// Point the DB at a closed port BEFORE requiring the controller (its models build
// the pool). Every collaborator is monkeypatched, so no query runs.
process.env.DB_HOST = '127.0.0.1'
process.env.DB_PORT = '59999'

const { test, after, beforeEach, afterEach } = require('node:test')
const assert = require('node:assert/strict')

// Unit-test the trusted-device + recovery-code additions to the web auth flow:
//   - a TOTP user on a trusted device (bound to THEM) skips the second factor;
//   - a trust token bound to a DIFFERENT user is ignored (challenge as usual);
//   - loginTotp accepts a single-use recovery code as an alternative second factor;
//   - trustDevice sets the trust cookie under the cap, and surfaces a
//     { trustLimitReached, devices } prompt (session still issued) at the cap.
const ctrl = require('../src/router/v1/auth/auth.controller')
const users = require('../src/model/users/users.model')
const activity = require('../src/model/activity/activity.model')
const sessionService = require('../src/auth/session.service')
const trustedDevices = require('../src/model/trustedDevices/trustedDevices.model')
const recoveryCodes = require('../src/model/recoveryCodes/recoveryCodes.model')
const totp = require('../src/utils/totp')
const botScore = require('../src/middleware/botScore')
const loginProtection = require('../src/middleware/loginProtection')
const db = require('../src/utils/db')

after(() => db.close())

function mockRes() {
  return {
    statusCode: 200,
    body: null,
    cookies: {},
    status(c) { this.statusCode = c; return this },
    json(b) { this.body = b; return this },
    cookie(name, val) { this.cookies[name] = val; return this },
    clearCookie(name) { this.cookies[name] = undefined; return this },
  }
}

let sessionsCreated
const orig = {}
beforeEach(() => {
  sessionsCreated = []
  for (const [mod, name] of [
    [users, 'getRawByUsername'], [users, 'validatePassword'], [users, 'recordLogin'], [users, 'getRawById'],
    [activity, 'log'],
    [sessionService, 'createSession'], [sessionService, 'createPartialSession'], [sessionService, 'upgradeSessionAfterTotp'],
    [sessionService, 'resolveTrustedDevice'], [sessionService, 'honorTrustedDevice'],
    [sessionService, 'trustDeviceCapReached'], [sessionService, 'mintTrustToken'], [sessionService, 'sessionMeta'],
    [trustedDevices, 'store'], [trustedDevices, 'listActiveForUser'],
    [recoveryCodes, 'consumeForUser'],
    [totp, 'verifyCode'],
    [botScore, 'recordLoginFailure'], [loginProtection, 'recordFailure'], [loginProtection, 'recordSuccess'],
  ]) {
    orig[name] = orig[name] || { mod, val: mod[name] }
  }
  users.recordLogin = async () => {}
  activity.log = async () => {}
  botScore.recordLoginFailure = () => {}
  loginProtection.recordFailure = () => {}
  loginProtection.recordSuccess = () => {}
  sessionService.createSession = (user, authMethod) => {
    sessionsCreated.push({ user, authMethod })
    return { token: 'session-token' }
  }
  sessionService.createPartialSession = () => 'challenge-jwt'
  sessionService.honorTrustedDevice = async () => true
  sessionService.sessionMeta = () => ({ deviceHash: 'dh', userAgent: 'UA' })
})
afterEach(() => {
  for (const key of Object.keys(orig)) { orig[key].mod[key] = orig[key].val; delete orig[key] }
})

const baseReq = (body = {}) => ({ body, ip: '10.0.0.1', headers: {} })

// ── login(): trusted-device skips TOTP ────────────────────────────────────
test('login: a TOTP user on a device trusted by THEM skips the code and gets a session', async () => {
  users.getRawByUsername = async () => ({ id: 5, username: 'safe', role: 'admin', status: 'active', totp_enabled: 1 })
  users.validatePassword = async () => true
  sessionService.resolveTrustedDevice = async () => ({ id: 11, user_id: 5 })
  let honored = null
  sessionService.honorTrustedDevice = async (id) => { honored = id }
  const res = mockRes()
  await ctrl.login(baseReq({ username: 'safe', password: 'right' }), res)
  assert.equal(sessionsCreated.length, 1, 'session issued without a TOTP challenge')
  assert.equal(sessionsCreated[0].authMethod, 'totp')
  assert.equal(honored, 11, 'the trusted device was stamped as used')
  assert.equal(res.body.totpRequired, undefined)
})

test('login: a trust token bound to a DIFFERENT user is ignored (challenge as usual)', async () => {
  users.getRawByUsername = async () => ({ id: 5, username: 'safe', status: 'active', totp_enabled: 1 })
  users.validatePassword = async () => true
  sessionService.resolveTrustedDevice = async () => ({ id: 11, user_id: 999 }) // someone else's device
  const res = mockRes()
  await ctrl.login(baseReq({ username: 'safe', password: 'right' }), res)
  assert.equal(res.body.totpRequired, true)
  assert.equal(sessionsCreated.length, 0)
})

test('login: a trusted-device lookup error falls back to the TOTP challenge (fail closed)', async () => {
  users.getRawByUsername = async () => ({ id: 5, username: 'safe', status: 'active', totp_enabled: 1 })
  users.validatePassword = async () => true
  sessionService.resolveTrustedDevice = async () => { throw new Error('store down') }
  const res = mockRes()
  await ctrl.login(baseReq({ username: 'safe', password: 'right' }), res)
  assert.equal(res.body.totpRequired, true)
  assert.equal(sessionsCreated.length, 0)
})

// ── loginTotp(): recovery code as an alternative factor ───────────────────
test('loginTotp: a valid recovery code (no TOTP code) issues the session and is consumed', async () => {
  sessionService.upgradeSessionAfterTotp = () => ({ id: 5 })
  users.getRawById = async () => ({ id: 5, username: 'safe', role: 'player', totp_enabled: 1, totp_secret: 'S' })
  totp.verifyCode = () => false
  let consumed = null
  recoveryCodes.consumeForUser = async (id, code) => { consumed = { id, code }; return true }
  const res = mockRes()
  await ctrl.loginTotp(baseReq({ challenge: 'ok', recoveryCode: 'abcde-12345' }), res)
  assert.equal(sessionsCreated.length, 1)
  assert.deepEqual(consumed, { id: 5, code: 'abcde-12345' })
  assert.equal(res.body.user.id, 5)
})

test('loginTotp: neither a valid code nor a valid recovery code is a 401, no session', async () => {
  sessionService.upgradeSessionAfterTotp = () => ({ id: 5 })
  users.getRawById = async () => ({ id: 5, totp_enabled: 1, totp_secret: 'S' })
  totp.verifyCode = () => false
  recoveryCodes.consumeForUser = async () => false
  const res = mockRes()
  await ctrl.loginTotp(baseReq({ challenge: 'ok', recoveryCode: 'nope' }), res)
  assert.equal(res.statusCode, 401)
  assert.equal(sessionsCreated.length, 0)
})

// ── loginTotp(): trustDevice opt-in ───────────────────────────────────────
test('loginTotp: trustDevice under the cap sets the trust cookie', async () => {
  sessionService.upgradeSessionAfterTotp = () => ({ id: 5 })
  users.getRawById = async () => ({ id: 5, username: 'safe', role: 'admin', totp_enabled: 1, totp_secret: 'S' })
  totp.verifyCode = () => true
  sessionService.trustDeviceCapReached = async () => false
  sessionService.mintTrustToken = () => ({ trustToken: 'TRUST-RAW', trustHash: 'H', deviceHash: null, userAgent: null, expiresAt: new Date() })
  let stored = null
  trustedDevices.store = async (row) => { stored = row }
  const res = mockRes()
  await ctrl.loginTotp(baseReq({ challenge: 'ok', code: '654321', trustDevice: true, deviceName: 'My Laptop' }), res)
  assert.equal(sessionsCreated.length, 1)
  assert.equal(res.cookies.rg_trust, 'TRUST-RAW', 'the trust cookie was set')
  assert.equal(stored.userId, 5)
  assert.equal(stored.platform, 'web')
  assert.equal(stored.deviceName, 'My Laptop')
  assert.equal(res.body.trustLimitReached, undefined)
})

test('loginTotp: trustDevice at the cap still issues the session but returns the limit prompt', async () => {
  sessionService.upgradeSessionAfterTotp = () => ({ id: 5 })
  users.getRawById = async () => ({ id: 5, username: 'safe', role: 'admin', totp_enabled: 1, totp_secret: 'S' })
  totp.verifyCode = () => true
  sessionService.trustDeviceCapReached = async () => true
  trustedDevices.listActiveForUser = async () => [{ id: 1, device_name: 'Old', created_at: 't', last_used_at: 't', expires_at: 't', platform: 'web' }]
  let stored = false
  trustedDevices.store = async () => { stored = true }
  const res = mockRes()
  await ctrl.loginTotp(baseReq({ challenge: 'ok', code: '654321', trustDevice: true }), res)
  assert.equal(sessionsCreated.length, 1, 'login still succeeds')
  assert.equal(res.cookies.rg_trust, undefined, 'no trust cookie at the cap')
  assert.equal(stored, false, 'no new trust row created')
  assert.equal(res.body.trustLimitReached, true)
  assert.equal(res.body.devices.length, 1)
})