// spec: e2e/plans/task-activated.plan.md

import { test, expect, type APIRequestContext, type Locator, type Page } from '@playwright/test'

const CHILD_NAME = 'ActivateRewardChild'
const REWARD_NAME = 'TriggerTestReward'
const REWARD_HELPER_NAME = 'TriggerRewardHelper'
const REWARD_COST = 20

async function createChild(request: APIRequestContext, name: string): Promise<string> {
  const pre = await request.get('/api/child/list')
  for (const c of (await pre.json()).children ?? []) {
    if (c.name === name) await request.delete(`/api/child/${c.id}`)
  }
  await request.put('/api/child/add', { data: { name, age: 8 } })
  const list = await request.get('/api/child/list')
  return (await list.json()).children?.find((c: any) => c.name === name)?.id ?? ''
}

async function createReward(
  request: APIRequestContext,
  name: string,
  cost: number,
): Promise<string> {
  const pre = await request.get('/api/reward/list')
  for (const r of (await pre.json()).rewards ?? []) {
    if (r.name === name) await request.delete(`/api/reward/${r.id}`)
  }
  await request.put('/api/reward/add', { data: { name, description: 'E2E test reward', cost } })
  const list = await request.get('/api/reward/list')
  return (await list.json()).rewards?.find((r: any) => r.name === name)?.id ?? ''
}

async function getPoints(page: Page): Promise<number> {
  const text = await page.locator('.points .value').textContent()
  return parseInt(text?.trim() ?? '0', 10)
}

async function activateItem(itemCard: Locator): Promise<void> {
  await itemCard.click()
  await expect(itemCard).toHaveClass(/item-ready/, { timeout: 3000 })
  await itemCard.click()
}

function rewardSection(page: Page): Locator {
  return page.locator('.child-list-container').filter({
    has: page.locator('h3', { hasText: 'Rewards' }),
  })
}

test.describe('Reward redemption', () => {
  test.describe.configure({ mode: 'serial' })

  let childId = ''
  let rewardId = ''
  let rewardHelperId = ''

  test.beforeAll(async ({ request }) => {
    childId = await createChild(request, CHILD_NAME)
    rewardId = await createReward(request, REWARD_NAME, REWARD_COST)
    rewardHelperId = await createReward(request, REWARD_HELPER_NAME, REWARD_COST)
    await request.put(`/api/child/${childId}/set-rewards`, {
      data: { reward_ids: [rewardId, rewardHelperId] },
    })
  })

  test.afterAll(async ({ request }) => {
    if (childId) await request.delete(`/api/child/${childId}`)
    if (rewardId) await request.delete(`/api/reward/${rewardId}`)
    if (rewardHelperId) await request.delete(`/api/reward/${rewardHelperId}`)
  })

  test('Locked reward shows correct points needed text', async ({ page }) => {
    // Child starts at 0 pts; reward costs 20 → "20 more points"
    await page.goto(`/parent/${childId}`)
    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
    await card.waitFor({ state: 'visible' })

    await expect(card.getByText(`${REWARD_COST} more points`)).toBeVisible()
    await expect(card.getByText('REWARD READY')).not.toBeVisible()
  })

  test('Clicking a locked reward does not open confirmation dialog', async ({ page }) => {
    await page.goto(`/parent/${childId}`)
    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
    await card.waitFor({ state: 'visible' })

    // Two-click on locked reward
    await card.click()
    await expect(card).toHaveClass(/item-ready/, { timeout: 3000 })
    await card.click()

    // triggerReward returns early when points_needed > 0 — no dialog
    await expect(page.locator('.points .value')).toHaveText('0')
    await expect(page.getByRole('button', { name: 'Yes' })).not.toBeVisible()
  })

  test('Reward shows REWARD READY when child has sufficient points', async ({ page, request }) => {
    // Set child points to match reward cost
    await request.put(`/api/child/${childId}/edit`, { data: { points: REWARD_COST } })

    await page.goto(`/parent/${childId}`)
    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
    await card.waitFor({ state: 'visible' })

    await expect(card.getByText('REWARD READY')).toBeVisible()
    await expect(card.getByText(/more points/)).not.toBeVisible()
  })

  test('Edit button appears on first click of a ready reward', async ({ page }) => {
    // Child has REWARD_COST pts (set in previous test)
    await page.goto(`/parent/${childId}`)
    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
    await card.waitFor({ state: 'visible' })

    // Initially hidden
    await expect(card.getByTitle('Edit custom value')).not.toBeVisible()

    // First click: item enters ready state, edit button becomes visible
    await card.click()
    await expect(card).toHaveClass(/item-ready/, { timeout: 3000 })
    await expect(card.getByTitle('Edit custom value')).toBeVisible()
  })

  test('Edit button disappears when clicking a different reward card', async ({ page }) => {
    // Child has REWARD_COST pts (set in previous test); both rewards show REWARD READY
    await page.goto(`/parent/${childId}`)
    const section = rewardSection(page)
    const card = section.locator('.item-card').filter({ hasText: REWARD_NAME })
    const helperCard = section.locator('.item-card').filter({ hasText: REWARD_HELPER_NAME })
    await card.waitFor({ state: 'visible' })
    await helperCard.waitFor({ state: 'visible' })

    // First click on target card — edit button appears
    await card.click()
    await expect(card).toHaveClass(/item-ready/, { timeout: 3000 })
    await expect(card.getByTitle('Edit custom value')).toBeVisible()

    // Click on a different reward card — target's edit button disappears
    await helperCard.click()
    await expect(card.getByTitle('Edit custom value')).not.toBeVisible()
  })

  test('Cancel reward redemption — points not deducted', async ({ page }) => {
    // Child has REWARD_COST pts (from two tests ago; edit button test did not consume them)
    await page.goto(`/parent/${childId}`)
    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
    await card.waitFor({ state: 'visible' })

    await expect(card.getByText('REWARD READY')).toBeVisible()
    const before = await getPoints(page)

    await activateItem(card)
    await expect(page.getByRole('button', { name: 'Yes' })).toBeVisible()
    await page.getByRole('button', { name: 'Cancel' }).click()

    await expect(page.getByRole('button', { name: 'Yes' })).not.toBeVisible()
    await expect(page.locator('.points .value')).toHaveText(String(before))
    await expect(card.getByText('REWARD READY')).toBeVisible()
  })

  test('Confirm reward redemption — points deducted and reward locks again', async ({ page }) => {
    // Child still has REWARD_COST pts after the cancelled redemption
    await page.goto(`/parent/${childId}`)
    const card = rewardSection(page).locator('.item-card').filter({ hasText: REWARD_NAME })
    await card.waitFor({ state: 'visible' })

    await expect(card.getByText('REWARD READY')).toBeVisible()
    const before = await getPoints(page)

    await activateItem(card)
    await expect(page.getByRole('button', { name: 'Yes' })).toBeVisible()
    await page.getByRole('button', { name: 'Yes' }).click()

    // Points reduced by reward cost
    await expect(page.locator('.points .value')).toHaveText(String(before - REWARD_COST))
    // Reward is now locked again — shows points needed
    await expect(card.getByText(`${REWARD_COST} more points`)).toBeVisible()
    await expect(card.getByText('REWARD READY')).not.toBeVisible()
  })
})