from typing import Any

from fastapi import APIRouter, HTTPException, status
from sqlmodel import func, select

from app.api.deps import CurrentUser, SessionDep
from app.models.base import (
    ApiTags,
    Message,
    RowId,
)
from app.models.hike import (
    Hike,
    HikeCreate,
    HikeUpdate,
    HikePublic,
    HikesPublic,
)
from app.models.user import (
    PermissionModule,
    PermissionPart,
    PermissionRight,
)

router = APIRouter(prefix="/hikes", tags=[ApiTags.HIKES])


# region # Hikes ########################################################

@router.get("/", response_model=HikesPublic)
def read_hikes(
    session: SessionDep, current_user: CurrentUser, skip: int = 0, limit: int = 100
) -> Any:
    """
    Retrieve all hikes.
    """

    if current_user.has_permissions(
        module=PermissionModule.HIKE,
        part=PermissionPart.ADMIN,
        rights=PermissionRight.READ,
    ):
        count_statement = select(func.count()).select_from(Hike)
        count = session.exec(count_statement).one()
        statement = select(Hike).offset(skip).limit(limit)
        hikes = session.exec(statement).all()
        return HikesPublic(data=hikes, count=count)

    return HikesPublic(data=[], count=0)


@router.get("/{id}", response_model=HikePublic)
def read_hike(session: SessionDep, current_user: CurrentUser, id: RowId) -> Any:
    """
    Get hike by ID.
    """
    hike = session.get(Hike, id)
    if not hike:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Hike not found")

    if not current_user.has_permissions(
        module=PermissionModule.HIKE,
        part=PermissionPart.ADMIN,
        rights=PermissionRight.READ,
    ):
        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not enough permissions")

    return hike


@router.post("/", response_model=HikePublic)
def create_hike(
    *, session: SessionDep, current_user: CurrentUser, hike_in: HikeCreate
) -> Any:
    """
    Create new hike.
    """

    if not current_user.has_permissions(
        module=PermissionModule.HIKE,
        part=PermissionPart.ADMIN,
        rights=PermissionRight.CREATE,
    ):
        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not enough permissions")

    hike = Hike.create(create_obj=hike_in, session=session)
    return hike


@router.put("/{id}", response_model=HikePublic)
def update_hike(
    *, session: SessionDep, current_user: CurrentUser, id: RowId, hike_in: HikeUpdate
) -> Any:
    """
    Update a hike.
    """
    hike = session.get(Hike, id)
    if not hike:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Hike not found")

    if not current_user.has_permissions(
        module=PermissionModule.HIKE,
        part=PermissionPart.ADMIN,
        rights=PermissionRight.UPDATE,
    ):
        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not enough permissions")

    hike = Hike.update(db_obj=hike, in_obj=hike_in, session=session)
    return hike


@router.delete("/{id}")
def delete_hike(session: SessionDep,current_user: CurrentUser, id: RowId) -> Message:
    """
    Delete a hike.
    """
    hike = session.get(Hike, id)
    if not hike:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Hike not found")

    if not current_user.has_permissions(
        module=PermissionModule.HIKE,
        part=PermissionPart.ADMIN,
        rights=PermissionRight.DELETE,
    ):
        raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="Not enough permissions")

    session.delete(hike)
    session.commit()
    return Message(message="Hike deleted successfully")

# endregion