import { Room } from 'matrix-js-sdk';
import { TUploadItem } from '../state/room/roomInputDrafts';
import { encryptFile } from './matrix';
import { safeFile } from './mimeTypes';
import { fulfilledPromiseSettledResult } from './common';

/**
 * Files → composer upload items for `room`, encrypting first when the room
 * is E2EE. Shared by the composer's pick/drop/paste paths and the PWA share
 * target (#155).
 */
export async function filesToUploadItems(room: Room, files: File[]): Promise<TUploadItem[]> {
  const safeFiles = files.map(safeFile);
  const metadata = { markedAsSpoiler: false };
  if (room.hasEncryptionStateEvent()) {
    const encrypted = fulfilledPromiseSettledResult(
      await Promise.allSettled(safeFiles.map((f) => encryptFile(f))),
    );
    return encrypted.map((ef) => ({ ...ef, metadata }));
  }
  return safeFiles.map((f) => ({ file: f, originalFile: f, encInfo: undefined, metadata }));
}