/*!
 * @license
 * Copyright 2016 Alfresco Software, 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 { Injectable } from '@angular/core';
import { MdDialog } from '@angular/material';
import { MinimalNodeEntity, MinimalNodeEntryEntity } from 'alfresco-js-api';
import { AlfrescoApiService } from 'ng2-alfresco-core';

import { ViewerDialogComponent } from './../components/viewer-dialog/viewer-dialog.component';
import { ViewerDialogSettings } from './../components/viewer-dialog/viewer-dialog.settings';

@Injectable()
export class ViewerService {

    constructor(private dialog: MdDialog,
                private apiService: AlfrescoApiService) {
    }

    showViewerForNode(node: MinimalNodeEntryEntity, settings: ViewerDialogSettings = {}): Promise<boolean> {
        return new Promise<boolean>((resolve, reject) => {
            const dialogSettings = Object.assign({}, settings, {
                fileName: node.name,
                fileMimeType: node.content.mimeType,
                fileUrl: this.apiService.contentApi.getContentUrl(node.id, false),
                downloadUrl: this.apiService.contentApi.getContentUrl(node.id, true),
                nodeId: node.id
            });

            const dialogRef = this.dialog.open(ViewerDialogComponent, {
                panelClass: 'adf-viewer-dialog-panel',
                data: dialogSettings
            });

            dialogRef.afterClosed().subscribe(result => {
                resolve(result);
            });
        });
    }

    showViewerForNodeId(nodeId: string, settings: ViewerDialogSettings = {}): Promise<boolean> {
        return new Promise<boolean>((resolve, reject) => {
            this.apiService.nodesApi.getNode(nodeId).then(
                (node: MinimalNodeEntity) => {
                    if (node && node.entry && node.entry.isFile) {
                        return this.showViewerForNode(node.entry, settings);
                    } else {
                        resolve(false);
                    }
                }
            );
        });
    }
}