/*!
 * @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 { Component, Input, Output, EventEmitter } from '@angular/core';
import { AlfrescoTranslationService, LogService } from 'ng2-alfresco-core';
import { ProcessInstance } from '../models/process-instance.model';
import { DatePipe } from '@angular/common';

declare let componentHandler: any;

@Component({
    selector: 'adf-process-instance-header, activiti-process-instance-header',
    templateUrl: './activiti-process-instance-header.component.html',
    styleUrls: ['./activiti-process-instance-header.component.css']
})
export class ActivitiProcessInstanceHeader {

    @Input()
    showDiagram: boolean = true;

    @Input()
    processInstance: ProcessInstance;

    @Output()
    onError: EventEmitter<any> = new EventEmitter<any>();

    @Output()
    showProcessDiagram: EventEmitter<any> = new EventEmitter<any>();

    constructor(private translate: AlfrescoTranslationService,
                private logService: LogService) {

        if (translate) {
            translate.addTranslationFolder('ng2-activiti-processlist', 'assets/ng2-activiti-processlist');
        }
    }

    getStartedByFullName(): string {
        if (this.processInstance && this.processInstance.startedBy) {
            return (this.processInstance.startedBy.firstName && this.processInstance.startedBy.firstName !== 'null'
                    ? this.processInstance.startedBy.firstName + ' ' : '') +
                this.processInstance.startedBy.lastName;
        }
        return '';
    }

    getFormatDate(value, format: string) {
        let datePipe = new DatePipe('en-US');
        try {
            return datePipe.transform(value, format);
        } catch (err) {
            this.logService.error(`ProcessListInstanceHeader: error parsing date ${value} to format ${format}`);
        }
    }

    isRunning(): boolean {
        return this.processInstance && !this.processInstance.ended;
    }

    isDiagramDisabled(): boolean {
        return !this.isRunning() ? true : undefined;
    }

    showDiagramEvent() {
        this.showProcessDiagram.emit({value: this.processInstance.id});
    }

    isShowDiagram(): boolean {
        return this.showDiagram;
    }
}