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import React from 'react'
import {Pressable, StyleSheet, View} from 'react-native'
import {observer} from 'mobx-react-lite'
import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
import ImageView from './ImageViewing'
import {useStores} from 'state/index'
import * as models from 'state/models/ui/shell'
import {shareImageModal, saveImageToMediaLibrary} from 'lib/media/manip'
import * as Toast from '../util/Toast'
import {Text} from '../util/text/Text'
import {s, colors} from 'lib/styles'
import {Button} from '../util/forms/Button'
import {isIOS} from 'platform/detection'
import * as MediaLibrary from 'expo-media-library'
export const Lightbox = observer(function Lightbox() {
const store = useStores()
const [isAltExpanded, setAltExpanded] = React.useState(false)
const [permissionResponse, requestPermission] = MediaLibrary.usePermissions()
const onClose = React.useCallback(() => {
store.shell.closeLightbox()
}, [store])
const saveImageToAlbumWithToasts = React.useCallback(
async (uri: string) => {
if (!permissionResponse || permissionResponse.granted === false) {
Toast.show('Permission to access camera roll is required.')
if (permissionResponse?.canAskAgain) {
requestPermission()
} else {
Toast.show(
'Permission to access camera roll was denied. Please enable it in your system settings.',
)
}
return
}
try {
await saveImageToMediaLibrary({uri})
Toast.show('Saved to your camera roll.')
} catch (e: any) {
Toast.show(`Failed to save image: ${String(e)}`)
}
},
[permissionResponse, requestPermission],
)
const LightboxFooter = React.useCallback(
({imageIndex}: {imageIndex: number}) => {
const lightbox = store.shell.activeLightbox
if (!lightbox) {
return null
}
let altText = ''
let uri = ''
if (lightbox.name === 'images') {
const opts = lightbox as models.ImagesLightbox
uri = opts.images[imageIndex].uri
altText = opts.images[imageIndex].alt || ''
} else if (lightbox.name === 'profile-image') {
const opts = lightbox as models.ProfileImageLightbox
uri = opts.profileView.avatar || ''
}
return (
<View style={[styles.footer]}>
{altText ? (
<Pressable
onPress={() => setAltExpanded(!isAltExpanded)}
accessibilityRole="button">
<Text
style={[s.gray3, styles.footerText]}
numberOfLines={isAltExpanded ? undefined : 3}>
{altText}
</Text>
</Pressable>
) : null}
<View style={styles.footerBtns}>
<Button
type="primary-outline"
style={styles.footerBtn}
onPress={() => saveImageToAlbumWithToasts(uri)}>
<FontAwesomeIcon icon={['far', 'floppy-disk']} style={s.white} />
<Text type="xl" style={s.white}>
Save
</Text>
</Button>
<Button
type="primary-outline"
style={styles.footerBtn}
onPress={() => shareImageModal({uri})}>
<FontAwesomeIcon icon="arrow-up-from-bracket" style={s.white} />
<Text type="xl" style={s.white}>
Share
</Text>
</Button>
</View>
</View>
)
},
[store.shell.activeLightbox, isAltExpanded, saveImageToAlbumWithToasts],
)
if (!store.shell.activeLightbox) {
return null
} else if (store.shell.activeLightbox.name === 'profile-image') {
const opts = store.shell.activeLightbox as models.ProfileImageLightbox
return (
<ImageView
images={[{uri: opts.profileView.avatar}]}
imageIndex={0}
visible
onRequestClose={onClose}
FooterComponent={LightboxFooter}
/>
)
} else if (store.shell.activeLightbox.name === 'images') {
const opts = store.shell.activeLightbox as models.ImagesLightbox
return (
<ImageView
images={opts.images.map(({uri}) => ({uri}))}
imageIndex={opts.index}
visible
onRequestClose={onClose}
FooterComponent={LightboxFooter}
/>
)
} else {
return null
}
})
const styles = StyleSheet.create({
footer: {
paddingTop: 16,
paddingBottom: isIOS ? 40 : 24,
paddingHorizontal: 24,
backgroundColor: '#000d',
},
footerText: {
paddingBottom: isIOS ? 20 : 16,
},
footerBtns: {
flexDirection: 'row',
justifyContent: 'center',
gap: 8,
},
footerBtn: {
flexDirection: 'row',
alignItems: 'center',
gap: 8,
backgroundColor: 'transparent',
borderColor: colors.white,
},
})
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