from libmproxy import script, flow
import tutils
import shlex
import os
import time
import mock


class TestScript:
    def test_simple(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        sp = tutils.test_data.path("scripts/a.py")
        p = script.Script("%s --var 40" % sp, fm)

        assert "here" in p.ns
        assert p.run("here") == (True, 41)
        assert p.run("here") == (True, 42)

        ret = p.run("errargs")
        assert not ret[0]
        assert len(ret[1]) == 2

        # Check reload
        p.load()
        assert p.run("here") == (True, 41)

    def test_duplicate_flow(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        fm.load_script(tutils.test_data.path("scripts/duplicate_flow.py"))
        f = tutils.tflow()
        fm.handle_request(f)
        assert fm.state.flow_count() == 2
        assert not fm.state.view[0].request.is_replay
        assert fm.state.view[1].request.is_replay

    def test_err(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)

        tutils.raises(
            "not found",
            script.Script, "nonexistent", fm
        )

        tutils.raises(
            "not a file",
            script.Script, tutils.test_data.path("scripts"), fm
        )

        tutils.raises(
            script.ScriptError,
            script.Script, tutils.test_data.path("scripts/syntaxerr.py"), fm
        )

        tutils.raises(
            script.ScriptError,
            script.Script, tutils.test_data.path("scripts/loaderr.py"), fm
        )

    def test_concurrent(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        fm.load_script(tutils.test_data.path("scripts/concurrent_decorator.py"))

        with mock.patch("libmproxy.controller.DummyReply.__call__") as m:
            f1, f2 = tutils.tflow(), tutils.tflow()
            t_start = time.time()
            fm.handle_request(f1)
            f1.reply()
            fm.handle_request(f2)
            f2.reply()

            # Two instantiations
            assert m.call_count == 0  # No calls yet.
            assert (time.time() - t_start) < 0.09

    def test_concurrent2(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        s = script.Script(
            tutils.test_data.path("scripts/concurrent_decorator.py"),
            fm)
        s.load()
        m = mock.Mock()

        class Dummy:
            def __init__(self):
                self.response = self
                self.error = self
                self.reply = m

        t_start = time.time()

        for hook in ("clientconnect",
                     "serverconnect",
                     "response",
                     "error",
                     "clientconnect"):
            d = Dummy()
            assert s.run(hook, d)[0]
            d.reply()
        while (time.time() - t_start) < 20 and m.call_count <= 5:
            if m.call_count == 5:
                return
            time.sleep(0.001)
        assert False

    def test_concurrent_err(self):
        s = flow.State()
        fm = flow.FlowMaster(None, s)
        tutils.raises(
            "decorator not supported for this method",
            script.Script,
            tutils.test_data.path("scripts/concurrent_decorator_err.py"),
            fm)


def test_command_parsing():
    s = flow.State()
    fm = flow.FlowMaster(None, s)
    absfilepath = os.path.normcase(tutils.test_data.path("scripts/a.py"))
    s = script.Script(absfilepath, fm)
    assert os.path.isfile(s.argv[0])