from fastapi import APIRouter, HTTPException, Request
from fastapi.responses import StreamingResponse
from service import TxtImgService
from utils import jingrow_api_verify_and_billing
from settings import settings
import json
import asyncio

router = APIRouter(prefix=settings.router_prefix)
service = TxtImgService()

@router.post(settings.generate_route)
@jingrow_api_verify_and_billing(api_name=settings.api_name)
async def generate_image(data: dict, request: Request):
    """
    根据文本提示生成图像
    
    Args:
        data: 包含文本提示和配置参数的字典
        request: FastAPI 请求对象
        
    Returns:
        生成的图像内容
    """
    if "prompt" not in data:
        raise HTTPException(status_code=400, detail="缺少prompt参数")
    
    config = data.get("config", {})
    result = await service.generate_image(data["prompt"], config)
    return result

@router.post(settings.batch_route)
@jingrow_api_verify_and_billing(api_name=settings.api_name)
async def generate_image_batch(data: dict, request: Request):
    """
    批量处理多个文本提示
    
    Args:
        data: 包含文本提示列表和配置参数的字典
        request: FastAPI 请求对象
        
    Returns:
        流式响应，包含每个提示的处理结果
    """
    if "prompts" not in data:
        raise HTTPException(status_code=400, detail="缺少prompts参数")
    
    config = data.get("config", {})
    
    async def process_and_stream():
        async for result in service.process_batch(data["prompts"], config):
            yield json.dumps(result) + "\n"
    
    return StreamingResponse(
        process_and_stream(),
        media_type="application/x-ndjson"
    )