enum UserOrderType {
  BUY = 'BUY',
  SELL = 'SELL'
}

enum RadarOrderType {
  BID = 'BID',
  ASK = 'ASK'
}

enum RadarOrderState {
  OPEN = 'OPEN',
  FILLED = 'FILLED',
  CANCELED = 'CANCELLED',
  EXPIRED = 'EXPIRED',
  UNFUNDED = 'UNFUNDED'
}

enum WebsocketAction {
  FILL = 'FILL',
  NEW = 'NEW',
  CANCEL = 'CANCEL',
  REMOVE = 'REMOVE'
}

enum WebsocketRequestTopic {
  BOOK = 'BOOK',
  TICKER = 'TICKER',
  CANDLE = 'CANDLE'
}

enum WebsocketRequestType {
  SUBSCRIBE = 'SUBSCRIBE',
  UNSUBSCRIBE = 'UNSUBSCRIBE'
}

interface RadarToken {
  address: string;
  symbol: string;
  name: string;
  decimals: number;
  zeroex_official: boolean;
  active: boolean;
  createdDate: string;
  quote: boolean;
}

interface RadarTicker {
  transactionHash: string; // Last trade tx hash
  price: BigNumber; // Last trade price
  size: BigNumber; // Last trade size (in quote)
  timestamp: number; // Timestamp of last trade
  bestBid: BigNumber; // Best bid on the book
  bestAsk: BigNumber; // Best ask on the book
  spreadPercentage: BigNumber; // The bid-ask spread percentage
}

interface RadarStats {
  numBidsWithinRange: number; // Number of bids within a defined range (Example: Within 20% of the best bid)
  numAsksWithinRange: number; // Number of asks within a defined range (Example: Within 20% of the best ask)
  baseTokenAvailable: BigNumber; // Amount of base token available on the book
  quoteTokenAvailable: BigNumber; // Amount of quote token available on the book
  volume24Hour: BigNumber; // 24 hour volume
  percentChange24Hour: BigNumber; // 24 hour price change percentage
}

interface RadarHistory {
  price24Hour: BigNumber[]; // The 24 hour price history
}

interface RadarMarketBase {
  displayName: string; // Example: ZRX/WETH
  baseTokenAddress: string;
  quoteTokenAddress: string;
  baseTokenDecimals: number;
  quoteTokenDecimals: number;
  quoteIncrement: number; // Maximum precision allowed for the market. Example: 7 (decimal places)
  minOrderSize: BigNumber; // Calculated min base token size based on last trade price
  maxOrderSize: BigNumber; // Calculated max base token size
  score: number; // A score used to rank most active markets
}

interface RadarMarket extends Partial<RadarMarketBase> {
  id: string; // Example: ZRX-WETH. (Mandatory)
  ticker?: RadarTicker; // (Optional)
  stats?: RadarStats; // (Optional)
  history?: RadarHistory; // (Optional)
}

interface Order {
  chainId: number;
  exchangeAddress: string;
  makerAddress: string;
  takerAddress: string;
  feeRecipientAddress: string;
  senderAddress: string;
  makerAssetAmount: BigNumber;
  takerAssetAmount: BigNumber;
  makerFee: BigNumber;
  takerFee: BigNumber;
  expirationTimeSeconds: BigNumber;
  salt: BigNumber;
  makerAssetData: string;
  takerAssetData: string;
  makerFeeAssetData: string;
  takerFeeAssetData: string;
}

interface SignedOrder extends Order {
  signature: string;
}

interface RadarSignedOrder {
  orderHash: string;
  type: RadarOrderType;
  state: RadarOrderState;
  baseTokenAddress: string;
  quoteTokenAddress: string;
  remainingBaseTokenAmount: BigNumber, // converted amount
  remainingQuoteTokenAmount: BigNumber // converted amount
  price: BigNumber;
  createdDate: BigNumber; // unix
  signedOrder: SignedOrder;
}

interface RadarLimitOrder {
  type: UserOrderType;
  quantity: BigNumber;
  price: BigNumber;
  expiration: BigNumber;
 }

interface UnsignedOrder {
  chainId: number;
  senderAddress: string;
  makerAddress: 'SET';
  takerAddress: string;
  makerFee: BigNumber;
  takerFee: BigNumber;
  makerFeeAssetData: string;
  takerFeeAssetData: string;
  makerAssetAmount: BigNumber;
  takerAssetAmount: BigNumber;
  makerAssetData: string;
  takerAssetData: string;
  salt: BigNumber;
  exchangeAddress: string;
  feeRecipientAddress: string;
  expirationTimeSeconds: BigNumber;
  signature: 'SET';
}

interface RadarMarketOrder {
  type: UserOrderType;
  quantity : BigNumber;
 }

interface RadarMarketOrderResponse {
   averagePrice: BigNumber;
   bestPrice: BigNumber;
   worstPrice: BigNumber;
   spread: BigNumber;
   orders: SignedOrder[];
}

interface RadarOrderFeeResponse {
  makerFee: BigNumber;
  takerFee: BigNumber;
  makerFeeAssetData: string;
  takerFeeAssetData: string;
  feeRecipientAddress: string;
  gasEstimate?: BigNumber;
 }

interface RadarBook {
  baseTokenAddress: string;
  quoteTokenAddress: string;
  bids: RadarSignedOrder[];
  asks: RadarSignedOrder[];
}

interface Ohlc {
  open: BigNumber;
  high: BigNumber;
  low: BigNumber;
  close: BigNumber;
}
​
interface RadarCandle extends Ohlc {
  startBlock: number;
  startBlockTimestamp: number;
  endBlock: number; // the last block included in this candle (inclusive)
  endBlockTimestamp: number;
  baseTokenVolume: BigNumber;
  quoteTokenVolume: BigNumber;
}

interface RadarFill extends MarketEvent, OnChainEvent {
  type: UserOrderType;
  blockNumber: number;
  makerAddress: string;
  takerAddress: string;
  feeRecipientAddress: string;
  makerFeePaid: BigNumber; // converted
  takerFeePaid: BigNumber; // converted
  makerFeeTokenAddress: string;
  takerFeeTokenAddress: string;
  filledBaseTokenAmount: BigNumber; // converted
  filledQuoteTokenAmount: BigNumber; // converted
  orderHash: string;
  timestamp: number;
  outlier: boolean; // Whether or not the fill is an outlier
}

interface MarketEvent {
  baseTokenAddress: string;
  quoteTokenAddress: string;
}

interface OrderEvent {
  order: RadarSignedOrder;
}

interface OnChainEvent {
  transactionHash: string;
}

interface RadarNewOrder extends MarketEvent, OrderEvent { }
​
interface RadarRemoveOrder extends MarketEvent {
  reason: string;
  orderType: RadarOrderType;
  orderHash: string;
}
​
interface RadarCancelOrder extends MarketEvent, OnChainEvent {
  orderType: RadarOrderType;
  orderHash: string;
}
​
interface RadarFillOrder extends RadarFill, OrderEvent {
}

interface WebsocketEvent {
  action: WebsocketAction;
  event: RadarFillOrder | RadarNewOrder | RadarCancelOrder | RadarRemoveOrder;
}

interface RadarWebsocketRequest {
  type: WebsocketRequestType;
  requestId?: number;
}

interface RadarSubscribeRequest extends RadarWebsocketRequest {
  type: WebsocketRequestType.SUBSCRIBE;
  topic: WebsocketRequestTopic;
  market: string;
}

interface RadarUnsubscribeRequest extends RadarWebsocketRequest {
  type: WebsocketRequestType.UNSUBSCRIBE;
  topic: WebsocketRequestTopic;
  market: string;
}

interface RadarWebsocketResponse {
  type: WebsocketRequestType | 'ERROR';
  requestId?: number;
}