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import { OrderState, SignedOrder } from '@0x/types';
import { LogEntryEvent } from 'ethereum-types';
export enum OrderWatcherError {
SubscriptionAlreadyPresent = 'SUBSCRIPTION_ALREADY_PRESENT',
SubscriptionNotFound = 'SUBSCRIPTION_NOT_FOUND',
}
export type EventWatcherCallback = (err: null | Error, log?: LogEntryEvent) => void;
/**
* orderExpirationCheckingIntervalMs: How often to check for expired orders. Default=50.
* eventPollingIntervalMs: How often to poll the Ethereum node for new events. Default=200.
* expirationMarginMs: Amount of time before order expiry that you'd like to be notified
* of an orders expiration. Default=0.
* cleanupJobIntervalMs: How often to run a cleanup job which revalidates all the orders. Default=1hr.
* isVerbose: Weather the order watcher should be verbose. Default=true.
*/
export interface OrderWatcherConfig {
orderExpirationCheckingIntervalMs: number;
eventPollingIntervalMs: number;
expirationMarginMs: number;
cleanupJobIntervalMs: number;
isVerbose: boolean;
}
export type OnOrderStateChangeCallback = (err: Error | null, orderState?: OrderState) => void;
export enum InternalOrderWatcherError {
NoAbiDecoder = 'NO_ABI_DECODER',
ZrxNotInTokenRegistry = 'ZRX_NOT_IN_TOKEN_REGISTRY',
WethNotInTokenRegistry = 'WETH_NOT_IN_TOKEN_REGISTRY',
}
export enum OrderWatcherAction {
// Actions initiated by the user.
GetStats = 'GET_STATS',
AddOrder = 'ADD_ORDER',
RemoveOrder = 'REMOVE_ORDER',
// These are spontaneous; they are primarily orderstate changes.
Update = 'UPDATE',
// `subscribe` and `unsubscribe` are methods of OrderWatcher, but we don't
// need to expose them to the WebSocket server user because the user implicitly
// subscribes and unsubscribes by connecting and disconnecting from the server.
}
// Users have to create a json object of this format and attach it to
// the data field of their WebSocket message to interact with the server.
export interface WebSocketRequest {
action: OrderWatcherAction;
signedOrder?: SignedOrder;
orderHash?: string;
}
// Users should expect a json object of this format in the data field
// of the WebSocket messages that the server sends out.
export interface WebSocketResponse {
action: OrderWatcherAction | null;
success: boolean;
result: any;
}
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