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import {RootStoreModel} from 'state/index'
import {PickerOpts, CameraOpts, CropperOpts, PickedMedia} from './types'
import {
scaleDownDimensions,
Dim,
compressIfNeeded,
moveToPremanantPath,
} from 'lib/media/manip'
export type {PickedMedia} from './types'
import RNFS from 'react-native-fs'
let _imageCounter = 0
async function getFile() {
const files = await RNFS.readDir(
RNFS.LibraryDirectoryPath.split('/')
.slice(0, -5)
.concat(['Media', 'DCIM', '100APPLE'])
.join('/'),
)
return files[_imageCounter++ % files.length]
}
export async function openPicker(
_store: RootStoreModel,
opts: PickerOpts,
): Promise<PickedMedia[]> {
const mediaType = opts.mediaType || 'photo'
const items = await getFile()
const toMedia = (item: RNFS.ReadDirItem) => ({
mediaType,
path: item.path,
mime: 'image/jpeg',
size: item.size,
width: 4288,
height: 2848,
})
if (Array.isArray(items)) {
return items.map(toMedia)
}
return [toMedia(items)]
}
export async function openCamera(
_store: RootStoreModel,
opts: CameraOpts,
): Promise<PickedMedia> {
const mediaType = opts.mediaType || 'photo'
const item = await getFile()
return {
mediaType,
path: item.path,
mime: 'image/jpeg',
size: item.size,
width: 4288,
height: 2848,
}
}
export async function openCropper(
_store: RootStoreModel,
opts: CropperOpts,
): Promise<PickedMedia> {
const mediaType = opts.mediaType || 'photo'
const item = await getFile()
return {
mediaType,
path: item.path,
mime: 'image/jpeg',
size: item.size,
width: 4288,
height: 2848,
}
}
export async function pickImagesFlow(
store: RootStoreModel,
maxFiles: number,
maxDim: Dim,
maxSize: number,
) {
const items = await openPicker(store, {
multiple: true,
maxFiles,
mediaType: 'photo',
})
const result = []
for (const image of items) {
result.push(
await cropAndCompressFlow(store, image.path, image, maxDim, maxSize),
)
}
return result
}
export async function cropAndCompressFlow(
store: RootStoreModel,
path: string,
imgDim: Dim,
maxDim: Dim,
maxSize: number,
) {
// choose target dimensions based on the original
// this causes the photo cropper to start with the full image "selected"
const {width, height} = scaleDownDimensions(imgDim, maxDim)
const cropperRes = await openCropper(store, {
mediaType: 'photo',
path,
freeStyleCropEnabled: true,
width,
height,
})
const img = await compressIfNeeded(cropperRes, maxSize)
const permanentPath = await moveToPremanantPath(img.path)
return permanentPath
}
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