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import * as _ from 'lodash';
import {SignedOrder} from '0x.js';
import {assert} from '@0xproject/assert';
import {schemas} from '@0xproject/json-schemas';
import {
OrderbookChannelMessage,
OrderbookChannelMessageTypes,
} from '../types';
import {typeConverters} from './type_converters';
export const orderbookChannelMessageParsers = {
parser(utf8Data: string): OrderbookChannelMessage {
const messageObj = JSON.parse(utf8Data);
const type: string = _.get(messageObj, 'type');
assert.assert(!_.isUndefined(type), `Message is missing a type parameter: ${utf8Data}`);
switch (type) {
case (OrderbookChannelMessageTypes.Snapshot): {
assert.doesConformToSchema('message', messageObj, schemas.relayerApiOrderbookChannelSnapshotSchema);
const orderbook = messageObj.payload;
typeConverters.convertOrderbookStringFieldsToBigNumber(orderbook);
return {
type,
payload: orderbook,
};
}
case (OrderbookChannelMessageTypes.Update): {
assert.doesConformToSchema('message', messageObj, schemas.relayerApiOrderbookChannelUpdateSchema);
const order = messageObj.payload;
typeConverters.convertOrderStringFieldsToBigNumber(order);
return {
type,
payload: order,
};
}
default: {
return {
type: OrderbookChannelMessageTypes.Unknown,
payload: undefined,
};
}
}
},
};
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