import test from 'node:test'
import assert from 'node:assert/strict'

import prisma from '../../utils/prisma'
import { keycloak } from '../../utils/keycloak'
import { protect } from '../auth'

const makeUser = (id: number, username: string) => ({
  id,
  username,
  password: 'hidden',
  name: username,
  email: null,
  phone: null,
  role: 'admin',
  status: 'active',
  person_id: null,
  person: null
})

const createResponse = () => {
  const state = { statusCode: 200, body: null as any, nextCount: 0 }
  const res = {
    locals: {} as any,
    status(code: number) {
      state.statusCode = code
      return this
    },
    json(payload: any) {
      state.body = payload
      return this
    }
  }
  const next = () => {
    state.nextCount += 1
  }
  return { res, next, state }
}

test('Keycloak 模式下真实 Bearer 令牌优先于旧的钉钉 H5 session', async () => {
  const originalMode = process.env.AUTH_MODE
  const originalProtect = keycloak.protect
  const originalFindUnique = prisma.user.findUnique
  const lookups: any[] = []

  process.env.AUTH_MODE = 'keycloak'
  ;(keycloak.protect as any) = () => async (req: any, _res: any, next: any) => {
    req.kauth = {
      grant: {
        access_token: {
          content: {
            preferred_username: 'keycloak-user',
            name: 'Keycloak User',
            realm_access: { roles: ['ignored-external-role'] }
          }
        }
      }
    }
    return next()
  }
  ;(prisma.user.findUnique as any) = async (args: any) => {
    lookups.push(args.where)
    if (args.where.username === 'keycloak-user') return makeUser(22, 'keycloak-user')
    if (args.where.id === 11) return makeUser(11, 'old-dingtalk-session')
    return null
  }

  try {
    const middleware = protect()
    const req = {
      headers: { authorization: 'Bearer real-keycloak-token' },
      session: { user: { id: 11 } }
    }
    const { res, next, state } = createResponse()
    await middleware(req as any, res as any, next as any)

    assert.equal(state.nextCount, 1)
    assert.equal(res.locals.user.id, 22)
    assert.deepEqual(lookups, [{ username: 'keycloak-user' }])
  } finally {
    if (originalMode === undefined) delete process.env.AUTH_MODE
    else process.env.AUTH_MODE = originalMode
    ;(keycloak.protect as any) = originalProtect
    ;(prisma.user.findUnique as any) = originalFindUnique
  }
})

test('Keycloak 模式下 Bearer session 占位值仍使用 H5 session', async () => {
  const originalMode = process.env.AUTH_MODE
  const originalProtect = keycloak.protect
  const originalFindUnique = prisma.user.findUnique
  let keycloakCalled = 0

  process.env.AUTH_MODE = 'keycloak'
  ;(keycloak.protect as any) = () => async (_req: any, _res: any, next: any) => {
    keycloakCalled += 1
    return next()
  }
  ;(prisma.user.findUnique as any) = async (args: any) => {
    if (args.where.id === 11) return makeUser(11, 'dingtalk-session')
    return null
  }

  try {
    const middleware = protect()
    const req = {
      headers: { authorization: 'Bearer session' },
      session: { user: { id: 11 } }
    }
    const { res, next, state } = createResponse()
    await middleware(req as any, res as any, next as any)

    assert.equal(state.nextCount, 1)
    assert.equal(keycloakCalled, 0)
    assert.equal(res.locals.user.id, 11)
  } finally {
    if (originalMode === undefined) delete process.env.AUTH_MODE
    else process.env.AUTH_MODE = originalMode
    ;(keycloak.protect as any) = originalProtect
    ;(prisma.user.findUnique as any) = originalFindUnique
  }
})

test('local 模式即使带真实 Bearer 也只使用本地 session', async () => {
  const originalMode = process.env.AUTH_MODE
  const originalFindUnique = prisma.user.findUnique

  process.env.AUTH_MODE = 'local'
  ;(prisma.user.findUnique as any) = async (args: any) => {
    if (args.where.id === 31) return makeUser(31, 'local-session')
    return null
  }

  try {
    const middleware = protect()
    const req = {
      headers: { authorization: 'Bearer should-not-win' },
      session: { user: { id: 31 } }
    }
    const { res, next, state } = createResponse()
    await middleware(req as any, res as any, next as any)

    assert.equal(state.nextCount, 1)
    assert.equal(res.locals.user.id, 31)
  } finally {
    if (originalMode === undefined) delete process.env.AUTH_MODE
    else process.env.AUTH_MODE = originalMode
    ;(prisma.user.findUnique as any) = originalFindUnique
  }
})

test('钉钉会话在员工改绑后立即失效且不继续读取系统用户', async () => {
  const originalMode = process.env.AUTH_MODE
  const originalFindFirst = prisma.user.findFirst
  const originalFindUnique = prisma.user.findUnique
  let findUniqueCalls = 0

  process.env.AUTH_MODE = 'local'
  ;(prisma.user.findFirst as any) = async (args: any) => {
    assert.equal(args.where.id, 41)
    assert.equal(args.where.person.is.source_userid, 'ding-user-a')
    return null
  }
  ;(prisma.user.findUnique as any) = async () => {
    findUniqueCalls += 1
    return makeUser(41, 'rebound-user')
  }

  try {
    const middleware = protect()
    const req = {
      headers: {},
      session: {
        user: {
          id: 41,
          auth_source: 'dingtalk',
          dingtalk_userid: 'ding-user-a'
        }
      }
    }
    const { res, next, state } = createResponse()
    await middleware(req as any, res as any, next as any)

    assert.equal(state.nextCount, 0)
    assert.equal(state.statusCode, 401)
    assert.equal(state.body.message, '钉钉绑定已失效，请重新登录或联系管理员')
    assert.equal(req.session.user, undefined)
    assert.equal(findUniqueCalls, 0)
  } finally {
    if (originalMode === undefined) delete process.env.AUTH_MODE
    else process.env.AUTH_MODE = originalMode
    ;(prisma.user.findFirst as any) = originalFindFirst
    ;(prisma.user.findUnique as any) = originalFindUnique
  }
})