import fs from 'fs'
import path from 'path'
import { fileURLToPath } from 'url'

const __dirname = path.dirname(fileURLToPath(import.meta.url))
const namesPath = path.join(__dirname, '../../data/names.txt')

let allNames = []

function loadNames() {
  try {
    const content = fs.readFileSync(namesPath, 'utf-8')
    allNames = content
      .split('\n')
      .map(name => name.trim())
      .filter(name => name.length > 0)
  } catch (error) {
    console.error('Error loading names:', error)
    allNames = ['Alex', 'Jordan', 'Casey', 'Morgan', 'Riley'] // Fallback
  }
}

// Load names on module import
loadNames()

export function getRandomNames(count) {
  if (count > allNames.length) {
    throw new Error(`Cannot get ${count} unique names. Only ${allNames.length} available.`)
  }

  const shuffled = [...allNames].sort(() => Math.random() - 0.5)
  return shuffled.slice(0, count)
}

export function getRandomName() {
  return allNames[Math.floor(Math.random() * allNames.length)]
}