/**
 * Shared registration/onboarding steps for specs that need a brand-new,
 * empty account rather than the shared demo workspace (`global-setup.ts`'s
 * seeded data) — e.g. because the gesture under test needs a clean
 * calendar, or because the demo user's own balance is deliberately drained
 * (see `backend/scripts/seed_demo.py`'s "near-drained FP pool" for Alex,
 * which a fresh drag-created period pinned to the logged-in parent would
 * otherwise fail to fund).
 *
 * Every date here is derived from "today", never a hardcoded year.
 */
import type { Page } from '@playwright/test'
import { expect } from '@playwright/test'
import { toIsoDate, addDays } from './dates'

export function uniqueEmail(tag: string): string {
  return `e2e-${tag}-${Date.now()}-${Math.random().toString(36).slice(2, 8)}@example.com`
}

export const ONBOARDING_PASSWORD = 'E2ePassOnboard123!'

/** Registers a brand-new account through the real UI and waits for the
 * onboarding wizard's first step. */
export async function registerAndReachOnboarding(page: Page, email: string, displayName: string): Promise<void> {
  await page.goto('/auth')
  await page.getByRole('button', { name: 'Skapa konto' }).click()
  await page.getByPlaceholder('Namn').fill(displayName)
  await page.getByTestId('auth-email').fill(email)
  await page.getByTestId('auth-password').fill(ONBOARDING_PASSWORD)
  await page.getByTestId('auth-submit').click()

  await expect(page.getByTestId('onboarding')).toBeVisible({ timeout: 15_000 })
  await expect(page.getByTestId('onboarding-step-child')).toBeVisible()
}

/** Step 1 of the wizard: add the child, landing on step 2 (family). */
export async function fillChildStep(page: Page, childName: string): Promise<void> {
  // Safely in the past relative to "today", regardless of when this runs.
  const birthDate = toIsoDate(addDays(new Date(), -400))
  await page.getByLabel('Barnets namn').fill(childName)
  await page.getByTestId('birth-date-input').fill(birthDate)
  await page.getByRole('button', { name: 'Lägg till barn' }).click()
  await expect(page.getByTestId('onboarding-step-family')).toBeVisible()
}

/** From step 2 (family) — "Bara jag" is selected by default, so this just
 * continues to step 3 (balances) and presses "Klar" without filling
 * anything in — landing on the Dashboard with the statutory-assumption
 * balance (no manual fetch, no drained pool). */
export async function continueSoloAndSkipBalances(page: Page): Promise<void> {
  await page.getByRole('button', { name: 'Fortsätt' }).click()
  await expect(page.getByTestId('onboarding-step-balances')).toBeVisible()
  await page.getByTestId('onboarding-finish').click()
  await expect(page.getByTestId('dashboard')).toBeVisible({ timeout: 15_000 })
}

/** From step 2 (family), selects "Vi är två föräldrar", fills in the other
 * parent's name and continues — landing on step 3 (balances) with both
 * parents' cards visible. */
export async function chooseTwoParents(page: Page, partnerName: string): Promise<void> {
  await page.getByTestId('onboarding-family-couple').click()
  await page.getByLabel('Den andra förälderns namn').fill(partnerName)
  await page.getByRole('button', { name: 'Fortsätt' }).click()
  await expect(page.getByTestId('onboarding-step-balances')).toBeVisible()
}

/** In step 3 (balances), opens "Ange själv" on the parent card matching
 * `name` and fills in + saves the three balance fields shown there. */
export async function enterBalancesFor(
  page: Page,
  name: string,
  balances: { sjukpenning: number; lagsta: number; dubbeldagar: number },
): Promise<void> {
  const card = page.getByTestId('onboarding-parent-card').filter({ hasText: name })
  await card.getByRole('button', { name: 'Ange själv' }).click()
  await page.getByLabel(/Sjukpenningnivå/).fill(String(balances.sjukpenning))
  await page.getByLabel(/Lägstanivå/).fill(String(balances.lagsta))
  await page.getByLabel(/Dubbeldagar/).fill(String(balances.dubbeldagar))
  await page.getByRole('button', { name: 'Spara' }).click()
}