import { angularViewArrayFactory } from './angular-view-array';
import { ViewArrayImpl } from './view-array.impl';


describe("Service: AngularViewArray", () => {
  var angularViewArray: any;
  var $interval: ng.IIntervalService;

  beforeEach(inject(($injector: ng.auto.IInjectorService) => {
    $interval = $injector.get('$interval');
    angularViewArray = angularViewArrayFactory($interval);
  }));

  describe("create", () => {

    it("sanity", () => {
      expect(angularViewArrayFactory).toBeDefined();
    });

    it("returns a ViewArray object", () => {
      var viewArray: ViewArrayImpl = angularViewArray.create();

      expect(viewArray).toBeDefined();
    });

    describe("returned ViewArray object", () => {
      var viewArray: ViewArrayImpl;

      beforeEach(() => {
        viewArray = angularViewArray.create();
      });

      describe("constructor", () => {
        // TODO
      });

      describe("length", () => {

        it("returns the number of entries", () => {
          viewArray.entries = [{}, {}, {}];

          expect(viewArray.length()).toEqual(viewArray.entries.length);
        });
      });

      describe("get", () => {

        it("returns the entry at a given index", () => {
          var index: number = 8;
          viewArray.entries = new Array(10);
          viewArray.entries[index] = 3;

          expect(viewArray.get(index)).toEqual(viewArray.entries[index]);
        });
      });

      describe("push", () => {

        it("adds given element to the end of entries", () => {
          var element: number = 3;
          var originalLength: number = viewArray.length();
          viewArray.push(element);

          expect(viewArray.entries.length).toEqual(originalLength + 1);
          expect(viewArray.get(originalLength)).toEqual(element);
        });

        it("sets 'hasEntries' to true", () => {
          viewArray.push(2);

          expect(viewArray.hasEntries).toBe(true);
        });

        it("starts timer if 'isVisible' is true", () => {
          spyOn(viewArray, "startTimer_").and.returnValue(null);
          viewArray.isVisible = true;
          viewArray.push(2);

          expect(viewArray.startTimer_).toHaveBeenCalled();
        });

        it("does not start timer if 'isVisible' is false", () => {
          spyOn(viewArray, "startTimer_").and.returnValue(null);
          viewArray.isVisible = false;
          viewArray.push(2);

          expect(viewArray.startTimer_).not.toHaveBeenCalled();
        });
      });

      describe("toggle", () => {

        it("sets 'isVisible' to false if currently true", () => {
          viewArray.isVisible = true;
          viewArray.toggle();

          expect(viewArray.isVisible).toBe(false);
        });

        it("sets 'isVisible' to true if currently false", () => {
          viewArray.isVisible = false;
          viewArray.toggle();

          expect(viewArray.isVisible).toBe(true);
        });
      });

      describe("setVisible", () => {

        it("sets 'isVisible' to false if given false", () => {
          viewArray.setVisible(false);

          expect(viewArray.isVisible).toBe(false);
        });

        it("sets 'visibleEntries' to empty array if given false", () => {
          viewArray.setVisible(false);

          expect(viewArray.visibleEntries.length).toEqual(0);
        });

        it("shows additional entries if given true", () => {
          spyOn(viewArray, "showAdditionalEntries_").and.returnValue(null);
          viewArray.setVisible(true);

          expect(viewArray.showAdditionalEntries_).toHaveBeenCalled();
        });

        it("does not show additional entries if given false", () => {
          spyOn(viewArray, "showAdditionalEntries_").and.returnValue(null);
          viewArray.setVisible(false);

          expect(viewArray.showAdditionalEntries_).not.toHaveBeenCalled();
        });

        it("starts timer if given true", () => {
          spyOn(viewArray, "startTimer_").and.returnValue(null);
          viewArray.setVisible(true);

          expect(viewArray.startTimer_).toHaveBeenCalled();
        });

        it("stops timer if given false", () => {
          spyOn(viewArray, "stopTimer_").and.returnValue(null);
          viewArray.setVisible(true);

          expect(viewArray.stopTimer_).toHaveBeenCalled();
        });
      });
    });
  });
});