from sqlalchemy import (
    JSON,
    Boolean,
    Column,
    DateTime,
    ForeignKey,
    Integer,
    Numeric,
    String,
)
from sqlalchemy.orm import relationship

from app.core.database import Base

from .base import TimestampMixin


class Customer(Base, TimestampMixin):
    __tablename__ = "customers"

    id = Column(Integer, primary_key=True, index=True)
    vendor_id = Column(Integer, ForeignKey("vendors.id"), nullable=False)
    email = Column(
        String(255), nullable=False, index=True
    )  # Unique within vendor scope
    hashed_password = Column(String(255), nullable=False)
    first_name = Column(String(100))
    last_name = Column(String(100))
    phone = Column(String(50))
    customer_number = Column(
        String(100), nullable=False, index=True
    )  # Vendor-specific ID
    preferences = Column(JSON, default=dict)
    marketing_consent = Column(Boolean, default=False)
    last_order_date = Column(DateTime)
    total_orders = Column(Integer, default=0)
    total_spent = Column(Numeric(10, 2), default=0)
    is_active = Column(Boolean, default=True, nullable=False)

    # Language preference (NULL = use vendor storefront_language default)
    # Supported: en, fr, de, lb
    preferred_language = Column(String(5), nullable=True)

    # Relationships
    vendor = relationship("Vendor", back_populates="customers")
    addresses = relationship("CustomerAddress", back_populates="customer")
    orders = relationship("Order", back_populates="customer")

    def __repr__(self):
        return f"<Customer(id={self.id}, vendor_id={self.vendor_id}, email='{self.email}')>"

    @property
    def full_name(self):
        if self.first_name and self.last_name:
            return f"{self.first_name} {self.last_name}"
        return self.email


class CustomerAddress(Base, TimestampMixin):
    __tablename__ = "customer_addresses"

    id = Column(Integer, primary_key=True, index=True)
    vendor_id = Column(Integer, ForeignKey("vendors.id"), nullable=False)
    customer_id = Column(Integer, ForeignKey("customers.id"), nullable=False)
    address_type = Column(String(50), nullable=False)  # 'billing', 'shipping'
    first_name = Column(String(100), nullable=False)
    last_name = Column(String(100), nullable=False)
    company = Column(String(200))
    address_line_1 = Column(String(255), nullable=False)
    address_line_2 = Column(String(255))
    city = Column(String(100), nullable=False)
    postal_code = Column(String(20), nullable=False)
    country = Column(String(100), nullable=False)
    is_default = Column(Boolean, default=False)

    # Relationships
    vendor = relationship("Vendor")
    customer = relationship("Customer", back_populates="addresses")

    def __repr__(self):
        return f"<CustomerAddress(id={self.id}, customer_id={self.customer_id}, type='{self.address_type}')>"