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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/@celo/contractkit/lib/wrappers

Просмотр файла: SortedOracles.d.ts

import { Address, CeloTransactionObject, Connection } from '@celo/connect';
import BigNumber from 'bignumber.js';
import { AddressRegistry } from '../address-registry';
import { StableTokenContract } from '../base';
import { StableToken } from '../celo-tokens';
import { SortedOracles } from '../generated/SortedOracles';
import { BaseWrapper } from './BaseWrapper';
export declare enum MedianRelation {
    Undefined = 0,
    Lesser = 1,
    Greater = 2,
    Equal = 3
}
export interface SortedOraclesConfig {
    reportExpirySeconds: BigNumber;
}
export interface OracleRate {
    address: Address;
    rate: BigNumber;
    medianRelation: MedianRelation;
}
export interface OracleTimestamp {
    address: Address;
    timestamp: BigNumber;
    medianRelation: MedianRelation;
}
export interface OracleReport {
    address: Address;
    rate: BigNumber;
    timestamp: BigNumber;
}
export interface MedianRate {
    rate: BigNumber;
}
export declare type ReportTarget = StableTokenContract | Address;
/**
 * Currency price oracle contract.
 */
export declare class SortedOraclesWrapper extends BaseWrapper<SortedOracles> {
    protected readonly connection: Connection;
    protected readonly contract: SortedOracles;
    protected readonly registry: AddressRegistry;
    constructor(connection: Connection, contract: SortedOracles, registry: AddressRegistry);
    /**
     * Gets the number of rates that have been reported for the given target
     * @param target The ReportTarget, either CeloToken or currency pair
     * @return The number of reported oracle rates for `token`.
     */
    numRates(target: ReportTarget): Promise<number>;
    /**
     * Returns the median rate for the given target
     * @param target The ReportTarget, either CeloToken or currency pair
     * @return The median exchange rate for `token`, expressed as:
     *   amount of that token / equivalent amount in CELO
     */
    medianRate(target: ReportTarget): Promise<MedianRate>;
    /**
     * Checks if the given address is whitelisted as an oracle for the target
     * @param target The ReportTarget, either CeloToken or currency pair
     * @param oracle The address that we're checking the oracle status of
     * @returns boolean describing whether this account is an oracle
     */
    isOracle(target: ReportTarget, oracle: Address): Promise<boolean>;
    /**
     * Returns the list of whitelisted oracles for a given target
     * @param target The ReportTarget, either CeloToken or currency pair
     * @returns The list of whitelisted oracles for a given token.
     */
    getOracles(target: ReportTarget): Promise<Address[]>;
    /**
     * Returns the report expiry parameter.
     * @returns Current report expiry.
     */
    reportExpirySeconds: () => Promise<BigNumber>;
    /**
     * Returns the expiry for the target if exists, if not the default.
     * @param target The ReportTarget, either CeloToken or currency pair
     * @return The report expiry in seconds.
     */
    getTokenReportExpirySeconds(target: ReportTarget): Promise<BigNumber>;
    /**
     * Checks if the oldest report for a given target is expired
     * @param target The ReportTarget, either CeloToken or currency pair
     */
    isOldestReportExpired(target: ReportTarget): Promise<[boolean, Address]>;
    /**
     * Removes expired reports, if any exist
     * @param target The ReportTarget, either CeloToken or currency pair
     * @param numReports The upper-limit of reports to remove. For example, if there
     * are 2 expired reports, and this param is 5, it will only remove the 2 that
     * are expired.
     */
    removeExpiredReports(target: ReportTarget, numReports?: number): Promise<CeloTransactionObject<void>>;
    /**
     * Updates an oracle value and the median.
     * @param target The ReportTarget, either CeloToken or currency pair
     * @param value The amount of `token` equal to one CELO.
     */
    report(target: ReportTarget, value: BigNumber.Value, oracleAddress: Address): Promise<CeloTransactionObject<void>>;
    /**
     * Updates an oracle value and the median.
     * @param value The amount of US Dollars equal to one CELO.
     * @param oracleAddress The address to report as
     * @param token The token to report for
     */
    reportStableToken(value: BigNumber.Value, oracleAddress: Address, token?: StableToken): Promise<CeloTransactionObject<void>>;
    /**
     * Returns current configuration parameters.
     */
    getConfig(): Promise<SortedOraclesConfig>;
    /**
     * @dev Returns human readable configuration of the sortedoracles contract
     * @return SortedOraclesConfig object
     */
    getHumanReadableConfig(): Promise<{
        reportExpiry: string;
    }>;
    /**
     * Helper function to get the rates for StableToken, by passing the address
     * of StableToken to `getRates`.
     */
    getStableTokenRates: () => Promise<OracleRate[]>;
    /**
     * Gets all elements from the doubly linked list.
     * @param target The ReportTarget, either CeloToken or currency pair in question
     * @return An unpacked list of elements from largest to smallest.
     */
    getRates(target: ReportTarget): Promise<OracleRate[]>;
    /**
     * Gets all elements from the doubly linked list.
     * @param target The ReportTarget, either CeloToken or currency pair in question
     * @return An unpacked list of elements from largest to smallest.
     */
    getTimestamps(target: ReportTarget): Promise<OracleTimestamp[]>;
    getReports(target: ReportTarget): Promise<OracleReport[]>;
    private findLesserAndGreaterKeys;
    private toCurrencyPairIdentifier;
}
export declare type SortedOraclesWrapperType = SortedOraclesWrapper;

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