src/lib/media/picker.shared.ts


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import {
  ImagePickerOptions,
  launchImageLibraryAsync,
  MediaTypeOptions,
} from 'expo-image-picker'
import {getDataUriSize} from './util'
import * as Toast from 'view/com/util/Toast'

export async function openPicker(opts?: ImagePickerOptions) {
  const response = await launchImageLibraryAsync({
    exif: false,
    mediaTypes: MediaTypeOptions.Images,
    quality: 1,
    ...opts,
  })

  if (response.assets && response.assets.length > 4) {
    Toast.show('You may only select up to 4 images')
  }

  return (response.assets ?? [])
    .slice(0, 4)
    .filter(asset => {
      if (asset.mimeType?.startsWith('image/')) return true
      Toast.show('Only image files are supported')
      return false
    })
    .map(image => ({
      mime: 'image/jpeg',
      height: image.height,
      width: image.width,
      path: image.uri,
      size: getDataUriSize(image.uri),
    }))
}