"""KevinBridgeConfig — env-var settings for the Kevin signal bridge service.

All env vars use the TRADING_ prefix consumed by shared.config.BaseConfig.
"""

from __future__ import annotations

import json
from typing import Any

from pydantic import field_validator

from shared.config import BaseConfig


class KevinBridgeConfig(BaseConfig):
    """Env-var driven settings for the bridge service."""

    # Signal translation
    kevin_min_conviction: float = 0.60
    kevin_max_mention_age_hours: int = 48
    kevin_hold_days: dict[str, int] = {
        "days": 3,
        "weeks": 10,
        "months": 45,
        "long_term": 90,
        "unspecified": 10,
    }

    # Sizing
    kevin_base_position_pct: float = 0.04
    kevin_min_trade_usd: float = 500.0
    kevin_max_trade_usd: float = 5000.0
    kevin_max_per_ticker_usd: float = 7500.0

    # Exits
    kevin_stop_loss_pct: float = 0.08
    kevin_take_profit_pct: float = 0.20
    kevin_avoid_closes_longs: bool = True
    kevin_avoid_blocks_days: int = 7

    # Aggregation
    kevin_mention_boost_per_repeat: float = 0.05
    kevin_max_mention_boost: float = 0.20

    # Risk
    kevin_max_position_pct: float = 0.075
    kevin_daily_trade_cap: int = 5
    kevin_daily_alloc_cap_usd: float = 15000.0
    kevin_daily_loss_circuit_pct: float = 0.03
    kevin_equity_drawdown_halt_pct: float = 0.80

    # Plumbing
    kevin_bridge_poll_interval_seconds: int = 60
    kevin_bridge_exit_scan_cron: str = "35 9 * * 1-5"
    kevin_enable_trading: bool = False  # master kill-switch

    @field_validator("kevin_hold_days", mode="before")
    @classmethod
    def _parse_hold_days(cls, v: Any) -> Any:
        if isinstance(v, str):
            return json.loads(v)
        return v