"""
tests/test_settings.py
-----------------------
Tests for the Settings screen data layer and game-toggle logic.
UI smoke tests run only when a display is available.
"""

import pytest
from db.models import (
    get_all_games, get_game_by_name, get_draw_count,
    set_game_active, insert_draw,
    insert_fetch_log, get_last_fetch_per_source,
)
from db.database import get_db_stats


# ── Game toggle (model layer) ─────────────────────────────────────────────────

def test_game_starts_active(tmp_db):
    game = get_game_by_name("Powerball")
    assert game["active"] == 1


def test_disable_game(tmp_db):
    game = get_game_by_name("Powerball")
    set_game_active(game["id"], False)
    game = get_game_by_name("Powerball")
    assert game["active"] == 0


def test_enable_game_after_disable(tmp_db):
    game = get_game_by_name("Powerball")
    set_game_active(game["id"], False)
    set_game_active(game["id"], True)
    game = get_game_by_name("Powerball")
    assert game["active"] == 1


def test_disabled_game_excluded_from_active_only(tmp_db):
    game = get_game_by_name("Powerball")
    set_game_active(game["id"], False)
    active = get_all_games(active_only=True)
    names = [g["name"] for g in active]
    assert "Powerball" not in names
    assert "Mega Millions" in names


# ── DB stats ──────────────────────────────────────────────────────────────────

def test_db_stats_zero_on_fresh_db(tmp_db):
    stats = get_db_stats()
    assert all(v == 0 for v in stats.values())


def test_db_stats_reflects_inserts(tmp_db):
    pb = get_game_by_name("Powerball")
    insert_draw(pb["id"], "2024-01-01", [1, 2, 3, 4, 5], bonus=7)
    insert_draw(pb["id"], "2024-01-03", [5, 10, 20, 30, 40], bonus=15)
    stats = get_db_stats()
    assert stats["Powerball"] == 2
    assert stats["Mega Millions"] == 0


def test_draw_count_matches_db_stats(tmp_db):
    pb = get_game_by_name("Powerball")
    insert_draw(pb["id"], "2024-01-01", [1, 2, 3, 4, 5], bonus=7)
    assert get_draw_count(pb["id"]) == get_db_stats()["Powerball"]


# ── Last fetch per source ─────────────────────────────────────────────────────

def test_last_fetch_empty_on_fresh_db(tmp_db):
    assert get_last_fetch_per_source() == {}


def test_last_fetch_shows_all_sources(tmp_db):
    for src in ("powerball_ny", "megamillions_ny", "megamillions_tx"):
        insert_fetch_log(src, added=2, skipped=1, status="success")
    result = get_last_fetch_per_source()
    assert set(result.keys()) == {"powerball_ny", "megamillions_ny", "megamillions_tx"}


def test_last_fetch_returns_most_recent(tmp_db):
    insert_fetch_log("powerball_ny", added=1, skipped=0, status="success", message=None)
    insert_fetch_log("powerball_ny", added=5, skipped=2, status="success", message=None)
    result = get_last_fetch_per_source()
    assert result["powerball_ny"]["added"] == 5


def test_last_fetch_error_status_preserved(tmp_db):
    insert_fetch_log("powerball_ny", added=0, skipped=0, status="error", message="timeout")
    result = get_last_fetch_per_source()
    assert result["powerball_ny"]["status"] == "error"


# ── 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_screen_instantiates(tmp_db):
    import tkinter as tk
    from ui.settings import SettingsScreen

    root = tk.Tk()
    root.withdraw()
    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_game_toggle_updates_db(tmp_db):
    import tkinter as tk
    from ui.settings import SettingsScreen

    root = tk.Tk()
    root.withdraw()
    try:
        screen = SettingsScreen(root)
        screen.refresh()

        # Simulate unchecking Powerball via its BooleanVar
        pb = get_game_by_name("Powerball")
        var = screen._game_vars.get(pb["id"])
        assert var is not None
        var.set(False)
        screen._toggle_game(pb["id"], var)

        pb_after = get_game_by_name("Powerball")
        assert pb_after["active"] == 0
    finally:
        root.destroy()


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

    insert_fetch_log("powerball_ny", added=3, skipped=1, status="success")
    root = tk.Tk()
    root.withdraw()
    try:
        screen = SettingsScreen(root)
        screen.refresh()
        # No assertion on widget text — just verify no exceptions during refresh
        assert screen.winfo_exists()
    finally:
        root.destroy()