# pylint: disable=redefined-outer-name
# pylint: disable=unused-argument
# pylint: disable=missing-function-docstring

import pytest
from selfprivacy_api.jobs import JobStatus

from selfprivacy_api.jobs.nix_collect_garbage import (
    get_dead_packages,
    nix_collect_garbage,
    parse_line,
    CLEAR_COMPLETED,
    COMPLETED_WITH_ERROR,
    stream_process,
    RESULT_WAAS_NOT_FOUND_ERROR,
)


output_print_dead = """
finding garbage collector roots...
determining live/dead paths...
/nix/store/02k8pmw00p7p7mf2dg3n057771w7liia-python3.10-cchardet-2.1.7
/nix/store/03vc6dznx8njbvyd3gfhfa4n5j4lvhbl-python3.10-async-timeout-4.0.2
/nix/store/03ybv2dvfk7c3cpb527y5kzf6i35ch41-python3.10-pycparser-2.21
/nix/store/04dn9slfqwhqisn1j3jv531lms9w5wlj-python3.10-hypothesis-6.50.1.drv
/nix/store/04hhx2z1iyi3b48hxykiw1g03lp46jk7-python-remove-bin-bytecode-hook
"""


output_collect_garbage = """
removing old generations of profile /nix/var/nix/profiles/per-user/def/channels
finding garbage collector roots...
deleting garbage...
deleting '/nix/store/02k8pmw00p7p7mf2dg3n057771w7liia-python3.10-cchardet-2.1.7'
deleting '/nix/store/03vc6dznx8njbvyd3gfhfa4n5j4lvhbl-python3.10-async-timeout-4.0.2'
deleting '/nix/store/03ybv2dvfk7c3cpb527y5kzf6i35ch41-python3.10-pycparser-2.21'
deleting '/nix/store/04dn9slfqwhqisn1j3jv531lms9w5wlj-python3.10-hypothesis-6.50.1.drv'
deleting '/nix/store/04hhx2z1iyi3b48hxykiw1g03lp46jk7-python-remove-bin-bytecode-hook'
deleting unused links...
note: currently hard linking saves -0.00 MiB
190 store paths deleted, 425.51 MiB freed
"""


def test_parse_line():
    txt = "190 store paths deleted, 425.51 MiB freed"
    output = (
        JobStatus.FINISHED,
        100,
        CLEAR_COMPLETED,
        "425.51 MiB have been cleared",
    )
    assert parse_line(txt) == output


def test_parse_line_with_blank_line():
    txt = ""
    output = (
        JobStatus.FINISHED,
        100,
        COMPLETED_WITH_ERROR,
        RESULT_WAAS_NOT_FOUND_ERROR,
    )
    assert parse_line(txt) == output


def test_get_dead_packages():
    assert get_dead_packages(output_print_dead) == (5, 20.0)


def test_get_dead_packages_zero():
    assert get_dead_packages("") == (0, None)


def test_stream_process():
    log_event = []
    reference = [
        (JobStatus.RUNNING, 20, "Сleaning...", ""),
        (JobStatus.RUNNING, 40, "Сleaning...", ""),
        (JobStatus.RUNNING, 60, "Сleaning...", ""),
        (JobStatus.RUNNING, 80, "Сleaning...", ""),
        (JobStatus.RUNNING, 100, "Сleaning...", ""),
        (
            JobStatus.FINISHED,
            100,
            "Сleaning completed.",
            "425.51 MiB have been cleared",
        ),
    ]

    def set_job_status(status, progress, status_text, result=""):
        log_event.append((status, progress, status_text, result))

    stream_process(output_collect_garbage.split("\n"), 20.0, set_job_status)
    assert log_event == reference


def test_nix_collect_garbage():
    log_event = []
    reference = [
        (JobStatus.RUNNING, 0, "Сalculate the number of dead packages...", ""),
        (JobStatus.RUNNING, 0, "Found 5 packages to remove!", ""),
        (JobStatus.RUNNING, 20, "Сleaning...", ""),
        (JobStatus.RUNNING, 40, "Сleaning...", ""),
        (JobStatus.RUNNING, 60, "Сleaning...", ""),
        (JobStatus.RUNNING, 80, "Сleaning...", ""),
        (JobStatus.RUNNING, 100, "Сleaning...", ""),
        (
            JobStatus.FINISHED,
            100,
            "Сleaning completed.",
            "425.51 MiB have been cleared",
        ),
    ]

    def set_job_status(status="", progress="", status_text="", result=""):
        log_event.append((status, progress, status_text, result))

    nix_collect_garbage(
        None,
        None,
        lambda: output_print_dead,
        lambda: output_collect_garbage.split("\n"),
        set_job_status,
    )

    assert log_event == reference


def test_nix_collect_garbage_zero_trash():
    log_event = []
    reference = [
        (JobStatus.RUNNING, 0, "Сalculate the number of dead packages...", ""),
        (JobStatus.FINISHED, 100, "Nothing to clear", "System is clear"),
    ]

    def set_job_status(status="", progress="", status_text="", result=""):
        log_event.append((status, progress, status_text, result))

    nix_collect_garbage(
        None,
        None,
        lambda: "",
        lambda: output_collect_garbage.split("\n"),
        set_job_status,
    )

    assert log_event == reference