#  Copyright 2021-present, the Recognai S.L. team.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

from datetime import datetime
from typing import Any, Dict, List, Literal, Optional, Union
from uuid import UUID

from fastapi import Body

from argilla.server.models import ResponseStatus
from argilla.server.pydantic_v1 import BaseModel, Field

try:
    from typing import Annotated
except ImportError:
    from typing_extensions import Annotated

RESPONSES_BULK_CREATE_MIN_ITEMS = 1
RESPONSES_BULK_CREATE_MAX_ITEMS = 100


class ResponseValue(BaseModel):
    value: Any


class ResponseValueUpdate(BaseModel):
    value: Any


class Response(BaseModel):
    id: UUID
    values: Optional[Dict[str, ResponseValue]]
    status: ResponseStatus
    record_id: UUID
    user_id: UUID
    inserted_at: datetime
    updated_at: datetime

    class Config:
        orm_mode = True


class SubmittedResponseUpdate(BaseModel):
    values: Dict[str, ResponseValueUpdate]
    status: Literal[ResponseStatus.submitted]


class DiscardedResponseUpdate(BaseModel):
    values: Optional[Dict[str, ResponseValueUpdate]]
    status: Literal[ResponseStatus.discarded]


class DraftResponseUpdate(BaseModel):
    values: Optional[Dict[str, ResponseValueUpdate]]
    status: Literal[ResponseStatus.draft]


ResponseUpdate = Annotated[
    Union[SubmittedResponseUpdate, DiscardedResponseUpdate, DraftResponseUpdate],
    Body(..., discriminator="status"),
]


class SubmittedResponseUpsert(BaseModel):
    values: Dict[str, ResponseValueUpdate]
    status: Literal[ResponseStatus.submitted]
    record_id: UUID


class DiscardedResponseUpsert(BaseModel):
    values: Optional[Dict[str, ResponseValueUpdate]]
    status: Literal[ResponseStatus.discarded]
    record_id: UUID


class DraftResponseUpsert(BaseModel):
    values: Optional[Dict[str, ResponseValueUpdate]]
    status: Literal[ResponseStatus.draft]
    record_id: UUID


ResponseUpsert = Annotated[
    Union[SubmittedResponseUpsert, DiscardedResponseUpsert, DraftResponseUpsert],
    Body(..., discriminator="status"),
]


class ResponsesBulkCreate(BaseModel):
    items: List[ResponseUpsert] = Field(
        ...,
        min_items=RESPONSES_BULK_CREATE_MIN_ITEMS,
        max_items=RESPONSES_BULK_CREATE_MAX_ITEMS,
    )


class ResponseBulkError(BaseModel):
    detail: str


class ResponseBulk(BaseModel):
    item: Optional[Response]
    error: Optional[ResponseBulkError]


class ResponsesBulk(BaseModel):
    items: List[ResponseBulk]
