aave-protocol-v2/helpers/oracles-helpers.ts

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import {
tEthereumAddress,
iMultiPoolsAssets,
IMarketRates,
iAssetBase,
iAssetAggregatorBase,
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eContractid,
} from './types';
import {LendingRateOracle} from '../types/LendingRateOracle';
import {PriceOracle} from '../types/PriceOracle';
import {MockAggregator} from '../types/MockAggregator';
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import {deployMockAggregator, getContract} from './contracts-helpers';
import {waitForTx} from './misc-utils';
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import {verifyContract} from './etherscan-verification';
export const setInitialMarketRatesInRatesOracle = async (
marketRates: iMultiPoolsAssets<IMarketRates>,
assetsAddresses: {[x: string]: tEthereumAddress},
lendingRateOracleInstance: LendingRateOracle
) => {
for (const [assetSymbol, {borrowRate}] of Object.entries(marketRates) as [
string,
IMarketRates
][]) {
const assetAddressIndex = Object.keys(assetsAddresses).findIndex(
(value) => value === assetSymbol
);
const [, assetAddress] = (Object.entries(assetsAddresses) as [string, string][])[
assetAddressIndex
];
await lendingRateOracleInstance.setMarketBorrowRate(assetAddress, borrowRate);
}
};
export const setInitialAssetPricesInOracle = async (
prices: iAssetBase<tEthereumAddress>,
assetsAddresses: iAssetBase<tEthereumAddress>,
priceOracleInstance: PriceOracle
) => {
for (const [assetSymbol, price] of Object.entries(prices) as [string, string][]) {
const assetAddressIndex = Object.keys(assetsAddresses).findIndex(
(value) => value === assetSymbol
);
const [, assetAddress] = (Object.entries(assetsAddresses) as [string, string][])[
assetAddressIndex
];
await waitForTx(await priceOracleInstance.setAssetPrice(assetAddress, price));
}
};
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export const deployAllMockAggregators = async (
initialPrices: iAssetAggregatorBase<string>,
verify?: boolean
) => {
const aggregators: {[tokenSymbol: string]: MockAggregator} = {};
for (const tokenContractName of Object.keys(initialPrices)) {
if (tokenContractName !== 'ETH') {
const priceIndex = Object.keys(initialPrices).findIndex(
(value) => value === tokenContractName
);
const [, price] = (Object.entries(initialPrices) as [string, string][])[priceIndex];
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aggregators[tokenContractName] = await deployMockAggregator(price, verify);
}
}
return aggregators;
};