"""Resolve-stage tests, replayed from tests/fixtures/bgg_cache — never online.

The transport below raises on any network attempt, proving every response
comes from the committed fixture cache.
"""

from __future__ import annotations

import csv
import json
import shutil
from pathlib import Path

import httpx
import pytest

from bggpipe.bgg_client import BGGClient
from bggpipe.config import Config
from bggpipe.models import GameVersion
from bggpipe.resolve import (
    Candidate,
    TitleEntry,
    _dominant,
    _score_version,
    load_titles,
    resolve_entry,
    run_resolve,
)

FIXTURES = Path(__file__).parent / "fixtures" / "bgg_cache"
TITLES_JSON = Path(__file__).parent / "data" / "titles.json"


def _no_network(request: httpx.Request) -> httpx.Response:
    raise AssertionError(f"test hit the network: {request.url}")


@pytest.fixture
def client() -> BGGClient:
    return BGGClient(
        cache_dir=FIXTURES,
        transport=httpx.MockTransport(_no_network),
        sleep=lambda s: pytest.fail("slept during fixture replay"),
    )


@pytest.fixture
def rows_by_title(client) -> dict[str, object]:
    entries = load_titles(TITLES_JSON)
    return {e.title_raw: resolve_entry(client, e) for e in entries}


def test_catan_auto_matches_base_game(rows_by_title):
    row = rows_by_title["Catan"]
    assert (row.match_status, row.bgg_id, row.bgg_name) == ("auto", 13, "CATAN")
    assert row.version_status == "version_unknown"  # no cues -> never guess


def test_wingspan_auto_with_version_from_cues(rows_by_title):
    row = rows_by_title["Wingspan"]
    assert (row.match_status, row.bgg_id) == ("auto", 266192)
    # cues: Stonemaier + 2019 + English -> the first edition, not the
    # 2020 printing (score 5 vs 3) and not the German edition
    assert row.version_status == "version_auto"
    assert row.version_id == 465063
    assert row.version_name == "English first edition"


def test_expansion_matches_expansion_not_base(rows_by_title):
    row = rows_by_title["Wingspan: European Expansion"]
    assert (row.match_status, row.bgg_id) == ("auto", 290448)
    assert row.type == "boardgameexpansion"


def test_wingspan_europe_spine_never_matches_base(rows_by_title):
    """The spec's canonical trap: a truncated spine must not auto-match."""
    row = rows_by_title["Wingspan Europe"]
    assert row.match_status == "unmatched"
    assert row.bgg_id is None


def test_accented_title_resolves(rows_by_title):
    row = rows_by_title["Café International"]
    assert (row.match_status, row.bgg_id) == ("auto", 373)


def test_same_name_editions_stay_ambiguous(rows_by_title):
    row = rows_by_title["Citadels"]
    assert row.match_status == "ambiguous"
    assert {c.bgg_id for c in row.candidates} == {478, 205398}
    # stats were fetched for the review UI
    assert all(c.owned is not None for c in row.candidates)


def test_nonsense_lands_unmatched(rows_by_title):
    row = rows_by_title["Blorvath: Quest of the Zzyzx"]
    assert row.match_status == "unmatched"


def test_run_resolve_writes_csv_and_is_idempotent(client, tmp_path):
    data_dir = tmp_path / "data"
    data_dir.mkdir()
    shutil.copy(TITLES_JSON, data_dir / "titles.json")
    cfg = Config(data_dir=data_dir)

    first = run_resolve(cfg, client=client)
    assert len(first) == 7

    with cfg.matches_path.open(newline="") as f:
        rows = list(csv.DictReader(f))
    assert len(rows) == 7
    by_title = {r["title_raw"]: r for r in rows}
    assert by_title["Catan"]["match_status"] == "auto"
    assert by_title["Citadels"]["match_status"] == "ambiguous"
    candidates = json.loads(by_title["Citadels"]["candidates_json"])
    assert len(candidates) == 2
    assert by_title["Wingspan"]["version_id"] == "465063"

    # second run: everything already in matches.csv is skipped, file unchanged
    before = cfg.matches_path.read_text()
    second = run_resolve(cfg, client=client)
    assert second == []
    assert cfg.matches_path.read_text() == before


# -- pure-logic unit tests (no fixtures) --------------------------------


def _cand(bgg_id, exact=True, owned=None, type_="boardgame"):
    return Candidate(
        bgg_id=bgg_id,
        name="X",
        year=2000,
        type=type_,
        exact=exact,
        fuzzy=100.0,
        owned=owned,
    )


def test_dominant_famous_game_beats_obscure_duplicate():
    top = [_cand(1, owned=50000), _cand(2, owned=300)]
    assert _dominant(top).bgg_id == 1


def test_dominant_refuses_mixed_types():
    top = [_cand(1, owned=50000), _cand(2, owned=300, type_="boardgameexpansion")]
    assert _dominant(top) is None


def test_dominant_refuses_close_call():
    top = [_cand(1, owned=50000), _cand(2, owned=20000)]
    assert _dominant(top) is None


def test_score_version_all_cues():
    entry = TitleEntry(
        title_raw="Wingspan",
        title_normalized="wingspan",
        publisher_hint="Stonemaier",
        year_hint=2019,
        language_hint="english",
    )
    version = GameVersion(
        version_id=1,
        name="English first edition",
        year=2019,
        publishers=("Stonemaier Games",),
        languages=("English",),
    )
    assert _score_version(entry, version) == 5


def test_score_version_no_overlap():
    entry = TitleEntry(
        title_raw="Wingspan",
        title_normalized="wingspan",
        publisher_hint="Feuerland",
        year_hint=2021,
        language_hint="german",
    )
    version = GameVersion(
        version_id=1,
        name="English first edition",
        year=2019,
        publishers=("Stonemaier Games",),
        languages=("English",),
    )
    assert _score_version(entry, version) == 0