from datetime import datetime
from typing import Optional, List, Dict, Any
from pydantic import BaseModel, ConfigDict

# Channel Schemas
class ChannelBase(BaseModel):
    name: str
    type: str
    config: Dict[str, Any] = {}
    tags: List[str] = []
    is_active: bool = True

class ChannelCreate(ChannelBase):
    pass

class ChannelUpdate(BaseModel):
    name: Optional[str] = None
    type: Optional[str] = None
    config: Optional[Dict[str, Any]] = None
    tags: Optional[List[str]] = None
    is_active: Optional[bool] = None

class Channel(ChannelBase):
    model_config = ConfigDict(from_attributes=True)
    
    id: int
    created_at: datetime
    updated_at: datetime

class ChannelList(BaseModel):
    channels: List[Channel]
    total: int

# Notification Schemas
class NotificationBase(BaseModel):
    title: Optional[str] = None
    body: str
    priority: str = "normal"

class NotificationCreate(NotificationBase):
    channel_id: int

class Notification(NotificationBase):
    model_config = ConfigDict(from_attributes=True)
    
    id: int
    channel_id: int
    status: str
    error_msg: Optional[str] = None
    sent_at: Optional[datetime] = None
    created_at: datetime

class NotificationResult(BaseModel):
    channel: str
    channel_id: int
    status: str
    notification_id: int
    error_msg: Optional[str] = None

class NotifyRequest(BaseModel):
    channels: Optional[List[str]] = None
    tags: Optional[List[str]] = None
    title: Optional[str] = None
    body: str
    priority: str = "normal"

class NotifyResponse(BaseModel):
    success: bool
    results: List[NotificationResult]
    total: int
    sent: int
    failed: int