fossasia/open-event-orga-server

from flask_rest_jsonapi import ResourceDetail, ResourceList, ResourceRelationship
from flask_rest_jsonapi.exceptions import ObjectNotFound
from sqlalchemy.orm.exc import NoResultFound

from app.api.bootstrap import api
from app.api.helpers.errors import ConflictError, ForbiddenError
from app.api.helpers.permission_manager import has_access
from app.api.helpers.utilities import require_relationship
from app.api.schema.speakers_calls import SpeakersCallSchema
from app.models import db
from app.models.event import Event
from app.models.speakers_call import SpeakersCall


class SpeakersCallList(ResourceList):
    """
    create Speakers Call
    """

    def before_post(self, args, kwargs, data):
        """
        before post method to check for required relationship and proper permission
        :param args:
        :param kwargs:
        :param data:
        :return:
        """
        require_relationship(['event'], data)
        if not has_access('is_coorganizer', event_id=data['event']):
            raise ForbiddenError({'source': ''}, 'Co-organizer access is required.')

    def before_create_object(self, data, view_kwargs):
        """
        method to check if speaker calls object already exists for an event
        :param data:
        :param view_kwargs:
        :return:
        """
        try:
            speakers_call = (
                self.session.query(SpeakersCall)
                .filter_by(event_id=data['event'], deleted_at=None)
                .one()
            )
            event = speakers_call.event
            if (
                speakers_call.starts_at > event.starts_at
                or speakers_call.ends_at > event.starts_at
            ):
                raise ForbiddenError(
                    {'source': ''},
                    "Speakers call date can\'t be after the event start date",
                )
        except NoResultFound:
            pass
        else:
            raise ConflictError(
                {'pointer': '/data/relationships/event'},
                "Speakers Call already exists for this event",
            )

    schema = SpeakersCallSchema
    methods = [
        'POST',
    ]
    data_layer = {
        'session': db.session,
        'model': SpeakersCall,
        'methods': {'before_create_object': before_create_object},
    }


class SpeakersCallDetail(ResourceDetail):
    """
    speakers call detail by id
    """

    def before_patch(self, args, kwargs, data):
        """
        before patch method to check for existing speakers-call
        :param args:
        :param kwargs:
        :param data:
        :return:
        """
        if kwargs.get('event_id'):
            try:
                speakers_call = SpeakersCall.query.filter_by(
                    event_id=kwargs['event_id']
                ).one()
                event = speakers_call.event
                if (
                    speakers_call.starts_at > event.starts_at
                    or speakers_call.ends_at > event.starts_at
                ):
                    raise ForbiddenError(
                        {'source': ''},
                        "Speakers call date can\'t be after the event start date",
                    )
            except NoResultFound:
                raise ObjectNotFound({'source': ''}, "Object: not found")
            kwargs['id'] = speakers_call.id

    def before_get_object(self, view_kwargs):
        """
        before get method to get the resource id for fetching details
        :param view_kwargs:
        :return:
        """
        if view_kwargs.get('event_identifier'):
            try:
                event = (
                    self.session.query(Event)
                    .filter_by(identifier=view_kwargs['event_identifier'])
                    .one()
                )
            except NoResultFound:
                raise ObjectNotFound(
                    {'parameter': 'event_identifier'},
                    "Event: {} not found".format(view_kwargs['event_identifier']),
                )
            else:
                view_kwargs['event_id'] = event.id

        if view_kwargs.get('event_id'):
            try:
                speakers_call = (
                    self.session.query(SpeakersCall)
                    .filter_by(event_id=view_kwargs['event_id'])
                    .one()
                )
            except NoResultFound:
                raise ObjectNotFound(
                    {'parameter': 'event_identifier'}, "Object: not found"
                )
            view_kwargs['id'] = speakers_call.id

    decorators = (
        api.has_permission(
            'is_coorganizer',
            fetch="event_id",
            model=SpeakersCall,
            methods="PATCH,DELETE",
        ),
    )
    schema = SpeakersCallSchema
    data_layer = {
        'session': db.session,
        'model': SpeakersCall,
        'methods': {'before_get_object': before_get_object},
    }


class SpeakersCallRelationship(ResourceRelationship):
    """
    speakers call Relationship
    """

    decorators = (
        api.has_permission(
            'is_coorganizer',
            fetch="event_id",
            model=SpeakersCall,
            methods="PATCH,DELETE",
        ),
    )
    schema = SpeakersCallSchema
    methods = ['GET', 'PATCH']
    data_layer = {'session': db.session, 'model': SpeakersCall}