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import {Image as RNImage} from 'react-native-image-crop-picker'
import {RootStoreModel} from 'state/index'
import {compressAndResizeImageForPost} from 'lib/media/manip'
import {makeAutoObservable, runInAction} from 'mobx'
import {openCropper} from 'lib/media/picker'
import {POST_IMG_MAX} from 'lib/constants'
import {scaleDownDimensions} from 'lib/media/util'
import {openAltTextModal} from 'lib/media/alt-text'
// TODO: EXIF embed
// Cases to consider: ExternalEmbed
export class ImageModel implements RNImage {
path: string
mime = 'image/jpeg'
width: number
height: number
size: number
altText?: string = undefined
cropped?: RNImage = undefined
compressed?: RNImage = undefined
scaledWidth: number = POST_IMG_MAX.width
scaledHeight: number = POST_IMG_MAX.height
constructor(public rootStore: RootStoreModel, image: RNImage) {
makeAutoObservable(this, {
rootStore: false,
})
this.path = image.path
this.width = image.width
this.height = image.height
this.size = image.size
this.calcScaledDimensions()
}
calcScaledDimensions() {
const {width, height} = scaleDownDimensions(
{width: this.width, height: this.height},
POST_IMG_MAX,
)
this.scaledWidth = width
this.scaledHeight = height
}
async setAltText() {
try {
const altText = await openAltTextModal(this.rootStore)
runInAction(() => {
this.altText = altText
})
} catch (err) {
this.rootStore.log.error('Failed to set alt text', err)
}
}
async crop() {
try {
const cropped = await openCropper(this.rootStore, {
mediaType: 'photo',
path: this.path,
freeStyleCropEnabled: true,
width: this.scaledWidth,
height: this.scaledHeight,
})
runInAction(() => {
this.cropped = cropped
})
} catch (err) {
this.rootStore.log.error('Failed to crop photo', err)
}
this.compress()
}
async compress() {
try {
const {width, height} = scaleDownDimensions(
this.cropped
? {width: this.cropped.width, height: this.cropped.height}
: {width: this.width, height: this.height},
POST_IMG_MAX,
)
const compressed = await compressAndResizeImageForPost({
...(this.cropped === undefined ? this : this.cropped),
width,
height,
})
runInAction(() => {
this.compressed = compressed
})
} catch (err) {
this.rootStore.log.error('Failed to compress photo', err)
}
}
}
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