import { Contract, EventFilter } from 'ethers';

export interface IBlockchainEvent {
    transactionHash: string;
    blockHash: string;
    name?: string;
    timestamp?: number;
    [key: string]: any;
}

export const getEventsFromContract = async (
    contract: Contract,
    eventFilter: EventFilter
): Promise<IBlockchainEvent[]> => {
    const logs = await contract.provider.getLogs({
        ...eventFilter,
        fromBlock: 0,
        toBlock: 'latest'
    });

    const parsedLogs = logs.map(
        (log: { data: any; topics: any; blockHash: any; transactionHash: any }) => {
            const { name } = contract.interface.parseLog(log);

            return {
                ...contract.interface.decodeEventLog(name, log.data, log.topics),
                blockHash: log.blockHash,
                transactionHash: log.transactionHash
            };
        }
    );

    return parsedLogs;
};