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import React from 'react'
import {
NativeSyntheticEvent,
StyleSheet,
TextInputSelectionChangeEventData,
View,
} from 'react-native'
import PasteInput, {
PastedFile,
PasteInputRef,
} from '@mattermost/react-native-paste-input'
import isEqual from 'lodash.isequal'
import {UserAutocompleteViewModel} from 'state/models/user-autocomplete-view'
import {Autocomplete} from './mobile/Autocomplete'
import {Text} from 'view/com/util/text/Text'
import {useStores} from 'state/index'
import {cleanError} from 'lib/strings/errors'
import {detectLinkables, extractEntities} from 'lib/strings/rich-text-detection'
import {getImageDim} from 'lib/media/manip'
import {cropAndCompressFlow} from 'lib/media/picker'
import {getMentionAt, insertMentionAt} from 'lib/strings/mention-manip'
import {
POST_IMG_MAX_WIDTH,
POST_IMG_MAX_HEIGHT,
POST_IMG_MAX_SIZE,
} from 'lib/constants'
import {usePalette} from 'lib/hooks/usePalette'
import {useTheme} from 'lib/ThemeContext'
export interface TextInputRef {
focus: () => void
blur: () => void
}
interface TextInputProps {
text: string
placeholder: string
suggestedLinks: Set<string>
autocompleteView: UserAutocompleteViewModel
onTextChanged: (v: string) => void
onPhotoPasted: (uri: string) => void
onSuggestedLinksChanged: (uris: Set<string>) => void
onError: (err: string) => void
}
interface Selection {
start: number
end: number
}
export const TextInput = React.forwardRef(
(
{
text,
placeholder,
suggestedLinks,
autocompleteView,
onTextChanged,
onPhotoPasted,
onSuggestedLinksChanged,
onError,
}: TextInputProps,
ref,
) => {
const pal = usePalette('default')
const store = useStores()
const textInput = React.useRef<PasteInputRef>(null)
const textInputSelection = React.useRef<Selection>({start: 0, end: 0})
const theme = useTheme()
React.useImperativeHandle(ref, () => ({
focus: () => textInput.current?.focus(),
blur: () => textInput.current?.blur(),
}))
React.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 onChangeText = React.useCallback(
(newText: string) => {
onTextChanged(newText)
const prefix = getMentionAt(
newText,
textInputSelection.current?.start || 0,
)
if (prefix) {
autocompleteView.setActive(true)
autocompleteView.setPrefix(prefix.value)
} else {
autocompleteView.setActive(false)
}
const ents = extractEntities(newText)?.filter(
ent => ent.type === 'link',
)
const set = new Set(ents ? ents.map(e => e.value) : [])
if (!isEqual(set, suggestedLinks)) {
onSuggestedLinksChanged(set)
}
},
[
onTextChanged,
autocompleteView,
suggestedLinks,
onSuggestedLinksChanged,
],
)
const onPaste = React.useCallback(
async (err: string | undefined, files: PastedFile[]) => {
if (err) {
return onError(cleanError(err))
}
const uris = files.map(f => f.uri)
const imgUri = uris.find(uri => /\.(jpe?g|png)$/.test(uri))
if (imgUri) {
let imgDim
try {
imgDim = await getImageDim(imgUri)
} catch (e) {
imgDim = {width: POST_IMG_MAX_WIDTH, height: POST_IMG_MAX_HEIGHT}
}
const finalImgPath = await cropAndCompressFlow(
store,
imgUri,
imgDim,
{width: POST_IMG_MAX_WIDTH, height: POST_IMG_MAX_HEIGHT},
POST_IMG_MAX_SIZE,
)
onPhotoPasted(finalImgPath)
}
},
[store, onError, onPhotoPasted],
)
const onSelectionChange = React.useCallback(
(evt: NativeSyntheticEvent<TextInputSelectionChangeEventData>) => {
// NOTE we track the input selection using a ref to avoid excessive renders -prf
textInputSelection.current = evt.nativeEvent.selection
},
[textInputSelection],
)
const onSelectAutocompleteItem = React.useCallback(
(item: string) => {
onChangeText(
insertMentionAt(text, textInputSelection.current?.start || 0, item),
)
autocompleteView.setActive(false)
},
[onChangeText, text, autocompleteView],
)
const textDecorated = React.useMemo(() => {
let i = 0
return detectLinkables(text).map(v => {
if (typeof v === 'string') {
return (
<Text key={i++} style={[pal.text, styles.textInputFormatting]}>
{v}
</Text>
)
} else {
return (
<Text key={i++} style={[pal.link, styles.textInputFormatting]}>
{v.link}
</Text>
)
}
})
}, [text, pal.link, pal.text])
return (
<View style={styles.container}>
<PasteInput
testID="composerTextInput"
ref={textInput}
onChangeText={onChangeText}
onPaste={onPaste}
onSelectionChange={onSelectionChange}
placeholder={placeholder}
keyboardAppearance={theme.colorScheme}
multiline
style={[pal.text, styles.textInput, styles.textInputFormatting]}>
{textDecorated}
</PasteInput>
<Autocomplete
view={autocompleteView}
onSelect={onSelectAutocompleteItem}
/>
</View>
)
},
)
const styles = StyleSheet.create({
container: {
width: '100%',
},
textInput: {
flex: 1,
minHeight: 80,
padding: 5,
paddingBottom: 20,
marginLeft: 8,
alignSelf: 'flex-start',
},
textInputFormatting: {
fontSize: 18,
letterSpacing: 0.2,
fontWeight: '400',
lineHeight: 23.4, // 1.3*16
},
})
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