"""Tests for the GODSEED deterministic world engine (Agent A).

Covers: clamping, unknown-enum/tool rejection, seed determinism, genesis
rebuild equality, queue caps + crash isolation, moderation layers (clean
pass, slur/leetspeak block, unicode-confusable block, hate symbol block,
judge default-deny), and the <600-char world summary.
"""

import asyncio
import json
import sys
import zlib
from pathlib import Path

import pytest

sys.path.insert(0, str(Path(__file__).resolve().parents[1]))

from engine.genesis import GENESIS_FEATURES, genesis_features
from engine.moderation import Moderator
from engine.queue_worker import (
    QUEUE_MAX,
    AlreadyPending,
    QueueFull,
    QueueWorker,
)
from engine.summary import GENESIS_MONOLITH, summarize, town_center, town_name
from engine.tools import TOOL_NAMES, validate_call
from engine.world import World


def make_world() -> World:
    return World.load(genesis_features())


def ok_raise(lat=10, lon=10):
    return {
        "tool": "raise_terrain",
        "args": {"lat": lat, "lon": lon, "radius_deg": 5, "height": 0.05, "roughness": 0.5},
    }


# --------------------------------------------------------------------- clamping


def test_clamp_out_of_range_numbers():
    world = make_world()
    feature, obs = world.apply(
        "w_000001",
        0,
        {
            "tool": "raise_terrain",
            "args": {"lat": 200, "lon": -999, "radius_deg": 400, "height": 9, "roughness": -3},
        },
    )
    assert obs == "ok: mountains risen at (85,-180)"
    assert feature.args == {
        "lat": 85.0,
        "lon": -180.0,
        "radius_deg": 45.0,
        "height": 0.12,
        "roughness": 0.0,
    }


def test_clamp_moons_to_integer_and_enum_normalization():
    world = make_world()
    feature, obs = world.apply(
        "w_000001",
        0,
        {"tool": "set_sky", "args": {"palette": " AURORA ", "star_density": -1, "moons": 9.7}},
    )
    assert obs == "ok: sky set to aurora"
    assert feature.args == {"palette": "aurora", "star_density": 0.0, "moons": 3}
    assert isinstance(feature.args["moons"], int)


def test_inscribe_text_truncated_to_90():
    world = make_world()
    feature, obs = world.apply(
        "w_000001",
        0,
        {"tool": "inscribe_wish", "args": {"text": "x" * 200, "style": "stone"}},
    )
    assert obs == "ok: wish inscribed in stone"
    assert feature.args["text"] == "x" * 90


def test_numeric_strings_accepted_and_clamped():
    args, err = validate_call(
        "set_weather", {"kind": "rain", "intensity": "1.8"}
    )
    assert err is None
    assert args == {"kind": "rain", "intensity": 1.0}


def test_place_water_stream_and_pool():
    # stream: hue clamped, 6 waypoints truncated to 5, no radius in canonical args
    args, err = validate_call(
        "place_water",
        {"kind": "stream", "path": [[0, 0], [10, 10], [20, 20], [30, 30], [40, 40], [50, 50]],
         "hue": 500, "radius_deg": 5},
    )
    assert err is None
    assert args["kind"] == "stream"
    assert len(args["path"]) == 5
    assert args["hue"] == 260.0
    assert "radius_deg" not in args

    # pool: path collapses to center, radius clamped
    args, err = validate_call(
        "place_water", {"kind": "pool", "path": [[95, 200], [1, 1]], "radius_deg": 99, "hue": 100}
    )
    assert err is None
    assert args == {"kind": "pool", "path": [[85.0, 180.0]], "radius_deg": 10.0, "hue": 160.0}

    # stream with one waypoint is rejected
    args, err = validate_call("place_water", {"kind": "stream", "path": [[0, 0]], "hue": 200})
    assert args is None and err == "rejected: stream needs 2..5 waypoints"

    # forgiving water (June 12 live traces — models fumble this tool the most):
    # pool without radius_deg gets the engine default
    args, err = validate_call("place_water", {"kind": "pool", "path": [[0, 0]], "hue": 200})
    assert err is None and args["radius_deg"] == 5.0

    # lat/lon (the shape of every other tool) synthesizes the path
    args, err = validate_call("place_water", {"kind": "pool", "lat": 10, "lon": 20, "hue": 200})
    assert err is None and args["path"] == [[10.0, 20.0]]

    # a flat [lat, lon] pair is wrapped; hue defaults when missing
    args, err = validate_call("place_water", {"kind": "pool", "path": [12, 30]})
    assert err is None and args["path"] == [[12.0, 30.0]] and args["hue"] == 190.0

    # no location at all is still refused, with a teaching observation
    args, err = validate_call("place_water", {"kind": "pool"})
    assert args is None and "lat+lon" in err


# -------------------------------------------------------------------- rejection


def test_unknown_tool_rejected():
    world = make_world()
    before = world.version
    feature, obs = world.apply("w_000001", 0, {"tool": "summon_demon", "args": {}})
    assert feature is None
    assert obs == "rejected: unknown tool 'summon_demon'"
    assert world.version == before  # append-only list untouched on rejection


def test_unknown_enum_rejected():
    world = make_world()
    feature, obs = world.apply(
        "w_000001",
        0,
        {
            "tool": "spawn_flora",
            "args": {"lat": 0, "lon": 0, "radius_deg": 5, "kind": "cactus", "density": 1, "hue": 100},
        },
    )
    assert feature is None
    assert obs == "rejected: unknown kind 'cactus'"


def test_missing_arg_rejected():
    world = make_world()
    feature, obs = world.apply(
        "w_000001",
        0,
        {"tool": "raise_terrain", "args": {"lat": 0, "lon": 0, "radius_deg": 5, "roughness": 0.5}},
    )
    assert feature is None
    assert obs == "rejected: missing arg 'height'"


def test_bool_is_not_a_number():
    args, err = validate_call("set_weather", {"kind": "rain", "intensity": True})
    assert args is None and err == "rejected: bad arg 'intensity'"


def test_rejected_call_does_not_consume_feature_id():
    world = make_world()
    world.apply("w_000001", 0, {"tool": "nope", "args": {}})
    feature, _ = world.apply("w_000001", 1, ok_raise())
    assert feature.id == "f_000004"  # genesis is f_000000..f_000003


# ------------------------------------------------------------------ determinism


def test_seed_formula_matches_contract():
    world = make_world()
    feature, _ = world.apply("w_000007", 3, ok_raise())
    assert feature.seed == zlib.crc32(b"w_000007:3") & 0x7FFFFFFF


def test_seed_deterministic_across_worlds():
    f1, _ = make_world().apply("w_000005", 0, ok_raise())
    f2, _ = make_world().apply("w_000005", 0, ok_raise())
    assert f1.seed == f2.seed
    assert f1.args == f2.args
    assert f1.id == f2.id


# ---------------------------------------------------------------------- genesis


def test_genesis_rebuild_equality():
    world = World.load(genesis_features())
    rebuilt = world.state_dict()["features"]
    assert rebuilt == GENESIS_FEATURES
    # byte-for-byte through JSON, not just == (int/float and key fidelity)
    assert json.dumps(rebuilt, sort_keys=True) == json.dumps(GENESIS_FEATURES, sort_keys=True)
    assert world.epoch == 0
    assert world.version == 4
    assert world.sky["palette"] == "void"
    assert world.weather == {"kind": "clear", "intensity": 0.0}


def test_genesis_features_returns_copies():
    g = genesis_features()
    g[0]["args"]["moons"] = 99
    assert GENESIS_FEATURES[0]["args"]["moons"] == 1


def test_sky_last_write_wins_but_features_append_only():
    world = make_world()
    world.apply("w_000001", 0, {"tool": "set_sky", "args": {"palette": "gold", "star_density": 0.5, "moons": 2}})
    state = world.state_dict()
    assert state["sky"]["palette"] == "gold"
    sky_features = [f for f in state["features"] if f["tool"] == "set_sky"]
    assert len(sky_features) == 2  # both writes kept for replay
    assert state["epoch"] == 1


# ------------------------------------------------------------------------ queue


class GrantPlanner:
    """Mock planner: crashes on 'explode', otherwise raises terrain + tries a bad call."""

    def __init__(self):
        self.granted = []

    async def grant(self, wish, world_summary, act, emit):
        assert isinstance(world_summary, str) and len(world_summary) < 600
        if "explode" in wish:
            raise RuntimeError("boom")
        await emit({"type": "thought_token", "text": "hm."})
        obs = await act(ok_raise())
        assert obs.startswith("ok:")
        bad = await act(
            {"tool": "spawn_flora",
             "args": {"lat": 0, "lon": 0, "radius_deg": 5, "kind": "cactus", "density": 1, "hue": 9}}
        )
        assert bad == "rejected: unknown kind 'cactus'"
        self.granted.append(wish)
        return {"reading": "so be it", "turns": [], "epitaph": f"granted: {wish[:20]}"}


async def _wait_for(events, type_, wish_id=None, timeout=5.0):
    loop = asyncio.get_running_loop()
    deadline = loop.time() + timeout
    while loop.time() < deadline:
        for event in events:
            if event.get("type") == type_ and (wish_id is None or event.get("wish_id") == wish_id):
                return event
        await asyncio.sleep(0.01)
    raise AssertionError(f"timeout waiting for {type_} ({wish_id})")


def test_queue_caps():
    async def run():
        world = make_world()

        async def emit(event):
            pass

        worker = QueueWorker(world, Moderator(), GrantPlanner(), emit)  # never started
        wish_id, position = await worker.submit("first wish", "client-a")
        assert wish_id == "w_000001"
        assert position == 1
        with pytest.raises(AlreadyPending):
            await worker.submit("second wish, same soul", "client-a")
        for i in range(QUEUE_MAX - 1):
            await worker.submit(f"wish {i}", f"client-{i}")
        assert worker.queue_length == QUEUE_MAX
        with pytest.raises(QueueFull) as exc:
            await worker.submit("one too many", "client-z")
        assert "overwhelmed" in exc.value.reason

    asyncio.run(run())


def test_worker_crash_isolation_and_grant_flow():
    async def run():
        world = make_world()
        events, traces = [], []

        async def emit(event):
            events.append(event)

        def persist(trace):
            traces.append(trace)

        planner = GrantPlanner()
        worker = QueueWorker(world, Moderator(), planner, emit, persist)
        await worker.start()
        try:
            crash_id, _ = await worker.submit("explode the heavens", "c1")
            grant_id, _ = await worker.submit("gentle green hills", "c2")

            rejected = await _wait_for(events, "wish_rejected", crash_id)
            assert rejected["reason"]  # poetic generic, never a stack trace
            assert "boom" not in rejected["reason"]

            granted = await _wait_for(events, "wish_granted", grant_id)
            assert granted["epitaph"] == "granted: gentle green hills"
            assert granted["epoch"] == 1

            # crash isolated: only the granted wish persisted, enriched by worker
            assert len(traces) == 1
            assert traces[0]["wish_id"] == grant_id
            assert traces[0]["text"] == "gentle green hills"
            assert traces[0]["moderation"] == {"allowed": True, "category": None}
            assert traces[0]["submitted_at"] > 0

            # tool_call + world_delta emitted with the contract seed
            delta = await _wait_for(events, "world_delta")
            assert delta["feature"]["seed"] == zlib.crc32(f"{grant_id}:0".encode()) & 0x7FFFFFFF
            call = await _wait_for(events, "tool_call", grant_id)
            assert call["call_index"] == 0 and call["tool"] == "raise_terrain"

            # client slot freed after completion (even after a crash)
            next_id, _ = await worker.submit("a quiet lighthouse", "c1")
            await _wait_for(events, "wish_granted", next_id)
            assert world.epoch == 2
            assert planner.granted == ["gentle green hills", "a quiet lighthouse"]

            # moderation block: planner never called, poetic rejection emitted
            blocked_id, _ = await worker.submit("build a n1gg3r statue", "c3")
            blocked = await _wait_for(events, "wish_rejected", blocked_id)
            assert "declined" in blocked["reason"]
            assert len(planner.granted) == 2

            # queue + wish_started events flowed
            assert any(e["type"] == "queue" and "length" in e for e in events)
            assert any(e["type"] == "wish_started" for e in events)
        finally:
            await worker.stop()
        assert not worker.is_running

    asyncio.run(run())


def test_wish_counter_resumes_from_persisted_world():
    world = make_world()
    world.apply("w_000041", 0, ok_raise())

    async def run():
        async def emit(event):
            pass

        worker = QueueWorker(world, Moderator(), GrantPlanner(), emit)
        wish_id, _ = await worker.submit("continue the count", "c1")
        assert wish_id == "w_000042"

    asyncio.run(run())


# ------------------------------------------------------------------- moderation


def test_moderation_clean_pass():
    verdict = Moderator().precheck("a lighthouse on the northern shore, please")
    assert verdict.allowed
    assert verdict.category is None and verdict.poetic_reason is None


def test_moderation_slur_leetspeak_block():
    verdict = Moderator().precheck("build a n1gg3r statue")
    assert not verdict.allowed
    assert verdict.category == "hate"
    assert verdict.poetic_reason


def test_moderation_unicode_confusable_block():
    # Cyrillic і (U+0456) and е (U+0435)
    verdict = Moderator().precheck("make a nіggеr forest")
    assert not verdict.allowed
    assert verdict.category == "hate"


def test_moderation_spaced_out_slur_block():
    verdict = Moderator().precheck("a f.a.g.g.o.t shrine")
    assert not verdict.allowed
    assert verdict.category == "hate"


def test_moderation_cyrillic_transliteration_block():
    mod = Moderator()
    for wish in ("ХИТЛЕР shrine", "гитлер monument", "свастика lake"):
        verdict = mod.precheck(wish)
        assert not verdict.allowed and verdict.category == "hate", wish
    # benign Cyrillic still passes
    assert mod.precheck("снежные горы и тихое море").allowed


def test_moderation_hate_symbol_block():
    verdict = Moderator().precheck("plant a 卐 shaped forest")
    assert not verdict.allowed
    assert verdict.category == "hate"


def test_moderation_violent_phrase_block():
    verdict = Moderator().precheck("kill all the villagers")
    assert not verdict.allowed
    assert verdict.category == "violence"


def test_moderation_no_scunthorpe_false_positives():
    mod = Moderator()
    for wish in (
        "a raccoon village under the analysis tower",
        "glass cliffs of sussex",
        "cucumber vines along the equator",
        "a peacock garden by the cockpit ruins",
    ):
        assert mod.precheck(wish).allowed, wish


def test_moderation_length_and_charset():
    mod = Moderator()
    assert mod.precheck("a" * 140).allowed
    assert mod.precheck("a" * 141).category == "length"
    assert mod.precheck("wish\x00wish").category == "charset"
    assert mod.precheck("").category == "empty"
    assert mod.precheck("   ").category == "empty"
    assert mod.precheck(None).category == "empty"
    # benign newlines fold to spaces rather than denying
    assert mod.precheck("two moons\nand a stream").allowed


def test_moderation_judge_paths():
    async def run():
        calls = []

        async def crashing_judge(text):
            raise RuntimeError("gpu fell over")

        async def garbage_judge(text):
            return "banana banana"

        async def allow_judge(text):
            calls.append(text)
            return {"allowed": True, "category": None}

        async def deny_judge(text):
            return '{"allowed": false, "category": "sad"}'

        async def fenced_judge(text):
            return '```json\n{"allowed": true}\n```'

        wish = "a calm violet sea"
        # default-deny on judge exception
        verdict = await Moderator(judge=crashing_judge).check(wish)
        assert not verdict.allowed and verdict.category == "uncertain"
        # default-deny on unparseable reply
        verdict = await Moderator(judge=garbage_judge).check(wish)
        assert not verdict.allowed and verdict.category == "uncertain"
        # judge allow passes through
        verdict = await Moderator(judge=allow_judge).check(wish)
        assert verdict.allowed and calls == [wish]
        # judge deny is honored, category preserved, reason poetic
        verdict = await Moderator(judge=deny_judge).check(wish)
        assert not verdict.allowed and verdict.category == "sad" and verdict.poetic_reason
        # tolerant of code fences around valid JSON
        verdict = await Moderator(judge=fenced_judge).check(wish)
        assert verdict.allowed
        # no judge configured: layers 1-2 decide
        verdict = await Moderator().check(wish)
        assert verdict.allowed

    asyncio.run(run())


def test_moderation_judge_skipped_when_blocklisted():
    async def run():
        calls = []

        async def judge(text):
            calls.append(text)
            return {"allowed": True}

        verdict = await Moderator(judge=judge).check("a n1gger forest")
        assert not verdict.allowed
        assert calls == []  # wordlist layer denies before the judge spends tokens

    asyncio.run(run())


# ---------------------------------------------------------------------- summary


def test_summary_compact_and_complete():
    world = make_world()
    wish = "w_000001"
    world.apply(wish, 0, ok_raise(22, -40))
    world.apply(wish, 1, {"tool": "spawn_flora", "args": {"lat": 22, "lon": -40, "radius_deg": 8, "kind": "glowgrass", "density": 0.7, "hue": 160}})
    world.apply(wish, 2, {"tool": "place_structure", "args": {"lat": 5, "lon": 5, "kind": "lighthouse", "scale": 1.0, "hue": 40}})
    world.apply(wish, 3, {"tool": "set_weather", "args": {"kind": "mist", "intensity": 0.4}})
    world.record_epitaph("the hills learned to glow")
    world.record_epitaph("a lighthouse for the lost")

    text = world.summary()
    assert len(text) < 600
    assert "epoch 1" in text
    assert "glowgrass" in text
    assert "lighthouse(5,5)" in text
    assert "mist" in text
    assert "a lighthouse for the lost" in text
    assert summarize(world) == text


def test_summary_stays_under_cap_with_many_features():
    world = make_world()
    for i in range(40):
        wish = f"w_{i + 1:06d}"
        world.apply(wish, 0, ok_raise((i * 7) % 80 - 40, (i * 13) % 300 - 150))
        world.apply(wish, 1, {"tool": "place_structure", "args": {"lat": i % 60, "lon": -i % 120, "kind": "shrine", "scale": 1.2, "hue": i * 8 % 360}})
        world.apply(wish, 2, {"tool": "spawn_flora", "args": {"lat": 0, "lon": 0, "radius_deg": 10, "kind": ["trees", "vines", "reeds", "flowers", "mushrooms", "glowgrass"][i % 6], "density": 0.5, "hue": 100}})
        world.record_epitaph("an unreasonably long epitaph about the slow work of small gods " + "x" * 60)
    assert len(world.summary()) < 600


# ------------------------------------------------------------------------ misc


def test_tool_surface_is_exactly_eleven():
    assert TOOL_NAMES == (
        "raise_terrain",
        "lower_terrain",
        "spawn_flora",
        "place_structure",
        "place_water",
        "set_weather",
        "set_sky",
        "inscribe_wish",
        "spawn_life",
        "build_district",
        "place_road",
    )


# --------------------------------------------------------------------- city update


def test_new_structure_kinds_accepted():
    world = make_world()
    for kind in ("tower", "warehouse", "cafe"):
        feature, obs = world.apply(
            "w_000001",
            0,
            {"tool": "place_structure",
             "args": {"lat": 5, "lon": 5, "kind": kind, "scale": 1.0, "hue": 40}},
        )
        assert feature is not None, kind
        assert feature.args["kind"] == kind
        assert obs == f"ok: {kind} placed at (5,5)"


def test_place_structure_forgives_unknown_and_synonym_kinds():
    # June 12: rejecting model-invented kinds made town wishes build nothing.
    # Now place_structure NEVER rejects a kind — it maps it.
    args, err = validate_call(
        "place_structure", {"lat": 0, "lon": 0, "kind": "castle", "scale": 1.0, "hue": 100})
    assert err is None and args["kind"] == "house"  # unknown -> humble house

    for given, expected in [("market_square", "market"), ("skyscraper", "tower"),
                            ("coffeehouse", "cafe"), ("cottage", "house"), ("church", "shrine")]:
        args, err = validate_call(
            "place_structure", {"lat": 1, "lon": 1, "kind": given, "scale": 1.0, "hue": 50})
        assert err is None and args["kind"] == expected, f"{given} -> {args}"

    # a "district"-ish kind reroutes to a dense build_district
    args, err = validate_call(
        "place_structure", {"lat": 2, "lon": 3, "kind": "neighborhood", "scale": 1.0, "hue": 40})
    assert err is None and "density" in args and "kind" not in args  # build_district shape


def test_spawn_life_valid_and_clamped():
    world = make_world()
    feature, obs = world.apply(
        "w_000001",
        0,
        {"tool": "spawn_life",
         "args": {"lat": 200, "lon": -999, "radius_deg": 99, "kind": "CARTS",
                  "count": 50, "hue": 720}},
    )
    assert feature is not None
    assert feature.args == {
        "lat": 85.0,
        "lon": -180.0,
        "radius_deg": 20.0,   # clamped to spawn_life max
        "kind": "carts",      # enum lowercased
        "count": 12,          # clamped to max, integer
        "hue": 360.0,
    }
    assert isinstance(feature.args["count"], int)
    assert obs == "ok: 12 carts stirring at (85,-180)"


def test_spawn_life_count_is_integer_and_low_clamp():
    args, err = validate_call(
        "spawn_life",
        {"lat": 0, "lon": 0, "radius_deg": 0.1, "kind": "fireflies",
         "count": 0.4, "hue": 200},
    )
    assert err is None
    assert args["radius_deg"] == 1.0   # clamped up to min
    assert args["count"] == 1          # rounds/clamps up to min, integer
    assert isinstance(args["count"], int)
    assert args["kind"] == "fireflies"


def test_spawn_life_rejects_unknown_kind():
    args, err = validate_call(
        "spawn_life",
        {"lat": 0, "lon": 0, "radius_deg": 5, "kind": "dragons", "count": 3, "hue": 100},
    )
    assert args is None and err == "rejected: unknown kind 'dragons'"


def test_spawn_life_missing_arg_rejected():
    args, err = validate_call(
        "spawn_life",
        {"lat": 0, "lon": 0, "radius_deg": 5, "kind": "birds", "hue": 100},
    )
    assert args is None and err == "rejected: missing arg 'count'"


# --------------------------------------------------------------------- town mode


def test_build_district_valid_and_clamped():
    world = make_world()
    feature, obs = world.apply(
        "w_000001",
        0,
        {"tool": "build_district",
         "args": {"lat": 14, "lon": 38, "radius_deg": 99, "density": 9, "hue": 720}},
    )
    assert feature is not None
    assert feature.args == {
        "lat": 14.0,
        "lon": 38.0,
        "radius_deg": 15.0,   # clamped to build_district max
        "density": 1.0,       # clamped to max
        "hue": 360.0,
    }
    assert obs == "ok: a district rises near (14,38)"


def test_build_district_radius_clamps_up_and_missing_arg_rejected():
    args, err = validate_call(
        "build_district",
        {"lat": 0, "lon": 0, "radius_deg": 0.5, "density": 0.4, "hue": 200},
    )
    assert err is None
    assert args["radius_deg"] == 2.0  # clamped up to min

    args, err = validate_call(
        "build_district", {"lat": 0, "lon": 0, "density": 0.4, "hue": 200}
    )
    assert args is None and err == "rejected: missing arg 'radius_deg'"


def test_place_road_valid_and_clamped():
    world = make_world()
    # 7 waypoints truncated to 6; out-of-range coords clamped
    feature, obs = world.apply(
        "w_000001",
        0,
        {"tool": "place_road",
         "args": {"path": [[200, -999], [1, 1], [2, 2], [3, 3], [4, 4], [5, 5], [6, 6]]}},
    )
    assert feature is not None
    assert len(feature.args["path"]) == 6
    assert feature.args["path"][0] == [85.0, -180.0]
    assert feature.args == {"path": [[85.0, -180.0], [1.0, 1.0], [2.0, 2.0],
                                     [3.0, 3.0], [4.0, 4.0], [5.0, 5.0]]}
    assert obs == "ok: a road laid through 6 points"


def test_place_road_flat_pair_and_dict_points():
    # a flat [lat, lon] pair is NOT enough — a road needs two waypoints
    args, err = validate_call("place_road", {"path": [12, 30]})
    assert args is None and err == "rejected: road needs 2..6 waypoints"

    # dict waypoints are accepted (like place_water)
    args, err = validate_call(
        "place_road", {"path": [{"lat": 10, "lon": 20}, {"lat": 12, "lon": 22}]}
    )
    assert err is None and args == {"path": [[10.0, 20.0], [12.0, 22.0]]}


def test_place_road_rejects_missing_and_short_path():
    args, err = validate_call("place_road", {})
    assert args is None and "road needs path" in err

    args, err = validate_call("place_road", {"path": [[10, 20]]})
    assert args is None and err == "rejected: road needs 2..6 waypoints"

    args, err = validate_call("place_road", {"path": [[10, 20], ["x", "y"]]})
    assert args is None and "bad waypoint" in err


def test_new_civic_structure_kinds_accepted():
    world = make_world()
    for kind in ("bank", "market", "house"):
        feature, obs = world.apply(
            "w_000001",
            0,
            {"tool": "place_structure",
             "args": {"lat": 5, "lon": 5, "kind": kind, "scale": 1.0, "hue": 40}},
        )
        assert feature is not None, kind
        assert feature.args["kind"] == kind
        assert obs == f"ok: {kind} placed at (5,5)"


def test_town_center_genesis_fallback():
    # A fresh genesis world has no non-genesis town tools -> monolith fallback.
    world = make_world()
    assert town_center(world) == GENESIS_MONOLITH == (14.0, 38.0)
    # Terrain / flora alone do NOT anchor the town (only structures + districts).
    world.apply("w_000001", 0, ok_raise(50, -50))
    world.apply("w_000001", 1, {"tool": "spawn_flora",
                "args": {"lat": 60, "lon": 60, "radius_deg": 8, "kind": "trees",
                         "density": 0.5, "hue": 120}})
    assert town_center(world) == GENESIS_MONOLITH


def test_town_center_unit_vector_centroid():
    world = make_world()
    world.apply("w_000001", 0, {"tool": "place_structure",
                "args": {"lat": 10, "lon": 20, "kind": "tower", "scale": 1.0, "hue": 200}})
    world.apply("w_000001", 1, {"tool": "build_district",
                "args": {"lat": 20, "lon": 40, "radius_deg": 8, "density": 0.6, "hue": 40}})
    # Unit-vector mean of (10,20) and (20,40), renormalized (computed offline).
    assert town_center(world) == (15.2206, 29.7632)


def test_town_center_excludes_genesis_monolith():
    # The genesis monolith (14,38) is NOT counted; one built tower defines the town.
    world = make_world()
    world.apply("w_000001", 0, {"tool": "place_structure",
                "args": {"lat": -30, "lon": 100, "kind": "house", "scale": 1.0, "hue": 30}})
    lat, lon = town_center(world)
    assert round(lat) == -30 and round(lon) == 100


def test_town_name_is_deterministic():
    # Same rounded center -> same name; from the curated pool.
    from engine.summary import TOWN_NAMES
    n1 = town_name(14.0, 38.0)
    n2 = town_name(14.49, 37.51)  # rounds to the same (14, 38)
    assert n1 == n2 == "Emberlyn"
    assert n1 in TOWN_NAMES
    # The genesis-fallback town is always named the same.
    assert town_name(*GENESIS_MONOLITH) == "Emberlyn"


def test_summary_names_the_town_and_tally():
    world = make_world()
    wish = "w_000001"
    world.apply(wish, 0, {"tool": "place_structure",
                "args": {"lat": 14, "lon": 38, "kind": "tower", "scale": 1.4, "hue": 200}})
    world.apply(wish, 1, {"tool": "place_structure",
                "args": {"lat": 15, "lon": 39, "kind": "tower", "scale": 1.4, "hue": 200}})
    world.apply(wish, 2, {"tool": "place_structure",
                "args": {"lat": 13, "lon": 37, "kind": "cafe", "scale": 0.9, "hue": 40}})
    world.apply(wish, 3, {"tool": "build_district",
                "args": {"lat": 14, "lon": 38, "radius_deg": 8, "density": 0.7, "hue": 30}})
    text = world.summary()
    assert len(text) < 600
    assert "The town of" in text
    assert "stands near" in text
    assert "2 towers" in text
    assert "a cafe" in text
    assert "a district" in text
    # The town line leads the summary (steering: where to keep building).
    assert text.startswith("The town of")


def test_summary_town_line_survives_truncation():
    world = make_world()
    for i in range(40):
        wish = f"w_{i + 1:06d}"
        world.apply(wish, 0, {"tool": "place_structure",
                    "args": {"lat": i % 60 - 30, "lon": (i * 9) % 300 - 150,
                             "kind": "house", "scale": 1.0, "hue": i * 8 % 360}})
        world.record_epitaph("a long epitaph about the slow work of small gods " + "x" * 60)
    text = world.summary()
    assert len(text) < 600
    assert text.startswith("The town of")