/**
 * Copyright 2023-present DreamNum Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import type { Nullable } from '@univerjs/core';
import { Disposable, Inject } from '@univerjs/core';
import { ISidebarService } from '@univerjs/ui';
import { BehaviorSubject } from 'rxjs';

export type ActiveCommentInfo = Nullable<{ unitId: string; subUnitId: string; commentId: string; trigger?: string }>;

export class ThreadCommentPanelService extends Disposable {
    private _panelVisible = false;
    private _panelVisible$ = new BehaviorSubject<boolean>(false);

    private _activeCommentId: ActiveCommentInfo;
    private _activeCommentId$ = new BehaviorSubject<ActiveCommentInfo>(undefined);

    private _hoveredCommentId: ActiveCommentInfo;
    private _hoveredCommentId$ = new BehaviorSubject<ActiveCommentInfo>(undefined);

    panelVisible$ = this._panelVisible$.asObservable();
    activeCommentId$ = this._activeCommentId$.asObservable();
    hoveredCommentId$ = this._hoveredCommentId$.asObservable();

    constructor(
        @Inject(ISidebarService) private readonly _sidebarService: ISidebarService
    ) {
        super();
        this._init();

        this.disposeWithMe(() => {
            this._activeCommentId$.complete();
            this._hoveredCommentId$.complete();
            this._panelVisible$.complete();
        });
    }

    private _init() {
        this.disposeWithMe(
            this._sidebarService.sidebarOptions$.subscribe((opt) => {
                if (!opt.visible) {
                    this.setPanelVisible(false);
                }
            })
        );
    }

    get panelVisible() {
        return this._panelVisible;
    }

    get activeCommentId() {
        return this._activeCommentId;
    }

    get hoveredCommentId() {
        return this._hoveredCommentId;
    }

    setPanelVisible(visible: boolean) {
        this._panelVisible = visible;
        this._panelVisible$.next(visible);
        if (!visible) {
            this.setHoveredComment(undefined);
        }
    }

    setActiveComment(commentInfo: ActiveCommentInfo) {
        this._activeCommentId = commentInfo;
        this._activeCommentId$.next(commentInfo);
    }

    setHoveredComment(commentInfo: ActiveCommentInfo) {
        this._hoveredCommentId = commentInfo;
        this._hoveredCommentId$.next(commentInfo);
    }
}