"""
Onionr - Private P2P Communication.

Creates an onionr direct connection service by scanning all connection blocks
"""
import communicator
from onionrblocks import onionrblockapi
from onionrutils import stringvalidators, bytesconverter
from coredb import blockmetadb
from onionrservices import server_exists
"""
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
"""


def service_creator(daemon):
    assert isinstance(daemon, communicator.OnionrCommunicatorDaemon)

    # Find socket connection blocks
    # TODO cache blocks and only look at recently received ones
    con_blocks = blockmetadb.get_blocks_by_type('con')
    for b in con_blocks:
        if b not in daemon.active_services:
            bl = onionrblockapi.Block(b, decrypt=True)
            bs = bytesconverter.bytes_to_str(bl.bcontent) + '.onion'
            if server_exists(bl.signer):
                continue
            if stringvalidators.validate_pub_key(bl.signer) and \
                    stringvalidators.validate_transport(bs):
                signer = bytesconverter.bytes_to_str(bl.signer)
                daemon.active_services.append(b)
                daemon.active_services.append(signer)
                if not daemon.services.create_server(signer, bs, daemon):
                    daemon.active_services.remove(b)
                    daemon.active_services.remove(signer)
    daemon.decrementThreadCount('service_creator')