// (C) Copyright 2015 Moodle Pty 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 { Directive, Input, ElementRef, Optional } from '@angular/core';
import { NavController } from 'ionic-angular';
import { TranslateService } from '@ngx-translate/core';
import { CoreDomUtilsProvider } from '@providers/utils/dom';
import { CoreUtilsProvider } from '@providers/utils/utils';
import { CoreSitePluginsProvider } from '../providers/siteplugins';
import { CoreSitePluginsCallWSOnClickBaseDirective } from '../classes/call-ws-click-directive';
import { CoreSitePluginsPluginContentComponent } from '../components/plugin-content/plugin-content';

/**
 * Directive to call a WS when the element is clicked and load a new content passing the WS result as args. This new content
 * can be displayed in a new page or in the same page (only if current page is already displaying a site plugin content).
 *
 * If you don't need to load some new content when done, @see CoreSitePluginsCallWSDirective.
 *
 * @see CoreSitePluginsCallWSOnClickBaseDirective.
 *
 * Example usages:
 *
 * A button to get some data from the server without using cache, showing default confirm and displaying a new page:
 *
 * <button ion-button core-site-plugins-call-ws-new-content name="mod_certificate_get_issued_certificates"
 *             [params]="{certificateid: <% certificate.id %>}" [preSets]="{getFromCache: 0, saveToCache: 0}" confirmMessage
 *             title="<% certificate.name %>" component="mod_certificate" method="mobile_issues_view"
 *             [args]="{cmid: <% cmid %>, courseid: <% courseid %>}">
 *     {{ 'plugin.mod_certificate_coursecertificate.getissued' | translate }}
 * </button>
 *
 * A button to get some data from the server using cache, without confirm, displaying new content in same page and using
 * userid from otherdata:
 *
 * <button ion-button core-site-plugins-call-ws-new-content name="mod_certificate_get_issued_certificates"
 *             [params]="{certificateid: <% certificate.id %>}" component="mod_certificate" method="mobile_issues_view"
 *             [args]="{cmid: <% cmid %>, courseid: <% courseid %>}" samePage="true" [useOtherData]="['userid']">
 *     {{ 'plugin.mod_certificate_coursecertificate.getissued' | translate }}
 * </button>
 */
@Directive({
    selector: '[core-site-plugins-call-ws-new-content]'
})
export class CoreSitePluginsCallWSNewContentDirective extends CoreSitePluginsCallWSOnClickBaseDirective {
    @Input() component: string; // The component of the new content. If not provided, use the same component as current page.
    @Input() method: string; // The method to get the new content. If not provided, use the same method as current page.
    @Input() args: any; // The params to get the new content.
    @Input() title: string; // The title to display with the new content. Only if samePage=false.
    @Input() samePage: boolean | string; // Whether to display the content in same page or open a new one. Defaults to new page.
    @Input() useOtherData: any[]; // Whether to include other data in the args. @see CoreSitePluginsProvider.loadOtherDataInArgs.
    @Input() jsData: any; // JS variables to pass to the new page so they can be used in the template or JS.
                          // If true is supplied instead of an object, all initial variables from current page will be copied.
    @Input() newContentPreSets: any; // The preSets for the WS call of the new content.

    constructor(element: ElementRef, translate: TranslateService, domUtils: CoreDomUtilsProvider,
            sitePluginsProvider: CoreSitePluginsProvider, @Optional() parentContent: CoreSitePluginsPluginContentComponent,
            utils: CoreUtilsProvider, @Optional() protected navCtrl: NavController) {
        super(element, translate, domUtils, sitePluginsProvider, parentContent, utils);
    }

    /**
     * Function called when the WS call is successful.
     *
     * @param result Result of the WS call.
     */
    protected wsCallSuccess(result: any): void {
        let args = this.args || {};

        if (this.parentContent) {
            args = this.sitePluginsProvider.loadOtherDataInArgs(this.args, this.parentContent.otherData, this.useOtherData);
        }

        // Add the properties from the WS call result to the args.
        args = Object.assign(args, result);

        if (this.utils.isTrueOrOne(this.samePage)) {
            // Update the parent content (if it exists).
            if (this.parentContent) {
                this.parentContent.updateContent(args, this.component, this.method, this.jsData);
            }
        } else {
            let jsData = this.jsData;
            if (jsData === true && this.parentContent) {
                jsData = this.parentContent.data;
            }

            this.navCtrl.push('CoreSitePluginsPluginPage', {
                title: this.title || (this.parentContent && this.parentContent.pageTitle),
                component: this.component || (this.parentContent && this.parentContent.component),
                method: this.method || (this.parentContent && this.parentContent.method),
                args: args,
                initResult: this.parentContent && this.parentContent.initResult,
                jsData: jsData,
                preSets: this.newContentPreSets
            });
        }
    }
}