# services/tenant/app/models/tenants.py - FIXED VERSION
"""
Tenant models for bakery management - FIXED
Removed cross-service User relationship to eliminate circular dependencies
"""

from sqlalchemy import Column, String, Boolean, DateTime, Float, ForeignKey, Text, Integer, JSON
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import relationship
from datetime import datetime, timezone
import uuid

from shared.database.base import Base

class Tenant(Base):
    """Tenant/Bakery model"""
    __tablename__ = "tenants"
    
    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    name = Column(String(200), nullable=False)
    subdomain = Column(String(100), unique=True)
    business_type = Column(String(100), default="bakery")
    business_model = Column(String(100), default="individual_bakery")  # individual_bakery, central_baker_satellite, retail_bakery, hybrid_bakery
    
    # Location info
    address = Column(Text, nullable=False)
    city = Column(String(100), default="Madrid")
    postal_code = Column(String(10), nullable=False)
    latitude = Column(Float)
    longitude = Column(Float)
    
    # Contact info
    phone = Column(String(20))
    email = Column(String(255))
    
    # Status
    is_active = Column(Boolean, default=True)
    subscription_tier = Column(String(50), default="starter")
    
    # ML status
    ml_model_trained = Column(Boolean, default=False)
    last_training_date = Column(DateTime(timezone=True))
    
    # Ownership (user_id without FK - cross-service reference)
    owner_id = Column(UUID(as_uuid=True), nullable=False, index=True)
    
    # Timestamps
    created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
    updated_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc), onupdate=lambda: datetime.now(timezone.utc))

    # Relationships - only within tenant service
    members = relationship("TenantMember", back_populates="tenant", cascade="all, delete-orphan")
    
    # REMOVED: users relationship - no cross-service SQLAlchemy relationships
    
    def __repr__(self):
        return f"<Tenant(id={self.id}, name={self.name})>"

class TenantMember(Base):
    """Tenant membership model for team access"""
    __tablename__ = "tenant_members"
    
    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    tenant_id = Column(UUID(as_uuid=True), ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False)
    user_id = Column(UUID(as_uuid=True), nullable=False, index=True)  # No FK - cross-service reference
    
    # Role and permissions specific to this tenant
    role = Column(String(50), default="member")  # owner, admin, member, viewer
    permissions = Column(Text)  # JSON string of permissions
    
    # Status
    is_active = Column(Boolean, default=True)
    invited_by = Column(UUID(as_uuid=True))  # No FK - cross-service reference
    invited_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
    joined_at = Column(DateTime(timezone=True))
    
    created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))

    # Relationships - only within tenant service
    tenant = relationship("Tenant", back_populates="members")
    
    # REMOVED: user relationship - no cross-service SQLAlchemy relationships
    
    def __repr__(self):
        return f"<TenantMember(tenant_id={self.tenant_id}, user_id={self.user_id}, role={self.role})>"

# Additional models for subscriptions, plans, etc.
class Subscription(Base):
    """Subscription model for tenant billing"""
    __tablename__ = "subscriptions"
    
    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    tenant_id = Column(UUID(as_uuid=True), ForeignKey("tenants.id", ondelete="CASCADE"), nullable=False)
    
    plan = Column(String(50), default="starter")  # starter, professional, enterprise
    status = Column(String(50), default="active")  # active, suspended, cancelled
    
    # Billing
    monthly_price = Column(Float, default=0.0)
    billing_cycle = Column(String(20), default="monthly")  # monthly, yearly
    next_billing_date = Column(DateTime(timezone=True))
    trial_ends_at = Column(DateTime(timezone=True))
    
    # Limits
    max_users = Column(Integer, default=5)
    max_locations = Column(Integer, default=1)
    max_products = Column(Integer, default=50)
    
    # Features - Store plan features as JSON
    features = Column(JSON)
    
    # Timestamps
    created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
    updated_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc), onupdate=lambda: datetime.now(timezone.utc))
    
    # Relationships
    tenant = relationship("Tenant")
    
    def __repr__(self):
        return f"<Subscription(tenant_id={self.tenant_id}, plan={self.plan}, status={self.status})>"