/* jshint expr:true */
import {expect} from 'chai';
import {
    describe,
    it
} from 'mocha';
import EmberObject from 'ember-object';
import RSVP from 'rsvp';
import run, {later} from 'ember-runloop';
import {task} from 'ember-concurrency';
import EditorBaseControllerMixin from 'ghost-admin/mixins/editor-base-controller';

const {resolve} = RSVP;

describe('Unit: Mixin: editor-base-controller', function() {
    describe('generateSlug', function () {
        it('should generate a slug and set it on the model', function (done) {
            let object = EmberObject.extend(EditorBaseControllerMixin, {
                slugGenerator: EmberObject.create({
                    generateSlug(slugType, str) {
                        return RSVP.resolve(`${str}-slug`);
                    }
                }),
                model: EmberObject.create({slug: ''})
            }).create();

            object.set('model.titleScratch', 'title');

            run(() => {
                let promise = object.get('generateSlug').perform();

                expect(object.get('model.slug')).to.equal('');

                promise.then(() => {
                    expect(object.get('model.slug')).to.equal('title-slug');

                    done();
                }).catch(done);
            });
        });

        it('should not set the destination if the title is "(Untitled)" and the post already has a slug', function (done) {
            let object = EmberObject.extend(EditorBaseControllerMixin, {
                slugGenerator: EmberObject.create({
                    generateSlug(slugType, str) {
                        return RSVP.resolve(`${str}-slug`);
                    }
                }),
                model: EmberObject.create({
                    slug: 'whatever'
                })
            }).create();

            expect(object.get('model.slug')).to.equal('whatever');

            object.set('model.titleScratch', '(Untitled)');

            run(() => {
                object.get('generateSlug').perform().then(() => {
                    expect(object.get('model.slug')).to.equal('whatever');

                    done();
                }).catch(done);
            });
        });
    });

    describe('updateTitle', function () {
        it('should invoke generateSlug if the post is new and a title has not been set', function (done) {
            let object = EmberObject.extend(EditorBaseControllerMixin, {
                model: EmberObject.create({isNew: true}),
                generateSlug: task(function* () {
                    this.set('model.slug', 'test-slug');
                    yield resolve();
                })
            }).create();

            expect(object.get('model.isNew')).to.be.true;
            expect(object.get('model.titleScratch')).to.not.be.ok;

            run(() => {
                object.get('updateTitle').perform('test');

                later(() => {
                    expect(object.get('model.titleScratch')).to.equal('test');
                    expect(object.get('model.slug')).to.equal('test-slug');

                    done();
                }, 800);
            });
        });

        it('should invoke generateSlug if the post is not new and a title is "(Untitled)"', function (done) {
            let object = EmberObject.extend(EditorBaseControllerMixin, {
                model: EmberObject.create({isNew: false}),
                generateSlug: task(function* () {
                    this.set('model.slug', 'test-slug');
                    yield resolve();
                })
            }).create();

            expect(object.get('model.isNew')).to.be.false;
            expect(object.get('model.titleScratch')).to.not.be.ok;

            run(() => {
                object.get('updateTitle').perform('(Untitled)');

                later(() => {
                    expect(object.get('model.titleScratch')).to.equal('(Untitled)');
                    expect(object.get('model.slug')).to.equal('test-slug');

                    done();
                }, 800);
            });
        });

        it('should not invoke generateSlug if the post is new but has a title', function (done) {
            let object = EmberObject.extend(EditorBaseControllerMixin, {
                model: EmberObject.create({
                    isNew: true,
                    title: 'a title'
                }),
                generateSlug: task(function* () {
                    expect(false, 'generateSlug should not be called').to.equal(true);

                    yield resolve();
                })
            }).create();

            expect(object.get('model.isNew')).to.be.true;
            expect(object.get('model.title')).to.equal('a title');
            expect(object.get('model.titleScratch')).to.not.be.ok;

            run(() => {
                object.get('updateTitle').perform('test');

                later(() => {
                    expect(object.get('model.titleScratch')).to.equal('test');
                    expect(object.get('model.slug')).to.not.be.ok;

                    done();
                }, 800);
            });
        });

        it('should not invoke generateSlug if the post is not new and the title is not "(Untitled)"', function (done) {
            let object = EmberObject.extend(EditorBaseControllerMixin, {
                model: EmberObject.create({isNew: false}),
                generateSlug: task(function* () {
                    expect(false, 'generateSlug should not be called').to.equal(true);

                    yield resolve();
                })
            }).create();

            expect(object.get('model.isNew')).to.be.false;
            expect(object.get('model.title')).to.not.be.ok;

            run(() => {
                object.get('updateTitle').perform('title');

                later(() => {
                    expect(object.get('model.titleScratch')).to.equal('title');
                    expect(object.get('model.slug')).to.not.be.ok;

                    done();
                }, 800);
            });
        });
    });
});