/*
 * This file belongs to Hoist, an application development toolkit
 * developed by Extremely Heavy Industries (www.xh.io | info@xh.io)
 *
 * Copyright © 2026 Extremely Heavy Industries Inc.
 */

import {throwIf} from '@xh/hoist/utils/js';
import {PersistenceProvider, PersistenceProviderConfig} from '../PersistenceProvider';
import type {ViewManagerModel} from '@xh/hoist/cmp/viewmanager/ViewManagerModel';

/**
 * PersistenceProvider that delegates state storage to a ViewManagerModel, enabling components
 * to persist their state as part of user-managed named views.
 *
 * @see ViewManagerModel
 * @see PersistenceProvider
 */
export class ViewManagerProvider<S> extends PersistenceProvider<S> {
    readonly viewManagerModel: ViewManagerModel;

    constructor(cfg: PersistenceProviderConfig<S>) {
        super(cfg);
        const {viewManagerModel} = cfg.persistOptions;
        throwIf(!viewManagerModel, `ViewManagerProvider requires a 'viewManagerModel'.`);
        this.viewManagerModel = viewManagerModel;
        viewManagerModel.registerProvider(this);
    }

    //----------------
    // Implementation
    //----------------
    override readRaw() {
        return this.viewManagerModel.getValue();
    }

    override writeRaw(data: Record<typeof this.path, S>) {
        this.viewManagerModel.setValue(data);
    }

    override destroy() {
        this.viewManagerModel?.unregisterProvider(this);
        super.destroy();
    }
}