Introduction

export interface Person {
  id: string
  name: string
  email: string
  department: 'R&D' | 'Design' | 'Product' | 'Operations' | 'Marketing'
  role: string
  level?: 'P5' | 'P6' | 'P7' | 'P8'
  status: 'active' | 'leave' | 'offboarded'
  salary: number
  joinedAt: string
  address: string
  bio: string
  children?: Person[]
}

const FIRST = ['Zhang', 'Li', 'Wang', 'Chen', 'Liu', 'Yang', 'Huang', 'Zhao', 'Wu', 'Zhou', 'Xu', 'Sun']
const LAST = ['Wei', 'Fang', 'Na', 'Min', 'Jing', 'Li', 'Qiang', 'Lei', 'Jun', 'Yang', 'Yong', 'Tao', 'Ming', 'Chao']
const DEPARTMENTS: Person['department'][] = ['R&D', 'Design', 'Product', 'Operations', 'Marketing']
const ROLES = ['Frontend Engineer', 'Backend Engineer', 'Full Stack Engineer', 'UI Designer', 'Product Manager', 'Data Analyst', 'Operations Specialist']
const LEVELS: Person['level'][] = ['P5', 'P6', 'P7', 'P8']
const STATUS: Person['status'][] = ['active', 'leave', 'offboarded']
const ADDRESSES = [
  '708, IBM Tower, 2 Boyun Rd, Zhangjiang Hi-Tech Park, Pudong, Shanghai',
  '1502, Zhongguancun Tower A, 27 Zhongguancun St, Haidian, Beijing',
  '2301, Block B, Bay Technology Ecology Park, 9 Gaoxin Nan 9th Rd, Nanshan, Shenzhen',
  '38F, R&F Yingkai Plaza, 16 Huaxia Rd, Pearl River New Town, Tianhe, Guangzhou',
  '318, Building 6, Alibaba Xixi Campus, 969 Wenyi W Rd, Yuhang, Hangzhou',
  '1207, Building 5, Block D, Tianfu Software Park, 1199 Tianfu Ave, Hi-Tech Zone, Chengdu',
  '19F, Gaoke Rongyu Tower, 222 Jiangdong Zhong Rd, Jianye, Nanjing',
  '1808, Block B, Phase 3, Optics Valley International Enterprise Center, 70 Optics Valley Ave, Hongshan, Wuhan'
]
const BIO_TEMPLATES = [
  'Led supply chain and fulfillment infrastructure for a cross-border e-commerce team; spearheaded a real-time scheduling system overhaul handling millions of daily orders, with a focus on stability and cost efficiency.',
  'Long-term investment in big data platforms and offline computation scheduling; built a PB-scale data warehouse and governance framework with strong experience in data quality and access control.',
  'Focused on design systems and component libraries, driving visual consistency across products and leading multiple Design Token and dark-mode rollouts.',
  'Responsible for an in-house low-code platform and BFF middleware layer; delivered internal scaffolding and CLI tooling with an emphasis on developer productivity and maintainability.',
  'Deep expertise in real-time audio/video and WebRTC interactive scenarios; led latency optimization and weak-network degradation strategies for live rooms with tens of millions of concurrent users.',
  'Owned permissions, billing and multi-tenancy for a B2B SaaS product with full end-to-end experience in RBAC, ABAC and compliance auditing.',
  'Engineered risk control and anti-abuse algorithms; built real-time feature platforms and rules engines covering payment, marketing and social scenarios.',
  'Focused on mobile performance optimization and cross-platform rendering frameworks; led end-to-end governance of startup time, memory usage and bundle size.'
]

function pick<T>(list: readonly T[], seed: number): T {
  return list[seed % list.length] as T
}

export function makePerson(seed: number): Person {
  const first = pick(FIRST, seed)
  const last = pick(LAST, seed * 31 + 7)
  const dept = pick(DEPARTMENTS, seed * 7)
  return {
    id: `P${String(seed).padStart(4, '0')}`,
    name: `${first} ${last}`,
    email: `user${seed}@movk.dev`,
    department: dept,
    role: pick(ROLES, seed * 3),
    level: pick(LEVELS, seed * 11),
    status: pick(STATUS, seed * 13),
    salary: 8000 + (seed * 257) % 50000,
    joinedAt: new Date(2018 + (seed % 7), seed % 12, 1 + (seed % 27)).toISOString().slice(0, 10),
    address: pick(ADDRESSES, seed * 17),
    bio: pick(BIO_TEMPLATES, seed * 19)
  }
}

export function makePeople(count: number, offset = 0): Person[] {
  return Array.from({ length: count }, (_, i) => makePerson(offset + i + 1))
}

export function makePeopleTree(rootCount = 5, childPerRoot = 3, depth = 1): Person[] {
  const build = (seed: number, level: number): Person => {
    const person = makePerson(seed)
    if (level >= depth) return person
    return {
      ...person,
      role: 'Team Lead',
      level: undefined,
      children: Array.from({ length: childPerRoot }, (_, j) =>
        build(seed * 100 + j + 1, level + 1))
    }
  }
  return Array.from({ length: rootCount }, (_, i) => build(i + 1, 0))
}