export interface DeterminateFileProcessing {
  mode: 'determinate'
  message: string
  value: number
}
export interface IndeterminateFileProcessing {
  mode: 'indeterminate'
  message?: string
  value?: 0
}
export type FileProcessingInfo =
  | IndeterminateFileProcessing
  | DeterminateFileProcessing

// TODO explore whether all of these properties need to be optional
interface FileProgressBase {
  uploadComplete?: boolean
  percentage?: number // undefined if we don't know the percentage (e.g. for files with `bytesTotal` null)
  // note that Companion will send `bytesTotal` 0 if unknown size (not `null`).
  // this is not perfect because some files can actually have a size of 0,
  // and then we might think those files have an unknown size
  // todo we should change this in companion
  bytesTotal: number | null
  preprocess?: FileProcessingInfo
  postprocess?: FileProcessingInfo
}

// FileProgress is either started or not started. We want to make sure TS doesn't
// let us mix the two cases, and for that effect, we have one type for each case:
export type FileProgressStarted = FileProgressBase & {
  uploadStarted: number
  bytesUploaded: number
}
export type FileProgressNotStarted = FileProgressBase & {
  uploadStarted: null
  bytesUploaded: false
}
export type FileProgress = FileProgressStarted | FileProgressNotStarted