import { test, expect } from '@playwright/test'

const FAKE_TOKEN = 'fake-invite-token-for-e2e'
const FAKE_PREREG_ID = '000000000000000000000001'

async function mockVerifyOk(page, overrides = {}) {
  await page.route('**/api/invite/verify', async (route) => {
    await route.fulfill({
      status: 200,
      contentType: 'application/json',
      body: JSON.stringify({
        preRegistrationId: FAKE_PREREG_ID,
        name: overrides.name ?? 'Pre Registered User',
        email: overrides.email ?? `prereg-${Date.now()}@example.com`,
        city: overrides.city ?? 'Vancouver, BC',
      }),
    })
  })
}

async function mockAcceptFree(page) {
  await page.route('**/api/invite/accept', async (route) => {
    await route.fulfill({
      status: 200,
      contentType: 'application/json',
      body: JSON.stringify({
        success: true,
        requiresPayment: false,
        redirectUrl: '/member/dashboard',
        member: {
          id: 'mem-1',
          email: 'prereg@example.com',
          name: 'Pre Registered User',
          circle: 'community',
          contributionAmount: 0,
          status: 'active',
        },
      }),
    })
  })
  await page.route('**/api/auth/status', async (route) => {
    await route.fulfill({
      status: 200,
      contentType: 'application/json',
      body: JSON.stringify({
        authenticated: true,
        member: { id: 'mem-1', name: 'Pre Registered User', status: 'active' },
        status: 'active',
      }),
    })
  })
}

async function gotoAcceptInvite(page) {
  await page.goto(`/accept-invite#${FAKE_TOKEN}`)
}

test.describe('Accept Invite — pre-registrant signup', () => {
  test('verifies invitation and shows form fields', async ({ page }) => {
    await mockVerifyOk(page, { name: 'Ada Lovelace', email: 'ada@example.com' })
    await gotoAcceptInvite(page)

    await expect(page.locator('#accept-name')).toBeVisible()
    await expect(page.locator('#accept-name')).toHaveValue('Ada Lovelace')
    await expect(page.locator('#accept-email')).toHaveValue('ada@example.com')
    await expect(page.locator('#circle-community')).toBeAttached()
    await expect(page.locator('#circle-founder')).toBeAttached()
    await expect(page.locator('#circle-practitioner')).toBeAttached()
    await expect(page.locator('#accept-cadence-monthly')).toBeAttached()
    await expect(page.locator('#accept-cadence-annual')).toBeAttached()
    await expect(page.locator('#accept-contribution')).toBeVisible()
    await expect(page.locator('.contribution-preset-chip').first()).toBeVisible()
    await expect(page.locator('.form-submit')).toBeVisible()
  })

  test('shows error when no token in URL hash', async ({ page }) => {
    await page.goto('/accept-invite')
    await expect(page.getByRole('heading', { name: 'Invitation Error' })).toBeVisible()
    await expect(page.locator('.error-box')).toContainText(/No invitation token/)
  })

  test('shows error when token verification fails', async ({ page }) => {
    await page.route('**/api/invite/verify', async (route) => {
      await route.fulfill({
        status: 401,
        contentType: 'application/json',
        body: JSON.stringify({ statusCode: 401, statusMessage: 'Invalid or expired invitation link' }),
      })
    })
    await gotoAcceptInvite(page)
    await expect(page.getByRole('heading', { name: 'Invitation Error' })).toBeVisible()
    await expect(page.locator('.error-box')).toContainText(/Invalid or expired/)
  })

  test('submit disabled until name + agreement filled', async ({ page }) => {
    await mockVerifyOk(page, { name: '' })
    await gotoAcceptInvite(page)

    await expect(page.locator('#accept-name')).toBeVisible()
    await expect(page.locator('.form-submit')).toBeDisabled()

    await page.locator('#accept-name').fill('New Member')
    await expect(page.locator('.form-submit')).toBeDisabled()

    await page.getByRole('checkbox', { name: /Community Guidelines/ }).check()
    await expect(page.locator('.form-submit')).toBeEnabled()
  })

  test('cadence toggle updates billing summary total', async ({ page }) => {
    await mockVerifyOk(page)
    await gotoAcceptInvite(page)

    await expect(page.locator('#accept-contribution')).toBeVisible()
    await page.locator('#accept-contribution').fill('10')

    await page.locator('label[for="accept-cadence-monthly"]').click()
    await expect(page.locator('.billing-summary')).toContainText('$10 today')

    await page.locator('label[for="accept-cadence-annual"]').click()
    await expect(page.locator('.billing-summary')).toContainText('$120 today')
    await expect(page.locator('.billing-summary')).toContainText('$10/month')
  })

  test('preset chip sets contribution amount', async ({ page }) => {
    await mockVerifyOk(page)
    await gotoAcceptInvite(page)

    await expect(page.locator('.contribution-preset-chip').first()).toBeVisible()
    const chip = page.locator('.contribution-preset-chip').nth(1)
    const chipText = await chip.textContent()
    const expected = chipText.replace(/[^0-9]/g, '')

    await chip.click()
    await expect(page.locator('#accept-contribution')).toHaveValue(expected)
  })

  test('free tier happy path shows welcome state', async ({ page }) => {
    await mockVerifyOk(page, { name: 'Free Tester', email: `free-${Date.now()}@example.com` })
    await mockAcceptFree(page)
    await gotoAcceptInvite(page)

    await expect(page.locator('#accept-name')).toHaveValue('Free Tester')
    await page.locator('#circle-community').check({ force: true })
    await page.locator('#accept-contribution').fill('0')
    await page.getByRole('checkbox', { name: /Community Guidelines/ }).check()

    await expect(page.locator('.form-submit')).toBeEnabled()
    await expect(page.locator('.form-submit')).toContainText(/Accept Invitation/)

    await page.locator('.form-submit').click()

    await expect(
      page.getByRole('heading', { name: 'Welcome to Ghost Guild!' })
    ).toBeVisible({ timeout: 15000 })
  })

  test('paid tier submit button copy switches to Continue to Payment', async ({ page }) => {
    await mockVerifyOk(page)
    await gotoAcceptInvite(page)

    await page.locator('#accept-contribution').fill('10')
    await page.getByRole('checkbox', { name: /Community Guidelines/ }).check()
    await expect(page.locator('.form-submit')).toContainText(/Continue to Payment/)
  })

  // Skipped: full paid-tier submission requires intercepting HelcimPay.js modal
  // (external script loads an iframe and posts a message back to verifyPayment).
  // Feasible but out of scope for this initial coverage pass.
  test.skip('paid tier full flow with mocked HelcimPay', async () => {})
})