from fastapi import APIRouter
from fastapi import Depends
from fastapi import HTTPException
from fastapi import Path
from sqlalchemy.orm import Session

from onyx.auth.users import current_user
from onyx.db.chat import get_chat_session_by_id
from onyx.db.engine import get_session
from onyx.db.folder import add_chat_to_folder
from onyx.db.folder import create_folder
from onyx.db.folder import delete_folder
from onyx.db.folder import get_user_folders
from onyx.db.folder import remove_chat_from_folder
from onyx.db.folder import rename_folder
from onyx.db.folder import update_folder_display_priority
from onyx.db.models import User
from onyx.server.features.folder.models import DeleteFolderOptions
from onyx.server.features.folder.models import FolderChatSessionRequest
from onyx.server.features.folder.models import FolderCreationRequest
from onyx.server.features.folder.models import FolderResponse
from onyx.server.features.folder.models import FolderUpdateRequest
from onyx.server.features.folder.models import GetUserFoldersResponse
from onyx.server.models import DisplayPriorityRequest
from onyx.server.query_and_chat.models import ChatSessionDetails

router = APIRouter(prefix="/folder")


@router.get("")
def get_folders(
    user: User = Depends(current_user),
    db_session: Session = Depends(get_session),
) -> GetUserFoldersResponse:
    folders = get_user_folders(
        user_id=user.id if user else None,
        db_session=db_session,
    )
    folders.sort()
    return GetUserFoldersResponse(
        folders=[
            FolderResponse(
                folder_id=folder.id,
                folder_name=folder.name,
                display_priority=folder.display_priority,
                chat_sessions=[
                    ChatSessionDetails(
                        id=chat_session.id,
                        name=chat_session.description,
                        persona_id=chat_session.persona_id,
                        time_created=chat_session.time_created.isoformat(),
                        time_updated=chat_session.time_updated.isoformat(),
                        shared_status=chat_session.shared_status,
                        folder_id=folder.id,
                    )
                    for chat_session in folder.chat_sessions
                    if not chat_session.deleted
                ],
            )
            for folder in folders
        ]
    )


@router.put("/reorder")
def put_folder_display_priority(
    display_priority_request: DisplayPriorityRequest,
    user: User | None = Depends(current_user),
    db_session: Session = Depends(get_session),
) -> None:
    update_folder_display_priority(
        user_id=user.id if user else None,
        display_priority_map=display_priority_request.display_priority_map,
        db_session=db_session,
    )


@router.post("")
def create_folder_endpoint(
    request: FolderCreationRequest,
    user: User = Depends(current_user),
    db_session: Session = Depends(get_session),
) -> int:
    return create_folder(
        user_id=user.id if user else None,
        folder_name=request.folder_name,
        db_session=db_session,
    )


@router.patch("/{folder_id}")
def patch_folder_endpoint(
    request: FolderUpdateRequest,
    folder_id: int = Path(..., description="The ID of the folder to rename"),
    user: User = Depends(current_user),
    db_session: Session = Depends(get_session),
) -> None:
    try:
        rename_folder(
            user_id=user.id if user else None,
            folder_id=folder_id,
            folder_name=request.folder_name,
            db_session=db_session,
        )
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))


@router.delete("/{folder_id}")
def delete_folder_endpoint(
    request: DeleteFolderOptions,
    folder_id: int = Path(..., description="The ID of the folder to delete"),
    user: User = Depends(current_user),
    db_session: Session = Depends(get_session),
) -> None:
    user_id = user.id if user else None
    try:
        delete_folder(
            user_id=user_id,
            folder_id=folder_id,
            including_chats=request.including_chats,
            db_session=db_session,
        )
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))


@router.post("/{folder_id}/add-chat-session")
def add_chat_to_folder_endpoint(
    request: FolderChatSessionRequest,
    folder_id: int = Path(
        ..., description="The ID of the folder in which to add the chat session"
    ),
    user: User = Depends(current_user),
    db_session: Session = Depends(get_session),
) -> None:
    user_id = user.id if user else None
    try:
        chat_session = get_chat_session_by_id(
            chat_session_id=request.chat_session_id,
            user_id=user_id,
            db_session=db_session,
        )
        add_chat_to_folder(
            user_id=user.id if user else None,
            folder_id=folder_id,
            chat_session=chat_session,
            db_session=db_session,
        )
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))


@router.post("/{folder_id}/remove-chat-session/")
def remove_chat_from_folder_endpoint(
    request: FolderChatSessionRequest,
    folder_id: int = Path(
        ..., description="The ID of the folder from which to remove the chat session"
    ),
    user: User = Depends(current_user),
    db_session: Session = Depends(get_session),
) -> None:
    user_id = user.id if user else None
    try:
        chat_session = get_chat_session_by_id(
            chat_session_id=request.chat_session_id,
            user_id=user_id,
            db_session=db_session,
        )
        remove_chat_from_folder(
            user_id=user_id,
            folder_id=folder_id,
            chat_session=chat_session,
            db_session=db_session,
        )
    except Exception as e:
        raise HTTPException(status_code=400, detail=str(e))