const chai = require('chai');
const chaiHttp = require('chai-http');
const express = require('express');
import { SetupApp } from '../../../app';
import { expect } from 'chai';
import * as helpers from './helpers';
import { sha512 } from 'js-sha512';

async function init() {
    chai.use(chaiHttp);
    const app = express();
    const knex = await helpers.initTestDB();

    // Add test users.
    await knex.insert({ email: "test1@test.com", passwordHash: sha512('pass1') }).into('users');
    await knex.insert({ email: "test2@test.com", passwordHash: sha512('pass2') }).into('users');

    SetupApp(app, knex, '');

    // Login as a test user.
    var agent = chai.request.agent(app);
    await agent
        .post('/login?username=' + encodeURIComponent("test1@test.com") + '&password=' + encodeURIComponent('pass1'))
        .send({});
    return agent;
}

describe('POST /song with no title', () => {
    it('should fail', async done => {
        let agent = await init();
        let req = agent.keepOpen();
        try {
            await helpers.createSong(req, {}, 400);
        } finally {
            req.close();
            agent.close();
            done();
        }
    });
});

describe('POST /song with only a title', () => {
    it('should return the first available id', async done => {
        let agent = await init();
        let req = agent.keepOpen();
        try {
            await helpers.createSong(req, { title: "MySong" }, 200, { id: 1 });
        } finally {
            req.close();
            agent.close();
            done();
        }
    });
});

describe('POST /song with a nonexistent artist Id', () => {
    it('should fail', async done => {
        let agent = await init();
        let req = agent.keepOpen();
        try {
            await helpers.createSong(req, { title: "MySong", artistIds: [1] }, 400);
        } finally {
            req.close();
            agent.close();
            done();
        }
    });
});

describe('POST /song with an existing artist Id', () => {
    it('should succeed', async done => {
        let agent = await init();
        let req = agent.keepOpen();
        try {
            await helpers.createArtist(req, { name: "MyArtist" }, 200, { id: 1 });
            await helpers.createSong(req, { title: "MySong", artistIds: [1] }, 200, { id: 1 });
        } finally {
            req.close();
            agent.close();
            done();
        }
    });
});

describe('POST /song with two existing artist Ids', () => {
    it('should succeed', async done => {
        let agent = await init();
        let req = agent.keepOpen();
        try {
            await helpers.createArtist(req, { name: "Artist1" }, 200, { id: 1 })
            await helpers.createArtist(req, { name: "Artist2" }, 200, { id: 2 })
            await helpers.createSong(req, { title: "MySong", artistIds: [1, 2] }, 200, { id: 1 })
        } finally {
            req.close();
            agent.close();
            done();
        }
    });
});

describe('POST /song with an existent and a nonexistent artist Id', () => {
    it('should fail', async done => {
        let agent = await init();
        let req = agent.keepOpen();
        try {
            await helpers.createArtist(req, { name: "Artist1" }, 200, { id: 1 })
            await helpers.createSong(req, { title: "MySong", artistIds: [1, 2] }, 400)
        } finally {
            req.close();
            agent.close();
            done();
        }
    });
});

describe('POST /song with tags', () => {
    it('should succeed', async done => {
        let agent = await init();
        let req = agent.keepOpen();
        try {
            await helpers.createTag(req, { name: "Root" }, 200, { id: 1 })
            await helpers.createTag(req, { name: "Leaf", parentId: 1 }, 200, { id: 2 })
            await helpers.createSong(req, { title: "Song", tagIds: [1, 2] }, 200, { id: 1 })
            await helpers.checkSong(req, 1, 200, { title: "Song", storeLinks: [], tagIds: [1, 2], albumIds: [], artistIds: [] })
        } finally {
            req.close();
            agent.close();
            done();
        }
    });
});