from beanie import PydanticObjectId

from fastapi import APIRouter, HTTPException, Depends
from fastapi_filter import FilterDepends
from fastapi_pagination import Page, add_pagination
from fastapi_pagination.ext.motor import paginate

from hub.auth import get_current_user
from firm.core.models import CrudDocument
from firm.core.schemas import Writer, Reader
from firm.db import get_db_client



#instance: str="westside", firm: str="cht",
def get_tenant_db_cursor(db_client=Depends(get_db_client)):
    instance = "westside"
    firm = "cht"
    return db_client[f"tenant_{instance}_{firm}"]

#instance: str="westside", firm: str="cht",
def get_logged_tenant_db_cursor(db_client=Depends(get_db_client), user=Depends(get_current_user)):
    instance = "westside"
    firm = "cht"
    db_cursor = db_client[f"tenant_{instance}_{firm}"]
    db_cursor.user = user
    return db_cursor

def get_crud_router(model: CrudDocument, model_create: Writer, model_read: Reader, model_update: Writer, model_filter):
    model_name = model.__name__
    router = APIRouter()

    @router.get("/", response_model=Page[model_read], response_description=f"{model_name} records retrieved")
    async def read_list(filters: model_filter=FilterDepends(model_filter), db=Depends(get_logged_tenant_db_cursor)) -> Page[model_read]:
        return await paginate(**model.find(db, filters))

    @router.post("/", response_description=f"{model_name} added to the database")
    async def create(schema: model_create, db=Depends(get_logged_tenant_db_cursor)) -> model_read:
        await schema.validate_foreign_key(db)
        record = await model.create(db, schema)
        return model_read.validate_model(record)

    @router.get("/{record_id}", response_description=f"{model_name} record retrieved")
    async def read_one(record_id: PydanticObjectId, db=Depends(get_logged_tenant_db_cursor)) -> model_read:
        record = await model.get(db, record_id)
        if not record:
            raise HTTPException(
                status_code=404,
                detail=f"{model_name} record not found!"
            )

        return model_read.from_model(record)

    @router.put("/{record_id}", response_description=f"{model_name} record updated")
    async def update(record_id: PydanticObjectId, schema: model_update, db=Depends(get_logged_tenant_db_cursor)) -> model_read:
        record = await model.get(db, record_id)
        if not record:
            raise HTTPException(
                status_code=404,
                detail=f"{model_name} record not found!"
            )

        record = await model.update(db, record, schema)
        return model_read.from_model(record)

    @router.delete("/{record_id}", response_description=f"{model_name} record deleted from the database")
    async def delete(record_id: PydanticObjectId, db=Depends(get_logged_tenant_db_cursor)) -> dict:
        record = await model.get(db, record_id)
        if not record:
            raise HTTPException(
                status_code=404,
                detail=f"{model_name} record not found!"
            )

        await model.delete(db, record)
        return {
            "message": f"{model_name} deleted successfully"
        }

    add_pagination(router)
    return router