from http import HTTPStatus

from aws_lambda_powertools.event_handler.api_gateway import Router
from aws_lambda_powertools.event_handler.exceptions import (
    BadRequestError as PowertoolsBadRequestError,
)
from layercake.dynamodb import (
    DynamoDBPersistenceLayer,
    KeyPair,
    MissingError,
    PrefixKey,
)
from pydantic import BaseModel, EmailStr

from api_gateway import JSONResponse
from boto3clients import dynamodb_client
from config import USER_TABLE
from middlewares import AuditLogMiddleware
from rules.user import add_email, del_email, set_email_as_primary


class BadRequestError(MissingError, PowertoolsBadRequestError): ...


router = Router()
user_layer = DynamoDBPersistenceLayer(USER_TABLE, dynamodb_client)


@router.get(
    '/<id>/emails',
    compress=True,
    tags=['User'],
    summary='Get user emails',
)
def get_emails(id: str):
    start_key = router.current_event.get_query_string_value('start_key', None)

    return user_layer.collection.query(
        KeyPair(id, PrefixKey('emails')),
        start_key=start_key,
    )


class Email(BaseModel):
    email: EmailStr


@router.post(
    '/<id>/emails',
    compress=True,
    tags=['User'],
    summary='Add user email',
    middlewares=[AuditLogMiddleware('EMAIL_ADD', user_layer.collection, ('email',))],
)
def post_email(id: str, payload: Email):
    add_email(id, payload.email, persistence_layer=user_layer)

    return JSONResponse(
        body=payload,
        status_code=HTTPStatus.CREATED,
    )


class EmailAsPrimary(BaseModel):
    new_email: EmailStr
    old_email: EmailStr
    email_verified: bool = False


@router.patch(
    '/<id>/emails',
    compress=True,
    tags=['User'],
    summary='Add user email as primary',
    middlewares=[
        AuditLogMiddleware(
            'EMAIL_CHANGE',
            user_layer.collection,
            (
                'new_email',
                'old_email',
            ),
        )
    ],
)
def patch_email(id: str, payload: EmailAsPrimary):
    set_email_as_primary(
        id,
        payload.new_email,
        payload.old_email,
        email_verified=payload.email_verified,
        persistence_layer=user_layer,
    )

    return JSONResponse(
        body=payload,
        status_code=HTTPStatus.OK,
    )


@router.delete(
    '/<id>/emails',
    compress=True,
    tags=['User'],
    summary='Delete user email',
    middlewares=[AuditLogMiddleware('EMAIL_DEL', user_layer.collection, ('email',))],
)
def delete_email(id: str, payload: Email):
    del_email(
        id,
        payload.email,
        persistence_layer=user_layer,
    )
    return payload