"""
Event definitions for microservices communication
"""

from dataclasses import dataclass
from datetime import datetime
from typing import Dict, Any, Optional
import uuid

@dataclass
class BaseEvent:
    """Base event class"""
    event_id: str
    event_type: str
    service_name: str
    timestamp: datetime
    data: Dict[str, Any]
    correlation_id: Optional[str] = None
    
    def __post_init__(self):
        if not self.event_id:
            self.event_id = str(uuid.uuid4())
        if not self.timestamp:
            self.timestamp =  datetime.now(datetime.timezone.utc)

# Training Events
@dataclass
class TrainingStartedEvent(BaseEvent):
    event_type: str = "training.started"

@dataclass
class TrainingCompletedEvent(BaseEvent):
    event_type: str = "training.completed"

@dataclass
class TrainingFailedEvent(BaseEvent):
    event_type: str = "training.failed"

# Forecasting Events
@dataclass
class ForecastGeneratedEvent(BaseEvent):
    event_type: str = "forecast.generated"

@dataclass
class ForecastRequestedEvent(BaseEvent):
    event_type: str = "forecast.requested"

# User Events
@dataclass
class UserRegisteredEvent(BaseEvent):
    event_type: str = "user.registered"

@dataclass
class UserLoginEvent(BaseEvent):
    event_type: str = "user.login"

# Tenant Events
@dataclass
class TenantCreatedEvent(BaseEvent):
    event_type: str = "tenant.created"

@dataclass
class TenantUpdatedEvent(BaseEvent):
    event_type: str = "tenant.updated"

# Notification Events
@dataclass
class NotificationSentEvent(BaseEvent):
    event_type: str = "notification.sent"

@dataclass
class NotificationFailedEvent(BaseEvent):
    event_type: str = "notification.failed"