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import { expect } from 'chai';
import cheerio from 'cheerio';
import path from 'path';
import { loadFixture } from './test-utils.js';

describe('Scripts (hoisted and not)', () => {
  let fixture;

  before(async () => {
    fixture = await loadFixture({ projectRoot: './fixtures/astro-scripts/' });
    await fixture.build();
  });

  it('Moves external scripts up', async () => {
    const html = await fixture.readFile('/external/index.html');
    const $ = cheerio.load(html);

    expect($('head script[type="module"]:not([src="/regular_script.js"])')).to.have.lengthOf(1);
    expect($('body script')).to.have.lengthOf(0);
  });

  it('Moves inline scripts up', async () => {
    const html = await fixture.readFile('/inline/index.html');
    const $ = cheerio.load(html);

    expect($('head script[type="module"]')).to.have.lengthOf(1);
    expect($('body script')).to.have.lengthOf(0);
  });

  it('Inline page builds the scripts to a single bundle', async () => {
    // Inline page
    let inline = await fixture.readFile('/inline/index.html');
    let $ = cheerio.load(inline);

    // test 1: Just one entry module
    expect($('script')).to.have.lengthOf(1);

    // test 2: attr removed
    expect($('script').attr('data-astro')).to.equal(undefined);

    let entryURL = path.join('inline', $('script').attr('src'));
    let inlineEntryJS = await fixture.readFile(entryURL);

    // test 3: the JS exists
    expect(inlineEntryJS).to.be.ok;
  });

  it('External page builds the hoisted scripts to a single bundle', async () => {
    let external = await fixture.readFile('/external/index.html');
    let $ = cheerio.load(external);

    // test 1: there are two scripts
    expect($('script')).to.have.lengthOf(2);

    let el = $('script').get(1);
    let entryURL = path.join('external', $(el).attr('src'));
    let externalEntryJS = await fixture.readFile(entryURL);

    // test 2: the JS exists
    expect(externalEntryJS).to.be.ok;
  });

  it('External page using non-hoist scripts that are modules are built standalone', async () => {
    let external = await fixture.readFile('/external-no-hoist/index.html');
    let $ = cheerio.load(external);

    // test 1: there is 1 scripts
    expect($('script')).to.have.lengthOf(1);

    // test 2: inside assets
    let entryURL = $('script').attr('src');
    expect(entryURL.includes('assets/')).to.equal(true);
  });

  it('External page using non-hoist scripts that are not modules are built standalone', async () => {
    let external = await fixture.readFile('/external-no-hoist-classic/index.html');
    let $ = cheerio.load(external);

    // test 1: there is 1 scripts
    expect($('script')).to.have.lengthOf(1);

    // test 2: inside assets
    let entryURL = $('script').attr('src');
    expect(entryURL.includes('assets/')).to.equal(true);
  });
});