from datetime import datetime, timedelta
from unittest.mock import patch

import pytest
import yaml
from app.shared.db import models
from app.shared.settings import Settings

from app.web.db import crud
authors = ["rick@example.com", "morty@example.com", "jerry@example.com"]


@pytest.fixture()
def test_data(db_session):

    # creates 3 users
    for email in authors:
        db_session.add(models.User(email=email))
    db_session.commit()
    assert db_session.query(models.User).count() == 3

    # creates 100 archives for 3 users over 2 months with repeating URLs
    for i in range(100):
        author = authors[i % 3]
        archive = models.Archive(
            id=f"archive-id-456-{i}",
            url=f"https://example-{i%3}.com",
            result={},
            public=author == "jerry@example.com",
            author_id=author,
            group_id="spaceship" if author == "morty@example.com" and i % 2 == 0 else None,
            created_at=datetime(2021, (i % 2) + 1, (i % 25) + 1)
        )
        if i % 5 == 0:
            archive.tags.append(models.Tag(id=f"tag-{i}"))
        if i % 10 == 0:
            archive.tags.append(models.Tag(id=f"tag-second-{i}"))
        if i % 4 == 0:
            archive.tags.append(models.Tag(id=f"tag-third-{i}"))
        for j in range(10):
            archive.urls.append(models.ArchiveUrl(url=f"https://example-{i}.com/{j}", key=f"media_{j}"))
        db_session.add(archive)

    # creates a sheet for each user
    for i, email in enumerate(authors):
        db_session.add(models.Sheet(id=f"sheet-{i}", name=f"sheet-{i}", author_id=email, group_id=None, frequency="daily"))
        if email == "rick@example.com":
            db_session.add(models.Sheet(id=f"sheet-{i}-2", name=f"sheet-{i}-2", author_id=email, group_id="spaceship", frequency="hourly"))

    db_session.commit()

    assert db_session.query(models.Archive).count() == 100
    assert db_session.query(models.Tag).count() == 20 + 10 + 25
    assert db_session.query(models.ArchiveUrl).count() == 1000
    assert db_session.query(models.ArchiveUrl).filter(models.ArchiveUrl.archive_id == "archive-id-456-0").count() == 10

    # setup groups
    assert db_session.query(models.Group).count() == 0
    from app.web.db import crud
    crud.upsert_user_groups(db_session)
    assert db_session.query(models.Group).count() == 4
    assert db_session.query(models.User).count() == 3


def test_search_archives_by_url(test_data, db_session):
    from app.web.config import ALLOW_ANY_EMAIL

    # rick's archives are private
    assert len(crud.search_archives_by_url(db_session, "https://example-0.com", "rick@example.com", True, False)) == 34
    assert len(crud.search_archives_by_url(db_session, "https://example-0.com", "rick@example.com", [], False)) == 34
    assert len(crud.search_archives_by_url(db_session, "https://example-0.com", "rick@example.com", [], True)) == 34
    assert len(crud.search_archives_by_url(db_session, "https://example-0.com", ALLOW_ANY_EMAIL, [], False)) == 34
    assert len(crud.search_archives_by_url(db_session, "https://example-0.com", ALLOW_ANY_EMAIL, True, False)) == 34
    assert len(crud.search_archives_by_url(db_session, "https://example-0.com", "morty@example.com", [], False)) == 0
    assert len(crud.search_archives_by_url(db_session, "https://example-0.com", "morty@example.com", [], True)) == 0

    # morty's archives are public but half are in spaceship group
    assert len(crud.search_archives_by_url(db_session, "https://example-1.com", "rick@example.com", ["spaceship"], False)) == 16
    assert len(crud.search_archives_by_url(db_session, "https://example-1.com", "rick@example.com", True, False)) == 16
    assert len(crud.search_archives_by_url(db_session, "https://example-1.com", "jerry@example.com", True, True)) == 16

    # jerry's archives are public
    assert len(crud.search_archives_by_url(db_session, "https://example-2.com", "jerry@example.com", [], True)) == 33
    assert len(crud.search_archives_by_url(db_session, "https://example-2.com", "rick@example.com", [], True)) == 33

    # fuzzy search
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False)) == 100
    assert len(crud.search_archives_by_url(db_session, "https://EXAMPLE", ALLOW_ANY_EMAIL, False, False)) == 100
    assert len(crud.search_archives_by_url(db_session, "2.com", ALLOW_ANY_EMAIL, False, False)) == 33

    # absolute search
    assert len(crud.search_archives_by_url(db_session, "example-2.com", ALLOW_ANY_EMAIL, [], False, absolute_search=True)) == 0
    assert len(crud.search_archives_by_url(db_session, "https://example-2.com", ALLOW_ANY_EMAIL, [], False, absolute_search=True)) == 33

    # archived_after
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, True, True, archived_after=datetime(2010, 1, 1))) == 100
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, archived_after=datetime(2021, 1, 15))) == 70
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, archived_after=datetime(2031, 1, 1))) == 0

    # archived before
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, archived_before=datetime(2010, 1, 1))) == 0
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, archived_before=datetime(2021, 1, 15))) == 28
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, archived_before=datetime(2031, 1, 1))) == 100

    # archived before and after
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, archived_after=datetime(2001, 1, 1), archived_before=datetime(2031, 1, 11))) == 100
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, archived_after=datetime(2021, 1, 14), archived_before=datetime(2021, 1, 16))) == 2

    # limit
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, limit=10)) == 10
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, limit=-1)) == 1

    # skip
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, False, False, skip=10)) == 90


def test_search_archives_by_email(test_data, db_session):
    from app.web.config import ALLOW_ANY_EMAIL

    # lower/upper case
    assert len(crud.search_archives_by_email(db_session, "rick@example.com")) == 34

    # ALLOW_ANY_EMAIL is not a user
    assert len(crud.search_archives_by_email(db_session, ALLOW_ANY_EMAIL)) == 0

    # most recent first
    a1 = crud.search_archives_by_email(db_session, "rick@example.com", limit=1)
    assert len(a1) == 1
    assert a1[0].created_at == datetime(2021, 2, 25)

    # earliest is the last
    a2 = crud.search_archives_by_email(db_session, "rick@example.com", skip=33)
    assert len(a2) == 1
    assert a2[0].created_at == datetime(2021, 1, 1)


@patch("app.web.db.crud.DATABASE_QUERY_LIMIT", new=25)
def test_max_query_limit(test_data, db_session):
    from app.web.config import ALLOW_ANY_EMAIL

    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, [], False)) == 25
    assert len(crud.search_archives_by_url(db_session, "https://example", ALLOW_ANY_EMAIL, True, True, limit=1000)) == 25

    assert len(crud.search_archives_by_email(db_session, "rick@example.com")) == 25
    assert len(crud.search_archives_by_email(db_session, "rick@example.com", limit=1000)) == 25


def test_soft_delete(test_data, db_session):
    # none deleted yet
    db_session.query(models.Archive).filter(models.Archive.id == "archive-id-456-0").first() is not None
    assert db_session.query(models.Archive).filter(models.Archive.deleted == True).count() == 0

    # delete
    assert crud.soft_delete_archive(db_session, "archive-id-456-0", "rick@example.com") == True

    # ensure soft delete
    assert db_session.query(models.Archive).filter(models.Archive.deleted == True).count() == 1
    db_session.query(models.Archive).filter(models.Archive.id == "archive-id-456-0").first() is None

    # already deleted
    assert crud.soft_delete_archive(db_session, "archive-id-456-0", "rick@example.com") == False


def test_count_archives(test_data, db_session):
    assert crud.count_archives(db_session) == 100
    db_session.query(models.Archive).filter(models.Archive.id == "archive-id-456-0").delete()
    db_session.commit()
    assert crud.count_archives(db_session) == 99


def test_count_archive_urls(test_data, db_session):
    assert crud.count_archive_urls(db_session) == 1000
    db_session.query(models.ArchiveUrl).filter(models.ArchiveUrl.url == "https://example-0.com/0").delete()
    db_session.commit()
    assert crud.count_archive_urls(db_session) == 999

    db_session.query(models.Archive).filter(models.Archive.id == "archive-id-456-0").delete()
    db_session.commit()
    # no Cascade is enabled
    assert crud.count_archives(db_session) == 99
    assert crud.count_archive_urls(db_session) == 999


def test_count_users(test_data, db_session):
    assert crud.count_users(db_session) == 3
    db_session.query(models.User).filter(models.User.email == "rick@example.com").delete()
    db_session.commit()
    assert crud.count_users(db_session) == 2


def test_count_by_users_since(test_data, db_session):
    from app.web.db import crud

    # 100y window
    assert len(cu := crud.count_by_user_since(db_session, 60 * 60 * 24 * 31 * 12 * 100)) == 3
    assert cu[0].total == 34
    assert cu[1].total == 33
    assert cu[2].total == 33


def test_upsert_group(test_data, db_session):
    assert db_session.query(models.Group).count() == 4

    repeatable_params = ["desc 1", "orch.yaml", "sheet.yaml", "service_account_email@example.com", {"read": ["all"]}, ["example.com"]]

    assert (g1 := crud.upsert_group(db_session, "spaceship", *repeatable_params)) is not None
    assert g1.id == "spaceship"
    assert g1.description == "desc 1"
    assert g1.orchestrator == "orch.yaml"
    assert g1.orchestrator_sheet == "sheet.yaml"
    assert g1.service_account_email == "service_account_email@example.com"
    assert g1.permissions == {"read": ["all"]}
    assert g1.domains == ["example.com"]
    assert len(g1.users) == 2
    assert [u.email for u in g1.users] == ["rick@example.com", "morty@example.com"]

    assert (g2 := crud.upsert_group(db_session, "interdimensional", *repeatable_params)) is not None
    assert g2.id == "interdimensional"
    assert len(g2.users) == 1
    assert [u.email for u in g2.users] == ["rick@example.com"]

    assert (g3 := crud.upsert_group(db_session, "this-is-a-new-group", *repeatable_params)) is not None
    assert g3.id == "this-is-a-new-group"
    assert len(g3.users) == 0

    assert db_session.query(models.Group).count() == 5


def test_upsert_user_groups(db_session):
    @patch('app.web.db.crud.get_settings', new=lambda: bad_setings)
    def test_missing_yaml(db_session):
        with pytest.raises(FileNotFoundError):
            crud.upsert_user_groups(db_session)

    @patch('app.web.db.crud.get_settings', new=lambda: bad_setings)
    def test_broken_yaml(db_session):
        with pytest.raises(yaml.YAMLError):
            crud.upsert_user_groups(db_session)

    bad_setings = Settings(_env_file=".env.test")

    bad_setings.USER_GROUPS_FILENAME = "app/tests/user-groups.test.missing.yaml"
    test_missing_yaml(db_session)

    bad_setings.USER_GROUPS_FILENAME = "app/tests/user-groups.test.broken.yaml"
    test_broken_yaml(db_session)


def test_create_sheet(db_session):
    assert db_session.query(models.Sheet).count() == 0

    s = crud.create_sheet(db_session, "sheet-id-123", "sheet name", "email@example.com", "group-id", "hourly")
    assert s is not None
    assert s.id == "sheet-id-123"
    assert s.name == "sheet name"
    assert s.author_id == "email@example.com"
    assert s.group_id == "group-id"
    assert s.frequency == "hourly"

    assert db_session.query(models.Sheet).count() == 1

    # duplicate id
    import sqlalchemy
    with pytest.raises(sqlalchemy.exc.IntegrityError):
        crud.create_sheet(db_session, "sheet-id-123", "I thought this was another sheet", "email", "group-id", "hourly")


def test_get_user_sheet(test_data, db_session):
    assert crud.get_user_sheet(db_session, "", "sheet-0") is None
    assert crud.get_user_sheet(db_session, "morty@example.com", "sheet-0") is None

    assert crud.get_user_sheet(db_session, "rick@example.com", "sheet-0") is not None
    assert crud.get_user_sheet(db_session, "rick@example.com", "sheet-0-2") is not None
    assert crud.get_user_sheet(db_session, "morty@example.com", "sheet-1") is not None


def test_get_user_sheets(test_data, db_session):
    assert len(crud.get_user_sheets(db_session, "")) == 0
    rick_sheets = crud.get_user_sheets(db_session, "rick@example.com")
    assert len(rick_sheets) == 2
    assert [s.id for s in rick_sheets] == ["sheet-0", "sheet-0-2"]
    assert len(crud.get_user_sheets(db_session, "morty@example.com")) == 1


def test_delete_sheet(test_data, db_session):
    assert crud.delete_sheet(db_session, "sheet-0", "") == False
    assert crud.delete_sheet(db_session, "sheet-0", "rick@example.com") == True
    assert crud.delete_sheet(db_session, "sheet-0", "rick@example.com") == False


@pytest.mark.asyncio
async def test_find_by_store_until(async_db_session):
    # Add archives with different store_until dates
    now = datetime.now()
    archive1 = models.Archive(
        id="archive-expired-1",
        url="https://example-expired-1.com",
        result={},
        author_id="rick@example.com",
        store_until=now - timedelta(days=1)
    )
    archive2 = models.Archive(
        id="archive-expired-2",
        url="https://example-expired-2.com",
        result={},
        author_id="rick@example.com",
        store_until=now - timedelta(hours=1)
    )
    archive3 = models.Archive(
        id="archive-active",
        url="https://example-active.com",
        result={},
        author_id="rick@example.com",
        store_until=now + timedelta(days=1)
    )
    async_db_session.add_all([archive1, archive2, archive3])
    await async_db_session.commit()

    # Should find 2 expired archives
    expired = await crud.find_by_store_until(async_db_session, now)
    assert len(list(expired)) == 2

    # Should find 1 archive expired before 2 hours ago
    expired = await crud.find_by_store_until(async_db_session, now - timedelta(hours=2))
    assert len(list(expired)) == 1

    # Should find no archives expired before 2 days ago
    expired = await crud.find_by_store_until(async_db_session, now - timedelta(days=2))
    assert len(list(expired)) == 0

    # Should not find deleted archives
    archive1.deleted = True
    await async_db_session.commit()
    expired = await crud.find_by_store_until(async_db_session, now)
    assert len(list(expired)) == 1


@pytest.mark.asyncio
async def test_get_sheets_by_id_hash(async_db_session):
    # Add test data
    authors = ["rick@example.com", "morty@example.com", "jerry@example.com"]
    sheets = [
        models.Sheet(id="sheet-0", name="sheet-0", author_id=authors[0], group_id=None, frequency="daily"),
        models.Sheet(id="sheet-0-2", name="sheet-0-2", author_id=authors[0], group_id="spaceship", frequency="hourly"),
        models.Sheet(id="sheet-1", name="sheet-1", author_id=authors[1], group_id=None, frequency="daily"),
        models.Sheet(id="sheet-2", name="sheet-2", author_id=authors[2], group_id=None, frequency="daily")
    ]
    async_db_session.add_all(sheets)
    await async_db_session.commit()

    with patch("app.web.db.crud.fnv1a_hash_mod", return_value=1):
        # Test retrieving hourly sheets
        hourly_sheets = await crud.get_sheets_by_id_hash(async_db_session, "hourly", 4, 1)
        assert len(hourly_sheets) == 1
        assert hourly_sheets[0].id == "sheet-0-2"
        assert hourly_sheets[0].frequency == "hourly"

        # Test retrieving daily sheets
        daily_sheets = await crud.get_sheets_by_id_hash(async_db_session, "daily", 4, 1)
        assert len(daily_sheets) == 3
        assert all(sheet.frequency == "daily" for sheet in daily_sheets)
        assert {sheet.id for sheet in daily_sheets} == {"sheet-0", "sheet-1", "sheet-2"}

        # Test with non-matching hash
        no_sheets = await crud.get_sheets_by_id_hash(async_db_session, "daily", 4, 3)
        assert len(no_sheets) == 0

        # Test with non-existent frequency
        weekly_sheets = await crud.get_sheets_by_id_hash(async_db_session, "weekly", 4, 1)
        assert len(weekly_sheets) == 0


@pytest.mark.asyncio
async def test_delete_stale_sheets(async_db_session):
    from datetime import datetime, timedelta
    from sqlalchemy.sql import select

    now = datetime.now()
    active_date = now - timedelta(days=5)
    stale_date = now - timedelta(days=15)

    # Create test sheets with different last_url_archived_at dates
    sheets = [
        models.Sheet(
            id="sheet-active-1",
            name="Active Sheet 1",
            author_id="rick@example.com",
            frequency="daily",
            last_url_archived_at=active_date
        ),
        models.Sheet(
            id="sheet-active-2",
            name="Active Sheet 2",
            author_id="morty@example.com",
            frequency="hourly",
            last_url_archived_at=active_date
        ),
        models.Sheet(
            id="sheet-stale-1",
            name="Stale Sheet 1",
            author_id="rick@example.com",
            frequency="daily",
            last_url_archived_at=stale_date
        ),
        models.Sheet(
            id="sheet-stale-2",
            name="Stale Sheet 2",
            author_id="morty@example.com",
            frequency="daily",
            last_url_archived_at=stale_date
        )
    ]
    async_db_session.add_all(sheets)
    await async_db_session.commit()

    # Should not delete sheets with 20 days inactivity threshold
    deleted = await crud.delete_stale_sheets(async_db_session, 20)
    assert len(deleted) == 0  # No sheets should be deleted
    result = await async_db_session.execute(select(models.Sheet))
    assert len(list(result.scalars())) == 4  # All sheets should remain

    # Should delete sheets with 7 days inactivity threshold
    deleted = await crud.delete_stale_sheets(async_db_session, 7)
    assert len(deleted) == 2  # Two authors affected
    assert len(deleted["rick@example.com"]) == 1  # One sheet deleted for Rick
    assert len(deleted["morty@example.com"]) == 1  # One sheet deleted for Morty
    assert deleted["rick@example.com"][0].id == "sheet-stale-1"
    assert deleted["morty@example.com"][0].id == "sheet-stale-2"

    # Verify only active sheets remain
    result = await async_db_session.execute(select(models.Sheet))
    remaining = list(result.scalars())
    assert len(remaining) == 2
    assert {s.id for s in remaining} == {"sheet-active-1", "sheet-active-2"}

    # Running again should not delete anything
    deleted = await crud.delete_stale_sheets(async_db_session, 7)
    assert len(deleted) == 0