from sqlalchemy import Column, String, Boolean, Integer, DateTime, Text, ForeignKey
from sqlalchemy.dialects.postgresql import UUID, JSONB
from sqlalchemy.orm import relationship
from datetime import datetime
from app.database import Base
import uuid


class User(Base):
    __tablename__ = "users"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    wechat_openid = Column(String(255), unique=True, index=True)
    phone = Column(String(20), unique=True, index=True)
    username = Column(String(100))
    password_hash = Column(String(255))
    tier = Column(String(50), default="free")
    role = Column(String(20), default="user")
    is_active = Column(Boolean, default=True)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
    settings = Column(JSONB, default={
        "preferred_translate_provider": "auto",
        "reply_tone": "professional",
        "timezone": "Asia/Shanghai",
        "languages": ["zh", "en"],
    })

    products = relationship("Product", back_populates="user", cascade="all, delete-orphan")
    customers = relationship("Customer", back_populates="user", cascade="all, delete-orphan")
    conversations = relationship("Conversation", back_populates="user", cascade="all, delete-orphan")
    quotations = relationship("Quotation", back_populates="user", cascade="all, delete-orphan")


class Product(Base):
    __tablename__ = "products"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    user_id = Column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=False, index=True)
    name = Column(String(255), nullable=False)
    name_en = Column(String(255))
    description = Column(Text)
    description_en = Column(Text)
    category = Column(String(100))
    price = Column(String(50))
    price_unit = Column(String(20), default="USD")
    moq = Column(String(50))
    keywords = Column(JSONB, default=[])
    specifications = Column(JSONB, default={})
    images = Column(JSONB, default=[])
    is_active = Column(Boolean, default=True)
    created_at = Column(DateTime, default=datetime.utcnow)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    user = relationship("User", back_populates="products")