"""Warehouse model for inventory management"""

from datetime import datetime
from app import db


class Warehouse(db.Model):
    """Warehouse model - represents a storage location"""

    __tablename__ = "warehouses"

    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(200), nullable=False)
    code = db.Column(db.String(50), unique=True, nullable=False, index=True)
    address = db.Column(db.Text, nullable=True)
    contact_person = db.Column(db.String(200), nullable=True)
    contact_email = db.Column(db.String(200), nullable=True)
    contact_phone = db.Column(db.String(50), nullable=True)
    is_active = db.Column(db.Boolean, default=True, nullable=False)
    notes = db.Column(db.Text, nullable=True)
    created_at = db.Column(db.DateTime, default=datetime.utcnow, nullable=False)
    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
    created_by = db.Column(db.Integer, db.ForeignKey("users.id"), nullable=False, index=True)

    # Relationships
    stock_levels = db.relationship("WarehouseStock", backref="warehouse", lazy="dynamic", cascade="all, delete-orphan")
    stock_movements = db.relationship(
        "StockMovement", backref="warehouse", lazy="dynamic", cascade="all, delete-orphan"
    )

    def __init__(
        self,
        name,
        code,
        created_by,
        address=None,
        contact_person=None,
        contact_email=None,
        contact_phone=None,
        is_active=True,
        notes=None,
    ):
        self.name = name.strip()
        self.code = code.strip().upper()
        self.created_by = created_by
        self.address = address.strip() if address else None
        self.contact_person = contact_person.strip() if contact_person else None
        self.contact_email = contact_email.strip() if contact_email else None
        self.contact_phone = contact_phone.strip() if contact_phone else None
        self.is_active = is_active
        self.notes = notes.strip() if notes else None

    def __repr__(self):
        return f"<Warehouse {self.code} ({self.name})>"

    def to_dict(self):
        """Convert warehouse to dictionary"""
        return {
            "id": self.id,
            "name": self.name,
            "code": self.code,
            "address": self.address,
            "contact_person": self.contact_person,
            "contact_email": self.contact_email,
            "contact_phone": self.contact_phone,
            "is_active": self.is_active,
            "notes": self.notes,
            "created_at": self.created_at.isoformat() if self.created_at else None,
            "updated_at": self.updated_at.isoformat() if self.updated_at else None,
            "created_by": self.created_by,
        }