/**
 * Stage 4 — store / games / daily challenge API wiring and stale-response policy.
 */
import assert from 'node:assert/strict'
import test from 'node:test'
import { createPinia, setActivePinia } from 'pinia'
import { createMeFixture } from './fixtures/me.fixture'
import { installFetchMock, resetAppTestState, type MockResponse } from './helpers/fetchMock'

test.beforeEach(async () => {
  installFetchMock()
  await resetAppTestState()
  setActivePinia(createPinia())
  const { resetUserStores } = await import('../src/api/sync')
  resetUserStores()
})

test('store catalog loads products from GET /store/products', async () => {
  const products = [
    { id: 'castle', title: 'قلعه', price: 5000, category: 'special', emoji: '🏰' },
  ]
  globalThis.routeHandlers!.set('/store/products', () => ({ status: 200, body: products }))

  const { useStoreCatalogStore } = await import('../src/stores/storeCatalog')
  const store = useStoreCatalogStore()
  await store.loadProducts()
  assert.equal(store.loadStatus, 'ready')
  assert.equal(store.products.length, 1)
  assert.equal(store.products[0]?.id, 'castle')
})

test('store GET error surfaces retryable error state', async () => {
  globalThis.routeHandlers!.set('/store/products', () => ({
    status: 500,
    body: { error: 'خطای سرور' },
  }))

  const { useStoreCatalogStore } = await import('../src/stores/storeCatalog')
  const store = useStoreCatalogStore()
  await store.loadProducts()
  assert.equal(store.loadStatus, 'error')
  assert.ok(store.loadError)
})

test('successful purchase applies server me without optimistic coin change', async () => {
  const meBefore = createMeFixture({ coins: 1000 })
  const meAfter = createMeFixture({ coins: 500 })
  meAfter.progress.ownedItems = ['castle']

  const { applyMeResponse } = await import('../src/api/sync')
  const { useUserStore } = await import('../src/stores/user')
  const { useStoreCatalogStore } = await import('../src/stores/storeCatalog')

  applyMeResponse(meBefore)
  assert.equal(useUserStore().coins, 1000)

  globalThis.routeHandlers!.set('/store/purchases', () => ({
    status: 200,
    body: meAfter,
    delayMs: 15,
  }))

  const store = useStoreCatalogStore()
  const purchase = store.purchaseProduct('castle')
  assert.equal(useUserStore().coins, 1000)
  await purchase
  assert.equal(useUserStore().coins, 500)
  assert.ok(useUserStore().coins !== 1000)
})

test('failed purchase does not change coins', async () => {
  const me = createMeFixture({ coins: 200 })
  const { applyMeResponse } = await import('../src/api/sync')
  const { useUserStore } = await import('../src/stores/user')
  const { useStoreCatalogStore } = await import('../src/stores/storeCatalog')

  applyMeResponse(me)
  globalThis.routeHandlers!.set('/store/purchases', () => ({
    status: 400,
    body: { error: 'سکه کافی نداری!' },
  }))

  const store = useStoreCatalogStore()
  const { ApiClientError } = await import('../src/api/errors')
  await assert.rejects(store.purchaseProduct('castle'), ApiClientError)
  assert.equal(useUserStore().coins, 200)
})

test('stale store catalog GET after logout does not repopulate products', async () => {
  const { invalidateSession } = await import('../src/api/authSession')
  const { useStoreCatalogStore } = await import('../src/stores/storeCatalog')
  const { StaleSessionError } = await import('../src/api/errors')

  globalThis.routeHandlers!.set('/store/products', () => ({
    status: 200,
    body: [{ id: 'x', title: 'X', price: 1, category: 'boost', emoji: '⚡' }],
    delayMs: 30,
  }))

  const store = useStoreCatalogStore()
  const load = store.loadProducts()
  invalidateSession()
  await load
  assert.equal(store.products.length, 0)
  assert.equal(store.loadStatus, 'idle')
})

test('queued purchases apply in server order even when first HTTP response is slower', async () => {
  const me1 = createMeFixture({ coins: 100 })
  const me2 = createMeFixture({ coins: 250 })

  const { applyMeResponse, runMeMutation } = await import('../src/api/sync')
  const { useUserStore } = await import('../src/stores/user')

  applyMeResponse(createMeFixture({ coins: 50 }))

  let purchaseCall = 0
  globalThis.routeHandlers!.set('/store/purchases', () => {
    purchaseCall += 1
    if (purchaseCall === 1) {
      return { status: 200, body: me1, delayMs: 35 }
    }
    return { status: 200, body: me2 }
  })

  const { api } = await import('../src/api/client')

  await Promise.all([
    runMeMutation(() => api.purchaseProduct('castle')),
    runMeMutation(() => api.purchaseProduct('suit')),
  ])
  assert.equal(useUserStore().coins, 250)
})

test('games catalog load uses GET /games', async () => {
  globalThis.routeHandlers!.set('/games', () => ({
    status: 200,
    body: [
      {
        id: 'gold-guess',
        title: 'حدس',
        description: 'd',
        icon: '📈',
        color: '#000',
        route: '/games/gold-guess',
      },
    ],
  }))

  const { useGamesStore } = await import('../src/stores/games')
  const games = useGamesStore()
  await games.loadCatalog()
  assert.equal(games.catalogLoadStatus, 'ready')
  assert.equal(games.catalog[0]?.id, 'gold-guess')
})

test('daily challenge complete returns server feedback only after POST', async () => {
  const me = createMeFixture({ coins: 10 })
  const { applyMeResponse } = await import('../src/api/sync')
  applyMeResponse(me)

  globalThis.routeHandlers!.set('/challenges/daily', () => ({
    status: 200,
    body: {
      id: 'daily-challenge',
      question: 'Q?',
      coinReward: 50,
      xpReward: 30,
      completed: false,
      options: [{ id: 'gold', label: 'طلا', icon: '🥇', color: '#f5b62d' }],
    },
  }))

  globalThis.routeHandlers!.set('/challenges/daily/complete', () => ({
    status: 200,
    body: {
      ...me,
      user: { ...me.user, coins: 60 },
      feedback: 'بازخورد سرور',
      alreadyCompleted: false,
    },
  }))

  const { useDailyChallengeStore } = await import('../src/stores/dailyChallenge')
  const { useUserStore } = await import('../src/stores/user')
  const challenge = useDailyChallengeStore()
  await challenge.loadChallenge()
  const result = await challenge.completeOption('gold')
  assert.equal(result.feedback, 'بازخورد سرور')
  assert.equal(challenge.lastFeedback, 'بازخورد سرور')
  assert.equal(useUserStore().coins, 60)
})

declare global {
  // eslint-disable-next-line no-var
  var routeHandlers: Map<string, (init?: RequestInit) => MockResponse | Promise<MockResponse>>
}