import * as path from 'path'
import { BrowserWindow, TouchBar } from 'electron'
import { closeWindow } from './window-helpers'
import { expect } from 'chai'

const { TouchBarButton, TouchBarColorPicker, TouchBarGroup, TouchBarLabel, TouchBarPopover, TouchBarScrubber, TouchBarSegmentedControl, TouchBarSlider, TouchBarSpacer } = TouchBar

describe('TouchBar module', () => {
  it('throws an error when created without an options object', () => {
    expect(() => {
      const touchBar = new (TouchBar as any)()
      touchBar.toString()
    }).to.throw('Must specify options object as first argument')
  })

  it('throws an error when created with invalid items', () => {
    expect(() => {
      const touchBar = new TouchBar({ items: [1, true, {}, []] as any })
      touchBar.toString()
    }).to.throw('Each item must be an instance of TouchBarItem')
  })

  it('throws an error when an invalid escape item is set', () => {
    expect(() => {
      const touchBar = new TouchBar({ items: [], escapeItem: 'esc' as any })
      touchBar.toString()
    }).to.throw('Escape item must be an instance of TouchBarItem')

    expect(() => {
      const touchBar = new TouchBar({ items: [] })
      touchBar.escapeItem = 'esc' as any
    }).to.throw('Escape item must be an instance of TouchBarItem')
  })

  it('throws an error if the same TouchBarItem is added multiple times', () => {
    expect(() => {
      const item = new TouchBarLabel({ label: 'Label' })
      const touchBar = new TouchBar({ items: [item, item] })
      touchBar.toString()
    }).to.throw('Cannot add a single instance of TouchBarItem multiple times in a TouchBar')
  })

  describe('BrowserWindow behavior', () => {
    let window: BrowserWindow

    beforeEach(() => {
      window = new BrowserWindow({show: false})
    })

    afterEach(async () => {
      window.setTouchBar(null)
      await closeWindow(window)
      window = null as unknown as BrowserWindow
    })

    it('can be added to and removed from a window', () => {
      const label = new TouchBarLabel({ label: 'bar' })
      const touchBar = new TouchBar({ items: [
        new TouchBarButton({ label: 'foo', backgroundColor: '#F00', click: () => {} }),
        new TouchBarButton({
          icon: path.join(__dirname, 'fixtures', 'assets', 'logo.png'),
          iconPosition: 'right',
          click: () => {}
        }),
        new TouchBarColorPicker({ selectedColor: '#F00', change: () => {} }),
        new TouchBarGroup({ items: new TouchBar({ items: [new TouchBarLabel({ label: 'hello' })] }) }),
        label,
        new TouchBarPopover({ items: new TouchBar({ items: [new TouchBarButton({ label: 'pop' })] }) }),
        new TouchBarSlider({ label: 'slide', value: 5, minValue: 2, maxValue: 75, change: () => {} }),
        new TouchBarSpacer({ size: 'large' }),
        new TouchBarSegmentedControl({
          segmentStyle: 'capsule',
          segments: [{ label: 'baz', enabled: false }],
          selectedIndex: 5
        }),
        new TouchBarSegmentedControl({ segments: [] }),
        new TouchBarScrubber({
          items: [{ label: 'foo' }, { label: 'bar' }, { label: 'baz' }],
          selectedStyle: 'outline',
          mode: 'fixed',
          showArrowButtons: true
        })
      ]})
      const escapeButton = new TouchBarButton({ label: 'foo' })
      window.setTouchBar(touchBar)
      touchBar.escapeItem = escapeButton
      label.label = 'baz'
      escapeButton.label = 'hello'
      window.setTouchBar(null)
      window.setTouchBar(new TouchBar({items: [new TouchBarLabel({ label: 'two' })]}))
      touchBar.escapeItem = null
    })

    it('calls the callback on the items when a window interaction event fires', (done) => {
      const button = new TouchBarButton({
        label: 'bar',
        click: () => {
          done()
        }
      })
      const touchBar = new TouchBar({ items: [button] })
      window.setTouchBar(touchBar)
      window.emit('-touch-bar-interaction', {}, (button as any).id)
    })

    it('calls the callback on the escape item when a window interaction event fires', (done) => {
      const button = new TouchBarButton({
        label: 'bar',
        click: () => {
          done()
        }
      })
      const touchBar = new TouchBar({ escapeItem: button })
      window.setTouchBar(touchBar)
      window.emit('-touch-bar-interaction', {}, (button as any).id)
    })
  })
})
