from datetime import datetime
from typing import List, Optional
from uuid import UUID
from pydantic import BaseModel, Field

class PriorityBase(BaseModel):
    """Base Pydantic model for priorities"""
    id: int
    description: str

    class Config:
        from_attributes = True

class PriorityCreate(PriorityBase):
    """Pydantic model for creating priorities"""
    pass

class PriorityResponse(PriorityBase):
    """Pydantic model for priority responses"""
    pass

class ChannelURLCreate(BaseModel):
    """Pydantic model for creating channel URLs"""
    url: str
    priority_id: int = Field(default=100, ge=100, le=300)  # Default to High, validate range

class ChannelURLBase(ChannelURLCreate):
    """Base Pydantic model for channel URL responses"""
    id: UUID
    in_use: bool
    created_at: datetime
    updated_at: datetime
    priority_id: int

    class Config:
        from_attributes = True

class ChannelURLResponse(ChannelURLBase):
    """Pydantic model for channel URL responses"""
    pass

class ChannelCreate(BaseModel):
    """Pydantic model for creating channels"""
    urls: List[ChannelURLCreate]  # List of URL objects with priority
    name: str
    group_title: str
    tvg_id: str
    tvg_logo: str
    tvg_name: str

class ChannelURLUpdate(BaseModel):
    """Pydantic model for updating channel URLs"""
    url: Optional[str] = None
    in_use: Optional[bool] = None
    priority_id: Optional[int] = Field(default=None, ge=100, le=300)

class ChannelUpdate(BaseModel):
    """Pydantic model for updating channels (all fields optional)"""
    name: Optional[str] = Field(None, min_length=1)
    group_title: Optional[str] = Field(None, min_length=1)
    tvg_id: Optional[str] = Field(None, min_length=1)
    tvg_logo: Optional[str] = None
    tvg_name: Optional[str] = Field(None, min_length=1)

class ChannelResponse(BaseModel):
    """Pydantic model for channel responses"""
    id: UUID
    name: str
    group_title: str
    tvg_id: str
    tvg_logo: str
    tvg_name: str
    urls: List[ChannelURLResponse]  # List of URL objects without channel_id
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True