import os
import shutil
import sys
from unittest import mock

import mozunit
import requests

try:
    from http.server import HTTPServer  # py3
except ImportError:
    from BaseHTTPServer import HTTPServer  # py2

from mozlog.structuredlog import StructuredLogger, set_default_logger
from raptor.control_server import RaptorControlServer

# need this so the raptor unit tests can find output & filter classes
here = os.path.abspath(os.path.dirname(__file__))
raptor_dir = os.path.join(os.path.dirname(here), "raptor")
sys.path.insert(0, raptor_dir)

from raptor.results import RaptorResultsHandler

set_default_logger(StructuredLogger("test_control_server"))


def clear_cache():
    # remove the condprof download cache
    from condprof.client import CONDPROF_CACHE  # noqa

    if os.path.exists(CONDPROF_CACHE):
        shutil.rmtree(CONDPROF_CACHE)


clear_cache()


def test_start_and_stop():

    results_handler = RaptorResultsHandler()
    control = RaptorControlServer(results_handler)

    assert control.server is None
    control.start()
    assert isinstance(control.server, HTTPServer)
    assert control.server.fileno()
    assert control._server_thread.is_alive()

    control.stop()
    assert not control._server_thread.is_alive()


def test_server_get_timeout(raptor):
    test_name = "test-name"
    url = "test-url"
    metrics = {"metric1": False, "metric2": True, "metric3": True}
    page_cycle = 1

    def post_state():
        requests.post(
            "http://127.0.0.1:%s/" % raptor.control_server.port,
            json={
                "type": "webext_raptor-page-timeout",
                "data": [test_name, url, page_cycle, metrics],
            },
        )

    assert len(raptor.results_handler.page_timeout_list) == 0

    post_state()

    assert len(raptor.results_handler.page_timeout_list) == 1

    timeout_details = raptor.results_handler.page_timeout_list[0]
    assert timeout_details["test_name"] == test_name
    assert timeout_details["url"] == url

    pending_metrics = [k for k, v in metrics.items() if v]
    assert len(timeout_details["pending_metrics"].split(", ")) == len(pending_metrics)


def test_server_android_app_backgrounding():
    # Mock the background and foreground functions
    with mock.patch.object(
        RaptorControlServer, "background_app", return_value=True
    ) as _, mock.patch.object(
        RaptorControlServer, "foreground_app", return_value=True
    ) as _:

        results_handler = RaptorResultsHandler()
        control = RaptorControlServer(results_handler)
        control.backgrounded = False

        control.start()
        assert control._server_thread.is_alive()

        def post_start_background():
            requests.post(
                "http://127.0.0.1:%s/" % control.port,
                json={
                    "type": "webext_start_background",
                    "data": "starting background app",
                },
            )

        def post_end_background():
            requests.post(
                "http://127.0.0.1:%s/" % control.port,
                json={"type": "webext_end_background", "data": "ending background app"},
            )

        # Test that app is backgrounded
        post_start_background()
        control.background_app.assert_called()

        # Test that app is returned to foreground
        post_end_background()
        control.foreground_app.assert_called()

        # Make sure the control server stops after these requests
        control.stop()
        assert not control._server_thread.is_alive()


def test_server_wait_states(raptor):
    import datetime

    def post_state():
        requests.post(
            "http://127.0.0.1:%s/" % raptor.control_server.port,
            json={"type": "webext_status", "data": "test status"},
        )

    wait_time = 5
    message_state = "webext_status/test status"
    rhc = raptor.control_server.server.RequestHandlerClass

    # Test initial state
    assert rhc.wait_after_messages == {}
    assert rhc.waiting_in_state is None
    assert rhc.wait_timeout == 60
    assert raptor.control_server_wait_get() == "None"

    # Test setting a state
    assert raptor.control_server_wait_set(message_state) == ""
    assert message_state in rhc.wait_after_messages
    assert rhc.wait_after_messages[message_state]

    # Test clearing a non-existent state
    assert raptor.control_server_wait_clear("nothing") == ""
    assert message_state in rhc.wait_after_messages

    # Test clearing a state
    assert raptor.control_server_wait_clear(message_state) == ""
    assert message_state not in rhc.wait_after_messages

    # Test clearing all states
    assert raptor.control_server_wait_set(message_state) == ""
    assert message_state in rhc.wait_after_messages
    assert raptor.control_server_wait_clear("all") == ""
    assert rhc.wait_after_messages == {}

    # Test wait timeout
    # Block on post request
    assert raptor.control_server_wait_set(message_state) == ""
    assert rhc.wait_after_messages[message_state]
    assert raptor.control_server_wait_timeout(wait_time) == ""
    assert rhc.wait_timeout == wait_time
    start = datetime.datetime.now()
    post_state()
    assert datetime.datetime.now() - start < datetime.timedelta(seconds=wait_time + 2)
    assert raptor.control_server_wait_get() == "None"
    assert message_state not in rhc.wait_after_messages

    raptor.clean_up()
    assert not raptor.control_server._server_thread.is_alive()


def test_clean_up_stop_server(raptor):
    assert raptor.control_server._server_thread.is_alive()
    assert raptor.control_server.port is not None
    assert raptor.control_server.server is not None

    raptor.clean_up()
    assert not raptor.control_server._server_thread.is_alive()


if __name__ == "__main__":
    mozunit.main()