from typing import TYPE_CHECKING, TypedDict

from aws_lambda_powertools import Logger
from layercake.dateutils import now
from layercake.dynamodb import DynamoDBPersistenceLayer
from layercake.email_ import Message
from layercake.strutils import first_word, truncate_str

logger = Logger(__name__)

if TYPE_CHECKING:
    from mypy_boto3_sesv2 import SESV2Client
else:
    SESV2Client = object

Event = TypedDict('Event', {'id': str, 'sk': str})


def send_email(
    to: tuple[str, str],
    subject: str,
    message: str,
    context: dict = {},
    *,
    sender: tuple[str, str],
    event: Event,
    sesv2_client: SESV2Client,
    dynamodb_persistence_layer: DynamoDBPersistenceLayer,
) -> bool:
    now_ = now()
    name, _ = to
    emailmsg = Message(
        from_=sender,
        to=to,
        subject=subject.format(
            course=truncate_str(context['course']),
        ),
    )
    emailmsg.add_alternative(
        message.format(
            first_name=first_word(name),
            course=context['course'],
        )
    )

    try:
        sesv2_client.send_email(
            Content={
                'Raw': {
                    'Data': emailmsg.as_bytes(),
                },
            }
        )
        dynamodb_persistence_layer.put_item(
            item={
                'id': event['id'],
                'sk': f'{event["sk"]}#EXECUTED',
                'created_at': now_,
            }
        )
        logger.info('Email sent')
    except Exception as exc:
        logger.exception(exc)

        dynamodb_persistence_layer.put_item(
            item={
                'id': event['id'],
                'sk': f'{event["sk"]}#FAILED',
                'created_at': now_,
            }
        )

        return False
    else:
        return True