import React from 'react'
import { hydrateRoot } from 'react-dom/client'
import { act, render, screen } from '@testing-library/react'
import { renderToString } from 'react-dom/server'
import { afterEach, describe, expect, it } from 'vitest'
import XPProgressBar from './XPProgressBar'
import { formatProfileNumber } from '../../lib/profileFormatters'

const fixture = {
  xp: 3024,
  currentLevelXp: 2000,
  nextLevelXp: 5000,
  progressPercent: 34,
}

describe('XPProgressBar locale-stable formatting', () => {
  afterEach(() => {
    document.body.innerHTML = ''
  })

  it.each([
    [0, '0'],
    [1, '1'],
    [999, '999'],
    [1000, '1,000'],
    [3024, '3,024'],
    [1000000, '1,000,000'],
    [9529106, '9,529,106'],
  ])('formats %s as %s', (value, expected) => {
    expect(formatProfileNumber(value)).toBe(expected)
  })

  it('renders the non-zero production-shaped XP value', () => {
    render(<XPProgressBar {...fixture} />)

    expect(screen.getByText('3,024 XP')).toBeTruthy()
    expect(screen.getByText('2,000 / 5,000 XP')).toBeTruthy()
  })

  it('keeps XP zero formatting stable', () => {
    render(<XPProgressBar xp={0} currentLevelXp={0} nextLevelXp={100} progressPercent={0} />)

    expect(screen.getByText('0 XP')).toBeTruthy()
    expect(screen.getByText('0 / 100 XP')).toBeTruthy()
  })

  it('hydrates the same SSR markup without recoverable errors', async () => {
    const container = document.createElement('div')
    container.innerHTML = renderToString(<XPProgressBar {...fixture} />)
    document.body.appendChild(container)
    const recoverableErrors = []
    const root = hydrateRoot(container, <XPProgressBar {...fixture} />, {
      onRecoverableError: (error) => recoverableErrors.push(error),
    })

    await act(async () => {
      await new Promise((resolve) => setTimeout(resolve, 0))
    })

    expect(recoverableErrors).toHaveLength(0)
    expect(container.textContent).toContain('3,024 XP')
    expect(container.textContent).toContain('2,000 / 5,000 XP')
    await act(async () => root.unmount())
  })
})