import { Subject } from 'rxjs';

export class FilterDescriptor {
  getUrlFragment(): string {
    let result = '';
    if (
      this.value != this.ignoredValue &&
      typeof this.value !== 'undefined' &&
      this.operator == 'IsGreaterThanOrEqualTo' &&
      this.property
    ) {
      result = `(it.${this.property}.CompareTo(${this.value}) >= 0)`;
    }
    return result;
  }
  setParent(parent: any): any {
    if (this.valueObservable) {
      this.valueObservable.subscribe((value) => {
        this.value = value;
        if (this.value != this.ignoredValue) {
          parent.performLoad();
        }
      });
    }
  }
  property: string = null;
  operator: string = null;
  ignoredValue: string = null;
  value: string = null;
  valueObservable: Subject<any>;
  constructor(values: {
    property?: string;
    operator?: string;
    ignoredValue?: string;
    value?: string;
    valueObservable?: Subject<any>;
  }) {
    if (values.property !== undefined) {
      this.property = values.property;
    }
    if (values.operator !== undefined) {
      this.operator = values.operator;
    }
    this.ignoredValue = values.ignoredValue || '';
    if (values.value == undefined) {
      this.value = values.value;
    }
    if (values.valueObservable !== undefined) {
      this.valueObservable = values.valueObservable;
    }
  }
}

export class SortDescriptor {
  getUrlFragment(): string {
    let result = '';
    if (typeof this.property !== 'undefined') {
      result = `it.${this.property}`;
    }
    return result;
  }

  property: string = null;
  direction: string = null;
  constructor(values: { property?: string; direction: string }) {
    if (values.property !== undefined) {
      this.property = values.property;
    }
    if (values.direction !== undefined) {
      this.direction = values.direction;
    }
  }
}