/*!
 * @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 } from 'ng2-alfresco-core';
import { ProcessInstance } from '../models/process-instance';
import { ActivitiProcessService } from './../services/activiti-process.service';
import { DatePipe } from '@angular/common';

declare let componentHandler: any;

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

    @Input()
    processInstance: ProcessInstance;

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

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

    constructor(private translate: AlfrescoTranslationService,
                private activitiProcess: ActivitiProcessService) {

        if (translate) {
            translate.addTranslationFolder('node_modules/ng2-activiti-tasklist/src');
        }
    }

    getStartedByFullName() {
        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) {
            console.error(`ProcessListInstanceHeader: error parsing date ${value} to format ${format}`);
        }
    }

    cancelProcess() {
        this.activitiProcess.cancelProcess(this.processInstance.id).subscribe(
            (res) => {
                this.processCancelled.emit(res);
            }, (err) => {
                console.error(err);
                this.onError.emit(err);
            });
    }
}