import { describe, it, expect, beforeAll, beforeEach, afterAll, vi } from 'vitest'

// The public app pulls in the websocket plugin which opens real WS upgrades on
// requests — out of scope for HTTP route tests. Mock it to a no-op.
vi.mock('../../src/plugins/websocket.js', () => ({
  sendToUser: vi.fn(() => false),
  sendToSessionParticipant: vi.fn(() => false),
  registerWebSocketPlugin: vi.fn(async () => {}),
  registerWebSocketRoute: vi.fn(),
  isUserOnlineWs: vi.fn(() => false),
  getSessionConnections: vi.fn(() => ({})),
}))

vi.mock('../../src/services/notification.service.js', () => ({
  sendPushNotification: vi.fn(async () => true),
  registerDeviceToken: vi.fn(async () => {}),
}))

const { buildPublic } = await import('../helpers/server.js')
const { resetDb, resetAppConfig, db } = await import('../helpers/db.js')
const { createCustomer } = await import('../helpers/fixtures.js')
const { customerJwt, authHeader } = await import('../helpers/jwt.js')
const { PaymentSessionStatus } = await import('../../src/constants.js')

describe('POST /api/client/payment-sessions', () => {
  let app
  let customer
  let token

  beforeAll(async () => {
    await resetAppConfig()
    app = await buildPublic()
  })

  beforeEach(async () => {
    await resetDb()
    customer = await createCustomer({ callName: 'PaymentTester' })
    token = customerJwt(customer.id)
  })

  afterAll(async () => {
    await app?.close()
  })

  it('happy path returns 201 + a pending payment-session row', async () => {
    const res = await app.inject({
      method: 'POST',
      url: '/api/client/payment-sessions',
      headers: authHeader(token),
      payload: { duration_minutes: 15 },
    })

    expect(res.statusCode).toBe(201)
    const body = res.json()
    expect(body.success).toBe(true)
    expect(body.data.status).toBe(PaymentSessionStatus.PENDING)
    expect(body.data.duration_minutes).toBe(15)
    // Default tier for 15min from migrate.js is 30000 — but the eligibility logic
    // also needs `free_trial_enabled` to be true (default) AND no prior tx. Customer is
    // brand-new so they get the trial → amount=0, is_free_trial=true. Verify accordingly.
    expect(body.data.is_free_trial).toBe(true)
    expect(body.data.amount).toBe(0)
    expect(body.data.is_extension).toBe(false)

    // Verify persistence
    const sql = db()
    const [row] = await sql`SELECT * FROM payment_sessions WHERE id = ${body.data.id}`
    expect(row).toBeDefined()
    expect(row.customer_id).toBe(customer.id)
  })

  it('POST /:id/confirm transitions the row and returns 200', async () => {
    // Create a paid (non-trial) tier so the row has a non-zero amount and we exercise the
    // confirm path with a "real" payment. Insert a transaction first so the customer is
    // ineligible for the free trial.
    const sql = db()
    // Bootstrap: create a fake prior chat session + transaction so the customer is no
    // longer eligible for the free trial. (The simpler alternative — flipping
    // free_trial_enabled in app_config — would impact other tests.)
    const [prior] = await sql`
      INSERT INTO chat_sessions (customer_id, status, duration_minutes, price)
      VALUES (${customer.id}, 'completed', 15, 30000)
      RETURNING id
    `
    await sql`
      INSERT INTO customer_transactions (customer_id, session_id, type, amount)
      VALUES (${customer.id}, ${prior.id}, 'paid', 30000)
    `

    const createRes = await app.inject({
      method: 'POST',
      url: '/api/client/payment-sessions',
      headers: authHeader(token),
      payload: { duration_minutes: 15 },
    })
    expect(createRes.statusCode).toBe(201)
    const created = createRes.json().data
    expect(created.status).toBe(PaymentSessionStatus.PENDING)
    expect(created.is_free_trial).toBe(false)
    expect(created.amount).toBe(30000)

    const confirmRes = await app.inject({
      method: 'POST',
      url: `/api/client/payment-sessions/${created.id}/confirm`,
      headers: authHeader(token),
      payload: {},
    })

    expect(confirmRes.statusCode).toBe(200)
    const confirmed = confirmRes.json().data
    expect(confirmed.id).toBe(created.id)
    expect(confirmed.status).toBe(PaymentSessionStatus.CONFIRMED)
    expect(confirmed.confirmed_at).toBeTruthy()
  })
})