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

import pytest

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,
    },
}


@pytest.fixture(autouse=True)
def _secrets_env(monkeypatch: pytest.MonkeyPatch) -> None:
    """Provide valid Discord/Telegram env vars for every test in this module."""
    monkeypatch.setenv("ATM_DISCORD_URL", "https://example.com/hook")
    monkeypatch.setenv("ATM_TG_TOKEN", "123:tok")
    monkeypatch.setenv("ATM_TG_CHAT", "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"]},
        }))


# ---------------------------------------------------------------------------
# Secrets migration: Discord + Telegram creds live in env vars, not TOML
# ---------------------------------------------------------------------------

def test_missing_discord_url_raises(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.delenv("ATM_DISCORD_URL", raising=False)
    with pytest.raises(ValueError, match="ATM_DISCORD_URL"):
        Config._from_dict(_with_opts({}))


def test_missing_tg_token_raises(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.delenv("ATM_TG_TOKEN", raising=False)
    with pytest.raises(ValueError, match="ATM_TG_TOKEN"):
        Config._from_dict(_with_opts({}))


def test_missing_tg_chat_raises(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.delenv("ATM_TG_CHAT", raising=False)
    with pytest.raises(ValueError, match="ATM_TG_CHAT"):
        Config._from_dict(_with_opts({}))


def test_placeholder_webhook_rejected(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("ATM_DISCORD_URL", "https://discord.com/api/webhooks/REPLACE_ME")
    with pytest.raises(ValueError, match="placeholder"):
        Config._from_dict(_with_opts({}))


def test_placeholder_token_rejected(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("ATM_TG_TOKEN", "REPLACE_ME")
    with pytest.raises(ValueError, match="placeholder"):
        Config._from_dict(_with_opts({}))


def test_chat_id_non_numeric_rejected(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("ATM_TG_CHAT", "abc123")
    with pytest.raises(ValueError, match="chat_id"):
        Config._from_dict(_with_opts({}))


def test_chat_id_negative_groups_accepted(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("ATM_TG_CHAT", "-5108062256")
    cfg = Config._from_dict(_with_opts({}))
    assert cfg.telegram.chat_id == "-5108062256"


def test_telegram_section_optional() -> None:
    """TOML without [telegram] still loads; secrets come from env; options use defaults."""
    data = {k: v for k, v in _BASE.items()}
    cfg = Config._from_dict(data)
    assert cfg.telegram.bot_token == "123:tok"
    assert cfg.telegram.chat_id == "123"
    assert cfg.telegram.poll_timeout_s == 30
    assert cfg.telegram.auto_poll_interval_s == 180
    assert cfg.telegram.allowed_chat_ids == ("123",)


def test_telegram_non_secret_keys_from_toml() -> None:
    data = {k: v for k, v in _BASE.items()}
    data["telegram"] = {
        "poll_timeout_s": 42,
        "auto_poll_interval_s": 999,
        "allowed_chat_ids": ["123", "456"],
    }
    cfg = Config._from_dict(data)
    assert cfg.telegram.poll_timeout_s == 42
    assert cfg.telegram.auto_poll_interval_s == 999
    assert cfg.telegram.allowed_chat_ids == ("123", "456")


def test_regression_post_migration_load(
    tmp_path, monkeypatch: pytest.MonkeyPatch
) -> None:
    """Loading a real post-migrate TOML (no [discord]/[telegram] secrets) works.

    IRON RULE: prevents re-regression of the secret-in-TOML pattern.
    """
    fixture = tmp_path / "post_migration_sample.toml"
    fixture.write_text(
        'window_title = "X"\n'
        "\n"
        "[dot_roi]\nx=0\ny=0\nw=10\nh=10\n"
        "[chart_roi]\nx=0\ny=0\nw=100\nh=100\n"
        "[colors.turquoise]\nrgb=[0,253,253]\ntolerance=60.0\n"
        "[colors.yellow]\nrgb=[253,253,0]\ntolerance=60.0\n"
        "[colors.dark_green]\nrgb=[0,122,0]\ntolerance=60.0\n"
        "[colors.dark_red]\nrgb=[128,0,0]\ntolerance=60.0\n"
        "[colors.light_green]\nrgb=[0,255,0]\ntolerance=60.0\n"
        "[colors.light_red]\nrgb=[255,0,0]\ntolerance=60.0\n"
        "[colors.gray]\nrgb=[128,128,128]\ntolerance=60.0\n"
        "[colors.background]\nrgb=[0,0,0]\ntolerance=25.0\n"
        "[y_axis]\np1_y=100\np1_price=485.0\np2_y=200\np2_price=484.0\n"
        "[canary]\nbaseline_phash=\"abc\"\ndrift_threshold=8\n"
        "[canary.roi]\nx=0\ny=0\nw=10\nh=10\n"
        "[telegram]\npoll_timeout_s=30\nauto_poll_interval_s=180\n"
        "[options]\ndebounce_depth=1\nloop_interval_s=5.0\n",
        encoding="utf-8",
    )
    monkeypatch.setenv("ATM_DISCORD_URL", "https://disc.example/x")
    monkeypatch.setenv("ATM_TG_TOKEN", "999:tok")
    monkeypatch.setenv("ATM_TG_CHAT", "-42")
    cfg = Config.load(fixture)
    # Secrets sourced from env
    assert cfg.discord.webhook_url == "https://disc.example/x"
    assert cfg.telegram.bot_token == "999:tok"
    assert cfg.telegram.chat_id == "-42"
    # Non-secret telegram keys sourced from TOML
    assert cfg.telegram.poll_timeout_s == 30
    # Calibration values sourced from TOML
    assert cfg.colors["turquoise"].rgb == (0, 253, 253)
    # TOML does not contain any of the secret markers
    text = fixture.read_text(encoding="utf-8")
    for marker in ("webhook_url", "bot_token", "chat_id"):
        assert marker not in text, f"TOML still contains secret marker: {marker}"
