from pydantic import BaseModel, Field, field_validator
from typing import Optional, Dict, Any
from datetime import datetime
from uuid import UUID
import re


class StreamCreate(BaseModel):
    title: str = Field(..., min_length=1, max_length=200)
    description: Optional[str] = Field(None, max_length=5000)
    is_public: bool = True


class StreamManualCreate(BaseModel):
    title: Optional[str] = Field(None, min_length=1, max_length=200)
    description: Optional[str] = Field(None, max_length=5000)
    hls_path: str = Field(..., min_length=1, max_length=500)
    thumbnail_timestamp: Optional[float] = Field(None, ge=0)  # Timestamp in seconds
    is_public: bool = False


class StreamUpdate(BaseModel):
    title: Optional[str] = Field(None, min_length=1, max_length=200)
    description: Optional[str] = Field(None, max_length=5000)
    is_public: Optional[bool] = None
    twitch_vod_id: Optional[str] = Field(None, max_length=20)
    streamer: Optional[str] = Field(None, max_length=100)
    view_count: Optional[int] = None
    hls_path: Optional[str] = Field(None, max_length=500)
    thumbnail_url: Optional[str] = Field(None, max_length=500)

    @field_validator('twitch_vod_id')
    @classmethod
    def validate_vod_id(cls, v: Optional[str]) -> Optional[str]:
        if v is not None and v and not v.isdigit():
            raise ValueError('VOD ID must be numeric')
        return v


class StreamResponse(BaseModel):
    id: UUID
    title: str
    description: Optional[str]
    status: str
    created_by: Optional[UUID]
    created_at: datetime
    updated_at: datetime
    duration_seconds: int
    thumbnail_url: Optional[str]
    file_path: Optional[str]
    hls_path: Optional[str]
    hls_url: Optional[str] = None
    hls_available: bool = False  # Indicates if HLS playlist is ready for playback
    thumbnails_available: bool = False  # Indicates if thumbnail sprite is available
    dash_path: Optional[str]
    view_count: int
    is_public: bool
    stream_date: Optional[datetime] = None
    twitch_vod_id: Optional[str] = None
    streamer: Optional[str] = None
    stream_metadata: Optional[Dict[str, Any]] = None
    thumbnail_progress_generated: int = 0
    thumbnail_progress_total: int = 0
    thumbnail_progress_message: Optional[str] = None
    thumbnail_progress_error: Optional[str] = None
    thumbnail_progress_updated_at: Optional[datetime] = None
    stream_number: Optional[int] = None

    class Config:
        from_attributes = True