import sys
from typing import Annotated

from fastapi import APIRouter, Query, Depends
from sqlmodel import SQLModel, Field
from sqlmodel import select

import alchemy
import utils
from dependencies import get_session
from utils import update_item, create_item
from .status_model import Status
from .user import ACTIVE_USER

PRIMARY_ANNOTATION = utils.make_primary_annotation('Country')


# ----------------------------------------------------------------
# Models

class CountryBase(SQLModel):
    code: str = Field(max_length=2, unique=True)
    name: str = Field(max_length=80)
    notes: str | None


class Country(CountryBase):
    id: int | None = Field(default=None, primary_key=True)


class CountryCreate(CountryBase):
    notes: str | None = None


class CountryPublic(CountryBase):
    id: int
    status: Status


class CountryUpdate(CountryBase):
    code: str | None = None
    name: str | None = None
    notes: str | None = None


# ----------------------------------------------------------------
# Routes

router = APIRouter(prefix="/country", tags=["country"])


@router.get("/", response_model=list[CountryPublic])
async def get_countries(
        offset: int = 0,
        limit: Annotated[int, Query] = 100,
        session=Depends(get_session)):
    """Get list of all countries"""
    if limit < 1:
        limit = sys.maxsize
    return session.exec(select(alchemy.Country).offset(offset).limit(limit)).all()


@router.get("/{country_id}",
            response_model=CountryPublic,
            responses={404: {"description": "Not found"}})
async def get_country(
        country_id: PRIMARY_ANNOTATION,
        session=Depends(get_session)):
    return utils.get_single_record(session, alchemy.Country, country_id)


@router.post("/",
             response_model=CountryPublic)
async def create_country(
        country: CountryCreate,
        current_user: ACTIVE_USER,
        session=Depends(get_session)):
    return create_item(
        session=session,
        cls=alchemy.Country,
        current_user=current_user,
        data=Country.model_validate(country))


@router.patch("/{country_id}",
              response_model=CountryPublic,
              responses={404: {"description": "Not found"}})
async def update_country(
        country_id: PRIMARY_ANNOTATION,
        country: CountryUpdate,
        current_user: ACTIVE_USER,
        session=Depends(get_session)):
    return update_item(
        session=session,
        current_user=current_user,
        item=utils.get_single_record(session, alchemy.Country, country_id),
        data=country)


@router.put("/{country_id}/activate",
            response_model=CountryPublic,
              responses={404: {"description": "Not found"}})
async def activate_country(
        country_id: PRIMARY_ANNOTATION,
        current_user: ACTIVE_USER,
        session=Depends(get_session)):
    return utils.set_item_status(
        session=session,
        current_user=current_user,
        item=utils.get_single_record(session, alchemy.Country, country_id),
        status='A')


@router.put("/{country_id}/deactivate",
            response_model=CountryPublic,
              responses={404: {"description": "Not found"}})
async def deactivate_country(
        country_id: PRIMARY_ANNOTATION,
        current_user: ACTIVE_USER,
        session=Depends(get_session)):
    return utils.set_item_status(
        session=session,
        current_user=current_user,
        item=utils.get_single_record(session, alchemy.Country, country_id),
        status='I')