import fs from 'node:fs'
import path from 'node:path'

/**
 * Function to clean up unwanted characters from the output data.
 * @param {string} data - The raw data to be cleaned.
 * @returns {string} - The cleaned data.
 */
export const cleanData = (data: string) => {
  return data
    .replace(/--More--\s*BS\s*BS\s*BS\s*BS\s*BS\s*BS/g, '')
    .replace(/\s*--More--\s*/g, '')
    .replace(/\x1b\[[0-9;]*m/g, '') // Remove ANSI escape codes
    .replace(/\x08/g, '')
    .replace(/[^\x20-\x7E\r\n]/g, '') // Remove non-printable characters
  // .replace(/\r\n/g, '\n')
}

export function sleep(ms: number) {
  return new Promise((resolve) => setTimeout(resolve, ms))
}

export function appendLog(output: string, stationId: number, lineNumber: number, port: number) {
  const date = new Date().toISOString().slice(0, 10).replace(/-/g, '') // YYYYMMDD
  const logDir = path.join('storage', 'system_logs')
  const logFile = path.join(logDir, `${date}-Station_${stationId}-Line_${lineNumber}_${port}.log`)

  // Ensure folder exists
  if (!fs.existsSync(logDir)) {
    fs.mkdirSync(logDir, { recursive: true })
  }

  fs.appendFile(logFile, output, (err) => {
    if (err) {
      console.error('❌ Failed to write log:', err.message)
    }
  })
}