import subprocess
from time import sleep

from ward import test, fixture, raises

from ports.commands.base import PortInfo
from ports.commands.open import OpenCommand


@fixture
def closed_portinfs_8000_to_8020():
    """
    can't yield this because `_fill_portinfos` consumes it for every port
    """
    return [PortInfo(is_open=False, port=i) for i in range(8000, 8021)]


@fixture
def http_server_pid():
    p = subprocess.Popen(["python3", "-m", "http.server", "14520"])
    sleep(1)  # the server may take a bit to be up-n-running
    yield p.pid
    p.kill()


@fixture
def open_command_8000_to_8021():
    yield OpenCommand(start_port=7990, end_port=8025)


@test("initializing with start port 80 and end port 79 should raise `ValueError`")
def _():
    with raises(ValueError):
        OpenCommand(start_port=80, end_port=79)


@test(
    "`closed_portinfos` returns a list with the port 14520 closed by the "
    "`http.server` process"
)
def _(hpd: int = http_server_pid):
    closed_portinfos = OpenCommand().closed_portinfos
    portinfo_14520 = [
        portinfo for portinfo in closed_portinfos if portinfo.port == 14520
    ][0]
    assert portinfo_14520
    assert portinfo_14520.pid == hpd
    assert portinfo_14520.interface == "localhost"
    assert portinfo_14520.process_name == "python3"


@test("`_fill_portinfos` of [7990..8025] should return [7990..7999],[8022...8025]")
def _(
    cp: list[PortInfo] = closed_portinfs_8000_to_8020,
    op: OpenCommand = open_command_8000_to_8021,
):
    filled_portinfos = op._fill_portinfos(cp)
    assert len(filled_portinfos) == 8025 - 8000 - 20 + 8000 - 7990
    for portinfo in filled_portinfos:
        assert portinfo.port in range(7990, 8000) or portinfo.port in range(8021, 8026)