"""
arshipdesign.parametric — Generadores paramétricos de cascos.

Exporta la función unificada ``generate_hull`` y los constantes
de familia usados por el wizard de nuevo proyecto.

Uso rápido
----------
>>> from arshipdesign.parametric import generate_hull, HullFamily
>>> hull = generate_hull(
...     family=HullFamily.DISPLACEMENT,
...     lpp=15.0, beam=4.0, draft=1.60, depth=2.30,
...     cb=0.55,
... )
"""
from __future__ import annotations

from enum import Enum, auto
from typing import Any

from arshipdesign.core.hull import Hull


class HullFamily(str, Enum):
    """Familia de carena disponible en el wizard."""
    PLANING       = "planing"         # Planeador — V-fondo, chine dura
    DISPLACEMENT  = "displacement"    # Desplazamiento — carena redonda
    SEMI_DISP     = "semi_disp"       # Semi-desplazamiento
    WORKBOAT      = "workboat"        # Workboat / Supply / Remolcador
    SAILING       = "sailing"         # Velero monocasco fin keel
    MERCHANT      = "merchant"        # Buque mercante / Serie 60

    @property
    def label_es(self) -> str:
        return {
            "planing":     "Planeo",
            "displacement":"Desplazamiento",
            "semi_disp":   "Semi-desplazamiento",
            "workboat":    "Workboat / Supply",
            "sailing":     "Velero",
            "merchant":    "Mercante / Supply full",
        }[self.value]

    @property
    def cb_default(self) -> float:
        return {
            "planing":     0.43,
            "displacement":0.55,
            "semi_disp":   0.50,
            "workboat":    0.67,
            "sailing":     0.40,
            "merchant":    0.70,
        }[self.value]

    @property
    def cb_range(self) -> tuple[float, float]:
        return {
            "planing":     (0.38, 0.48),
            "displacement":(0.45, 0.65),
            "semi_disp":   (0.46, 0.58),
            "workboat":    (0.60, 0.75),
            "sailing":     (0.35, 0.46),
            "merchant":    (0.60, 0.82),
        }[self.value]

    @property
    def description_es(self) -> str:
        return {
            "planing":
                "Embarcación rápida con fondo en V y chine dura.\n"
                "Fn > 0.50 — lanchas, patrulleras, RIBs.",
            "displacement":
                "Carena redondeada de velocidad moderada.\n"
                "Fn 0.20–0.35 — cruceros, pesqueros, ferrys.",
            "semi_disp":
                "Compromiso entre planeo y desplazamiento.\n"
                "Fn 0.35–0.55 — yates de motor, patrulleras.",
            "workboat":
                "Sección cajón con pantoque duro.\n"
                "Fn < 0.22 — remolcadores, supply, barcazas.",
            "sailing":
                "Cuerpo fino con quilla de aleta.\n"
                "Veleros de recreo y regata.",
            "merchant":
                "Formas llenas tipo Serie 60.\n"
                "Fn < 0.20 — carga, RORO, buques de trabajo.",
        }[self.value]


# ---------------------------------------------------------------------------
# Función unificada
# ---------------------------------------------------------------------------

def generate_hull(
    family: HullFamily | str,
    lpp: float,
    beam: float,
    draft: float,
    depth: float | None = None,
    name: str = "",
    n_stations: int = 21,
    n_waterlines: int = 11,
    **kwargs: Any,
) -> Hull:
    """Genera un Hull paramétrico de la familia indicada.

    Parámetros
    ----------
    family : HullFamily
        Tipo de carena (ver HullFamily).
    lpp : float
        Eslora entre perpendiculares [m].
    beam : float
        Manga máxima [m].
    draft : float
        Calado de diseño [m].
    depth : float, optional
        Puntal de trazado [m]. Si es None usa draft * 1.45.
    name : str
        Nombre del proyecto/casco.
    n_stations : int
        Número de estaciones transversales (≥ 7, default 21).
    n_waterlines : int
        Número de líneas de agua (≥ 5, default 11).
    **kwargs
        Parámetros adicionales específicos de cada familia
        (p.ej. deadrise_mid para planing, cb para displacement, etc.)

    Retorna
    -------
    Hull
    """
    fam = HullFamily(family) if isinstance(family, str) else family
    if depth is None:
        depth = draft * 1.45

    if not name:
        name = f"{fam.label_es} {lpp:.0f}m"

    common = dict(
        name=name, lpp=lpp, beam=beam, draft=draft, depth=depth,
        n_stations=n_stations, n_waterlines=n_waterlines,
    )
    common.update(kwargs)

    if fam == HullFamily.PLANING:
        from arshipdesign.parametric.wizard_planing import make_planing_hull
        return make_planing_hull(**common)

    elif fam in (HullFamily.DISPLACEMENT, HullFamily.SEMI_DISP):
        from arshipdesign.parametric.wizard_cruiser import make_displacement_hull
        if fam == HullFamily.SEMI_DISP and "cb" not in kwargs:
            common.setdefault("cb", 0.50)
        return make_displacement_hull(**common)

    elif fam == HullFamily.WORKBOAT:
        from arshipdesign.parametric.wizard_workboat import make_workboat_hull
        return make_workboat_hull(**common)

    elif fam == HullFamily.SAILING:
        from arshipdesign.parametric.wizard_sailing_mono import make_sailing_hull
        return make_sailing_hull(**common)

    elif fam == HullFamily.MERCHANT:
        from arshipdesign.parametric.series60 import make_merchant_hull
        return make_merchant_hull(**common)

    else:
        raise ValueError(f"Familia de carena desconocida: {fam!r}")