import pytest
from conftest import DB, Response

import hircine.enums as enums
import hircine.plugins
import hircine.scraper.types as scraped
from hircine.scraper import ScrapeError, Scraper, ScrapeWarning


@pytest.fixture
def query_comic_scrapers(schema_execute):
    query = """
    query comicScrapers($id: Int!) {
        comicScrapers(id: $id) {
            __typename
            id
            name
        }
    }
    """

    async def _execute(id):
        return await schema_execute(query, {"id": id})

    return _execute


@pytest.fixture
def query_scrape_comic(schema_execute):
    query = """
    query scrapeComic($id: Int!, $scraper: String!) {
        scrapeComic(id: $id, scraper: $scraper) {
            __typename
            ... on ScrapeComicResult {
                data {
                    title
                    originalTitle
                    url
                    artists
                    category
                    censorship
                    characters
                    circles
                    date
                    direction
                    language
                    layout
                    rating
                    tags
                    worlds
                }
                warnings
            }
            ... on Error {
                message
            }
            ... on ScraperNotFoundError {
                name
            }
            ... on ScraperNotAvailableError {
                scraper
                comicId
            }
            ... on IDNotFoundError {
                id
            }
        }
    }
    """

    async def _execute(id, scraper):
        return await schema_execute(query, {"id": id, "scraper": scraper})

    return _execute


@pytest.fixture
def scrapers(empty_plugins):
    class GoodScraper(Scraper):
        name = "Good Scraper"
        is_available = True
        source = "good"

        def scrape(self):
            yield scraped.Title("Arid Savannah Adventures")
            yield scraped.OriginalTitle("Arid Savannah Hijinx")
            yield scraped.URL("file:///home/savannah/adventures")
            yield scraped.Language(enums.Language.EN)
            yield scraped.Date.from_iso("2010-07-05")
            yield scraped.Direction(enums.Direction["LEFT_TO_RIGHT"])
            yield scraped.Layout(enums.Layout.SINGLE)
            yield scraped.Rating(enums.Rating.SAFE)
            yield scraped.Category(enums.Category.MANGA)
            yield scraped.Censorship(enums.Censorship.NONE)
            yield scraped.Tag.from_string("animal:small")
            yield scraped.Tag.from_string("animal:medium")
            yield scraped.Tag.from_string("animal:big")
            yield scraped.Tag.from_string("animal:massive")
            yield scraped.Artist("alan smithee")
            yield scraped.Artist("david agnew")
            yield scraped.Character("greta giraffe")
            yield scraped.Character("bob bear")
            yield scraped.Character("rico rhinoceros")
            yield scraped.Character("ziggy zebra")
            yield scraped.Circle("archimedes")
            yield scraped.World("animal friends")

    class DuplicateScraper(Scraper):
        name = "Duplicate Scraper"
        is_available = True
        source = "dupe"

        def gen(self):
            yield scraped.Title("Arid Savannah Adventures")
            yield scraped.OriginalTitle("Arid Savannah Hijinx")
            yield scraped.URL("file:///home/savannah/adventures")
            yield scraped.Language(enums.Language.EN)
            yield scraped.Date.from_iso("2010-07-05")
            yield scraped.Direction(enums.Direction["LEFT_TO_RIGHT"])
            yield scraped.Layout(enums.Layout.SINGLE)
            yield scraped.Rating(enums.Rating.SAFE)
            yield scraped.Category(enums.Category.MANGA)
            yield scraped.Censorship(enums.Censorship.NONE)
            yield scraped.Tag.from_string("animal:small")
            yield scraped.Tag.from_string("animal:medium")
            yield scraped.Tag.from_string("animal:big")
            yield scraped.Tag.from_string("animal:massive")
            yield scraped.Artist("alan smithee")
            yield scraped.Artist("david agnew")
            yield scraped.Character("greta giraffe")
            yield scraped.Character("bob bear")
            yield scraped.Character("rico rhinoceros")
            yield scraped.Character("ziggy zebra")
            yield scraped.Circle("archimedes")
            yield scraped.World("animal friends")

        def scrape(self):
            yield from self.gen()
            yield from self.gen()

    class WarnScraper(Scraper):
        name = "Warn Scraper"
        is_available = True
        source = "warn"

        def warn_on_purpose(self, item):
            raise ScrapeWarning(f"Could not parse: {item}")

        def scrape(self):
            yield scraped.Title("Arid Savannah Adventures")
            yield lambda: self.warn_on_purpose("Arid Savannah Hijinx")
            yield scraped.Language(enums.Language.EN)

    class FailScraper(Scraper):
        name = "Fail Scraper"
        is_available = True
        source = "fail"

        def scrape(self):
            yield scraped.Title("Arid Savannah Adventures")
            raise ScrapeError("Could not continue")
            yield scraped.Language(enums.Language.EN)

    class UnavailableScraper(Scraper):
        name = "Unavailable Scraper"
        is_available = False
        source = "unavail"

        def scrape(self):
            yield None

    hircine.plugins.register_scraper("good", GoodScraper)
    hircine.plugins.register_scraper("dupe", DuplicateScraper)
    hircine.plugins.register_scraper("warn", WarnScraper)
    hircine.plugins.register_scraper("fail", FailScraper)
    hircine.plugins.register_scraper("unavail", UnavailableScraper)

    return [
        ("good", GoodScraper),
        ("dupe", DuplicateScraper),
        ("warn", WarnScraper),
        ("fail", FailScraper),
        ("unavail", UnavailableScraper),
    ]


@pytest.mark.anyio
async def test_comic_scrapers(gen_comic, query_comic_scrapers, scrapers):
    comic = await DB.add(next(gen_comic))
    response = Response(await query_comic_scrapers(comic.id))

    assert isinstance((response.data), list)

    available_scrapers = []
    for name, cls in sorted(scrapers, key=lambda s: s[1].name):
        instance = cls(comic)
        if instance.is_available:
            available_scrapers.append((name, cls))

    assert len(response.data) == len(available_scrapers)

    data = iter(response.data)
    for id, scraper in available_scrapers:
        field = next(data)
        assert field["__typename"] == "ComicScraper"
        assert field["id"] == id
        assert field["name"] == scraper.name


@pytest.mark.anyio
async def test_comic_empty_for_missing_comic(gen_comic, query_comic_scrapers, scrapers):
    response = Response(await query_comic_scrapers(1))

    assert response.data == []


@pytest.mark.anyio
async def test_scrape_comic(gen_comic, query_scrape_comic, scrapers):
    comic = await DB.add(next(gen_comic))

    response = Response(await query_scrape_comic(comic.id, "good"))
    response.assert_is("ScrapeComicResult")

    assert response.warnings == []

    scraped_comic = response.data["data"]

    assert scraped_comic["title"] == "Arid Savannah Adventures"
    assert scraped_comic["originalTitle"] == "Arid Savannah Hijinx"
    assert scraped_comic["url"] == "file:///home/savannah/adventures"
    assert scraped_comic["language"] == "EN"
    assert scraped_comic["date"] == "2010-07-05"
    assert scraped_comic["rating"] == "SAFE"
    assert scraped_comic["category"] == "MANGA"
    assert scraped_comic["direction"] == "LEFT_TO_RIGHT"
    assert scraped_comic["layout"] == "SINGLE"
    assert scraped_comic["tags"] == [
        "animal:small",
        "animal:medium",
        "animal:big",
        "animal:massive",
    ]
    assert scraped_comic["artists"] == ["alan smithee", "david agnew"]
    assert scraped_comic["characters"] == [
        "greta giraffe",
        "bob bear",
        "rico rhinoceros",
        "ziggy zebra",
    ]
    assert scraped_comic["circles"] == ["archimedes"]
    assert scraped_comic["worlds"] == ["animal friends"]


@pytest.mark.anyio
async def test_scrape_comic_removes_duplicates(gen_comic, query_scrape_comic, scrapers):
    comic = await DB.add(next(gen_comic))

    response = Response(await query_scrape_comic(comic.id, "dupe"))
    response.assert_is("ScrapeComicResult")

    assert response.warnings == []

    scraped_comic = response.data["data"]

    assert scraped_comic["title"] == "Arid Savannah Adventures"
    assert scraped_comic["originalTitle"] == "Arid Savannah Hijinx"
    assert scraped_comic["url"] == "file:///home/savannah/adventures"
    assert scraped_comic["language"] == "EN"
    assert scraped_comic["date"] == "2010-07-05"
    assert scraped_comic["rating"] == "SAFE"
    assert scraped_comic["category"] == "MANGA"
    assert scraped_comic["direction"] == "LEFT_TO_RIGHT"
    assert scraped_comic["layout"] == "SINGLE"
    assert scraped_comic["tags"] == [
        "animal:small",
        "animal:medium",
        "animal:big",
        "animal:massive",
    ]
    assert scraped_comic["artists"] == ["alan smithee", "david agnew"]
    assert scraped_comic["characters"] == [
        "greta giraffe",
        "bob bear",
        "rico rhinoceros",
        "ziggy zebra",
    ]
    assert scraped_comic["circles"] == ["archimedes"]
    assert scraped_comic["worlds"] == ["animal friends"]


@pytest.mark.anyio
async def test_scrape_comic_fails_comic_not_found(query_scrape_comic, scrapers):
    response = Response(await query_scrape_comic(1, "good"))
    response.assert_is("IDNotFoundError")

    assert response.id == 1
    assert response.message == "Comic ID not found: '1'"


@pytest.mark.anyio
async def test_scrape_comic_fails_scraper_not_found(
    gen_comic, query_scrape_comic, scrapers
):
    comic = await DB.add(next(gen_comic))

    response = Response(await query_scrape_comic(comic.id, "missing"))
    response.assert_is("ScraperNotFoundError")

    assert response.name == "missing"
    assert response.message == "Scraper not found: 'missing'"


@pytest.mark.anyio
async def test_scrape_comic_fails_scraper_not_available(
    gen_comic, query_scrape_comic, scrapers
):
    comic = await DB.add(next(gen_comic))

    response = Response(await query_scrape_comic(comic.id, "unavail"))
    response.assert_is("ScraperNotAvailableError")

    assert response.scraper == "unavail"
    assert response.comicId == comic.id
    assert response.message == f"Scraper unavail not available for comic ID {comic.id}"


async def test_scrape_comic_with_transformer(gen_comic, query_scrape_comic, scrapers):
    def keep(generator, info):
        for item in generator:
            match item:
                case scraped.Title():
                    yield item

    hircine.plugins.transformers = [keep]

    comic = await DB.add(next(gen_comic))

    response = Response(await query_scrape_comic(comic.id, "good"))
    response.assert_is("ScrapeComicResult")

    assert response.warnings == []

    scraped_comic = response.data["data"]

    assert scraped_comic["title"] == "Arid Savannah Adventures"
    assert scraped_comic["originalTitle"] is None
    assert scraped_comic["url"] is None
    assert scraped_comic["language"] is None
    assert scraped_comic["date"] is None
    assert scraped_comic["rating"] is None
    assert scraped_comic["category"] is None
    assert scraped_comic["censorship"] is None
    assert scraped_comic["direction"] is None
    assert scraped_comic["layout"] is None
    assert scraped_comic["tags"] == []
    assert scraped_comic["artists"] == []
    assert scraped_comic["characters"] == []
    assert scraped_comic["circles"] == []
    assert scraped_comic["worlds"] == []


@pytest.mark.anyio
async def test_scrape_comic_catches_warnings(gen_comic, query_scrape_comic, scrapers):
    comic = await DB.add(next(gen_comic))

    response = Response(await query_scrape_comic(comic.id, "warn"))
    response.assert_is("ScrapeComicResult")

    assert response.warnings == ["Could not parse: Arid Savannah Hijinx"]

    scraped_comic = response.data["data"]

    assert scraped_comic["title"] == "Arid Savannah Adventures"
    assert scraped_comic["originalTitle"] is None
    assert scraped_comic["language"] == "EN"
    assert scraped_comic["date"] is None
    assert scraped_comic["rating"] is None
    assert scraped_comic["category"] is None
    assert scraped_comic["direction"] is None
    assert scraped_comic["layout"] is None
    assert scraped_comic["tags"] == []
    assert scraped_comic["artists"] == []
    assert scraped_comic["characters"] == []
    assert scraped_comic["circles"] == []
    assert scraped_comic["worlds"] == []


@pytest.mark.anyio
async def test_scrape_comic_fails_with_scraper_error(
    gen_comic, query_scrape_comic, scrapers
):
    comic = await DB.add(next(gen_comic))

    response = Response(await query_scrape_comic(comic.id, "fail"))
    response.assert_is("ScraperError")
    assert response.message == "Scraping failed: Could not continue"