import os
import tempfile
import uuid
import aioboto3
from starlette.applications import Starlette
from starlette.responses import JSONResponse
from starlette.routing import Route
from starlette.requests import Request
from auth import login_required
from logger import root_logger as logger

from settings import (
    PORT,
    STORJ_ACCESS_KEY,
    STORJ_SECRET_KEY,
    CDN_DOMAIN,
    STORJ_BUCKET_NAME,
    STORJ_END_POINT,
)

async def create_s3_client():
    return aioboto3.Session().create_client(
        "s3",
        aws_access_key_id=STORJ_ACCESS_KEY,
        aws_secret_access_key=STORJ_SECRET_KEY,
        endpoint_url=STORJ_END_POINT,
    )


@login_required
async def upload_handler(request: Request):
    logger.debug("Received upload request")
    form = await request.form()
    file = form.get("file")

    if file is None:
        logger.error("No file uploaded")
        return JSONResponse({"error": "No file uploaded"}, status_code=400)

    file_name, file_extension = os.path.splitext(file.filename)
    key = str(uuid.uuid4()) + file_extension
    logger.debug(f"Generated file key: {key}")

    async with create_s3_client() as s3:
        with tempfile.NamedTemporaryFile() as tmp_file:
            while True:
                chunk = await file.read(8192)
                if not chunk:
                    break
                tmp_file.write(chunk)
            tmp_file.flush()

            logger.debug("Starting file upload to S3")
            await s3.upload_file(
                Filename=tmp_file.name,
                Bucket=STORJ_BUCKET_NAME,
                Key=key,
                ExtraArgs={"ContentType": file.content_type},
            )
            logger.debug("File upload completed")

        url = f"http://{CDN_DOMAIN}/{key}"
        logger.info(f"File uploaded successfully: {url}")
        return JSONResponse({"url": url, "originalFilename": file.filename})


async def home(request: Request):
    logger.debug("Home route called")
    return JSONResponse({"message": "Hello World!"})


routes = [
    Route("/", home, methods=["GET"]),
    Route("/", upload_handler, methods=["POST"]),
]

app = Starlette(debug=True, routes=routes)