"""
Video Router - Whisk video generation
"""
from fastapi import APIRouter, HTTPException
from models.requests import VideoGenerateRequest
from models.responses import VideoResponse, ErrorResponse
from services.whisk_client import WhiskClient

router = APIRouter(tags=["Video"])


@router.post(
    "/video/generate",
    response_model=VideoResponse,
    responses={
        400: {"model": ErrorResponse},
        401: {"model": ErrorResponse},
        500: {"model": ErrorResponse}
    }
)
async def generate_video(request: VideoGenerateRequest):
    """
    Generate video from an image using Whisk Animate (Veo).
    
    - **prompt**: Motion description for the video
    - **imageBase64**: Base64 encoded source image (optional if imageGenerationId provided)
    - **imageGenerationId**: Existing Whisk image ID (optional if imageBase64 provided)
    - **cookies**: Whisk authentication cookies
    """
    if not request.cookies:
        raise HTTPException(status_code=401, detail="Whisk cookies not found. Please configure settings.")

    try:
        client = WhiskClient(request.cookies)

        print(f"[Video API] Generating video for prompt: \"{request.prompt[:50]}...\"")

        result = await client.generate_video(
            request.imageGenerationId or "",
            request.prompt,
            request.imageBase64
        )

        return VideoResponse(
            success=True,
            id=result.id,
            url=result.url,
            status=result.status
        )

    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except Exception as e:
        print(f"Video Generation API failed: {e}")
        raise HTTPException(status_code=500, detail=str(e))