from datetime import datetime
from operator import itemgetter
from typing import Dict


def fill_string_with_char(string: str, fillchar: str, amount: int, start: bool = False, end: bool = False) -> str:
    """
    :param string: input string to be formatted
    :param fillchar: character to fill the original string with
    :param amount: how many fillchar characters to put
    :param start: allows to put fillchar at the beginning of the original string
    :param end: allows to put fillchar at the ending of the original string
    :return: new string formatted

    usage:

    fill_string_with_char(string="club script position", fillchar='*', amount=3)
    output will be: 'club***script***position'

    fill_string_with_char(string="club script position", fillchar='*', amount=3, start=True, end=True)
    output will be: '***club***script***position***'

    """
    fill_with = fillchar * amount
    string_revised = fill_with.join(string.split())
    if start:
        string_revised = string_revised.rjust(len(string_revised)+len(fill_with), fillchar)
    if end:
        string_revised = string_revised.ljust(len(string_revised)+len(fill_with), fillchar)
    return string_revised


def get_merged_txs_list(normal_txs_list, token_events_list) -> Dict[str, Dict[str, str]]:
    res = []
    for i in normal_txs_list:
        for j in token_events_list:
            if i['hash'] == j['hash']:
                normal_txs_list.remove(i)
    res.extend(normal_txs_list)
    res.extend(token_events_list)
    txs_list = sorted(res, key=itemgetter('timeStamp'), reverse=True)
    return dict((item['hash'], item) for item in txs_list)


def generate_timestamp():
    return datetime.strftime(datetime.now(), '%F %H:%M:%S')