"""Tests for agenda.add_new_conference."""

from datetime import date, datetime
import typing

import lxml.html  # type: ignore[import-untyped]
import pytest
import yaml

from agenda import add_new_conference


def test_parse_osm_url_mlat_mlon() -> None:
    """OpenStreetMap URLs with mlat/mlon should parse."""
    result = add_new_conference.parse_osm_url(
        "https://www.openstreetmap.org/?mlat=51.5&mlon=-0.12"
    )
    assert result == (51.5, -0.12)


def test_extract_google_maps_latlon_at_pattern() -> None:
    """Google Maps @lat,lon URLs should parse."""
    result = add_new_conference.extract_google_maps_latlon(
        "https://www.google.com/maps/place/Venue/@51.5242464,-0.0997024,17z/"
    )
    assert result == (51.5242464, -0.0997024)


def test_url_has_year_component() -> None:
    """Only actual year or edition components should count as year-specific."""
    cases = [
        ("https://www.foss4gna.org/", False),
        ("https://foss4g.asia/2026/", True),
        ("https://2027.fossy.ca/", True),
        ("https://www.socallinuxexpo.org/scale/24x/", True),
        ("https://2026.stateofthebrowser.com/", True),
    ]
    for url, expected in cases:
        assert add_new_conference.url_has_year_component(url) is expected


def test_insert_sorted_allows_same_url_different_year_without_year_component() -> None:
    """The same non-year-specific URL can be reused for a different year."""
    conferences: list[dict[str, typing.Any]] = [
        {
            "name": "OldConf",
            "start": date(2025, 6, 1),
            "url": "https://example.com/conf",
        }
    ]
    new_conf: dict[str, typing.Any] = {
        "name": "NewConf",
        "start": date(2026, 6, 1),
        "url": "https://example.com/conf",
    }

    updated = add_new_conference.insert_sorted(conferences, new_conf)

    assert len(updated) == 2
    assert updated[1]["name"] == "NewConf"


def test_insert_sorted_supports_nested_dates() -> None:
    """Nested dates should be used for sorting."""
    conferences: list[dict[str, typing.Any]] = [
        {
            "name": "PyCascades",
            "dates": {
                "status": "approximate",
                "label": "March 2027",
                "earliest": date(2027, 3, 1),
                "latest": date(2027, 3, 31),
            },
        }
    ]
    new_conf: dict[str, typing.Any] = {
        "name": "FOSDEM",
        "dates": {
            "status": "tentative",
            "start": date(2027, 1, 30),
            "end": date(2027, 1, 31),
        },
    }

    updated = add_new_conference.insert_sorted(conferences, new_conf)

    assert [conf["name"] for conf in updated] == ["FOSDEM", "PyCascades"]


def test_insert_sorted_updates_inexact_existing_entry() -> None:
    """Exact dates should replace an existing inexact series entry."""
    conferences: list[dict[str, typing.Any]] = [
        {
            "name": "PyCascades",
            "series": "pycascades",
            "topic": "Python",
            "location": "Seattle, Washington",
            "dates": {
                "status": "approximate",
                "label": "March 2027",
                "earliest": date(2027, 3, 1),
                "latest": date(2027, 3, 31),
            },
            "url": "https://2027.pycascades.com/",
        }
    ]
    new_conf: dict[str, typing.Any] = {
        "name": "PyCascades",
        "series": "pycascades",
        "topic": "Python",
        "location": "Seattle, Washington",
        "dates": {
            "status": "exact",
            "start": date(2027, 3, 12),
            "end": date(2027, 3, 14),
        },
        "url": "https://2027.pycascades.com/",
        "venue": "Example Hall",
    }

    updated = add_new_conference.insert_sorted(conferences, new_conf)

    assert len(updated) == 1
    assert updated[0]["dates"]["status"] == "exact"
    assert updated[0]["dates"]["start"] == date(2027, 3, 12)
    assert updated[0]["venue"] == "Example Hall"


def test_normalize_dates_field_moves_legacy_dates() -> None:
    """Legacy start/end model output should be converted before writing YAML."""
    conf: dict[str, typing.Any] = {
        "name": "PyCon",
        "start": date(2026, 4, 10),
        "end": date(2026, 4, 12),
    }

    add_new_conference.normalize_dates_field(conf)

    assert "start" not in conf
    assert "end" not in conf
    assert conf["dates"] == {
        "status": "exact",
        "start": date(2026, 4, 10),
        "end": date(2026, 4, 12),
    }


def test_normalize_dates_field_parses_quoted_dates() -> None:
    """Quoted ISO dates from generated YAML should become date objects."""
    conf: dict[str, typing.Any] = {
        "name": "Git Merge",
        "dates": {
            "status": "exact",
            "start": "2026-09-16",
            "end": "2026-09-17",
        },
    }

    add_new_conference.normalize_dates_field(conf)

    assert conf["dates"]["start"] == date(2026, 9, 16)
    assert conf["dates"]["end"] == date(2026, 9, 17)


def test_validate_generated_conference_reports_missing_dates() -> None:
    """Missing generated dates should raise a clear importer error."""
    conf: dict[str, typing.Any] = {
        "name": "Git Merge",
        "topic": "Git",
        "location": "TBC",
    }

    with pytest.raises(ValueError, match="missing valid date information"):
        add_new_conference.validate_generated_conference(conf)


def test_build_prompt_includes_nested_dates_and_series() -> None:
    """The prompt should describe nested dates and known series IDs."""
    prompt = add_new_conference.build_prompt(
        "https://example.com",
        "Conference details",
        None,
        {
            "pycascades": {
                "name": "PyCascades",
                "topic": "Python",
                "usual_location": "Seattle, Washington",
                "country": "us",
            }
        },
    )

    assert "Do not output legacy top-level `start`, `end`, or `date_status`" in prompt
    assert "dates.status" in prompt
    assert "- pycascades: PyCascades" in prompt
    assert "March 2027" in prompt


def test_validate_country_normalises_name() -> None:
    """Country names should be normalised to alpha-2 codes."""
    conf: dict[str, typing.Any] = {"country": "United Kingdom"}

    add_new_conference.validate_country(conf)

    assert conf["country"] == "gb"


def test_normalise_end_field_defaults_single_day_date() -> None:
    """Non-Geomob conferences should default end to the start date."""
    conf: dict[str, typing.Any] = {
        "name": "PyCon",
        "start": date(2026, 4, 10),
    }

    add_new_conference.normalise_end_field(conf, "plain text")

    assert conf["end"] == date(2026, 4, 10)


def test_normalise_end_field_defaults_nested_exact_date() -> None:
    """Nested exact dates should get a default end date."""
    conf: dict[str, typing.Any] = {
        "name": "PyCon",
        "dates": {
            "status": "exact",
            "start": date(2026, 4, 10),
        },
    }

    add_new_conference.normalise_end_field(conf, "plain text")

    assert conf["dates"]["end"] == date(2026, 4, 10)


def test_normalise_end_field_sets_geomob_end_time() -> None:
    """Geomob conferences should default to a 22:00 end time."""
    conf: dict[str, typing.Any] = {
        "name": "Geomob London",
        "start": date(2026, 1, 28),
        "url": "https://thegeomob.com/post/jan-28th-2026-geomoblon-details",
    }

    add_new_conference.normalise_end_field(conf, "see you there")

    assert conf["end"] == datetime(2026, 1, 28, 22, 0)


def test_detect_page_coordinates_uses_first_supported_link() -> None:
    """Page coordinate detection should inspect anchor hrefs."""
    root = lxml.html.fromstring(
        (
            "<html><body>"
            '<a href="https://example.com">Example</a>'
            '<a href="https://www.openstreetmap.org/?mlat=51.5&mlon=-0.12">Map</a>'
            "</body></html>"
        )
    )

    assert add_new_conference.detect_page_coordinates(root) == (51.5, -0.12)


def test_add_new_conference_updates_yaml(
    tmp_path: typing.Any, monkeypatch: pytest.MonkeyPatch
) -> None:
    """The end-to-end import flow should append a generated conference."""
    yaml_path = tmp_path / "conferences.yaml"
    yaml_path.write_text(
        yaml.dump(
            [
                {
                    "name": "ExistingConf",
                    "start": date(2026, 4, 1),
                    "end": date(2026, 4, 2),
                    "url": "https://example.com/existing",
                }
            ],
            sort_keys=False,
        )
    )

    root = lxml.html.fromstring(
        (
            "<html><body>"
            '<a href="https://www.openstreetmap.org/?mlat=40.0&mlon=-74.0">Map</a>'
            "</body></html>"
        )
    )

    monkeypatch.setattr(add_new_conference, "fetch_webpage", lambda url: root)
    monkeypatch.setattr(
        add_new_conference,
        "webpage_to_text",
        lambda parsed: "Conference details",
    )
    monkeypatch.setattr(
        add_new_conference,
        "get_from_open_ai",
        lambda prompt: {
            "yaml": yaml.dump(
                {
                    "name": "NewConf",
                    "topic": "Tech",
                    "location": "New York",
                    "country": "United States",
                    "start": date(2026, 5, 3),
                    "url": "https://example.com/newconf",
                },
                sort_keys=False,
            )
        },
    )

    added = add_new_conference.add_new_conference(
        "https://example.com/newconf", str(yaml_path)
    )

    assert added is True
    written = yaml.safe_load(yaml_path.read_text())
    assert len(written) == 2
    assert written[1]["name"] == "NewConf"
    assert written[1]["country"] == "us"
    assert written[1]["dates"] == {
        "status": "exact",
        "start": date(2026, 5, 3),
        "end": date(2026, 5, 3),
    }
    assert written[1]["latitude"] == 40.0
    assert written[1]["longitude"] == -74.0


def test_add_new_conference_reuses_generic_url_for_new_year(
    tmp_path: typing.Any, monkeypatch: pytest.MonkeyPatch
) -> None:
    """Generic URLs with digits in the domain should not be skipped early."""
    yaml_path = tmp_path / "conferences.yaml"
    yaml_path.write_text(
        yaml.dump(
            [
                {
                    "name": "FOSS4G North America",
                    "series": "foss4g-north-america",
                    "dates": {
                        "status": "exact",
                        "start": date(2025, 11, 3),
                        "end": date(2025, 11, 5),
                    },
                    "url": "https://www.foss4gna.org/",
                }
            ],
            sort_keys=False,
        )
    )

    root = lxml.html.fromstring("<html><body>Conference details</body></html>")
    monkeypatch.setattr(add_new_conference, "fetch_webpage", lambda url: root)
    monkeypatch.setattr(
        add_new_conference,
        "webpage_to_text",
        lambda parsed: "FOSS4G North America 2026",
    )
    monkeypatch.setattr(
        add_new_conference, "detect_page_coordinates", lambda parsed: None
    )
    monkeypatch.setattr(
        add_new_conference,
        "get_from_open_ai",
        lambda prompt: {
            "yaml": yaml.dump(
                {
                    "name": "FOSS4G North America",
                    "series": "foss4g-north-america",
                    "topic": "Geospatial",
                    "location": "St. Louis, Missouri",
                    "country": "us",
                    "dates": {
                        "status": "exact",
                        "start": date(2026, 10, 26),
                        "end": date(2026, 10, 29),
                    },
                    "url": "https://www.foss4gna.org/",
                },
                sort_keys=False,
            )
        },
    )

    added = add_new_conference.add_new_conference(
        "https://www.foss4gna.org/", str(yaml_path)
    )

    assert added is True
    written = yaml.safe_load(yaml_path.read_text())
    assert len(written) == 2
    assert [conf["dates"]["start"].year for conf in written] == [2025, 2026]