import {
  AsyncTestCompleter,
  describe,
  proxy,
  it,
  iit,
  ddescribe,
  expect,
  inject,
  beforeEach,
  beforeEachProviders,
  SpyObject
} from 'angular2/testing_internal';

import {Injector, provide} from 'angular2/core';
import {CONST_EXPR} from 'angular2/src/facade/lang';

import {PlatformLocation} from 'angular2/src/router/platform_location';
import {LocationStrategy, APP_BASE_HREF} from 'angular2/src/router/location_strategy';
import {HashLocationStrategy} from 'angular2/src/router/hash_location_strategy';
import {SpyPlatformLocation} from './spies';

export function main() {
  describe('HashLocationStrategy', () => {
    var platformLocation, locationStrategy;

    beforeEachProviders(
        () => [HashLocationStrategy, provide(PlatformLocation, {useClass: SpyPlatformLocation})]);

    describe('without APP_BASE_HREF', () => {
      beforeEach(inject([PlatformLocation, HashLocationStrategy], (pl, ls) => {
        platformLocation = pl;
        locationStrategy = ls;
        platformLocation.spy('pushState');
        platformLocation.pathname = '';
      }));

      it('should prepend urls with a hash for non-empty URLs', () => {
        expect(locationStrategy.prepareExternalUrl('foo')).toEqual('#foo');

        locationStrategy.pushState(null, 'Title', 'foo', '');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '#foo');
      });

      it('should prepend urls with a hash for URLs with query params', () => {
        expect(locationStrategy.prepareExternalUrl('foo?bar')).toEqual('#foo?bar');

        locationStrategy.pushState(null, 'Title', 'foo', 'bar=baz');
        expect(platformLocation.spy('pushState'))
            .toHaveBeenCalledWith(null, 'Title', '#foo?bar=baz');
      });

      it('should prepend urls with a hash for URLs with just query params', () => {
        expect(locationStrategy.prepareExternalUrl('?bar')).toEqual('#?bar');

        locationStrategy.pushState(null, 'Title', '', 'bar=baz');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '#?bar=baz');
      });

      it('should not prepend a hash to external urls for an empty internal URL', () => {
        expect(locationStrategy.prepareExternalUrl('')).toEqual('');

        locationStrategy.pushState(null, 'Title', '', '');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '');
      });
    });

    describe('with APP_BASE_HREF with neither leading nor trailing slash', () => {
      beforeEachProviders(() => [provide(APP_BASE_HREF, {useValue: 'app'})]);

      beforeEach(inject([PlatformLocation, HashLocationStrategy], (pl, ls) => {
        platformLocation = pl;
        locationStrategy = ls;
        platformLocation.spy('pushState');
        platformLocation.pathname = '';
      }));

      it('should prepend urls with a hash for non-empty URLs', () => {
        expect(locationStrategy.prepareExternalUrl('foo')).toEqual('#app/foo');

        locationStrategy.pushState(null, 'Title', 'foo', '');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '#app/foo');
      });

      it('should prepend urls with a hash for URLs with query params', () => {
        expect(locationStrategy.prepareExternalUrl('foo?bar')).toEqual('#app/foo?bar');

        locationStrategy.pushState(null, 'Title', 'foo', 'bar=baz');
        expect(platformLocation.spy('pushState'))
            .toHaveBeenCalledWith(null, 'Title', '#app/foo?bar=baz');
      });

      it('should not prepend a hash to external urls for an empty internal URL', () => {
        expect(locationStrategy.prepareExternalUrl('')).toEqual('#app');

        locationStrategy.pushState(null, 'Title', '', '');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '#app');
      });
    });

    describe('with APP_BASE_HREF with leading slash', () => {
      beforeEachProviders(() => [provide(APP_BASE_HREF, {useValue: '/app'})]);

      beforeEach(inject([PlatformLocation, HashLocationStrategy], (pl, ls) => {
        platformLocation = pl;
        locationStrategy = ls;
        platformLocation.spy('pushState');
        platformLocation.pathname = '';
      }));

      it('should prepend urls with a hash for non-empty URLs', () => {
        expect(locationStrategy.prepareExternalUrl('foo')).toEqual('#/app/foo');

        locationStrategy.pushState(null, 'Title', 'foo', '');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '#/app/foo');
      });

      it('should prepend urls with a hash for URLs with query params', () => {
        expect(locationStrategy.prepareExternalUrl('foo?bar')).toEqual('#/app/foo?bar');

        locationStrategy.pushState(null, 'Title', 'foo', 'bar=baz');
        expect(platformLocation.spy('pushState'))
            .toHaveBeenCalledWith(null, 'Title', '#/app/foo?bar=baz');
      });

      it('should not prepend a hash to external urls for an empty internal URL', () => {
        expect(locationStrategy.prepareExternalUrl('')).toEqual('#/app');

        locationStrategy.pushState(null, 'Title', '', '');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '#/app');
      });
    });

    describe('with APP_BASE_HREF with both leading and trailing slash', () => {
      beforeEachProviders(() => [provide(APP_BASE_HREF, {useValue: '/app/'})]);

      beforeEach(inject([PlatformLocation, HashLocationStrategy], (pl, ls) => {
        platformLocation = pl;
        locationStrategy = ls;
        platformLocation.spy('pushState');
        platformLocation.pathname = '';
      }));

      it('should prepend urls with a hash for non-empty URLs', () => {
        expect(locationStrategy.prepareExternalUrl('foo')).toEqual('#/app/foo');

        locationStrategy.pushState(null, 'Title', 'foo', '');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '#/app/foo');
      });

      it('should prepend urls with a hash for URLs with query params', () => {
        expect(locationStrategy.prepareExternalUrl('foo?bar')).toEqual('#/app/foo?bar');

        locationStrategy.pushState(null, 'Title', 'foo', 'bar=baz');
        expect(platformLocation.spy('pushState'))
            .toHaveBeenCalledWith(null, 'Title', '#/app/foo?bar=baz');
      });

      it('should not prepend a hash to external urls for an empty internal URL', () => {
        expect(locationStrategy.prepareExternalUrl('')).toEqual('#/app/');

        locationStrategy.pushState(null, 'Title', '', '');
        expect(platformLocation.spy('pushState')).toHaveBeenCalledWith(null, 'Title', '#/app/');
      });
    });
  });
}