from fastapi import APIRouter, Depends, HTTPException, status, Response
from fastapi.responses import JSONResponse
from datetime import datetime
from ..dependencies import users_token, permissions_checker, database
from ..models import events, users
from pydantic import EmailStr
from typing import Annotated
from bson import ObjectId
router = APIRouter()



@router.get("/events", tags=["events"], response_model=list[events.EventOut])
async def read_events(authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin", "User"]))], skip: int = 0, limit: int = 20, id_event: str | None = None, name: str | None = None, status: int | None = None):
    if limit < 1 or skip < 0 or limit < skip:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="skip should be greater than 0 and limit should be greater than 1. Limit should be greater than skip"
        )
    limit = limit + skip
    listEvents = []
    event_repository = events.EventRepository(database=database.database)
    object_search = {}
    if status is not None:
        object_search = {"status":{"$eq": status}}
    if id_event is not None:
        eventid = ObjectId(id_event)
        object_search = {"id": {"$regex": userid}}
        if status is not None:
           object_search = {"$and":[{"id":{"$regex": eventid}}, {"status":{"$eq":status}}]}
    if name is not None:
        object_search = {"name": {"$regex": name}}
        if status is not None:
           object_search = {"$and":[{"name":{"$regex": name}}, {"status":{"$eq":status}}]}


    for event_index in event_repository.find_by(object_search, limit=limit, skip=skip):
        event = events.EventOut(id=event_index.id, name=event_index.name, place=event_index.place, status=event_index.status, start_date=event_index.start_date, end_date=event_index.end_date)
        listEvents.append(event)
    return listEvents


@router.get("/events/me",tags=["events"])
async def read_users_me(current_user: Annotated[users.User, Depends(users_token.get_current_active_user)], authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin", "User"]))]):
    event_repository = events.EventRepository(database=database.database)
    listOrganizers = []
    listParticipants = []
    listInterested = []

    for event_index in event_repository.find_by({"organizers":{"$eq": current_user.id}}, limit=limit, skip=skip):
        event = events.EventOut(id=event_index.id, name=event_index.name, place=event_index.place, status=event_index.status, start_date=event_index.start_date, end_date=event_index.end_date)
        listOrganizers.append(event)
    
    for event_index in event_repository.find_by({"participants":{"$eq": current_user.id}}, limit=limit, skip=skip):
        event = events.EventOut(id=event_index.id, name=event_index.name, place=event_index.place, status=event_index.status, start_date=event_index.start_date, end_date=event_index.end_date)
        listParticipants.append(event)

    for event_index in event_repository.find_by({"interested":{"$eq": current_user.id}}, limit=limit, skip=skip):
        event = events.EventOut(id=event_index.id, name=event_index.name, place=event_index.place, status=event_index.status, start_date=event_index.start_date, end_date=event_index.end_date)
        listInterested.append(event)

    content = {"participants":listParticipants, "organizers":listOrganizers, "interested":listInterested}
    response = JSONResponse(content=content)
    return response

@router.get("/events/count", tags=["events"])
async def read_events_count(authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin", "User"]))]):
    count = database.database.get_collection("events").estimated_document_count()
    content = {"count":count}
    response = JSONResponse(content=content)
    return response


@router.get("/events/{item_id}", tags=["events"], response_model=events.Event)
async def read_events_id(item_id : str, authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin"]))]):
    event_repository = event.EventRepository(database=database.database)
    event = event_repository.find_one_by_id(ObjectId(item_id))
    return event


@router.delete("/events/me/{item_id}", tags=["events"])
async def delete_event_me(item_id: str, current_user: Annotated[users.User, Depends(users_token.get_current_active_user)], authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin", "User"]))], remove: bool = False):
    event_repository = event.EventRepository(database=database.database)
    event = event_repository.find_one_by_id(ObjectId(item_id))
    if remove is True:
        event.deleted_at = datetime.today()
        event.status = -1
        content = {"message": "event is deleted"}
    else:
        event.status = 0
        event.deleted_at = datetime.today()
        content = {"message": "event is disabled"}
    event_repository.save(event)
    response = JSONResponse(content=content)
    return response

@router.delete("/events/groups",tags=["events"])
async def delete_events_groups(authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin"]))], remove: bool = False, eventids: events.EventIDS | None = None):
    if len(eventids.ids) == 0:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="eventids should be greater than 0"
        )
    
    event_repository = event.EventRepository(database=database.database)
    for i in eventids.ids:
        event = event_repository.find_one_by_id(ObjectId(i))
        if remove is True:
            event.status = -1
            event.deleted_at = datetime.today()
            content = {"message": "events are deleted "}
        else:
            event.status = 0
            event.disabled_at = datetime.today()
            content = {"message": "events are disabled"}
        event_repository.save(event)
    
    response = JSONResponse(content=content)
    return response

@router.delete("/events/{item_id}", tags=["events"])
async def delete_events_id(item_id : str, authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin"]))], remove : bool = False):
    event_repository = event.EventRepository(database=database.database)
    event = event_repository.find_one_by_id(ObjectId(item_id))
    if remove is True:
        event.status = -1
        event.deleted_at = datetime.today()
        content = {"message": "events are deleted"}
    else:
        event.status = 0
        event.disabled_at = datetime.today()
        content = {"message": "events are disabled"}
    event.save(user)
    response = JSONResponse(content=content)  
    return response

@router.put("/events/me/{item_id}",tags=["events"])
async def update_events_me(item_id: str, current_user: Annotated[users.User, Depends(users_token.get_current_active_user)], authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin", "User"]))], eventSingle: events.EventIn | None = None):
    event_repository = event.EventRepository(database=database.database)
    event = event_repository.find_one_by_id(ObjectId(item_id))
    event.name = EventSingle.name
    event.place = EventSingle.place
    event.start_date = eventSingle.start_date
    event.end_date = eventSingle.end_date
    event.updated_at = datetime.today()
    event_repository.save(event)
    content = {"message": "event is updated"}
    response = JSONResponse(content=content)  
    return response

@router.put("/events", tags=["events"], status_code=status.HTTP_201_CREATED)
async def update_events(authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin"]))], eventSingle: events.EventIn | None = None):
    if eventSingle is None:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="Body request is empty"
        )
    event_repository = event.EventRepository(database=database.database)

    event = event_repository.find_one_by({"name": {'$eq': eventSingle.name}})
    if event is not None:
        raise HTTPException(
            status_code=status.HTTP_204_NO_CONTENT,
            detail="name"
        )
        

    event = events.Event(name=eventSingle.name,  place=eventSigle.place)
    event.start_date = eventSingle.start_date
    event.end_date = eventSingle.end_date
    event.created_at = datetime.today()
    event_repository.save(event)
    content = {"message": "event is created"}
    response = JSONResponse(content=content, status_code=status.HTTP_201_CREATED)  
    return response


@router.put("/events/{item_id}", tags=["events"], status_code=status.HTTP_200_OK)
async def update_events_id(item_id: str, authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin"]))], eventSingle: events.EventIn | None = None, response: Response = Response):
    if eventSingle is None:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="Body request is empty"
        )
    event_repository = users.EventRepository(database=database.database)

    event = event_repository.find_one_by({"id": {'$eq': ObjectId(item_id)}})
    if event is None:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Event not found"
        )
        
    event.name = EventSingle.name
    event.place = EventSingle.place
    event.start_date = eventSingle.start_date
    event.end_date = eventSingle.end_date
    event.updated_at = datetime.today()
    event_repository.save(event)
    content = {"message": "event is updated"}
    response = JSONResponse(content=content)  
    return response


@router.patch("/events/groups",tags=["events"])
async def patch_events_groups(authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin"]))], eventids: events.EventIDS | None = None):
    if len(eventids.ids) == 0:
        raise HTTPException(
            status_code=status.HTTP_400_BAD_REQUEST,
            detail="eventids should be greater than 0"
        )
    
    event_repository = users.EventRepository(database=database.database)
    content = {"message": "events are enabled"}
    for i in eventids.ids:
        event = event_repository.find_one_by_id(ObjectId(i))
        event.status = 1
        event.disabled_at = None
        event.deleted_at = None
        event_repository.save(event)
    
    
    response = JSONResponse(content=content)
    return response

@router.patch("/events/{item_id}", tags=["users"])
async def patch_events_id(item_id : str, authorize: Annotated[bool, Depends(permissions_checker.PermissionChecker(roles=["Admin"]))]):
    event_repository = events.EventRepository(database=database.database)
    event = event_repository.find_one_by_id(ObjectId(item_id))
    event.status = 1
    event.disabled_at = None
    event.deleted_at = None
    event_repository.save(event)
    content = {"message": "event is enabled"}
    response = JSONResponse(content=content)  
    return response