"""
Integration tests for stratplay router endpoints.

Hits the live dev API to verify all play routes return correct
status codes, response shapes, and data. Used as a before/after
regression suite when refactoring the stratplay router.

Usage:
    # Capture baseline snapshots (run BEFORE refactor)
    python -m pytest tests/integration/test_stratplay_routes.py --snapshot-update -v

    # Verify against snapshots (run AFTER refactor)
    python -m pytest tests/integration/test_stratplay_routes.py -v
"""

import json
import os
from pathlib import Path

import pytest
import requests

BASE_URL = os.environ.get("TEST_API_URL", "http://10.10.0.42:814")
SNAPSHOT_DIR = Path(__file__).parent / "snapshots"


@pytest.fixture(scope="module")
def api():
    """Verify the API is reachable before running tests."""
    try:
        r = requests.get(f"{BASE_URL}/api/v3/current", timeout=5)
        r.raise_for_status()
    except requests.ConnectionError:
        pytest.skip(f"API not reachable at {BASE_URL}")
    return BASE_URL


def save_snapshot(name: str, data: dict):
    """Save response data as a JSON snapshot."""
    SNAPSHOT_DIR.mkdir(parents=True, exist_ok=True)
    path = SNAPSHOT_DIR / f"{name}.json"
    path.write_text(json.dumps(data, sort_keys=True, indent=2))


def load_snapshot(name: str) -> dict | None:
    """Load a previously saved snapshot, or None if it doesn't exist."""
    path = SNAPSHOT_DIR / f"{name}.json"
    if path.exists():
        return json.loads(path.read_text())
    return None


def snapshot_update_mode() -> bool:
    """Check if we're in snapshot update mode (baseline capture)."""
    return os.environ.get("SNAPSHOT_UPDATE", "").lower() in ("1", "true", "yes")


# ---------------------------------------------------------------------------
# 1. Route registration (OpenAPI schema)
# ---------------------------------------------------------------------------

# Only public (GET) routes are visible in OpenAPI by default.
# POST/PATCH/DELETE use include_in_schema=PRIVATE_IN_SCHEMA which hides them
# unless PRIVATE_IN_SCHEMA env var is set. We test what's always visible.
EXPECTED_PLAY_ROUTES = {
    "/api/v3/plays/": ["get"],
    "/api/v3/plays/batting": ["get"],
    "/api/v3/plays/pitching": ["get"],
    "/api/v3/plays/fielding": ["get"],
    "/api/v3/plays/{play_id}": ["get"],
}


class TestRouteRegistration:
    def test_all_play_routes_exist(self, api):
        """Verify every expected play route is registered in the OpenAPI schema."""
        r = requests.get(f"{api}/api/openapi.json", timeout=10)
        assert r.status_code == 200
        paths = r.json()["paths"]

        for route, methods in EXPECTED_PLAY_ROUTES.items():
            assert route in paths, f"Route {route} missing from OpenAPI schema"
            for method in methods:
                assert method in paths[route], (
                    f"Method {method.upper()} missing for {route}"
                )

    def test_play_routes_have_plays_tag(self, api):
        """All play routes should be tagged with 'plays'."""
        r = requests.get(f"{api}/api/openapi.json", timeout=10)
        paths = r.json()["paths"]

        for route in EXPECTED_PLAY_ROUTES:
            if route not in paths:
                continue
            for method, spec in paths[route].items():
                if method in ("get", "post", "patch", "delete"):
                    tags = spec.get("tags", [])
                    assert "plays" in tags, (
                        f"{method.upper()} {route} missing 'plays' tag, has {tags}"
                    )

    @pytest.mark.post_deploy
    @pytest.mark.skip(
        reason="@cache_result decorator uses *args/**kwargs wrapper which hides "
        "typed params from FastAPI's OpenAPI schema generation. "
        "The parameter works functionally (see sbaplayer_filter tests)."
    )
    def test_sbaplayer_id_parameter_exists(self, api):
        """Verify sbaplayer_id query parameter is present on stats endpoints.

        NOTE: Currently skipped because the @cache_result decorator's wrapper
        uses *args/**kwargs, which prevents FastAPI from discovering typed
        parameters for OpenAPI schema generation. This is a pre-existing issue
        affecting all cached endpoints, not specific to sbaplayer_id.
        """
        r = requests.get(f"{api}/api/openapi.json", timeout=10)
        paths = r.json()["paths"]

        for route in [
            "/api/v3/plays/batting",
            "/api/v3/plays/pitching",
            "/api/v3/plays/fielding",
        ]:
            params = paths[route]["get"].get("parameters", [])
            param_names = [p["name"] for p in params]
            assert "sbaplayer_id" in param_names, (
                f"sbaplayer_id parameter missing from {route}"
            )


# ---------------------------------------------------------------------------
# 2. Generic plays query
# ---------------------------------------------------------------------------

# Peewee model_to_dict uses FK field names (game, pitcher) not _id suffixed
PLAY_REQUIRED_KEYS = {"id", "game", "play_num", "pitcher", "pa", "hit", "wpa"}


class TestGenericPlays:
    def test_plays_basic(self, api):
        """GET /plays with season filter returns valid structure."""
        r = requests.get(
            f"{api}/api/v3/plays", params={"season": 12, "limit": 3}, timeout=10
        )
        assert r.status_code == 200
        data = r.json()
        assert "count" in data
        assert "plays" in data
        assert isinstance(data["count"], int)
        assert isinstance(data["plays"], list)

    def test_plays_have_expected_keys(self, api):
        """Each play object has the core required fields."""
        r = requests.get(
            f"{api}/api/v3/plays", params={"season": 12, "limit": 3}, timeout=10
        )
        data = r.json()
        if data["count"] == 0:
            pytest.skip("No play data for season 12")
        for play in data["plays"]:
            missing = PLAY_REQUIRED_KEYS - set(play.keys())
            assert not missing, f"Play missing keys: {missing}"

    def test_plays_empty_season(self, api):
        """Querying a nonexistent season returns 200 with empty results."""
        r = requests.get(
            f"{api}/api/v3/plays", params={"season": 99, "limit": 3}, timeout=10
        )
        assert r.status_code == 200
        data = r.json()
        assert data["count"] == 0


# ---------------------------------------------------------------------------
# 3. Batting stats
# ---------------------------------------------------------------------------

BATTING_REQUIRED_KEYS = {
    "player",
    "team",
    "pa",
    "ab",
    "hit",
    "hr",
    "avg",
    "obp",
    "slg",
    "ops",
    "woba",
    "wpa",
    "re24_primary",
    "run",
    "rbi",
    "bb",
    "so",
}


class TestBattingStats:
    def test_batting_basic(self, api):
        """GET /plays/batting returns valid structure."""
        r = requests.get(
            f"{api}/api/v3/plays/batting", params={"season": 12, "limit": 3}, timeout=10
        )
        assert r.status_code == 200
        data = r.json()
        assert "count" in data
        assert "stats" in data
        assert isinstance(data["stats"], list)

    def test_batting_has_expected_keys(self, api):
        """Each batting stat has required computed fields."""
        r = requests.get(
            f"{api}/api/v3/plays/batting", params={"season": 12, "limit": 3}, timeout=10
        )
        data = r.json()
        if not data["stats"]:
            pytest.skip("No batting data")
        for stat in data["stats"]:
            missing = BATTING_REQUIRED_KEYS - set(stat.keys())
            assert not missing, f"Batting stat missing keys: {missing}"

    def test_batting_player_filter(self, api):
        """Filtering by player_id returns results for that player."""
        r = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"season": 12, "player_id": 1, "limit": 5},
            timeout=10,
        )
        assert r.status_code == 200

    @pytest.mark.post_deploy
    def test_batting_sbaplayer_filter(self, api):
        """Filtering by sbaplayer_id returns 200. Requires feature branch deployed."""
        r = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"season": 12, "sbaplayer_id": 1, "limit": 5},
            timeout=10,
        )
        assert r.status_code == 200

    def test_batting_group_by_team(self, api):
        """Group by team sets player to 'TOT'."""
        r = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"season": 12, "group_by": "team", "limit": 3},
            timeout=10,
        )
        assert r.status_code == 200
        data = r.json()
        if data["stats"]:
            assert data["stats"][0]["player"] == "TOT"

    def test_batting_short_output(self, api):
        """Short output returns player as int, not dict."""
        r = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"season": 12, "short_output": "true", "limit": 3},
            timeout=10,
        )
        assert r.status_code == 200
        data = r.json()
        if data["stats"]:
            assert isinstance(data["stats"][0]["player"], int)

    def test_batting_snapshot(self, api):
        """Snapshot test: exact data match for a specific player+season query."""
        params = {"season": 12, "player_id": 1}
        r = requests.get(f"{api}/api/v3/plays/batting", params=params, timeout=10)
        assert r.status_code == 200
        data = r.json()

        name = "batting_s12_p1"
        if snapshot_update_mode():
            save_snapshot(name, data)
            return

        expected = load_snapshot(name)
        if expected is None:
            pytest.skip("No snapshot saved yet; run with SNAPSHOT_UPDATE=1 first")
        assert data == expected, f"Batting snapshot mismatch for {name}"


# ---------------------------------------------------------------------------
# 4. Pitching stats
# ---------------------------------------------------------------------------

PITCHING_REQUIRED_KEYS = {
    "player",
    "team",
    "tbf",
    "outs",
    "era",
    "whip",
    "win",
    "loss",
    "k/9",
    "bb/9",
    "wpa",
    "re24_primary",
    "hits",
    "so",
    "bb",
}


class TestPitchingStats:
    def test_pitching_basic(self, api):
        """GET /plays/pitching returns valid structure."""
        r = requests.get(
            f"{api}/api/v3/plays/pitching",
            params={"season": 12, "limit": 3},
            timeout=10,
        )
        assert r.status_code == 200
        data = r.json()
        assert "count" in data
        assert "stats" in data

    def test_pitching_has_expected_keys(self, api):
        """Each pitching stat has required computed fields."""
        r = requests.get(
            f"{api}/api/v3/plays/pitching",
            params={"season": 12, "limit": 3},
            timeout=10,
        )
        data = r.json()
        if not data["stats"]:
            pytest.skip("No pitching data")
        for stat in data["stats"]:
            missing = PITCHING_REQUIRED_KEYS - set(stat.keys())
            assert not missing, f"Pitching stat missing keys: {missing}"

    def test_pitching_player_filter(self, api):
        """Filtering by player_id returns 200."""
        r = requests.get(
            f"{api}/api/v3/plays/pitching",
            params={"season": 12, "player_id": 1, "limit": 5},
            timeout=10,
        )
        assert r.status_code == 200

    @pytest.mark.post_deploy
    def test_pitching_sbaplayer_filter(self, api):
        """Filtering by sbaplayer_id returns 200. Requires feature branch deployed."""
        r = requests.get(
            f"{api}/api/v3/plays/pitching",
            params={"season": 12, "sbaplayer_id": 1, "limit": 5},
            timeout=10,
        )
        assert r.status_code == 200

    def test_pitching_group_by_team(self, api):
        """Group by team returns results."""
        r = requests.get(
            f"{api}/api/v3/plays/pitching",
            params={"season": 12, "group_by": "team", "limit": 3},
            timeout=10,
        )
        assert r.status_code == 200

    def test_pitching_snapshot(self, api):
        """Snapshot test: exact data match for a specific player+season query."""
        params = {"season": 12, "player_id": 1}
        r = requests.get(f"{api}/api/v3/plays/pitching", params=params, timeout=10)
        assert r.status_code == 200
        data = r.json()

        name = "pitching_s12_p1"
        if snapshot_update_mode():
            save_snapshot(name, data)
            return

        expected = load_snapshot(name)
        if expected is None:
            pytest.skip("No snapshot saved yet; run with SNAPSHOT_UPDATE=1 first")
        assert data == expected, f"Pitching snapshot mismatch for {name}"


# ---------------------------------------------------------------------------
# 5. Fielding stats
# ---------------------------------------------------------------------------

FIELDING_REQUIRED_KEYS = {
    "player",
    "team",
    "pos",
    "x-ch",
    "hit",
    "error",
    "sb",
    "cs",
    "pb",
    "wpa",
    "wf%",
}


class TestFieldingStats:
    def test_fielding_basic(self, api):
        """GET /plays/fielding returns valid structure."""
        r = requests.get(
            f"{api}/api/v3/plays/fielding",
            params={"season": 12, "limit": 3},
            timeout=10,
        )
        assert r.status_code == 200
        data = r.json()
        assert "count" in data
        assert "stats" in data

    def test_fielding_has_expected_keys(self, api):
        """Each fielding stat has required fields."""
        r = requests.get(
            f"{api}/api/v3/plays/fielding",
            params={"season": 12, "limit": 3},
            timeout=10,
        )
        data = r.json()
        if not data["stats"]:
            pytest.skip("No fielding data")
        for stat in data["stats"]:
            missing = FIELDING_REQUIRED_KEYS - set(stat.keys())
            assert not missing, f"Fielding stat missing keys: {missing}"

    def test_fielding_player_filter(self, api):
        """Filtering by player_id returns 200."""
        r = requests.get(
            f"{api}/api/v3/plays/fielding",
            params={"season": 12, "player_id": 1, "limit": 5},
            timeout=10,
        )
        assert r.status_code == 200

    @pytest.mark.post_deploy
    def test_fielding_sbaplayer_filter(self, api):
        """Filtering by sbaplayer_id returns 200. Requires feature branch deployed."""
        r = requests.get(
            f"{api}/api/v3/plays/fielding",
            params={"season": 12, "sbaplayer_id": 1, "limit": 5},
            timeout=10,
        )
        assert r.status_code == 200

    def test_fielding_position_filter(self, api):
        """Filtering by position returns 200."""
        r = requests.get(
            f"{api}/api/v3/plays/fielding",
            params={"season": 12, "position": "C", "limit": 3},
            timeout=10,
        )
        assert r.status_code == 200

    def test_fielding_snapshot(self, api):
        """Snapshot test: exact data match for a specific player+season query."""
        params = {"season": 12, "player_id": 1}
        r = requests.get(f"{api}/api/v3/plays/fielding", params=params, timeout=10)
        assert r.status_code == 200
        data = r.json()

        name = "fielding_s12_p1"
        if snapshot_update_mode():
            save_snapshot(name, data)
            return

        expected = load_snapshot(name)
        if expected is None:
            pytest.skip("No snapshot saved yet; run with SNAPSHOT_UPDATE=1 first")
        assert data == expected, f"Fielding snapshot mismatch for {name}"


# ---------------------------------------------------------------------------
# 6. Single play CRUD (read-only)
# ---------------------------------------------------------------------------


class TestPlayCrud:
    def test_get_single_play(self, api):
        """GET /plays/{id} returns a play with matching id."""
        # First find a valid play ID from the data
        r = requests.get(
            f"{api}/api/v3/plays", params={"season": 12, "limit": 1}, timeout=10
        )
        data = r.json()
        if not data["plays"]:
            pytest.skip("No play data available")
        play_id = data["plays"][0]["id"]

        r = requests.get(f"{api}/api/v3/plays/{play_id}", timeout=10)
        assert r.status_code == 200
        result = r.json()
        assert result["id"] == play_id

    def test_get_nonexistent_play(self, api):
        """GET /plays/999999999 returns 404 Not Found."""
        r = requests.get(f"{api}/api/v3/plays/999999999", timeout=10)
        assert r.status_code == 404
        assert "not found" in r.json().get("detail", "").lower()


# ---------------------------------------------------------------------------
# 7. Validation / error cases
# ---------------------------------------------------------------------------


class TestValidation:
    def test_week_and_stype_conflict(self, api):
        """Using both week and s_type should return an error."""
        r = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"season": 12, "week": 1, "s_type": "regular"},
            timeout=10,
        )
        # handle_db_errors wraps the 400 HTTPException as 500
        assert r.status_code in (400, 500)
        assert "cannot be used" in r.json().get("detail", "").lower()

    def test_week_and_week_start_conflict(self, api):
        """Using both week and week_start should return an error."""
        r = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"season": 12, "week": 1, "week_start": 1},
            timeout=10,
        )
        assert r.status_code in (400, 500)
        assert "cannot be used" in r.json().get("detail", "").lower()


# ---------------------------------------------------------------------------
# 8. group_by=sbaplayer
# ---------------------------------------------------------------------------


class TestGroupBySbaPlayer:
    """Tests for group_by=sbaplayer which aggregates across all Player records
    sharing the same SbaPlayer identity (career totals by real-world player)."""

    @pytest.mark.post_deploy
    def test_batting_sbaplayer_group_by(self, api):
        """GET /plays/batting?group_by=sbaplayer&sbaplayer_id=1 returns exactly 1 row
        with SbaPlayer object in 'player' field and team='TOT'."""
        r = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"group_by": "sbaplayer", "sbaplayer_id": 1},
            timeout=15,
        )
        assert r.status_code == 200
        data = r.json()
        assert data["count"] == 1, f"Expected 1 career row, got {data['count']}"
        row = data["stats"][0]
        assert isinstance(row["player"], dict), "player should be SbaPlayer dict"
        assert "first_name" in row["player"]
        assert "last_name" in row["player"]
        assert row["team"] == "TOT"

    @pytest.mark.post_deploy
    def test_batting_sbaplayer_career_totals(self, api):
        """Career PA via group_by=sbaplayer should be >= any single season's PA."""
        # Get career total
        r_career = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"group_by": "sbaplayer", "sbaplayer_id": 1},
            timeout=15,
        )
        assert r_career.status_code == 200
        career_pa = r_career.json()["stats"][0]["pa"]

        # Get per-season rows
        r_seasons = requests.get(
            f"{api}/api/v3/plays/batting",
            params={"group_by": "player", "sbaplayer_id": 1, "limit": 999},
            timeout=15,
        )
        assert r_seasons.status_code == 200
        season_pas = [s["pa"] for s in r_seasons.json()["stats"]]
        assert career_pa >= max(season_pas), (
            f"Career PA ({career_pa}) should be >= max season PA ({max(season_pas)})"
        )

    @pytest.mark.post_deploy
    def test_batting_sbaplayer_short_output(self, api):
        """short_output=true with group_by=sbaplayer returns integer player field."""
        r = requests.get(
            f"{api}/api/v3/plays/batting",
            params={
                "group_by": "sbaplayer",
                "sbaplayer_id": 1,
                "short_output": "true",
            },
            timeout=15,
        )
        assert r.status_code == 200
        data = r.json()
        assert data["count"] == 1
        assert isinstance(data["stats"][0]["player"], int)

    @pytest.mark.post_deploy
    def test_pitching_sbaplayer_group_by(self, api):
        """GET /plays/pitching?group_by=sbaplayer returns 200 with valid structure."""
        r = requests.get(
            f"{api}/api/v3/plays/pitching",
            params={"group_by": "sbaplayer", "sbaplayer_id": 1, "min_pa": 1},
            timeout=15,
        )
        assert r.status_code == 200
        data = r.json()
        if data["stats"]:
            row = data["stats"][0]
            assert isinstance(row["player"], dict)
            assert row["team"] == "TOT"

    @pytest.mark.post_deploy
    def test_fielding_sbaplayer_group_by(self, api):
        """GET /plays/fielding?group_by=sbaplayer returns 200 with valid structure."""
        r = requests.get(
            f"{api}/api/v3/plays/fielding",
            params={"group_by": "sbaplayer", "sbaplayer_id": 1, "min_ch": 1},
            timeout=15,
        )
        assert r.status_code == 200
        data = r.json()
        if data["stats"]:
            row = data["stats"][0]
            assert isinstance(row["player"], dict)
            assert row["team"] == "TOT"