import { Multiaddr } from 'multiaddr';
import { nodes } from '../connection';
import { RequestFlowBuilder } from '../../internal/RequestFlowBuilder';
import log from 'loglevel';
import { FluencePeer } from '../../index';
import { checkConnection } from '../../internal/utils';

const peer = new FluencePeer();

describe('Typescript usage suite', () => {
    afterEach(async () => {
        if (peer) {
            await peer.uninit();
        }
    });

    it('should make a call through network', async () => {
        // arrange
        await peer.init({ connectTo: nodes[0] });

        // act
        const [request, promise] = new RequestFlowBuilder()
            .withRawScript(
                `(seq 
        (call init_relay ("op" "identity") ["hello world!"] result)
        (call %init_peer_id% ("callback" "callback") [result])
    )`,
            )
            .buildAsFetch<[string]>('callback', 'callback');
        await peer.internals.initiateFlow(request);
        console.log(request.getParticle().script);

        // assert
        const [result] = await promise;
        expect(result).toBe('hello world!');
    });

    it('check connection should work', async function () {
        await peer.init({ connectTo: nodes[0] });

        let isConnected = await checkConnection(peer);

        expect(isConnected).toEqual(true);
    });

    it('check connection should work with ttl', async function () {
        await peer.init({ connectTo: nodes[0] });

        let isConnected = await checkConnection(peer, 10000);

        expect(isConnected).toEqual(true);
    });

    it('two clients should work inside the same time browser', async () => {
        // arrange
        const peer1 = new FluencePeer();
        await peer1.init({ connectTo: nodes[0] });
        const peer2 = new FluencePeer();
        await peer2.init({ connectTo: nodes[0] });

        let resMakingPromise = new Promise((resolve) => {
            peer2.internals.callServiceHandler.onEvent('test', 'test', (args, _) => {
                resolve([...args]);
                return {};
            });
        });

        let script = `
            (seq
                (call "${peer1.connectionInfo.connectedRelay}" ("op" "identity") [])
                (call "${peer2.connectionInfo.selfPeerId}" ("test" "test") [a b c d])
            )
        `;

        let data: Map<string, any> = new Map();
        data.set('a', 'some a');
        data.set('b', 'some b');
        data.set('c', 'some c');
        data.set('d', 'some d');

        await peer1.internals.initiateFlow(new RequestFlowBuilder().withRawScript(script).withVariables(data).build());

        let res = await resMakingPromise;
        expect(res).toEqual(['some a', 'some b', 'some c', 'some d']);

        await peer1.uninit();
        await peer2.uninit();
    });

    describe('should make connection to network', () => {
        it('address as string', async () => {
            // arrange
            const addr = nodes[0];

            // act
            await peer.init({ connectTo: addr });
            const isConnected = await checkConnection(peer);

            // assert
            expect(isConnected).toBeTruthy;
        });

        it('address as multiaddr', async () => {
            // arrange
            const addr = new Multiaddr(nodes[0].multiaddr);

            // act
            await peer.init({ connectTo: addr });
            const isConnected = await checkConnection(peer);

            // assert
            expect(isConnected).toBeTruthy;
        });

        it('address as node', async () => {
            // arrange
            const addr = nodes[0];

            // act
            await peer.init({ connectTo: addr });
            const isConnected = await checkConnection(peer);

            // assert
            expect(isConnected).toBeTruthy;
        });

        it('peerid as peer id', async () => {
            // arrange
            const addr = nodes[0];

            // act
            await peer.init({ connectTo: addr });
            const isConnected = await checkConnection(peer);

            // assert
            expect(isConnected).toBeTruthy;
        });

        it('peerid as seed', async () => {
            // arrange
            const addr = nodes[0];

            // act
            await peer.init({ connectTo: addr });
            const isConnected = await checkConnection(peer);

            // assert
            expect(isConnected).toBeTruthy;
        });

        it('With connection options: dialTimeout', async () => {
            // arrange
            const addr = nodes[0];

            // act
            await peer.init({ connectTo: addr, dialTimeoutMs: 100000 });
            const isConnected = await checkConnection(peer);

            // assert
            expect(isConnected).toBeTruthy;
        });

        it('With connection options: skipCheckConnection', async () => {
            // arrange
            const addr = nodes[0];

            // act
            await peer.init({ connectTo: addr, skipCheckConnection: true });
            const isConnected = await checkConnection(peer);

            // assert
            expect(isConnected).toBeTruthy;
        });

        it('With connection options: checkConnectionTTL', async () => {
            // arrange
            const addr = nodes[0];

            // act
            await peer.init({ connectTo: addr, checkConnectionTimeoutMs: 1000 });
            const isConnected = await checkConnection(peer);

            // assert
            expect(isConnected).toBeTruthy;
        });
    });

    it('xor handling should work with connected client', async function () {
        // arrange
        const [request, promise] = new RequestFlowBuilder()
            .withRawScript(
                `
            (seq 
                (call init_relay ("op" "identity") [])
                (call init_relay ("incorrect" "service") ["incorrect_arg"])
            )
        `,
            )
            .buildWithErrorHandling();

        // act
        await peer.init({ connectTo: nodes[0] });
        await peer.internals.initiateFlow(request);

        // assert
        await expect(promise).rejects.toMatchObject({
            msg: expect.stringContaining("Service with id 'incorrect' not found"),
            instruction: expect.stringContaining('incorrect'),
        });
    });

    it('xor handling should work with local client', async function () {
        // arrange
        const [request, promise] = new RequestFlowBuilder()
            .withRawScript(
                `
            (call %init_peer_id% ("service" "fails") [])
            `,
            )
            .configHandler((h) => {
                h.use((req, res, _) => {
                    res.retCode = 1;
                    res.result = 'service failed internally';
                });
            })
            .buildWithErrorHandling();

        // act
        await peer.init();
        await peer.internals.initiateFlow(request);

        // assert
        await expect(promise).rejects.toMatch('service failed internally');
    });

    it.skip('Should throw correct message when calling non existing local service', async function () {
        // arrange
        await peer.init();

        // act
        const res = callIdentifyOnInitPeerId(peer);

        // assert
        await expect(res).rejects.toMatchObject({
            msg: expect.stringContaining(
                `The handler did not set any result. Make sure you are calling the right peer and the handler has been registered. Original request data was: serviceId='peer' fnName='identify' args=''\"'`,
            ),
            instruction: 'call %init_peer_id% ("peer" "identify") [] res',
        });
    });

    it('Should not crash if undefined is passed as a variable', async () => {
        // arrange
        await peer.init();
        const [request, promise] = new RequestFlowBuilder()
            .withRawScript(
                `
                (seq
                 (call %init_peer_id% ("op" "identity") [arg] res)
                 (call %init_peer_id% ("return" "return") [res])
                )
            `,
            )
            .withVariable('arg', undefined as any)
            .buildAsFetch<any[]>('return', 'return');

        // act
        await peer.internals.initiateFlow(request);
        const [res] = await promise;

        // assert
        expect(res).toBe(null);
    });

    it('Should throw correct error when the client tries to send a particle not to the relay', async () => {
        // arrange
        await peer.init();

        // act
        const [req, promise] = new RequestFlowBuilder()
            .withRawScript('(call "incorrect_peer_id" ("any" "service") [])')
            .buildWithErrorHandling();

        await peer.internals.initiateFlow(req);

        // assert
        await expect(promise).rejects.toMatch(
            'Particle is expected to be sent to only the single peer (relay which client is connected to)',
        );
    });
});

async function callIdentifyOnInitPeerId(peer: FluencePeer): Promise<string[]> {
    let request;
    const promise = new Promise<string[]>((resolve, reject) => {
        request = new RequestFlowBuilder()
            .withRawScript(
                `
  (call %init_peer_id% ("peer" "identify") [] res)
            `,
            )
            .handleScriptError(reject)
            .build();
    });
    await peer.internals.initiateFlow(request);
    return promise;
}