import random
import string
import time
from datetime import datetime
from typing import cast

import pytest
from requests.structures import CaseInsensitiveDict

from waybackpy.exceptions import MaximumSaveRetriesExceeded
from waybackpy.save_api import WaybackMachineSaveAPI


def rndstr(n: int) -> str:
    return "".join(
        random.choice(string.ascii_uppercase + string.digits) for _ in range(n)
    )


def test_save() -> None:
    url = "https://github.com/akamhy/waybackpy"
    user_agent = (
        "Mozilla/5.0 (MacBook Air; M1 Mac OS X 11_4) AppleWebKit/605.1.15 "
        "(KHTML, like Gecko) Version/14.1.1 Safari/604.1"
    )
    save_api = WaybackMachineSaveAPI(url, user_agent)
    save_api.save()
    archive_url = save_api.archive_url
    timestamp = save_api.timestamp()
    headers = save_api.headers  # CaseInsensitiveDict
    cached_save = save_api.cached_save
    assert cached_save in [True, False]
    assert archive_url.find("github.com/akamhy/waybackpy") != -1
    assert timestamp is not None
    assert str(headers).find("github.com/akamhy/waybackpy") != -1
    assert isinstance(save_api.timestamp(), datetime)


def test_max_redirect_exceeded() -> None:
    with pytest.raises(MaximumSaveRetriesExceeded):
        url = f"https://{rndstr}.gov"
        user_agent = (
            "Mozilla/5.0 (MacBook Air; M1 Mac OS X 11_4) AppleWebKit/605.1.15 "
            "(KHTML, like Gecko) Version/14.1.1 Safari/604.1"
        )
        save_api = WaybackMachineSaveAPI(url, user_agent, max_tries=3)
        save_api.save()


def test_sleep() -> None:
    """
    sleeping is actually very important for SaveAPI
    interface stability.
    The test checks that the time taken by sleep method
    is as intended.
    """
    url = "https://example.com"
    user_agent = (
        "Mozilla/5.0 (MacBook Air; M1 Mac OS X 11_4) AppleWebKit/605.1.15 "
        "(KHTML, like Gecko) Version/14.1.1 Safari/604.1"
    )
    save_api = WaybackMachineSaveAPI(url, user_agent)
    s_time = int(time.time())
    save_api.sleep(6)  # multiple of 3 sleep for 10 seconds
    e_time = int(time.time())
    assert (e_time - s_time) >= 10

    s_time = int(time.time())
    save_api.sleep(7)  # sleeps for 5 seconds
    e_time = int(time.time())
    assert (e_time - s_time) >= 5


def test_timestamp() -> None:
    url = "https://example.com"
    user_agent = (
        "Mozilla/5.0 (MacBook Air; M1 Mac OS X 11_4) AppleWebKit/605.1.15 "
        "(KHTML, like Gecko) Version/14.1.1 Safari/604.1"
    )
    save_api = WaybackMachineSaveAPI(url, user_agent)
    now = datetime.utcnow().strftime("%Y%m%d%H%M%S")
    save_api._archive_url = f"https://web.archive.org/web/{now}/{url}/"
    save_api.timestamp()
    assert save_api.cached_save is False
    now = "20100124063622"
    save_api._archive_url = f"https://web.archive.org/web/{now}/{url}/"
    save_api.timestamp()
    assert save_api.cached_save is True


def test_archive_url_parser() -> None:
    """
    Testing three regex for matches and also tests the response URL.
    """
    url = "https://example.com"
    user_agent = (
        "Mozilla/5.0 (MacBook Air; M1 Mac OS X 11_4) AppleWebKit/605.1.15 "
        "(KHTML, like Gecko) Version/14.1.1 Safari/604.1"
    )
    save_api = WaybackMachineSaveAPI(url, user_agent)

    h = (
        "\nSTART\nContent-Location: "
        "/web/20201126185327/https://www.scribbr.com/citing-sources/et-al"
        "\nEND\n"
    )
    save_api.headers = h  # type: ignore[assignment]

    expected_url = (
        "https://web.archive.org/web/20201126185327/"
        "https://www.scribbr.com/citing-sources/et-al"
    )
    assert save_api.archive_url_parser() == expected_url

    headers = {
        "Server": "nginx/1.15.8",
        "Date": "Sat, 02 Jan 2021 09:40:25 GMT",
        "Content-Type": "text/html; charset=UTF-8",
        "Transfer-Encoding": "chunked",
        "Connection": "keep-alive",
        "X-Archive-Orig-Server": "nginx",
        "X-Archive-Orig-Date": "Sat, 02 Jan 2021 09:40:09 GMT",
        "X-Archive-Orig-Transfer-Encoding": "chunked",
        "X-Archive-Orig-Connection": "keep-alive",
        "X-Archive-Orig-Vary": "Accept-Encoding",
        "X-Archive-Orig-Last-Modified": "Fri, 01 Jan 2021 12:19:00 GMT",
        "X-Archive-Orig-Strict-Transport-Security": "max-age=31536000, max-age=0;",
        "X-Archive-Guessed-Content-Type": "text/html",
        "X-Archive-Guessed-Charset": "utf-8",
        "Memento-Datetime": "Sat, 02 Jan 2021 09:40:09 GMT",
        "Link": (
            '<https://www.scribbr.com/citing-sources/et-al/>; rel="original", '
            "<https://web.archive.org/web/timemap/link/https://www.scribbr.com/"
            'citing-sources/et-al/>; rel="timemap"; type="application/link-format", '
            "<https://web.archive.org/web/https://www.scribbr.com/citing-sources/"
            'et-al/>; rel="timegate", <https://web.archive.org/web/20200601082911/'
            'https://www.scribbr.com/citing-sources/et-al/>; rel="first memento"; '
            'datetime="Mon, 01 Jun 2020 08:29:11 GMT", <https://web.archive.org/web/'
            "20201126185327/https://www.scribbr.com/citing-sources/et-al/>; "
            'rel="prev memento"; datetime="Thu, 26 Nov 2020 18:53:27 GMT", '
            "<https://web.archive.org/web/20210102094009/https://www.scribbr.com/"
            'citing-sources/et-al/>; rel="memento"; datetime="Sat, 02 Jan 2021 '
            '09:40:09 GMT", <https://web.archive.org/web/20210102094009/'
            "https://www.scribbr.com/citing-sources/et-al/>; "
            'rel="last memento"; datetime="Sat, 02 Jan 2021 09:40:09 GMT"'
        ),
        "Content-Security-Policy": (
            "default-src 'self' 'unsafe-eval' 'unsafe-inline' "
            "data: blob: archive.org web.archive.org analytics.archive.org "
            "pragma.archivelab.org",
        ),
        "X-Archive-Src": "spn2-20210102092956-wwwb-spn20.us.archive.org-8001.warc.gz",
        "Server-Timing": (
            "captures_list;dur=112.646325, exclusion.robots;dur=0.172010, "
            "exclusion.robots.policy;dur=0.158205, RedisCDXSource;dur=2.205932, "
            "esindex;dur=0.014647, LoadShardBlock;dur=82.205012, "
            "PetaboxLoader3.datanode;dur=70.750239, CDXLines.iter;dur=24.306278, "
            "load_resource;dur=26.520179"
        ),
        "X-App-Server": "wwwb-app200",
        "X-ts": "200",
        "X-location": "All",
        "X-Cache-Key": (
            "httpsweb.archive.org/web/20210102094009/"
            "https://www.scribbr.com/citing-sources/et-al/IN",
        ),
        "X-RL": "0",
        "X-Page-Cache": "MISS",
        "X-Archive-Screenname": "0",
        "Content-Encoding": "gzip",
    }

    save_api.headers = cast(CaseInsensitiveDict[str], headers)

    expected_url2 = (
        "https://web.archive.org/web/20210102094009/"
        "https://www.scribbr.com/citing-sources/et-al/"
    )
    assert save_api.archive_url_parser() == expected_url2

    expected_url_3 = (
        "https://web.archive.org/web/20171128185327/"
        "https://www.scribbr.com/citing-sources/et-al/US"
    )
    h = f"START\nX-Cache-Key: {expected_url_3}\nEND\n"
    save_api.headers = h  # type: ignore[assignment]

    expected_url4 = (
        "https://web.archive.org/web/20171128185327/"
        "https://www.scribbr.com/citing-sources/et-al/"
    )
    assert save_api.archive_url_parser() == expected_url4

    h = "TEST TEST TEST AND NO MATCH - TEST FOR RESPONSE URL MATCHING"
    save_api.headers = h  # type: ignore[assignment]
    save_api.response_url = (
        "https://web.archive.org/web/20171128185327/"
        "https://www.scribbr.com/citing-sources/et-al"
    )
    expected_url5 = (
        "https://web.archive.org/web/20171128185327/"
        "https://www.scribbr.com/citing-sources/et-al"
    )
    assert save_api.archive_url_parser() == expected_url5


def test_archive_url() -> None:
    """
    Checks the attribute archive_url's value when the save method was not
    explicitly invoked by the end-user but the save method was invoked implicitly
    by the archive_url method which is an attribute due to @property.
    """
    url = "https://example.com"
    user_agent = (
        "Mozilla/5.0 (MacBook Air; M1 Mac OS X 11_4) AppleWebKit/605.1.15 "
        "(KHTML, like Gecko) Version/14.1.1 Safari/604.1"
    )
    save_api = WaybackMachineSaveAPI(url, user_agent)
    save_api.saved_archive = (
        "https://web.archive.org/web/20220124063056/https://example.com/"
    )
    save_api._archive_url = save_api.saved_archive
    assert save_api.archive_url == save_api.saved_archive