"""
tests/test_custom_games.py
---------------------------
Tests for add_game() and delete_game() in db/models.py,
covering custom game management.
"""

import pytest
from db.models import (
    add_game, delete_game, get_all_games, get_game_by_name,
    get_game_by_id, insert_draw, _BUILTIN_GAMES,
)


# ── add_game ──────────────────────────────────────────────────────────────────

def test_add_game_creates_row(tmp_db):
    gid = add_game("EuroMillions", 5, 50, bonus_count=2, bonus_max=12)
    game = get_game_by_id(gid)
    assert game is not None
    assert game["name"] == "EuroMillions"


def test_add_game_returns_id(tmp_db):
    gid = add_game("UK Lotto", 6, 59)
    assert isinstance(gid, int)
    assert gid > 0


def test_add_game_default_active(tmp_db):
    gid = add_game("Test Game", 5, 45)
    game = get_game_by_id(gid)
    assert game["active"] == 1


def test_add_game_appears_in_get_all_games(tmp_db):
    add_game("EuroMillions", 5, 50, bonus_count=2, bonus_max=12)
    names = [g["name"] for g in get_all_games()]
    assert "EuroMillions" in names


def test_add_game_parameters_stored_correctly(tmp_db):
    gid = add_game("Custom", 6, 45, bonus_count=1, bonus_max=20)
    game = get_game_by_id(gid)
    assert game["main_count"] == 6
    assert game["main_max"]   == 45
    assert game["bonus_count"] == 1
    assert game["bonus_max"]   == 20


def test_add_game_duplicate_name_raises(tmp_db):
    add_game("Test Game", 5, 45)
    with pytest.raises(ValueError, match="already exists"):
        add_game("Test Game", 6, 50)


def test_add_game_blank_name_raises(tmp_db):
    with pytest.raises(ValueError, match="blank"):
        add_game("   ", 5, 45)


def test_add_game_no_bonus(tmp_db):
    gid = add_game("No Bonus Game", 6, 49, bonus_count=0, bonus_max=0)
    game = get_game_by_id(gid)
    assert game["bonus_count"] == 0
    assert game["bonus_max"]   == 0


def test_add_game_builtin_name_raises(tmp_db):
    with pytest.raises(ValueError):
        add_game("Powerball", 5, 69, 1, 26)


# ── delete_game ───────────────────────────────────────────────────────────────

def test_delete_custom_game_no_draws(tmp_db):
    gid = add_game("Temp Game", 5, 45)
    result = delete_game(gid)
    assert result is True
    assert get_game_by_id(gid) is None


def test_delete_custom_game_removed_from_list(tmp_db):
    gid = add_game("Gone Game", 5, 45)
    delete_game(gid)
    names = [g["name"] for g in get_all_games()]
    assert "Gone Game" not in names


def test_delete_game_with_draws_returns_false(tmp_db):
    gid = add_game("Active Game", 5, 45)
    insert_draw(gid, "2024-01-01", [1, 2, 3, 4, 5])
    result = delete_game(gid)
    assert result is False
    assert get_game_by_id(gid) is not None


def test_delete_builtin_powerball_returns_false(tmp_db):
    pb = get_game_by_name("Powerball")
    result = delete_game(pb["id"])
    assert result is False
    assert get_game_by_name("Powerball") is not None


def test_delete_builtin_mega_millions_returns_false(tmp_db):
    mm = get_game_by_name("Mega Millions")
    result = delete_game(mm["id"])
    assert result is False


def test_delete_nonexistent_game_returns_false(tmp_db):
    result = delete_game(99999)
    assert result is False


def test_delete_game_clears_predictions(tmp_db):
    from db.models import insert_prediction, get_predictions
    gid = add_game("Prediction Game", 5, 45)
    insert_prediction(gid, "Hot Numbers", [1, 2, 3, 4, 5])
    delete_game(gid)
    preds = get_predictions(game_id=gid, limit=100)
    assert preds == []


# ── integration: custom game works with existing features ─────────────────────

def test_custom_game_works_with_frequency_analysis(tmp_db):
    from core.analyzer import frequency_analysis
    gid = add_game("My Lottery", 6, 49, bonus_count=1, bonus_max=10)
    insert_draw(gid, "2024-01-01", [1, 7, 14, 22, 35, 49])
    insert_draw(gid, "2024-01-03", [1, 7, 15, 23, 36, 48])
    freq = frequency_analysis(gid)
    assert freq[1] == 2
    assert freq[7] == 2


def test_custom_game_works_with_predictor(tmp_db):
    from core.predictor import hot_numbers
    gid = add_game("My Lottery", 6, 49, bonus_count=1, bonus_max=10)
    insert_draw(gid, "2024-01-01", [1, 7, 14, 22, 35, 49], bonus=3)
    insert_draw(gid, "2024-01-03", [1, 7, 15, 23, 36, 48], bonus=5)
    result = hot_numbers(gid)
    assert len(result["numbers"]) == 6
    assert all(1 <= n <= 49 for n in result["numbers"])


# ── UI smoke tests ────────────────────────────────────────────────────────────

def _has_display():
    try:
        import tkinter as tk
        r = tk.Tk(); r.withdraw(); r.destroy()
        return True
    except Exception:
        return False


@pytest.mark.skipif(not _has_display(), reason="no display available")
def test_settings_shows_add_button(tmp_db):
    import tkinter as tk
    from ui.settings import SettingsScreen

    try:
        root = tk.Tk()
        root.withdraw()
    except Exception:
        pytest.skip("Tkinter init failed")
    try:
        screen = SettingsScreen(root)
        screen.refresh()
        assert screen.winfo_exists()
    finally:
        root.destroy()


@pytest.mark.skipif(not _has_display(), reason="no display available")
def test_settings_custom_game_shows_delete_button(tmp_db):
    import tkinter as tk
    from ui.settings import SettingsScreen

    add_game("My Custom Lottery", 5, 50)
    try:
        root = tk.Tk()
        root.withdraw()
    except Exception:
        pytest.skip("Tkinter init failed")
    try:
        screen = SettingsScreen(root)
        screen.refresh()
        assert screen.winfo_exists()
    finally:
        root.destroy()