"""The location layer: stores, fit epistemics, inheritance, CSV import."""

from __future__ import annotations

import json

import pytest
import typer

from bggpipe.config import Config
from bggpipe.shelves import (
    effective_location,
    fits_opening,
    import_assignments,
    load_furniture,
    new_opening_id,
    opening_report,
    save_furniture,
)


def _entry(name="Game", w=11.6, length=11.6, d=2.8, **extra):
    dims = (
        {"width_in": w, "length_in": length, "depth_in": d, "source": "version"}
        if w
        else {"width_in": None, "length_in": None, "depth_in": None, "source": "absent"}
    )
    return {"name": name, "dims": dims, **extra}


KALLAX = {
    "id": "k1",
    "label": "A1",
    "zone": "party",
    "width_in": 13.25,
    "height_in": 13.25,
    "depth_in": 15.4,
}
DOUBLE_WIDE = {
    "id": "dw",
    "label": "wide top",
    "zone": "big boxes",
    "width_in": 26.5,
    "height_in": 13.25,
    "depth_in": 15.4,
}
TRAVEL = {"id": "travel", "label": "travel case", "zone": ""}


def test_fits_opening_speaks_the_house_language():
    assert fits_opening(_entry(), KALLAX) is True
    # 17" box: fails the cube, fits the double-wide — the acceptance case
    big = _entry("Bugs in the Kitchen", 11.5, 17, 2.25)
    assert fits_opening(big, KALLAX) is False
    assert fits_opening(big, DOUBLE_WIDE) is True
    # no game dims -> can't verify, never "fits"
    assert fits_opening(_entry("Mystery", w=None), KALLAX) is None
    # a virtual location imposes no limits
    assert fits_opening(big, TRAVEL) is None


def test_opening_report_counts_stack_and_warns():
    thin = _entry("Thin", 11, 11, 2)
    thick = _entry("Thick", 11, 11, 4)
    unmeasured = _entry("Mystery", w=None)
    report = opening_report(KALLAX, [("a", thin), ("b", thick), ("c", unmeasured)])
    assert report["games"] == 3
    assert report["stacked_in"] == 6
    assert report["unmeasured"] == 1
    assert report["overfull"] is False
    # seven thick boxes overflow a 13.25" interior
    stack = [(str(i), thick) for i in range(7)]
    assert opening_report(KALLAX, stack)["overfull"] is True
    # a misfit is named even when the stack has room
    report = opening_report(KALLAX, [("a", _entry("Too Long", 11.5, 17, 2.25))])
    assert report["misfits"] == ["Too Long"]


def test_effective_location_inherits_from_container():
    games = {
        "173634": _entry("Trove", bgg_id=173634),
        "999": _entry("Witchdoctor", bgg_id=999, stored_in="173634"),
        "13": _entry("Catan", bgg_id=13),
    }
    locations = {"173634": {"opening_id": "k1", "note": "top shelf"}}
    oid, note, via = effective_location("999", games["999"], games, locations)
    assert (oid, note, via) == ("k1", "top shelf", "173634")
    # the container itself reads its own record
    assert effective_location("173634", games["173634"], games, locations)[2] is None
    # unassigned, uncontained: unshelved
    assert effective_location("13", games["13"], games, locations) == (None, "", None)


def test_opening_ids_are_stable_and_unique():
    units = [
        {
            "name": "Den Kallax",
            "openings": [{"id": "den-kallax-a1", "label": "A1", "zone": ""}],
        }
    ]
    assert new_opening_id(units, "Den Kallax", "A2") == "den-kallax-a2"
    assert new_opening_id(units, "Den Kallax", "A1") == "den-kallax-a1-2"


def test_furniture_round_trip_and_corrupt_store(tmp_path):
    cfg = Config(data_dir=tmp_path / "data")
    cfg.data_dir.mkdir(parents=True)
    units = [{"name": "Den", "openings": [KALLAX, DOUBLE_WIDE]}]
    save_furniture(cfg, units)
    assert load_furniture(cfg) == units
    cfg.furniture_path.write_text("{torn")
    with pytest.raises(ValueError, match="furniture.json is corrupt"):
        load_furniture(cfg)


def _import_cfg(tmp_path):
    cfg = Config(data_dir=tmp_path / "data")
    cfg.data_dir.mkdir(parents=True)
    cfg.games_path.write_text(
        json.dumps(
            {
                "1": _entry("Catan", 11.6, 11.6, 3, bgg_id=1),
                "2": _entry("Bugs in the Kitchen", 11.5, 17, 2.25, bgg_id=2),
                "3": _entry("Witchdoctor", 8, 8, 2, bgg_id=3, stored_in="1"),
                "4a": _entry("Twin", 8, 8, 2, bgg_id=40),
                "4b": _entry("Twin", 8, 8, 2, bgg_id=41),
            }
        )
    )
    save_furniture(
        cfg,
        [
            {"name": "Den Kallax", "openings": [KALLAX]},
            {"name": "Loft", "openings": [DOUBLE_WIDE, TRAVEL]},
        ],
    )
    return cfg


def test_csv_import_assigns_and_rejects_honestly(tmp_path, capsys):
    cfg = _import_cfg(tmp_path)
    plan = tmp_path / "plan.csv"
    plan.write_text(
        "name,opening\n"
        "Catan,A1\n"  # by label
        "Bugs in the Kitchen,dw\n"  # by id, needs the double-wide
        "Bugs in the Kitchen,A1\n"  # doesn't fit the cube: reject
        "Witchdoctor,A1\n"  # contained: reject
        "Twin,A1\n"  # two copies: reject
        "Ghost Game,A1\n"  # unknown name: reject
        "Catan,Z9\n"  # unknown opening: reject
    )
    result = import_assignments(cfg, plan)
    assert result["assigned"] == 2
    assert len(result["rejects"]) == 5
    saved = json.loads(cfg.locations_path.read_text())
    assert saved["1"]["opening_id"] == "k1"
    assert saved["2"]["opening_id"] == "dw"
    out = capsys.readouterr().out
    assert "doesn't fit" in out and "lives inside another box" in out
    assert "matches 2 copies" in out and "no game by that name" in out


def test_import_without_furniture_exits_with_guidance(tmp_path):
    cfg = Config(data_dir=tmp_path / "data")
    cfg.data_dir.mkdir(parents=True)
    cfg.games_path.write_text("{}")
    plan = tmp_path / "plan.csv"
    plan.write_text("name,opening\n")
    with pytest.raises(typer.Exit):
        import_assignments(cfg, plan)


# -- web layer ----------------------------------------------------------


def _web(tmp_path, games):
    import httpx
    from fastapi.testclient import TestClient

    from bggpipe.bgg_client import BGGClient
    from bggpipe.resolve import write_matches
    from bggpipe.webreview import create_app

    cfg = Config(data_dir=tmp_path / "data", photos_dir=tmp_path / "photos")
    cfg.photos_dir.mkdir(parents=True)
    cfg.data_dir.mkdir(parents=True)
    write_matches(cfg.matches_path, [])
    cfg.games_path.write_text(json.dumps(games))
    client = BGGClient(
        cache_dir=tmp_path / "no_cache",
        transport=httpx.MockTransport(
            lambda req: httpx.Response(401, text="Unauthorized")
        ),
    )
    return TestClient(create_app(cfg, client=client)), cfg


def test_acceptance_full_furniture_flow_without_touching_json(tmp_path):
    """The spec's bar: two double-wide openings above three rows of four
    cubes, plus two bookcases of shelves, plus a travel case — expressed
    entirely through the endpoints the UI calls."""
    web, cfg = _web(tmp_path, {})

    assert (
        web.post("/api/furniture/add-unit", json={"name": "Den wall"}).status_code
        == 200
    )
    # two double-wides, one at a time
    for label in ("wide left", "wide right"):
        web.post(
            "/api/furniture/add-openings",
            json={
                "unit": "Den wall",
                "label": label,
                "zone": "big boxes",
                "width_in": 26.5,
                "height_in": 13.25,
                "depth_in": 15.4,
            },
        )
    # three rows of four cubes as a grid
    web.post(
        "/api/furniture/add-openings",
        json={
            "unit": "Den wall",
            "rows": 3,
            "cols": 4,
            "zone": "party",
            "width_in": 13.25,
            "height_in": 13.25,
            "depth_in": 15.4,
        },
    )
    for name in ("Bookcase north", "Bookcase south"):
        web.post("/api/furniture/add-unit", json={"name": name})
        web.post(
            "/api/furniture/add-openings",
            json={
                "unit": name,
                "rows": 5,
                "cols": 1,
                "zone": "long games",
                "width_in": 30.75,
                "height_in": 13,
                "depth_in": 11,
            },
        )
    web.post("/api/furniture/add-unit", json={"name": "Travel"})
    web.post(
        "/api/furniture/add-openings",
        json={
            "unit": "Travel",
            "label": "travel case",
        },
    )

    state = web.get("/api/shelves").json()
    counts = {u["name"]: len(u["openings"]) for u in state["units"]}
    assert counts == {
        "Den wall": 14,
        "Bookcase north": 5,
        "Bookcase south": 5,
        "Travel": 1,
    }
    # the store round-trips as plain committed JSON
    saved = json.loads(cfg.furniture_path.read_text())["units"]
    assert saved[0]["openings"][0]["label"] == "wide left"
    assert saved[-1]["openings"][0].get("width_in") is None  # virtual

    # editable, deletable, reorderable
    first_cube = saved[0]["openings"][2]["id"]
    web.post("/api/furniture/edit-opening", json={"id": first_cube, "zone": "kids"})
    web.post("/api/furniture/move-opening", json={"id": first_cube, "direction": -1})
    web.post(
        "/api/furniture/delete-opening", json={"id": saved[0]["openings"][3]["id"]}
    )
    saved2 = json.loads(cfg.furniture_path.read_text())["units"]
    assert len(saved2[0]["openings"]) == 13
    assert saved2[0]["openings"][1]["id"] == first_cube  # moved up one


def test_locate_flow_and_stored_in_refusal(tmp_path):
    games = {
        "1": {
            "bgg_id": 1,
            "name": "Trove",
            "dims": {
                "width_in": 12,
                "length_in": 12,
                "depth_in": 4,
                "source": "version",
            },
        },
        "2": {"bgg_id": 2, "name": "Witchdoctor", "stored_in": "1"},
        "3": {
            "bgg_id": 3,
            "name": "Longboi",
            "dims": {
                "width_in": 11.5,
                "length_in": 17,
                "depth_in": 2.25,
                "source": "version",
            },
        },
    }
    web, cfg = _web(tmp_path, games)
    web.post("/api/furniture/add-unit", json={"name": "Den"})
    web.post(
        "/api/furniture/add-openings",
        json={
            "unit": "Den",
            "rows": 1,
            "cols": 2,
            "zone": "",
            "width_in": 13.25,
            "height_in": 13.25,
            "depth_in": 15.4,
        },
    )
    opening = web.get("/api/shelves").json()["units"][0]["openings"][0]["id"]

    # a contained game refuses direct assignment, naming its container
    res = web.post("/api/locate", json={"key": "2", "opening_id": opening})
    assert res.status_code == 409 and "Trove" in res.json()["detail"]

    # the container shelves; its contents ride along into the opening
    assert (
        web.post("/api/locate", json={"key": "1", "opening_id": opening}).status_code
        == 200
    )
    state = web.get("/api/shelves").json()
    resident = state["units"][0]["openings"][0]["resident_games"]
    assert {g["name"] for g in resident} == {"Trove", "Witchdoctor"}
    assert next(g for g in resident if g["name"] == "Witchdoctor")["inherited"]

    # suggestions never offer an opening the game can't fit
    unshelved = state["unshelved"]
    longboi = next(g for g in unshelved if g["name"] == "Longboi")
    assert longboi["suggestions"] == []  # 17" beats every 13.25" cube

    # the library list knows where everything lives
    lib = {g["name"]: g for g in web.get("/api/library").json()}
    assert lib["Trove"]["location"]["text"] == "Den · A1"
    assert lib["Witchdoctor"]["location"]["via"] == "1"
    assert lib["Longboi"]["location"]["text"] == ""

    # a virtual note without an opening reads as the location
    web.post("/api/locate", json={"key": "3", "note": "lent to Sarah, June"})
    lib = {g["name"]: g for g in web.get("/api/library").json()}
    assert lib["Longboi"]["location"]["text"] == "lent to Sarah, June"


def test_shelves_page_serves_with_phone_sheet(tmp_path):
    """Phone smoke: the page serves, and the template carries the
    bottom-sheet structure the mobile styles dock to the thumb."""
    web, _ = _web(tmp_path, {})
    html = web.get("/shelves").text
    assert 'id="opensheet"' in html and 'id="sheetsearch"' in html
    assert 'href="/shelves" aria-current="page"' in html
    css = web.get("/static/app.css").text
    assert "max-width: 900px" in css and ".sheetcard" in css