Source code for luna_faces.app.handlers.attribute_handler

"""
Module realized a handler for requests related to a single temporary attributes.
"""
from sanic.response import HTTPResponse

from app.handlers.base_handler import AttributesBaseRequestHandler
from app.handlers.query_validators import attributeTargetsGetter, ttlGetter
from crutches_on_wheels.cow.errors.errors import Error
from crutches_on_wheels.cow.maps.vl_maps import TEMPORARY_ATTRIBUTE_TARGET_MAP
from crutches_on_wheels.cow.web.query_getters import boolFrom01Getter, uuidGetter

# Default temporary attributes targets
_DEFAULT_ATTRIBUTES_TARGETS = list(TEMPORARY_ATTRIBUTE_TARGET_MAP)


class AttributeHandler(AttributesBaseRequestHandler):
    """
    Handler for work with a single attributes.
    """

    async def head(self, attributeId: str) -> HTTPResponse:
        """
        Check temporary attribute. See `spec_check_attribute`_.

        .. _spec_check_attribute:
            _static/api.html#operation/checkAttribute

        Returns:
            response with status code 200 if attribute is exists otherwise status code 404
        """
        accountId = self.getQueryParam("account_id", uuidGetter)
        isAttributesExists = await self.attributesContext.check(accountId=accountId, attributeId=attributeId)

        if not isAttributesExists:
            return self.error(404, error=Error.AttributesNotFound.format(attributeId))
        return self.success(200, extraHeaders={"Content-Type": "application/json"})

    async def get(self, attributeId: str) -> HTTPResponse:
        """
        Get temporary attribute. See `spec_get_attribute`_.

        .. _spec_get_attribute:
            _static/api.html#operation/getAttribute

        Returns:
            response json with attribute
        """
        accountId = self.getQueryParam("account_id", uuidGetter)
        targets = self.getQueryParam(
            "targets",
            attributeTargetsGetter,
            default=_DEFAULT_ATTRIBUTES_TARGETS,
        )
        descriptorVersion = self.getQueryParam(
            "descriptor_version", int, default=self.config.defaultFaceDescriptorVersion
        )

        attribute = await self.attributesContext.get(attributeId=attributeId, accountId=accountId)

        return self.success(
            outputJson=self.makeOutputAttribute(attribute, targets=targets, descriptorVersion=descriptorVersion)
        )

    async def put(self, attributeId: str) -> HTTPResponse:
        """
        Put temporary attribute. See `spec_put_attribute`_.

        .. _spec_put_attribute:
            _static/api.html#operation/putAttribute

        Returns:
            response with status code 204
        """
        attribute = await self.getInputAttribute(attributeId)

        ttl = self.getQueryParam(
            "ttl",
            lambda value: ttlGetter(value, self.config.attributesStorageSettings.maxTTL),
            default=self.config.attributesStorageSettings.defaultTTL,
        )
        force = self.getQueryParam("force", boolFrom01Getter, default=False)
        await self.attributesContext.put(attribute, ttl, replace=force)
        self.respHeaders["Location"] = f"/{self.app.ctx.apiVersion}/attributes/{attribute.attributeId}"
        return self.success(204)

    async def delete(self, attributeId: str) -> HTTPResponse:
        """
        Delete temporary attribute. See `spec_delete_attribute`_.

        .. _spec_delete_attribute:
            _static/api.html#operation/deleteAttribute

        Returns:
            response with status code 204
        """
        accountId = self.getQueryParam("account_id", uuidGetter)
        await self.attributesContext.delete(attributeId, accountId=accountId)
        return self.success(204)