from twisted.internet import defer, reactor
from twisted.trial import unittest
from twisted.web import resource, server

from p2pool import networks, node, work
from p2pool.bitcoin import worker_interface
from p2pool.util import deferral, jsonrpc, variable

class factory(object):
    new_headers = variable.Event()
    new_block = variable.Event()
    new_tx = variable.Event()
    conn = variable.Variable(None)
    @classmethod
    def getProtocol(self):
        return defer.Deferred()

class bitcoind(object):
    @classmethod
    def rpc_help(self):
        return '\ngetblock '
    
    @classmethod
    def rpc_getblock(self, block_hash_hex):
        return dict(height=42)
    
    @classmethod
    def rpc_getmemorypool(self):
        return {
            "version" : 2,
            "previousblockhash" : "000000000000016c169477c25421250ec5d32cf9c6d38538b5de970a2355fd89",
            "transactions" : [
            ],
            "coinbaseaux" : {
                "flags" : "062f503253482f"
            },
            "coinbasevalue" : 5044450000,
            "target" : "0000000000000513c50000000000000000000000000000000000000000000000",
            "mintime" : 1351655621,
            "mutable" : [
                "time",
                "transactions",
                "prevblock"
            ],
            "noncerange" : "00000000ffffffff",
            "sigoplimit" : 20000,
            "sizelimit" : 1000000,
            "curtime" : 1351659940,
            "bits" : "1a0513c5",
            "height" : 205801
        }

class Test(unittest.TestCase):
    @defer.inlineCallbacks
    def test_node(self):
        net = networks.nets['litecoin_testnet']
        n = node.Node(factory, bitcoind, [], [], net)
        yield n.start()
        
        wb = work.WorkerBridge(node=n, my_pubkey_hash=42, donation_percentage=2, merged_urls=[], worker_fee=3)
        web_root = resource.Resource()
        worker_interface.WorkerInterface(wb).attach_to(web_root)
        port = reactor.listenTCP(0, server.Site(web_root))
        
        proxy = jsonrpc.Proxy('http://127.0.0.1:' + str(port.getHost().port))
        
        yield deferral.sleep(3)
        
        for i in xrange(100):
            blah = yield proxy.rpc_getwork()
            yield proxy.rpc_getwork(blah['data'])
        
        yield deferral.sleep(3)
        
        assert len(n.tracker.items) == 100
        assert n.tracker.verified.get_height(n.best_share_var.value) == 100
        
        n.stop()
        
        yield port.stopListening()
        del net, n, wb, web_root, port, proxy
        import gc
        gc.collect()
        gc.collect()
        gc.collect()
        
        yield deferral.sleep(20) # waiting for work_poller to exit