#!/usr/bin/python
import argparse
import logging
import operator
import re

from monero.backends.jsonrpc import JSONRPCDaemon
from monero.daemon import Daemon


def url_data(url):
    gs = (
        re.compile(
            r"^(?:(?P<user>[a-z0-9_-]+)?(?::(?P<password>[^@]+))?@)?(?P<host>[^:\s]+)(?::(?P<port>[0-9]+))?$"
        )
        .match(url)
        .groupdict()
    )
    return dict(filter(operator.itemgetter(1), gs.items()))


def get_daemon():
    argsparser = argparse.ArgumentParser(description="Display daemon info")
    argsparser.add_argument(
        "daemon_rpc_url",
        nargs="?",
        type=url_data,
        default="127.0.0.1:18081",
        help="Daemon RPC URL [user[:password]@]host[:port]",
    )
    argsparser.add_argument(
        "-p", dest="proxy_url", nargs="?", type=str, default=None, help="Proxy URL"
    )
    argsparser.add_argument(
        "-t", dest="timeout", type=int, default=30, help="Request timeout"
    )
    argsparser.add_argument(
        "-v",
        dest="verbosity",
        action="count",
        default=0,
        help="Verbosity (repeat to increase; -v for INFO, -vv for DEBUG",
    )
    args = argsparser.parse_args()
    level = logging.WARNING
    if args.verbosity == 1:
        level = logging.INFO
    elif args.verbosity > 1:
        level = logging.DEBUG
    logging.basicConfig(level=level, format="%(asctime)-15s %(message)s")
    return Daemon(
        JSONRPCDaemon(
            timeout=args.timeout, proxy_url=args.proxy_url, **args.daemon_rpc_url
        )
    )


d = get_daemon()
info = d.info()
print(
    "Net: {net:>20s}net\n"
    "Height:      {height:15d}\n"
    "Difficulty:  {difficulty:15d}\n"
    "Alt blocks:  {alt_blocks_count:15d}\n".format(
        net="test"
        if info["testnet"]
        else "stage"
        if info["stagenet"]
        else "main"
        if info["mainnet"]
        else "unknown",
        **info
    )
)
print("Last 6 blocks:")
for hdr in reversed(d.headers(info["height"] - 6, info["height"] - 1)):
    print(
        "{height:10d} {hash} {block_size_kb:6.2f} kB {num_txes:3d} txn(s) "
        "v{major_version:d}".format(block_size_kb=hdr["block_size"] / 1024.0, **hdr)
    )
mempool = d.mempool()
if mempool:
    print("\n{:d} txn(s) in mempool:".format(len(mempool)))
    for tx in d.mempool():
        print("{:>10s} {:s}".format(tx.timestamp.strftime("%H:%M:%S"), tx.hash))
else:
    print("\nMempool is empty")