@maxosllc/smart-order-router
Version:
BlockDAG Smart Order Router
72 lines • 5.45 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.IRouteCachingProvider = void 0;
const sdk_core_1 = require("@uniswap/sdk-core");
const model_1 = require("./model");
/**
* Abstract class for a RouteCachingProvider.
* Defines the base methods of how to interact with this interface, but not the implementation of how to cache.
*/
class IRouteCachingProvider {
constructor() {
/**
* Final implementation of the public `getCachedRoute` method, this is how code will interact with the implementation
*
* @public
* @readonly
* @param chainId
* @param amount
* @param quoteCurrency
* @param tradeType
* @param protocols
* @param blockNumber
*/
this.getCachedRoute = async (
// Defined as a readonly member instead of a regular function to make it final.
chainId, amount, quoteCurrency, tradeType, protocols, blockNumber, optimistic = false, alphaRouterConfig) => {
if ((await this.getCacheMode(chainId, amount, quoteCurrency, tradeType, protocols)) == model_1.CacheMode.Darkmode) {
return undefined;
}
const cachedRoute = await this._getCachedRoute(chainId, amount, quoteCurrency, tradeType, protocols, blockNumber, optimistic, alphaRouterConfig);
return this.filterExpiredCachedRoutes(cachedRoute, blockNumber, optimistic);
};
/**
* Final implementation of the public `setCachedRoute` method.
* This method will set the blockToLive in the CachedRoutes object before calling the internal method to insert in cache.
*
* @public
* @readonly
* @param cachedRoutes The route to cache.
* @returns Promise<boolean> Indicates if the route was inserted into cache.
*/
this.setCachedRoute = async (
// Defined as a readonly member instead of a regular function to make it final.
cachedRoutes, amount) => {
if ((await this.getCacheModeFromCachedRoutes(cachedRoutes, amount)) ==
model_1.CacheMode.Darkmode) {
return false;
}
cachedRoutes.blocksToLive = await this._getBlocksToLive(cachedRoutes, amount);
return this._setCachedRoute(cachedRoutes, amount);
};
}
/**
* Returns the CacheMode for the given cachedRoutes and amount
*
* @param cachedRoutes
* @param amount
*/
getCacheModeFromCachedRoutes(cachedRoutes, amount) {
const quoteCurrency = cachedRoutes.tradeType == sdk_core_1.TradeType.EXACT_INPUT
? cachedRoutes.currencyOut
: cachedRoutes.currencyIn;
return this.getCacheMode(cachedRoutes.chainId, amount, quoteCurrency, cachedRoutes.tradeType, cachedRoutes.protocolsCovered);
}
filterExpiredCachedRoutes(cachedRoutes, blockNumber, optimistic) {
return (cachedRoutes === null || cachedRoutes === void 0 ? void 0 : cachedRoutes.notExpired(blockNumber, optimistic))
? cachedRoutes
: undefined;
}
}
exports.IRouteCachingProvider = IRouteCachingProvider;
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