openproject/frontend/app/components/work-packages/work-package-cache.service.ts

// -- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License version 3.
//
// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
// Copyright (C) 2006-2013 Jean-Philippe Lang
// Copyright (C) 2010-2013 the ChiliProject Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
//
// See doc/COPYRIGHT.rdoc for more details.
// ++


import {openprojectModule} from "../../angular-modules";
import WorkPackage = op.WorkPackage;
import IScope = angular.IScope;

export class WorkPackageCacheService {

    private workPackageCache: {[id: number]: WorkPackage} = {};

    workPackagesSubject = new Rx.ReplaySubject<{[id: number]: WorkPackage}>(1);

    updateWorkPackageList(list: WorkPackage[]) {
        for (const wp of list) {
            this.workPackageCache[wp.id] = wp;
        }
        this.workPackagesSubject.onNext(this.workPackageCache);
    }

    loadWorkPackage(workPackageId: number): Rx.Observable<WorkPackage> {
        return this.workPackagesSubject
                .map(cache => cache[workPackageId])
                .filter(wp => wp !== undefined);
    }

}

openprojectModule.service('wpCacheService', WorkPackageCacheService);