"""Lambda file_upload_initialize function module."""

from datetime import datetime

import sentry_sdk
from lambdacommon.common_config import logger
from pydantic import ValidationError
from sentry_sdk.integrations.aws_lambda import AwsLambdaIntegration

import config
from file_upload_initialize.processor import FileUploadInitializeProcessor
from file_upload_initialize.schemas import FileUploadEvent

if config.SENTRY_DSN:
    sentry_sdk.init(
        dsn=config.SENTRY_DSN,
        environment=config.ENVIRONMENT,
        integrations=[AwsLambdaIntegration(timeout_warning=True)],
    )


def handler(event: dict, context: object) -> dict:
    """Lambda entry point.

    Args:
        event (dict): Event data passed to the Lambda function
        context (object): Lambda runtime information

    Returns:
        dict: Response with status
    """
    try:
        # Validate event structure
        logger.info(f'Event: {event}')
        validated_event = FileUploadEvent(**event)

        # Process the event
        processor = FileUploadInitializeProcessor(validated_event)
        start_time = datetime.now()
        result = processor.process()
        end_time = datetime.now()

        # Log processing time
        diff = end_time - start_time
        logger.info(f'Finished processing in {diff}')
        # Return result
        return result.model_dump()

    except ValidationError as e:
        logger.error(f'Invalid event structure: {e.json()}')
        raise
    except Exception:
        logger.exception('Failed to process file upload')
        raise