import { Response } from '@angular/http';
import { ViewChild } from '@angular/core';

import { Utils } from './utils';
import { MessageBoxComponent } from './messagebox.component';

declare var calLang: any, fileDownloadRoot: string, isRunning: number;
export abstract class BaseComponent {
	@ViewChild(MessageBoxComponent) messageBox: MessageBoxComponent;
	calLang = calLang;
	static MSG_SAVED_KEY = "msg.saved.success";
	static MSG_DELETED_KEY = "msg.deleted.success";
	/**
	 * 解析国际化消息
	 * @param key 键
	 * @param params 参数
	 */
	resolveMessage(key: string, ...params: string[]): string {
		return Utils.resolveLocalizedMessage(key, params);
	}
	/**
	 * 生成下载链接。
	 * @param uri 附件的相对路径
	 */
	resolveDownloadUrl(uri: string): string {
		return fileDownloadRoot + uri;
	}
	/**
	 * 格式化日期
	 * @param date 日期
	 * @param pattern 格式，如 'yyyy-MM-dd hh:mm:ss.S', 'yyyy年qq季度'
	 *
	 */
	formatDate(date: Date, pattern: string): string {
		if (date) {
			return Utils.formatDate(date, pattern);
		}
		return "";
	}
	/**
	 * 处理错误
	 * @param error 错误对象
	 */
	protected handleError(error: any, mBox: MessageBoxComponent = this.messageBox): void {
		if (this && this.messageBox) {
			this.messageBox.showMessage("error", error);
		} else if (mBox) {
			mBox.showMessage("error", error);
		} else {
			alert(error);
		}
	}
	/**
	 * 显示错误消息
	 * @param message 消息
	 */
	protected showError(message: string) {
		this.showMessage(message, "error");
	}
	/**
	 * i18n的显示警告消息
	 * @param messageKey 要显示的消息key
	 */
	protected showWarnKey(messageKey: string) {
		this.showMessage(this.resolveMessage(messageKey), "warn");
	}
	/**
	 * i18n的显示成功消息
	 * @param messageKey 要显示的消息key
	 */
	protected showSuccessKey(messageKey: string) {
		this.showMessage(this.resolveMessage(messageKey), "success");
	}
	/**
	 * 	i18n的显示通知消息
	 * @param messageKey 要显示的消息key
	 */
	protected showInfoKey(messageKey: string) {
		this.showMessage(this.resolveMessage(messageKey), "info");
	}
	/**
	 * 	i18n的显示错误消息
	 * @param messageKey 要显示的消息key
	 */
	protected showErrorKey(messageKey: string) {
		this.showMessage(this.resolveMessage(messageKey), "error");
	}
	/**
	 * 显示消息
	 * @param message 要显示的消息
	 * @param style 消息风格，"warn","success","info","error"
	 */

	protected showMessage(message: string, style: string) {
		if (this && this.messageBox) {
			this.messageBox.showMessage(style, message);
		} else {
			alert(message);
		}
	}
	/**
	 * 获取请求串中的参数值
	 * @param name 参数名称
	 * 
	 */
	protected getRequestParamValue(name: string): string {
		let result = location.search.match(new RegExp("[\?\&]" + name + "=([^\&]+)", "i"));
		if (result == null || result.length < 1) {
			return null;
		}
		return result[1];
	}
	/**
	 * 获取请求串中的参数值数组，如a=x&a=y, 则参数a的值为['x','y']
	 * @param name 参数名称
	 */
	protected getRequestParamValues(name: string): string[] {
		let result = location.search.match(new RegExp("[\?\&]" + name + "=([^\&]+)", "i"));
		if (result == null || result.length < 1) {
			return null;
		}
		return result;
	}
	/**
	 * 判断是否有异步任务正在执行，以便界面显示相关信息，让用户等待
	 */
	isRunning(): boolean {
		return isRunning > 0;
	}
}