.length !== 0
? styles.textInputLayoutWithPhoto
: styles.textInputLayoutWithoutPhoto
const selectTextInputPlaceholder = replyTo
? 'Write your reply'
: selectedPhotos.length !== 0
? 'Write a comment'
: "What's up?"
const textDecorated = useMemo(() => {
let i = 0
return detectLinkables(text).map(v => {
if (typeof v === 'string') {
return v
} else {
return (
<Text key={i++} style={{color: colors.blue3}}>
{v.link}
</Text>
)
}
})
}, [text])
return (
<KeyboardAvoidingView behavior="padding" style={styles.outer}>
<SafeAreaView style={s.flex1}>
<View style={styles.topbar}>
<TouchableOpacity onPress={onPressCancel}>
<Text style={[s.blue3, s.f18]}>Cancel</Text>
</TouchableOpacity>
<View style={s.flex1} />
{isProcessing ? (
<View style={styles.postBtn}>
<ActivityIndicator />
</View>
) : canPost ? (
<TouchableOpacity onPress={onPressPublish}>
<LinearGradient
colors={[gradients.primary.start, gradients.primary.end]}
start={{x: 0, y: 0}}
end={{x: 1, y: 1}}
style={styles.postBtn}>
<Text style={[s.white, s.f16, s.bold]}>
{replyTo ? 'Reply' : 'Post'}
</Text>
</LinearGradient>
</TouchableOpacity>
) : (
<View style={[styles.postBtn, {backgroundColor: colors.gray1}]}>
<Text style={[s.gray5, s.f16, s.bold]}>Post</Text>
</View>
)}
</View>
{isProcessing ? (
<View style={styles.processingLine}>
<Text>{processingState}</Text>
</View>
) : undefined}
{error !== '' && (
<View style={styles.errorLine}>
<View style={styles.errorIcon}>
<FontAwesomeIcon
icon="exclamation"
style={{color: colors.red4}}
size={10}
/>
</View>
<Text style={[s.red4, s.flex1]}>{error}</Text>
</View>
)}
{replyTo ? (
<View style={styles.replyToLayout}>
<UserAvatar
handle={replyTo.author.handle}
displayName={replyTo.author.displayName}
avatar={replyTo.author.avatar}
size={50}
/>
<View style={styles.replyToPost}>
<TextLink
href={`/profile/${replyTo.author.handle}`}
text={replyTo.author.displayName || replyTo.author.handle}
style={[s.f16, s.bold]}
/>
<Text style={[s.f16, s['lh16-1.3']]} numberOfLines={6}>
{replyTo.text}
</Text>
</View>
</View>
) : undefined}
<View style={[styles.textInputLayout, selectTextInputLayout]}>
<UserAvatar
handle={store.me.handle || ''}
displayName={store.me.displayName}
avatar={store.me.avatar}
size={50}
/>
<TextInput
ref={textInput}
multiline
scrollEnabled
onChangeText={(text: string) => onChangeText(text)}
placeholder={selectTextInputPlaceholder}
style={styles.textInput}>
{textDecorated}
</TextInput>
</View>
<SelectedPhoto
selectedPhotos={selectedPhotos}
onSelectPhotos={onSelectPhotos}
/>
{localPhotos.photos != null && selectedPhotos.length < 4 && (
<PhotoCarouselPicker
selectedPhotos={selectedPhotos}
onSelectPhotos={onSelectPhotos}
localPhotos={localPhotos}
/>
)}
<View style={styles.bottomBar}>
<View style={s.flex1} />
<Text style={[s.mr10, {color: progressColor}]}>
{MAX_TEXT_LENGTH - text.length}
</Text>
<View>
{text.length > DANGER_TEXT_LENGTH ? (
<ProgressPie
size={30}
borderWidth={4}
borderColor={progressColor}
color={progressColor}
progress={Math.min(
(text.length - MAX_TEXT_LENGTH) / MAX_TEXT_LENGTH,
1,
)}
/>
) : (
<ProgressCircle
size={30}
borderWidth={1}
borderColor={colors.gray2}
color={progressColor}
progress={text.length / MAX_TEXT_LENGTH}
/>
)}
</View>
</View>
<Autocomplete
active={autocompleteView.isActive}
items={autocompleteView.suggestions}
onSelect={onSelectAutocompleteItem}
/>
</SafeAreaView>
</KeyboardAvoidingView>
)
})
const atPrefixRegex = /@([a-z0-9\.]*)$/i
function extractTextAutocompletePrefix(text: string) {
const match = atPrefixRegex.exec(text)
if (match) {
return match[1]
}
return undefined
}
function replaceTextAutocompletePrefix(text: string, item: string) {
return text.replace(atPrefixRegex, `@${item} `)
}
const styles = StyleSheet.create({
outer: {
flexDirection: 'column',
backgroundColor: '#fff',
padding: 15,
height: '100%',
},
topbar: {
flexDirection: 'row',
alignItems: 'center',
paddingTop: 10,
paddingBottom: 10,
paddingHorizontal: 5,
height: 55,
},
postBtn: {
borderRadius: 20,
paddingHorizontal: 20,
paddingVertical: 6,
},
processingLine: {
backgroundColor: colors.gray1,
borderRadius: 6,
paddingHorizontal: 8,
paddingVertical: 6,
marginBottom: 6,
},
errorLine: {
flexDirection: 'row',
backgroundColor: colors.red1,
borderRadius: 6,
paddingHorizontal: 8,
paddingVertical: 6,
marginVertical: 6,
},
errorIcon: {
borderWidth: 1,
borderColor: colors.red4,
color: colors.red4,
borderRadius: 30,
width: 16,
height: 16,
alignItems: 'center',
justifyContent: 'center',
marginRight: 5,
},
textInputLayoutWithPhoto: {
flexWrap: 'wrap',
},
textInputLayoutWithoutPhoto: {
flex: 1,
},
textInputLayout: {
flexDirection: 'row',
borderTopWidth: 1,
borderTopColor: colors.gray2,
paddingTop: 16,
},
textInput: {
flex: 1,
padding: 5,
fontSize: 18,
marginLeft: 8,
},
replyToLayout: {
flexDirection: 'row',
borderTopWidth: 1,
borderTopColor: colors.gray2,
paddingTop: 16,
paddingBottom: 16,
},
replyToPost: {
flex: 1,
paddingLeft: 13,
paddingRight: 8,
},
bottomBar: {
flexDirection: 'row',
paddingVertical: 10,
paddingRight: 5,
alignItems: 'center',
borderTopWidth: 1,
borderTopColor: colors.gray2,
},
})