"""Schémas Phase 6 — Littérature : inventaire, vente, ajustement."""
from pydantic import BaseModel
from datetime import date, datetime
from uuid import UUID
from typing import Optional


# ── Littérature (inventaire) ──
class LitteratureCreate(BaseModel):
    titre: str
    categorie: str  # livre, brochure, depliant, pamphlet
    prix_coutant: Optional[float] = None
    quantite_stock: int = 0
    seuil_commande: int = 2
    code_bsg: Optional[str] = None


class LitteratureOut(BaseModel):
    id: UUID
    titre: str
    categorie: str
    prix_coutant: Optional[float] = None
    quantite_stock: int
    seuil_commande: int
    code_bsg: Optional[str] = None
    stock_bas: bool = False
    modifie_le: datetime

    model_config = {"from_attributes": True}


class LitteratureUpdate(BaseModel):
    titre: Optional[str] = None
    categorie: Optional[str] = None
    prix_coutant: Optional[float] = None
    seuil_commande: Optional[int] = None
    code_bsg: Optional[str] = None


# ── M5 Ajuster inventaire ──
class AjustementStock(BaseModel):
    quantite: int  # positif = ajout, négatif = retrait


# ── S3 Vente littérature ──
class VenteCreate(BaseModel):
    litterature_id: UUID
    reunion_id: Optional[UUID] = None
    quantite: int
    montant: float
    date_vente: date
    vendu_par_id: Optional[UUID] = None


class VenteOut(BaseModel):
    id: UUID
    litterature_titre: str
    quantite: int
    montant: float
    date_vente: date
    vendu_par_prenom: Optional[str] = None
    remis_tresorier: bool = False
    cree_le: datetime

    model_config = {"from_attributes": True}