from flask import current_app as app
from marshmallow import Schema as MarshmallowSchema, ValidationError, validates_schema
from marshmallow.fields import Boolean, DateTime, Integer, Nested, String, UUID
from marshmallow.validate import Length
from sqlalchemy.util import OrderedSet
from teal.marshmallow import SanitizedStr, URL
from teal.resource import Schema

from ereuse_devicehub.marshmallow import NestedOn
from ereuse_devicehub.resources.proof import models as m
from ereuse_devicehub.resources.models import STR_BIG_SIZE, STR_SIZE
from ereuse_devicehub.resources.schemas import Thing
from ereuse_devicehub.resources.action import schemas as s_action
from ereuse_devicehub.resources.device import schemas as s_device


class Proof(Thing):
    __doc__ = m.Proof.__doc__
    id = UUID(dump_only=True)
    ethereum_hash = SanitizedStr(default='', validate=Length(max=STR_BIG_SIZE),
                                   data_key="ethereumHash", required=True)
    url = URL(dump_only=True, description=m.Proof.url.__doc__)
    devices = NestedOn(s_device.Device,
                       many=True,
                       required=True,  # todo test ensuring len(devices) >= 1
                       only_query='id',
                       data_key='deviceIDs',
                       collection_class=OrderedSet)


class ProofTransfer(Proof):
    __doc__ = m.ProofTransfer.__doc__
    transfer = NestedOn(s_action.DisposeProduct,
                        required=True,
                        data_key='transferID',
                        only_query='id')


class ProofDataWipe(Proof):
    __doc__ = m.ProofDataWipe.__doc__
    erasure_type = SanitizedStr(default='', data_key='erasureType')
    date = DateTime('iso', required=True)
    result = Boolean(required=True)
    erasure = NestedOn(s_action.EraseBasic, only_query='id', data_key='erasureID')


class ProofFunction(Proof):
    __doc__ = m.ProofFunction.__doc__
    disk_usage = Integer(data_key='diskUsage')
    rate = NestedOn(s_action.Rate, required=True,
                    only_query='id', data_key='rateID')


class ProofReuse(Proof):
    __doc__ = m.ProofReuse.__doc__
    price = Integer()


class ProofRecycling(Proof):
    __doc__ = m.ProofRecycling.__doc__
    collection_point = SanitizedStr(default='', data_key='collectionPoint', required=True)
    date = DateTime('iso', required=True)
    contact = SanitizedStr(default='', required=True)
    ticket = SanitizedStr(default='', required=True)
    gps_location = SanitizedStr(default='', data_key='gpsLocation', required=True)
    recycler_code = SanitizedStr(default='', data_key='recyclerCode', required=True)