import io

from flask import Response
from helpers import S3_BUCKET, get_secret, s3_client
from PIL import Image


# Create&Update function to upload or update user avatar S3/Minio
def update_or_create_avatar(user_id: str, file):
    try:
        file_data = file.read()
        # Bản chất là đường dẫn trong bucket + tên file = user_id
        object_name = f"{get_secret('S3_PREFIX')}/{user_id}"
        result = s3_client.put_object(
            Bucket=S3_BUCKET,
            Key=object_name,
            Body=io.BytesIO(file_data),
            ContentLength=len(file_data),
            ContentType=file.content_type,
        )

        return result, 200

    except Exception as e:
        return {"error": str(e)}, 500


def get_avatar_url(user_id: str):  # Read function to get user avatar from S3/Minio
    try:
        response = s3_client.get_object(
            Bucket=S3_BUCKET,
            Key=f"{get_secret('S3_PREFIX')}/{user_id}"
        )
        # image_data = response["body"].read(content_type)
        image_data = response['Body'].read()

        with Image.open(io.BytesIO(image_data)) as img:
            fmt = img.format.lower()  # ví dụ: 'jpeg', 'png', 'webp'
            content_type = f"image/{'jpeg' if fmt == 'jpg' else fmt}"
        # return Response(
        #     io.BytesIO(image_data),
        #     content_type=content_type,
        #     direct_passthrough=True,
        # )

        return Response(
            image_data,
            content_type=content_type,
            direct_passthrough=True
        ), 200

    except Exception as e:
        return {"error": str(e)}, 500


# Delete Function to delete user avatar from S3/Minio
def delete_avatar(user_id: str) -> dict:
    try:
        result = s3_client.delete_object(
            Bucket=S3_BUCKET,
            Key=f"{get_secret('S3_PREFIX')}/{user_id}"
        )
        return result, 200
    except Exception as e:
        return {"error": str(e)}, 500