/** Size (bytes) of each chunk when streaming a file over RTCDataChannel. */
export const FILE_CHUNK_SIZE_BYTES = 64 * 1024; // 64 KB

/**
 * EWMA smoothing weight for the previous speed estimate.
 * The complementary weight is applied to the latest sample.
 */
export const ATTACHMENT_TRANSFER_EWMA_PREVIOUS_WEIGHT = 0.7;
export const ATTACHMENT_TRANSFER_EWMA_CURRENT_WEIGHT = 1 - ATTACHMENT_TRANSFER_EWMA_PREVIOUS_WEIGHT;

/** Fallback MIME type when none is provided by the sender. */
export const DEFAULT_ATTACHMENT_MIME_TYPE = 'application/octet-stream';

/** localStorage key used by the legacy attachment store during migration. */
export const LEGACY_ATTACHMENTS_STORAGE_KEY = 'metoyou_attachments';

/** User-facing error when no peers are available for a request. */
export const NO_CONNECTED_PEERS_REQUEST_ERROR = 'No connected peers are available to provide this file right now.';

/** User-facing error when connected peers cannot provide a requested file. */
export const FILE_NOT_FOUND_REQUEST_ERROR = 'The connected peers do not have this file right now.';