"""Base entity class for characters in the world."""

from __future__ import annotations

from dataclasses import dataclass, field

from mudlib.object import Object


@dataclass
class Entity(Object):
    """Base class for anything with position and identity in the world.

    Inherits name, location from Object. Narrows x, y to int (entities
    always have spatial coordinates).
    """

    # Entities always have spatial coordinates (override Object's int | None)
    x: int = 0
    y: int = 0
    # Combat stats
    pl: float = 100.0  # power level (health and damage multiplier)
    max_pl: float = 100.0  # maximum power level
    stamina: float = 100.0  # current stamina
    max_stamina: float = 100.0  # stamina ceiling
    defense_locked_until: float = 0.0  # monotonic time when defense recovery ends
    resting: bool = False  # whether this entity is currently resting

    def can_accept(self, obj: Object) -> bool:
        """Entities accept portable Things (inventory)."""
        from mudlib.thing import Thing

        return isinstance(obj, Thing) and obj.portable

    async def send(self, message: str) -> None:
        """Send a message to this entity. Base implementation is a no-op."""
        pass


@dataclass
class Mob(Entity):
    """Represents a non-player character (NPC) in the world."""

    description: str = ""
    alive: bool = True
    moves: list[str] = field(default_factory=list)
    next_action_at: float = 0.0