# models/database/company.py
"""
Company model representing the business entity that owns one or more vendor brands.

A Company represents the legal/business entity with contact information,
while Vendors represent the individual brands/storefronts operated by that company.
"""

from sqlalchemy import Boolean, Column, ForeignKey, Integer, String, Text
from sqlalchemy.orm import relationship

from app.core.database import Base
from models.database.base import TimestampMixin


class Company(Base, TimestampMixin):
    """
    Represents a company (business entity) in the system.

    A company owns one or more vendor brands. All business/contact information
    is stored at the company level to avoid duplication.
    """

    __tablename__ = "companies"

    # ========================================================================
    # Basic Information
    # ========================================================================
    id = Column(Integer, primary_key=True, index=True)
    """Unique identifier for the company."""

    name = Column(String, nullable=False, index=True)
    """Company legal/business name."""

    description = Column(Text)
    """Optional description of the company."""

    # ========================================================================
    # Ownership
    # ========================================================================
    owner_user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
    """Foreign key to the user who owns this company."""

    # ========================================================================
    # Contact Information
    # ========================================================================
    contact_email = Column(String, nullable=False)
    """Primary business contact email."""

    contact_phone = Column(String)
    """Business phone number."""

    website = Column(String)
    """Company website URL."""

    # ========================================================================
    # Business Details
    # ========================================================================
    business_address = Column(Text)
    """Physical business address."""

    tax_number = Column(String)
    """Tax/VAT registration number."""

    # ========================================================================
    # Status Flags
    # ========================================================================
    is_active = Column(Boolean, default=True, nullable=False)
    """Whether the company is active. Affects all associated vendors."""

    is_verified = Column(Boolean, default=False, nullable=False)
    """Whether the company has been verified by platform admins."""

    # ========================================================================
    # Relationships
    # ========================================================================
    owner = relationship("User", back_populates="owned_companies")
    """The user who owns this company."""

    vendors = relationship(
        "Vendor",
        back_populates="company",
        cascade="all, delete-orphan",
        order_by="Vendor.name",
    )
    """All vendor brands operated by this company."""

    def __repr__(self):
        """String representation of the Company object."""
        return f"<Company(id={self.id}, name='{self.name}', vendors={len(self.vendors) if self.vendors else 0})>"

    # ========================================================================
    # Helper Properties
    # ========================================================================

    @property
    def vendor_count(self) -> int:
        """Get the number of vendors belonging to this company."""
        return len(self.vendors) if self.vendors else 0

    @property
    def active_vendor_count(self) -> int:
        """Get the number of active vendors belonging to this company."""
        if not self.vendors:
            return 0
        return sum(1 for v in self.vendors if v.is_active)