import deepfreeze from 'deep-freeze';
import { http } from 'calypso/state/data-layer/wpcom-http/actions';
import {
	requestPage as requestPageAction,
	receivePage,
	receiveUpdates,
} from 'calypso/state/reader/streams/actions';
import { requestPage, handlePage, INITIAL_FETCH, PER_FETCH, QUERY_META } from '../';

jest.mock( 'calypso/lib/analytics/tracks', () => ( {
	recordTracksEvent: jest.fn(),
} ) );

jest.mock( 'calypso/lib/wp' );
jest.mock( 'calypso/reader/stats', () => ( { recordTrack: () => {} } ) );
jest.mock( '@wordpress/warning', () => () => {} );

describe( 'streams', () => {
	const action = deepfreeze( requestPageAction( { streamKey: 'following', page: 2 } ) );

	describe( 'requestPage', () => {
		const query = {
			orderBy: 'date',
			meta: QUERY_META,
			number: INITIAL_FETCH,
			content_width: 675,
			lang: 'en',
		};

		it( 'should return an http request', () => {
			expect( requestPage( action ) ).toEqual(
				http( {
					method: 'GET',
					path: '/read/following',
					apiVersion: '1.2',
					query,
					onSuccess: action,
					onFailure: action,
				} )
			);
		} );

		it( 'should set proper params for subsequent fetches', () => {
			const pageHandle = { after: 'the robots attack' };
			const secondPage = { ...action, payload: { ...action.payload, pageHandle, feedId: 1234 } };
			const httpAction = requestPage( secondPage );

			expect( httpAction ).toEqual(
				http( {
					method: 'GET',
					path: '/read/following',
					apiVersion: '1.2',
					query: { ...query, feed_id: 1234, number: PER_FETCH, after: 'the robots attack' },
					onSuccess: secondPage,
					onFailure: secondPage,
				} )
			);
		} );

		describe( 'stream types', () => {
			// a bunch of test cases
			// each test is an assertion of the http call that should be made
			// when the given stream id is handed to request page
			[
				{
					stream: 'following',
					expected: {
						method: 'GET',
						path: '/read/following',
						apiVersion: '1.2',
						query,
					},
				},
				{
					stream: 'discover:recommended',
					expected: {
						method: 'GET',
						path: '/read/streams/discover',
						apiNamespace: 'wpcom/v2',
						query: {
							...query,
							tag_recs_per_card: 5,
							site_recs_per_card: 5,
							tags: [],
							age_based_decay: 0.5,
							orderBy: 'popular',
						},
					},
				},
				{
					stream: 'discover:dailyprompt',
					expected: {
						method: 'GET',
						path: `/read/streams/discover?tags=dailyprompt`,
						apiNamespace: 'wpcom/v2',
						query: {
							...query,
							tag_recs_per_card: 5,
							site_recs_per_card: 5,
							tags: [],
							age_based_decay: 0.5,
						},
					},
				},
				{
					stream: 'a8c',
					expected: {
						method: 'GET',
						path: '/read/a8c',
						apiVersion: '1.2',
						query,
					},
				},
				{
					stream: 'p2',
					expected: {
						method: 'GET',
						path: '/read/following/p2',
						apiVersion: '1.2',
						query,
					},
				},
				{
					stream: 'conversations',
					expected: {
						method: 'GET',
						path: '/read/conversations',
						apiVersion: '1.2',
						query: { ...query, comments_per_post: 20 },
					},
				},
				{
					stream: 'conversations-a8c',
					expected: {
						method: 'GET',
						path: '/read/conversations',
						apiVersion: '1.2',
						query: { ...query, comments_per_post: 20, index: 'a8c' },
					},
				},
				{
					stream: 'search: { "q": "foo", "sort": "date" }',
					expected: {
						method: 'GET',
						path: '/read/search',
						apiVersion: '1.2',
						query: {
							sort: 'date',
							q: 'foo',
							lang: 'en',
							number: INITIAL_FETCH,
							content_width: 675,
						},
					},
				},
				{
					stream: 'search: { "q": "foo:bar", "sort": "relevance" }',
					expected: {
						method: 'GET',
						path: '/read/search',
						apiVersion: '1.2',
						query: {
							sort: 'relevance',
							q: 'foo:bar',
							lang: 'en',
							number: INITIAL_FETCH,
							content_width: 675,
						},
					},
				},
				{
					stream: 'feed:1234',
					expected: {
						method: 'GET',
						path: '/read/feed/1234/posts',
						apiVersion: '1.2',
						query,
					},
				},
				{
					stream: 'site:1234',
					expected: {
						method: 'GET',
						path: '/read/sites/1234/posts',
						apiVersion: '1.2',
						query,
					},
				},
				{
					stream: 'featured:1234',
					expected: {
						method: 'GET',
						path: '/read/sites/1234/featured',
						apiVersion: '1.2',
						query,
					},
				},
				{
					stream: 'likes',
					expected: {
						method: 'GET',
						path: '/read/liked',
						apiVersion: '1.2',
						query,
					},
				},
				{
					stream: 'recommendations_posts',
					expected: {
						method: 'GET',
						path: '/read/recommendations/posts',
						apiVersion: '1.2',
						query: {
							algorithm: 'read:recommendations:posts/es/1',
							seed: expect.any( Number ),
						},
					},
				},
				{
					stream: 'custom_recs_posts_with_images',
					expected: {
						method: 'GET',
						path: '/read/recommendations/posts',
						apiVersion: '1.2',
						query: {
							...query,
							alg_prefix: 'read:recommendations:posts',
							seed: expect.any( Number ),
						},
					},
				},
			].forEach( ( testCase ) => {
				it( testCase.stream + ' should pass the expected params', () => {
					const pageAction = requestPageAction( { streamKey: testCase.stream } );
					const expected = {
						onSuccess: pageAction,
						onFailure: pageAction,
						...testCase.expected,
					};
					expect( requestPage( pageAction ) ).toEqual( http( expected ) );
				} );
			} );
		} );
	} );

	describe( 'handlePage', () => {
		const data = deepfreeze( {
			posts: [
				{
					blogId: undefined,
					date: undefined,
					feed_ID: undefined,
					feed_URL: undefined,
					postId: undefined,
					site_description: undefined,
					site_icon: undefined,
					site_name: undefined,
					url: undefined,
					xPostMetadata: null,
				},
			],
			date_range: {
				after: '2018',
			},
		} );

		it( 'should return a receivePage action', () => {
			const { streamKey, query } = action.payload;
			const result = handlePage( action, data );
			expect( result ).toEqual( [
				expect.any( Function ), // receivePosts thunk
				receivePage( {
					streamKey,
					query,
					streamItems: data.posts,
					gap: null,
					pageHandle: { before: '2018' },
					totalItems: 1,
					totalPages: 1,
				} ),
			] );
		} );

		it( 'should return a receiveUpdates action when type is a poll', () => {
			const { streamKey, query } = action.payload;
			expect(
				handlePage( { ...action, payload: { ...action.payload, isPoll: true } }, data )
			).toEqual( [
				receiveUpdates( {
					streamKey,
					query,
					streamItems: data.posts,
					gap: null,
					pageHandle: { before: '2018' },
				} ),
			] );
		} );
	} );
} );