"""Tests for atm.config — focused on attach_screenshots parsing (legacy bool vs new dict)."""
from __future__ import annotations

from atm.config import AlertsCfg, Config


_BASE = {
    "window_title": "X",
    "dot_roi": {"x": 0, "y": 0, "w": 10, "h": 10},
    "chart_roi": {"x": 0, "y": 0, "w": 100, "h": 100},
    "colors": {
        "turquoise":   {"rgb": [64, 224, 208], "tolerance": 30.0},
        "yellow":      {"rgb": [255, 215, 0],  "tolerance": 30.0},
        "dark_green":  {"rgb": [0, 100, 0],    "tolerance": 30.0},
        "dark_red":    {"rgb": [139, 0, 0],    "tolerance": 30.0},
        "light_green": {"rgb": [0, 230, 118],  "tolerance": 30.0},
        "light_red":   {"rgb": [255, 82, 82],  "tolerance": 30.0},
        "gray":        {"rgb": [128, 128, 128], "tolerance": 25.0},
    },
    "y_axis": {"p1_y": 100, "p1_price": 485.0, "p2_y": 200, "p2_price": 484.0},
    "canary": {
        "roi": {"x": 0, "y": 0, "w": 10, "h": 10},
        "baseline_phash": "0" * 16,
        "drift_threshold": 8,
    },
    "discord": {"webhook_url": "https://example.com/hook"},
    "telegram": {"bot_token": "tok", "chat_id": "123"},
}


def _with_opts(opts: dict) -> dict:
    d = {k: v for k, v in _BASE.items()}
    d["options"] = opts
    return d


def test_attach_screenshots_default_all_true() -> None:
    """Missing attach_screenshots → all fields True."""
    cfg = Config._from_dict(_with_opts({}))
    assert cfg.attach_screenshots == AlertsCfg(
        late_start=True, catchup=True, arm=True, prime=True, trigger=True,
    )


def test_attach_screenshots_legacy_bool_true() -> None:
    """Legacy: attach_screenshots = true → all fields True."""
    cfg = Config._from_dict(_with_opts({"attach_screenshots": True}))
    assert cfg.attach_screenshots.arm is True
    assert cfg.attach_screenshots.catchup is True
    assert cfg.attach_screenshots.trigger is True


def test_attach_screenshots_legacy_bool_false() -> None:
    """Legacy: attach_screenshots = false → all fields False."""
    cfg = Config._from_dict(_with_opts({"attach_screenshots": False}))
    assert cfg.attach_screenshots.arm is False
    assert cfg.attach_screenshots.catchup is False
    assert cfg.attach_screenshots.trigger is False
    assert cfg.attach_screenshots.late_start is False


def test_attach_screenshots_partial_dict() -> None:
    """Dict form with only some keys → specified False, others default True."""
    cfg = Config._from_dict(_with_opts({
        "attach_screenshots": {"arm": False, "prime": False},
    }))
    assert cfg.attach_screenshots.arm is False
    assert cfg.attach_screenshots.prime is False
    # Unspecified → dataclass default True
    assert cfg.attach_screenshots.trigger is True
    assert cfg.attach_screenshots.catchup is True
    assert cfg.attach_screenshots.late_start is True


def test_attach_screenshots_full_dict() -> None:
    """Dict form with all keys specified."""
    cfg = Config._from_dict(_with_opts({
        "attach_screenshots": {
            "late_start": False,
            "catchup": True,
            "arm": False,
            "prime": True,
            "trigger": True,
        },
    }))
    assert cfg.attach_screenshots.late_start is False
    assert cfg.attach_screenshots.catchup is True
    assert cfg.attach_screenshots.arm is False
    assert cfg.attach_screenshots.prime is True
    assert cfg.attach_screenshots.trigger is True


def test_attach_screenshots_unknown_keys_ignored() -> None:
    """Unknown keys are silently dropped (dataclass won't accept them)."""
    cfg = Config._from_dict(_with_opts({
        "attach_screenshots": {"arm": False, "nonexistent_knob": True},
    }))
    assert cfg.attach_screenshots.arm is False
    # Should not raise even with unknown key


# ---------------------------------------------------------------------------
# Commit 3: AlertBehaviorCfg (fire_on_phase_skip)
# ---------------------------------------------------------------------------

def test_alerts_default_fire_on_phase_skip_true() -> None:
    cfg = Config._from_dict(_with_opts({}))
    assert cfg.alerts.fire_on_phase_skip is True


def test_alerts_fire_on_phase_skip_can_be_disabled() -> None:
    cfg = Config._from_dict(_with_opts({"alerts": {"fire_on_phase_skip": False}}))
    assert cfg.alerts.fire_on_phase_skip is False


# ---------------------------------------------------------------------------
# Commit 4: OperatingHoursCfg parsing + tz cache
# ---------------------------------------------------------------------------

def test_operating_hours_default_disabled() -> None:
    cfg = Config._from_dict(_with_opts({}))
    assert cfg.operating_hours.enabled is False
    assert cfg.operating_hours.timezone == "America/New_York"
    assert cfg.operating_hours._tz_cache is None


def test_operating_hours_enabled_caches_tz() -> None:
    cfg = Config._from_dict(_with_opts({
        "operating_hours": {
            "enabled": True,
            "timezone": "America/New_York",
            "weekdays": ["MON", "TUE", "WED", "THU", "FRI"],
            "start_hhmm": "09:30",
            "stop_hhmm": "16:00",
        }
    }))
    assert cfg.operating_hours.enabled is True
    assert cfg.operating_hours._tz_cache is not None
    assert str(cfg.operating_hours._tz_cache) == "America/New_York"


def test_operating_hours_invalid_tz_raises_valueerror() -> None:
    import pytest
    with pytest.raises(ValueError, match="operating_hours.timezone"):
        Config._from_dict(_with_opts({
            "operating_hours": {"enabled": True, "timezone": "Not/A_Zone"},
        }))


def test_operating_hours_invalid_weekday_raises_valueerror() -> None:
    import pytest
    with pytest.raises(ValueError, match="weekdays"):
        Config._from_dict(_with_opts({
            "operating_hours": {"enabled": True, "weekdays": ["XYZ"]},
        }))
