const express = require('express');
const lanthan = require('lanthan');
const path = require('path');
const assert = require('assert');
const eventually = require('./eventually');
const settings = require('./settings');
const Console = require('./lib/Console');

const Key = lanthan.Key;

const newApp = () => {

  let app = express();
  app.get('/*', (req, res) => {
    res.send(`<!DOCTYPEhtml>
<html lang="en">
  <head>
    <title>title_${req.path.slice(1)}</title>
  </head>
  <body><h1>home</h1></body>
</html">`);
  });
  return app;
};

describe("completion on buffer/bdelete/bdeletes", () => {
  const port = 12321;
  let http;
  let firefox;
  let session;
  let browser;
  let body;

  before(async() => {
    firefox = await lanthan.firefox({
      spy: path.join(__dirname, '..'),
      builderf: (builder) => {
        builder.addFile('build/settings.js');
      },
    });
    session = firefox.session;
    browser = firefox.browser;
    http = newApp().listen(port);

    await browser.storage.local.set({
      settings,
    });
  });

  after(async() => {
    http.close();
    if (firefox) {
      await firefox.close();
    }
  });

  beforeEach(async() => {
    let tabs = await browser.tabs.query({});
    for (let tab of tabs.slice(1)) {
      await browser.tabs.remove(tab.id);
    }

    await browser.tabs.update(tabs[0].id, { url: `http://127.0.0.1:${port}/site1`, pinned: true });
    await browser.tabs.create({ url: `http://127.0.0.1:${port}/site2`, pinned: true })
    for (let i = 3; i <= 5; ++i) {
      await browser.tabs.create({ url: `http://127.0.0.1:${port}/site${i}` })
    }

    await eventually(async() => {
      let handles = await session.getWindowHandles();
      assert.equal(handles.length, 5);
      await session.switchToWindow(handles[2]);
      await session.findElementByCSS('iframe');
    });
    body = await session.findElementByCSS('body');

    await new Promise((resolve) => setTimeout(resolve, 100));
  });

  it('should all tabs by "buffer" command with empty params', async() => {
    await body.sendKeys(':');

    await session.switchToFrame(0);
    let c = new Console(session);
    await c.sendKeys('buffer ');

    await eventually(async() => {
      let items = await c.getCompletions();
      assert.equal(items.length, 6);
      assert.deepEqual(items[0], { type: 'title', text: 'Buffers' });
      assert(items[1].text.startsWith('1:'));
      assert(items[2].text.startsWith('2:'));
      assert(items[3].text.startsWith('3:'));
      assert(items[4].text.startsWith('4:'));
      assert(items[5].text.startsWith('5:'));

      assert(items[3].text.includes('%'));
      assert(items[5].text.includes('#'));
    });
  })

  it('should filter items with URLs by keywords on "buffer" command', async() => {
    await body.sendKeys(':');

    await session.switchToFrame(0);
    let c = new Console(session);
    await c.sendKeys('buffer title_site2');

    await eventually(async() => {
      let items = await c.getCompletions();
      assert.deepEqual(items[0], { type: 'title', text: 'Buffers' });
      assert(items[1].text.startsWith('2:'));
      assert(items[1].text.includes('title_site2'));
      assert(items[1].text.includes(`http://127.0.0.1:${port}/site2`));
    });
  })

  it('should filter items with titles by keywords on "buffer" command', async() => {
    await body.sendKeys(':');

    await session.switchToFrame(0);
    let c = new Console(session);
    await c.sendKeys('buffer /site2');

    await eventually(async() => {
      let items = await c.getCompletions();
      assert.deepEqual(items[0], { type: 'title', text: 'Buffers' });
      assert(items[1].text.startsWith('2:'));
    });
  })

  it('should show one item by number on "buffer" command', async() => {
    await body.sendKeys(':');

    await session.switchToFrame(0);
    let c = new Console(session);
    await c.sendKeys('buffer 2');

    await eventually(async() => {
      let items = await c.getCompletions();
      assert.equal(items.length, 2);
      assert.deepEqual(items[0], { type: 'title', text: 'Buffers' });
      assert(items[1].text.startsWith('2:'));
    });
  })

  it('should show unpinned tabs "bdelete" command', async() => {
    await body.sendKeys(':');

    await session.switchToFrame(0);
    let c = new Console(session);
    await c.sendKeys('bdelete site');

    await eventually(async() => {
      let items = await c.getCompletions();
      assert.equal(items.length, 4);
      assert(items[1].text.includes('site3'));
      assert(items[2].text.includes('site4'));
      assert(items[3].text.includes('site5'));
    });
  })

  it('should show unpinned tabs "bdeletes" command', async() => {
    await body.sendKeys(':');

    await session.switchToFrame(0);
    let c = new Console(session);
    await c.sendKeys('bdelete site');

    await eventually(async() => {
      let items = await c.getCompletions();
      assert.equal(items.length, 4);
      assert(items[1].text.includes('site3'));
      assert(items[2].text.includes('site4'));
      assert(items[3].text.includes('site5'));
    });
  })

  it('should show both pinned and unpinned tabs "bdelete!" command', async() => {
    await body.sendKeys(':');

    await session.switchToFrame(0);
    let c = new Console(session);
    await c.sendKeys('bdelete! site');

    await eventually(async() => {
      let items = await c.getCompletions();
      assert.equal(items.length, 6);
      assert(items[1].text.includes('site1'));
      assert(items[2].text.includes('site2'));
      assert(items[3].text.includes('site3'));
      assert(items[4].text.includes('site4'));
      assert(items[5].text.includes('site5'));
    });
  })

  it('should show both pinned and unpinned tabs "bdeletes!" command', async() => {
    await body.sendKeys(':');

    await session.switchToFrame(0);
    let c = new Console(session);
    await c.sendKeys('bdeletes! site');

    await eventually(async() => {
      let items = await c.getCompletions();
      assert.equal(items.length, 6);
      assert(items[1].text.includes('site1'));
      assert(items[2].text.includes('site2'));
      assert(items[3].text.includes('site3'));
      assert(items[4].text.includes('site4'));
      assert(items[5].text.includes('site5'));
    });
  })
});