import { describe, expect, it } from 'vitest'
import { fitContextMenuToViewport } from '../../../src/components/sftp/contextMenuPosition'

describe('fitContextMenuToViewport', () => {
  it('keeps the menu below/right of the click when there is room', () => {
    expect(fitContextMenuToViewport(100, 80, 180, 200, 1000, 800)).toEqual({
      left: 100,
      top: 80,
    })
  })

  it('flips above the click when near the bottom edge', () => {
    // Click near bottom; menu taller than remaining space → open upward.
    expect(fitContextMenuToViewport(200, 540, 180, 280, 1000, 600)).toEqual({
      left: 200,
      top: 260, // 540 - 280
    })
  })

  it('clamps into the viewport when flipped menu would still overflow', () => {
    expect(fitContextMenuToViewport(900, 540, 360, 400, 997, 592)).toEqual({
      left: 540, // 900 - 360 (flip left of click)
      top: 140, // 540 - 400 (flip above click), still within [8, 184]
    })
  })

  it('keeps an oversized menu inside the top-left margin', () => {
    expect(fitContextMenuToViewport(20, 20, 400, 600, 320, 480)).toEqual({
      left: 8,
      top: 8,
    })
  })

  it('flips left of the click when near the right edge', () => {
    expect(fitContextMenuToViewport(920, 100, 200, 120, 1000, 800)).toEqual({
      left: 720, // 920 - 200
      top: 100,
    })
  })
})