import { describe, expect, it } from 'vitest'
import { buildApp } from '../src/app.js'
import { loadConfig } from '../src/config.js'
import { createWebauthnCredential } from '@authportal/db'

async function buildTestApp() {
  const config = loadConfig({
    ...process.env,
    JWT_SECRET: 'test-secret-at-least-8',
    ADMIN_EMAIL: 'admin@test.local',
    ADMIN_PASSWORD: 'adminpass',
    DATABASE_URL: 'sqlite::memory:',
    ISSUER: 'https://auth.test.local',
    NODE_ENV: 'test',
  })
  return buildApp({ config, databaseUrl: 'sqlite::memory:' })
}

async function adminToken(app: Awaited<ReturnType<typeof buildTestApp>>) {
  const login = await app.inject({
    method: 'POST',
    url: '/api/v1/auth/login',
    payload: { email: 'admin@test.local', password: 'adminpass' },
  })
  expect(login.statusCode).toBe(200)
  return (login.json() as { access_token: string }).access_token
}

describe('webauthn / passkeys', () => {
  it('exposes webauthn flag on auth config', async () => {
    const app = await buildTestApp()
    const res = await app.inject({ method: 'GET', url: '/api/v1/auth/config' })
    expect(res.statusCode).toBe(200)
    expect(res.json()).toMatchObject({ webauthn: true })
    expect(app.config.webauthnRpID).toBe('auth.test.local')
    expect(app.config.webauthnOrigins).toContain('https://auth.test.local')
    expect(app.config.webauthnOrigins).toContain('http://localhost:5173')
    await app.close()
  })

  it('requires JWT for register options', async () => {
    const app = await buildTestApp()
    const denied = await app.inject({
      method: 'POST',
      url: '/api/v1/webauthn/register/options',
    })
    expect(denied.statusCode).toBe(401)

    const token = await adminToken(app)
    const ok = await app.inject({
      method: 'POST',
      url: '/api/v1/webauthn/register/options',
      headers: { authorization: `Bearer ${token}` },
    })
    expect(ok.statusCode).toBe(200)
    const body = ok.json() as {
      challenge_id: string
      options: { challenge: string; rp: { id: string } }
    }
    expect(body.challenge_id).toBeTruthy()
    expect(body.options.challenge).toBeTruthy()
    expect(body.options.rp.id).toBe('auth.test.local')
    await app.close()
  })

  it('allows public login options and rejects a bogus assertion', async () => {
    const app = await buildTestApp()
    const options = await app.inject({
      method: 'POST',
      url: '/api/v1/webauthn/login/options',
    })
    expect(options.statusCode).toBe(200)
    const body = options.json() as { challenge_id: string; options: unknown }
    expect(body.challenge_id).toBeTruthy()

    const login = await app.inject({
      method: 'POST',
      url: '/api/v1/webauthn/login',
      payload: {
        challenge_id: body.challenge_id,
        response: { id: 'not-a-credential', type: 'public-key' },
      },
    })
    expect(login.statusCode).toBe(401)
    await app.close()
  })

  it('lists, deletes own credentials and reports passkey_count', async () => {
    const app = await buildTestApp()
    const token = await adminToken(app)
    const me = await app.inject({
      method: 'GET',
      url: '/api/v1/auth/me',
      headers: { authorization: `Bearer ${token}` },
    })
    const userId = (me.json() as { id: string }).id

    createWebauthnCredential(app.db, {
      userId,
      credentialId: 'dGVzdC1jcmVkLWlk',
      publicKey: 'dGVzdC1wdWJrZXk',
      counter: 0,
      name: 'Test key',
    })

    const listed = await app.inject({
      method: 'GET',
      url: '/api/v1/webauthn/credentials',
      headers: { authorization: `Bearer ${token}` },
    })
    expect(listed.statusCode).toBe(200)
    const creds = listed.json() as { id: string; name: string }[]
    expect(creds).toHaveLength(1)
    expect(creds[0]?.name).toBe('Test key')

    const users = await app.inject({
      method: 'GET',
      url: '/api/v1/admin/users',
      headers: { authorization: `Bearer ${token}` },
    })
    const admin = (
      users.json() as { email: string; passkey_count: number }[]
    ).find((u) => u.email === 'admin@test.local')
    expect(admin?.passkey_count).toBe(1)

    const renamed = await app.inject({
      method: 'PATCH',
      url: `/api/v1/webauthn/credentials/${creds[0]!.id}`,
      headers: { authorization: `Bearer ${token}` },
      payload: { name: 'Laptop' },
    })
    expect(renamed.statusCode).toBe(200)
    expect((renamed.json() as { name: string }).name).toBe('Laptop')

    const deleted = await app.inject({
      method: 'DELETE',
      url: `/api/v1/webauthn/credentials/${creds[0]!.id}`,
      headers: { authorization: `Bearer ${token}` },
    })
    expect(deleted.statusCode).toBe(200)

    const empty = await app.inject({
      method: 'GET',
      url: '/api/v1/webauthn/credentials',
      headers: { authorization: `Bearer ${token}` },
    })
    expect(empty.json()).toEqual([])
    await app.close()
  })

  it('lets admin reset a user passkeys', async () => {
    const app = await buildTestApp()
    const token = await adminToken(app)
    const me = await app.inject({
      method: 'GET',
      url: '/api/v1/auth/me',
      headers: { authorization: `Bearer ${token}` },
    })
    const userId = (me.json() as { id: string }).id
    createWebauthnCredential(app.db, {
      userId,
      credentialId: 'cmVzZXQta2V5',
      publicKey: 'cHVia2V5',
      counter: 1,
      name: 'To reset',
    })

    const reset = await app.inject({
      method: 'DELETE',
      url: `/api/v1/admin/users/${userId}/passkeys`,
      headers: { authorization: `Bearer ${token}` },
    })
    expect(reset.statusCode).toBe(200)
    expect(reset.json()).toMatchObject({ ok: true, removed: 1 })

    const listed = await app.inject({
      method: 'GET',
      url: '/api/v1/webauthn/credentials',
      headers: { authorization: `Bearer ${token}` },
    })
    expect(listed.json()).toEqual([])
    await app.close()
  })
})