import shelve
from typing import Dict

from docker_plugin_api.IpamDriverEntities import *

from .Ipam import *


pools_store = shelve.open('pools', writeback=True)
pools: Dict[str, RequestPoolEntity] = pools_store


def pools_sync():
    pools_store.sync()


spaces = {
    'local': Space('local'),
    'global': Space('global'),
}


def create_pool(request: RequestPoolEntity) -> tuple[str, Pool]:
    space = spaces[request.AddressSpace]
    pool = Pool(pool=request.Pool, subPool=request.SubPool, options=request.Options, v6=request.V6)
    pool_id = space.add_pool(pool)
    full_id = '{}-{}'.format(space.name, pool_id)
    pools[full_id] = request
    pools_sync()
    return full_id, pool


def remove_pool(full_id: str):
    space, pool = get_space_pool(full_id)
    space.remove_pool(pool)
    if full_id in pools:
        del pools[full_id]
        pools_sync()


def get_space_pool(full_id: str):
    space_id, pool_id = full_id.rsplit('-', 2)
    space = spaces[space_id]
    if not space.has_pool(pool_id) and full_id in pools:
        create_pool(pools[full_id])
    return space, space.get_pool(pool_id)


__all__ = ['spaces', 'get_space_pool', 'pools', 'pools_sync', 'create_pool', 'remove_pool']