import { Injectable } from '@angular/core';
import { QueryCondition } from '../entity/querycondition';

@Injectable()
export class SolutionService {

  constructor() { }

  getGuid() {
    return (this.s4() + this.s4() + "-" + this.s4() + "-" + this.s4() + "-" + this.s4() + "-" + this.s4() + this.s4() + this.s4());
  }

  private s4() {
    return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
  }
  /**
  * 根据字段获取Lable控件的Title
  * @param field 
  */
  getConditionItemTitle(field: QueryCondition) {
    if (field.id && field.id !== '') {
      return field.fieldName;
    }
  }

  /**
   * 数组克隆 也可使用JSON.Parse(JSON.Stringify([input])),前提类结构中没有借口
   * @param input 
   */
  arrayClone(input: Array<any>): Array<any> {
    let result = new Array<any>();
    if (input && input.length > 0) {
      input.forEach(element => {
        result.push(Object.assign({}, element));
      });
    }
    return result;
  }
}