from app.bracket_view import build_bracket_view


def _series(
    letter,
    top_abbrev,
    top_id,
    top_wins,
    bot_abbrev,
    bot_id,
    bot_wins,
    rnd=1,
    winning_id=None,
    top_seed="D1",
    bot_seed="WC1",
):
    return {
        "seriesLetter": letter,
        "playoffRound": rnd,
        "topSeedWins": top_wins,
        "bottomSeedWins": bot_wins,
        "topSeedRankAbbrev": top_seed,
        "bottomSeedRankAbbrev": bot_seed,
        "winningTeamId": winning_id,
        "topSeedTeam": {
            "id": top_id,
            "abbrev": top_abbrev,
            "name": {"default": f"{top_abbrev} Team"},
            "commonName": {"default": top_abbrev},
            "darkLogo": f"http://example.com/{top_abbrev}_dark.svg",
        },
        "bottomSeedTeam": {
            "id": bot_id,
            "abbrev": bot_abbrev,
            "name": {"default": f"{bot_abbrev} Team"},
            "commonName": {"default": bot_abbrev},
            "darkLogo": f"http://example.com/{bot_abbrev}_dark.svg",
        },
    }


class TestEmptyBracket:
    def test_empty_payload_returns_all_placeholders(self):
        view = build_bracket_view(2026, {"series": []})
        assert len(view["east_r1"]) == 4
        assert len(view["west_r1"]) == 4
        assert len(view["east_r2"]) == 2
        assert len(view["west_r2"]) == 2
        assert len(view["east_cf"]) == 1
        assert len(view["west_cf"]) == 1
        assert len(view["cup"]) == 1
        for slot in view["east_r1"]:
            assert slot["empty"] is True
            assert slot["series_id"].startswith("2026-")

    def test_none_payload_is_safe(self):
        view = build_bracket_view(2026, None)
        assert all(s["empty"] for s in view["east_r1"])


class TestMatchupStates:
    def test_complete_series_marks_winner(self):
        s = _series("A", "TOR", 10, 4, "OTT", 9, 2, winning_id=10)
        view = build_bracket_view(2026, {"series": [s]})
        a = view["east_r1"][0]
        assert a["empty"] is False
        assert a["state"] == "complete"
        assert a["winner_abbrev"] == "TOR"
        assert a["top_wins"] == 4
        assert a["bottom_wins"] == 2

    def test_active_series_has_wins_but_no_winner(self):
        s = _series("B", "FLA", 13, 2, "TBL", 14, 1)
        view = build_bracket_view(2026, {"series": [s]})
        b = view["east_r1"][1]
        assert b["state"] == "active"
        assert b["winner_abbrev"] is None

    def test_upcoming_series_zero_zero(self):
        s = _series("C", "WSH", 15, 0, "MTL", 8, 0)
        view = build_bracket_view(2026, {"series": [s]})
        c = view["east_r1"][2]
        assert c["state"] == "upcoming"


class TestRoutingToRounds:
    def test_round_1_east_vs_west_by_letter(self):
        series = [
            _series("A", "T1", 1, 1, "T2", 2, 0),
            _series("E", "T3", 3, 1, "T4", 4, 0),
        ]
        view = build_bracket_view(2026, {"series": series})
        assert view["east_r1"][0]["top"]["abbrev"] == "T1"
        assert view["west_r1"][0]["top"]["abbrev"] == "T3"

    def test_round_2_routing(self):
        series = [
            _series("I", "T1", 1, 0, "T2", 2, 0, rnd=2),
            _series("K", "T3", 3, 0, "T4", 4, 0, rnd=2),
        ]
        view = build_bracket_view(2026, {"series": series})
        assert view["east_r2"][0]["top"]["abbrev"] == "T1"
        assert view["west_r2"][0]["top"]["abbrev"] == "T3"

    def test_conf_finals_routing(self):
        series = [
            _series("M", "T1", 1, 0, "T2", 2, 0, rnd=3),
            _series("N", "T3", 3, 0, "T4", 4, 0, rnd=3),
        ]
        view = build_bracket_view(2026, {"series": series})
        assert view["east_cf"][0]["top"]["abbrev"] == "T1"
        assert view["west_cf"][0]["top"]["abbrev"] == "T3"

    def test_cup_final_routing(self):
        series = [_series("O", "T1", 1, 2, "T2", 2, 4, rnd=4, winning_id=2)]
        view = build_bracket_view(2026, {"series": series})
        assert view["cup"][0]["bottom"]["abbrev"] == "T2"
        assert view["cup"][0]["winner_abbrev"] == "T2"


class TestSeriesIdLink:
    def test_series_id_format(self):
        s = _series("A", "TOR", 10, 0, "OTT", 9, 0)
        view = build_bracket_view(2026, {"series": [s]})
        assert view["east_r1"][0]["series_id"] == "2026-A"


class TestRoundsAccordionBundle:
    def test_rounds_has_four_entries(self):
        view = build_bracket_view(2026, {"series": []})
        assert len(view["rounds"]) == 4
        assert view["rounds"][0]["label"] == "First Round"
        assert view["rounds"][3]["label"] == "Stanley Cup Final"
        assert "east" in view["rounds"][0]
        assert "cup" in view["rounds"][3]