import app.games
from tests.conftest import make_game
from app.games import (
    calculate_game_priority,
    convert_game_state,
    format_record,
    get_comeback_bonus,
    get_game_outcome,
    get_period,
    get_power_play_info,
    get_start_time,
    get_time_remaining,
    parse_games,
    utc_to_eastern,
)


class TestConvertGameState:
    def test_off_maps_to_final(self):
        assert convert_game_state("OFF") == "FINAL"

    def test_crit_maps_to_live(self):
        assert convert_game_state("CRIT") == "LIVE"

    def test_fut_maps_to_pre(self):
        assert convert_game_state("FUT") == "PRE"

    def test_unknown_state_passes_through(self):
        assert convert_game_state("LIVE") == "LIVE"


class TestProcessRecord:
    def test_na_returns_na(self):
        assert format_record("N/A") == "N/A"

    def test_pads_single_digit_parts(self):
        assert format_record("5-3-1") == "05-03-01"

    def test_already_padded_unchanged(self):
        assert format_record("40-25-10") == "40-25-10"


class TestProcessPeriod:
    def test_pre_game_returns_zero(self):
        game = make_game(game_state="PRE")
        assert get_period(game) == 0

    def test_fut_game_returns_zero(self):
        game = make_game(game_state="FUT")
        assert get_period(game) == 0

    def test_final_game_returns_na(self):
        game = make_game(game_state="OFF")
        assert get_period(game) == "N/A"

    def test_live_game_returns_period_number(self):
        game = make_game(game_state="LIVE", period=2)
        assert get_period(game) == 2


class TestProcessTimeRemaining:
    def test_pre_game_returns_2000(self):
        game = make_game(game_state="FUT")
        assert get_time_remaining(game) == "20:00"

    def test_final_game_returns_0000(self):
        game = make_game(game_state="OFF")
        assert get_time_remaining(game) == "00:00"

    def test_live_game_returns_clock(self):
        game = make_game(game_state="LIVE", seconds_remaining=305)
        assert get_time_remaining(game) == "05:05"

    def test_live_game_at_zero_returns_end(self):
        game = make_game(game_state="LIVE", seconds_remaining=0)
        assert get_time_remaining(game) == "END"


class TestProcessStartTime:
    def test_pre_game_returns_est_time(self):
        game = make_game(game_state="FUT", start_time_utc="2024-04-10T23:00:00Z")
        result = get_start_time(game)
        assert result == "7:00 PM"

    def test_pre_game_strips_leading_zero(self):
        game = make_game(game_state="FUT", start_time_utc="2024-04-10T22:00:00Z")
        result = get_start_time(game)
        assert not result.startswith("0")

    def test_live_game_returns_na(self):
        game = make_game(game_state="LIVE")
        assert get_start_time(game) == "N/A"


class TestGetGameOutcome:
    def test_final_game_returns_last_period_type(self):
        game = make_game(game_state="OFF")
        assert get_game_outcome(game, "FINAL") == "REG"

    def test_live_game_returns_na(self):
        game = make_game(game_state="LIVE")
        assert get_game_outcome(game, "LIVE") == "N/A"


class TestUtcToEstTime:
    def test_converts_utc_to_edt(self):
        # April is EDT (UTC-4): 23:00 UTC → 07:00 PM EDT
        result = utc_to_eastern("2024-04-10T23:00:00Z")
        assert result == "07:00 PM"

    def test_converts_utc_to_est(self):
        # January is EST (UTC-5): 23:00 UTC → 06:00 PM EST
        result = utc_to_eastern("2024-01-15T23:00:00Z")
        assert result == "06:00 PM"


class TestParseGames:
    def test_returns_empty_list_for_none(self):
        assert parse_games(None) == []

    def test_returns_empty_list_for_empty_dict(self):
        assert parse_games({}) == []


class TestGetPowerPlayInfo:
    def test_returns_empty_when_no_situation(self):
        game = make_game()
        assert get_power_play_info(game, "Maple Leafs") == ""

    def test_returns_pp_info_for_away_team(self):
        game = make_game(away_name="Bruins")
        game["situation"] = {
            "situationDescriptions": ["PP"],
            "timeRemaining": "1:30",
        }
        assert get_power_play_info(game, "Bruins") == "PP 1:30"

    def test_returns_pp_info_for_home_team(self):
        game = make_game(home_name="Maple Leafs", away_name="Bruins")
        game["situation"] = {
            "situationDescriptions": ["PP"],
            "timeRemaining": "0:45",
        }
        assert get_power_play_info(game, "Maple Leafs") == "PP 0:45"


class TestCalculateGamePriority:
    def _live_game(
        self,
        period=3,
        seconds_remaining=300,
        home_score=2,
        away_score=1,
        in_intermission=False,
    ):
        return make_game(
            game_state="LIVE",
            period=period,
            seconds_remaining=seconds_remaining,
            home_score=home_score,
            away_score=away_score,
            in_intermission=in_intermission,
        )

    def test_returns_zero_for_final(self):
        game = make_game(game_state="OFF")
        assert calculate_game_priority(game) == 0

    def test_returns_zero_for_pre(self):
        game = make_game(game_state="FUT")
        assert calculate_game_priority(game) == 0

    def test_intermission_returns_negative(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        game = self._live_game(in_intermission=True, seconds_remaining=0)
        assert calculate_game_priority(game) < 0

    def test_score_diff_greater_than_3(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        game = self._live_game(home_score=5, away_score=0)
        result = calculate_game_priority(game)
        assert isinstance(result, int)

    def test_score_diff_greater_than_2(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        game = self._live_game(home_score=4, away_score=1)
        result = calculate_game_priority(game)
        assert isinstance(result, int)

    def test_score_diff_greater_than_1(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        game = self._live_game(home_score=3, away_score=1)
        result = calculate_game_priority(game)
        assert isinstance(result, int)

    def test_late_3rd_tied_bonus(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        game = self._live_game(
            period=3, seconds_remaining=600, home_score=2, away_score=2
        )
        result = calculate_game_priority(game)
        assert isinstance(result, int)

    def test_final_6_minutes_tied_bonus(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        game = self._live_game(
            period=3, seconds_remaining=300, home_score=2, away_score=2
        )
        result = calculate_game_priority(game)
        assert isinstance(result, int)

    def test_playoff_ot_escalates_per_period(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        p4 = make_game(game_state="LIVE", period=4, seconds_remaining=600, game_type=3)
        p5 = make_game(game_state="LIVE", period=5, seconds_remaining=600, game_type=3)
        assert calculate_game_priority(p5) > calculate_game_priority(p4)

    def test_regular_season_shootout_p5_above_p4(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        p4 = make_game(game_state="LIVE", period=4, seconds_remaining=150, game_type=2)
        p5 = make_game(game_state="LIVE", period=5, seconds_remaining=0, game_type=2)
        assert calculate_game_priority(p5) > calculate_game_priority(p4)

    def test_playoff_p4_higher_than_regular_season_p4(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        reg = make_game(game_state="LIVE", period=4, seconds_remaining=150, game_type=2)
        playoff = make_game(
            game_state="LIVE", period=4, seconds_remaining=600, game_type=3
        )
        assert calculate_game_priority(playoff) > calculate_game_priority(reg)

    def test_closeness_bonus_tied_beats_one_goal(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        tied = self._live_game(home_score=2, away_score=2)
        one_goal = self._live_game(home_score=2, away_score=1)
        assert calculate_game_priority(tied) > calculate_game_priority(one_goal)

    def test_5_4_same_priority_as_1_0(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        high_scoring = self._live_game(home_score=5, away_score=4)
        low_scoring = self._live_game(home_score=1, away_score=0)
        assert calculate_game_priority(high_scoring) == calculate_game_priority(
            low_scoring
        )

    def test_pp_in_ot_adds_200(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        base = make_game(game_state="LIVE", period=4, seconds_remaining=600)
        with_pp = make_game(
            game_state="LIVE",
            period=4,
            seconds_remaining=600,
            situation={"situationDescriptions": ["PP"], "timeRemaining": "1:30"},
        )
        assert calculate_game_priority(with_pp) - calculate_game_priority(base) == 200

    def test_pp_late_p3_adds_150(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        base = self._live_game(period=3, seconds_remaining=240)
        with_pp = make_game(
            game_state="LIVE",
            period=3,
            seconds_remaining=240,
            situation={"situationDescriptions": ["PP"], "timeRemaining": "1:30"},
        )
        assert calculate_game_priority(with_pp) - calculate_game_priority(base) == 150

    def test_pp_mid_p3_adds_100(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        base = self._live_game(period=3, seconds_remaining=600)
        with_pp = make_game(
            game_state="LIVE",
            period=3,
            seconds_remaining=600,
            situation={"situationDescriptions": ["PP"], "timeRemaining": "1:30"},
        )
        assert calculate_game_priority(with_pp) - calculate_game_priority(base) == 100

    def test_pp_early_p3_adds_50(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        base = self._live_game(period=3, seconds_remaining=900)
        with_pp = make_game(
            game_state="LIVE",
            period=3,
            seconds_remaining=900,
            situation={"situationDescriptions": ["PP"], "timeRemaining": "1:30"},
        )
        assert calculate_game_priority(with_pp) - calculate_game_priority(base) == 50

    def test_pp_p1_adds_30(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        base = self._live_game(period=1, seconds_remaining=600)
        with_pp = make_game(
            game_state="LIVE",
            period=1,
            seconds_remaining=600,
            situation={"situationDescriptions": ["PP"], "timeRemaining": "1:30"},
        )
        assert calculate_game_priority(with_pp) - calculate_game_priority(base) == 30

    def test_time_priority_increases_as_clock_runs(self, mocker):
        mocker.patch(
            "app.games.get_team_standings",
            return_value={"league_sequence": 0, "league_l10_sequence": 0},
        )
        early = self._live_game(period=3, seconds_remaining=1100)
        late = self._live_game(period=3, seconds_remaining=200)
        assert calculate_game_priority(late) > calculate_game_priority(early)


class TestGetComebackBonus:
    def setup_method(self):
        app.games._score_cache.clear()

    def test_returns_zero_on_first_call(self):
        game = make_game(home_score=2, away_score=1)
        assert get_comeback_bonus(game) == 0

    def test_cache_populated_after_first_call(self):
        game = make_game(home_score=2, away_score=1)
        get_comeback_bonus(game)
        assert ("Maple Leafs", "Bruins") in app.games._score_cache

    def test_no_bonus_when_leading_team_scores(self):
        app.games._score_cache[("Maple Leafs", "Bruins")] = (2, 1)
        game = make_game(home_score=3, away_score=1)  # leading home scored again
        assert get_comeback_bonus(game) == 0

    def test_bonus_when_trailing_home_scores_p3(self):
        app.games._score_cache[("Maple Leafs", "Bruins")] = (1, 3)
        game = make_game(home_score=2, away_score=3, period=3)
        assert get_comeback_bonus(game) == 75

    def test_bonus_when_trailing_away_scores_p2(self):
        app.games._score_cache[("Maple Leafs", "Bruins")] = (3, 1)
        game = make_game(home_score=3, away_score=2, period=2)
        assert get_comeback_bonus(game) == 50

    def test_no_bonus_when_diff_still_above_2(self):
        # 5-1 → 5-2: diff 4→3, still > 2, no bonus
        app.games._score_cache[("Maple Leafs", "Bruins")] = (1, 5)
        game = make_game(home_score=2, away_score=5)
        assert get_comeback_bonus(game) == 0

    def test_bonus_fires_once_then_clears(self):
        app.games._score_cache[("Maple Leafs", "Bruins")] = (1, 3)
        game = make_game(home_score=2, away_score=3, period=3)
        assert get_comeback_bonus(game) == 75
        # Same score on next call — cache now (2, 3), no change
        assert get_comeback_bonus(game) == 0

    def test_no_bonus_in_intermission(self):
        app.games._score_cache[("Maple Leafs", "Bruins")] = (1, 3)
        game = make_game(home_score=2, away_score=3, in_intermission=True)
        assert get_comeback_bonus(game) == 0
        # Cache should NOT be updated
        assert app.games._score_cache[("Maple Leafs", "Bruins")] == (1, 3)

    def test_no_bonus_for_non_live_state(self):
        app.games._score_cache[("Maple Leafs", "Bruins")] = (1, 3)
        game = make_game(game_state="OFF", home_score=2, away_score=3)
        assert get_comeback_bonus(game) == 0

    def test_ot_comeback_bonus_is_100(self):
        app.games._score_cache[("Maple Leafs", "Bruins")] = (1, 3)
        game = make_game(home_score=2, away_score=3, period=4)
        assert get_comeback_bonus(game) == 100