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import React, {useCallback, useMemo, useRef} from 'react'
import {LayoutAnimation, StyleProp, TextStyle, View} from 'react-native'
import {ChatBskyConvoDefs} from '@atproto-labs/api'
import {msg} from '@lingui/macro'
import {useLingui} from '@lingui/react'
import {useSession} from '#/state/session'
import {TimeElapsed} from 'view/com/util/TimeElapsed'
import {atoms as a, useTheme} from '#/alf'
import {ActionsWrapper} from '#/components/dms/ActionsWrapper'
import {Text} from '#/components/Typography'
export let MessageItem = ({
item,
next,
pending,
}: {
item: ChatBskyConvoDefs.MessageView
next:
| ChatBskyConvoDefs.MessageView
| ChatBskyConvoDefs.DeletedMessageView
| null
pending?: boolean
}): React.ReactNode => {
const t = useTheme()
const {currentAccount} = useSession()
const isFromSelf = item.sender?.did === currentAccount?.did
const isNextFromSelf =
ChatBskyConvoDefs.isMessageView(next) &&
next.sender?.did === currentAccount?.did
const isLastInGroup = useMemo(() => {
// if the next message is from a different sender, then it's the last in the group
if (isFromSelf ? !isNextFromSelf : isNextFromSelf) {
return true
}
// or, if there's a 3 minute gap between this message and the next
if (ChatBskyConvoDefs.isMessageView(next)) {
const thisDate = new Date(item.sentAt)
const nextDate = new Date(next.sentAt)
const diff = nextDate.getTime() - thisDate.getTime()
// 3 minutes
return diff > 3 * 60 * 1000
}
return true
}, [item, next, isFromSelf, isNextFromSelf])
const lastInGroupRef = useRef(isLastInGroup)
if (lastInGroupRef.current !== isLastInGroup) {
LayoutAnimation.configureNext(LayoutAnimation.Presets.easeInEaseOut)
lastInGroupRef.current = isLastInGroup
}
return (
<View>
<ActionsWrapper isFromSelf={isFromSelf} message={item}>
<View
style={[
a.py_sm,
a.px_lg,
a.my_2xs,
a.rounded_md,
{
backgroundColor: isFromSelf
? pending
? t.palette.primary_200
: t.palette.primary_500
: t.palette.contrast_50,
borderRadius: 17,
},
isFromSelf
? {borderBottomRightRadius: isLastInGroup ? 2 : 17}
: {borderBottomLeftRadius: isLastInGroup ? 2 : 17},
]}>
<Text
style={[
a.text_md,
a.leading_snug,
isFromSelf && {color: t.palette.white},
]}>
{item.text}
</Text>
</View>
</ActionsWrapper>
<MessageItemMetadata
message={item}
isLastInGroup={isLastInGroup}
style={isFromSelf ? a.text_right : a.text_left}
/>
</View>
)
}
MessageItem = React.memo(MessageItem)
let MessageItemMetadata = ({
message,
isLastInGroup,
style,
}: {
message: ChatBskyConvoDefs.MessageView
isLastInGroup: boolean
style: StyleProp<TextStyle>
}): React.ReactNode => {
const t = useTheme()
const {_} = useLingui()
const relativeTimestamp = useCallback(
(timestamp: string) => {
const date = new Date(timestamp)
const now = new Date()
const time = new Intl.DateTimeFormat(undefined, {
hour: 'numeric',
minute: 'numeric',
hour12: true,
}).format(date)
const diff = now.getTime() - date.getTime()
// if under 1 minute
if (diff < 1000 * 60) {
return _(msg`Now`)
}
// if in the last day
if (localDateString(now) === localDateString(date)) {
return time
}
// if yesterday
const yesterday = new Date(now)
yesterday.setDate(yesterday.getDate() - 1)
if (localDateString(yesterday) === localDateString(date)) {
return _(msg`Yesterday, ${time}`)
}
return new Intl.DateTimeFormat(undefined, {
hour: 'numeric',
minute: 'numeric',
hour12: true,
day: 'numeric',
month: 'numeric',
year: 'numeric',
}).format(date)
},
[_],
)
if (!isLastInGroup) {
return null
}
return (
<TimeElapsed timestamp={message.sentAt} timeToString={relativeTimestamp}>
{({timeElapsed}) => (
<Text
style={[
t.atoms.text_contrast_medium,
a.text_xs,
a.mt_2xs,
a.mb_lg,
style,
]}>
{timeElapsed}
</Text>
)}
</TimeElapsed>
)
}
MessageItemMetadata = React.memo(MessageItemMetadata)
function localDateString(date: Date) {
// can't use toISOString because it should be in local time
const mm = date.getMonth()
const dd = date.getDate()
const yyyy = date.getFullYear()
// not padding with 0s because it's not necessary, it's just used for comparison
return `${yyyy}-${mm}-${dd}`
}
|
