import {Component, Input} from '@angular/core';
import {ErrorCodes} from './properties/openaireProperties';

@Component({
    selector: 'errorMessages',
    template: `
      <div *ngIf="status.some(checkErroCode(errorCodes.LOADING))" class="uk-animation-fade uk-margin-top  uk-width-1-1" role="alert"><img src="./assets/loading.gif" class="uk-align-center" alt="Loading"></div>
      <div *ngIf="status.every(checkErroCode(errorCodes.NONE))"   class="uk-animation-fade uk-alert uk-alert-primary" role="alert">No {{type}} available</div>
      <div *ngIf="status.every(checkErroCode(errorCodes.ERROR)) ||
                  (status.some(checkErroCode(errorCodes.ERROR)) && (!status.every(checkErroCode(errorCodes.DONE)) || !status.every(checkErroCode(errorCodes.LOADING))))"
            class="uk-animation-fade uk-alert uk-alert-warning" role="alert">
        An Error Occured
      </div>
      <div *ngIf="status.every(checkErroCode(errorCodes.NOT_AVAILABLE)) ||
                  (status.some(checkErroCode(errorCodes.NOT_AVAILABLE)) && (!status.every(checkErroCode(errorCodes.DONE)) || !status.every(checkErroCode(errorCodes.LOADING))))"
            class="uk-animation-fade uk-alert uk-alert-warning" role="alert">
        Service temprorarily unavailable. Please try again later.
      </div>
      <div *ngIf="status.every(checkErroCode(errorCodes.NOT_FOUND)) ||
                  (status.some(checkErroCode(errorCodes.NOT_FOUND)) && (!status.every(checkErroCode(errorCodes.DONE)) || !status.every(checkErroCode(errorCodes.LOADING))))"
            class="uk-animation-fade uk-alert uk-alert-warning" role="alert">
        No {{type}} found
      </div>
      <div *ngIf="status.every(checkErroCode(errorCodes.OUT_OF_BOUND))" class="uk-animation-fade uk-alert uk-alert-warning" role="alert">Requested page out of bounds</div>
    `
  })

  export class ErrorMessagesComponent {
      @Input() status: Array<number>;
      @Input() type: string;

      public errorCodes:ErrorCodes;

      constructor () {}

      ngOnInit() {
          this.errorCodes = new ErrorCodes();
          console.info("ngOnInit");
          if(!this.status) {
            this.status = [this.errorCodes.LOADING];
          }
      }

      ngOnDestroy() {}

      public checkErroCode(code: number) {
        return function(status: number) {
          return (status == code);
        }
      }
  }