import * as crypto from 'node:crypto'
import path from 'path'
import ChatGPTConfig from '../config/config.js'
import fs from 'fs'
export function md5 (str) {
  return crypto.createHash('md5').update(str).digest('hex')
}

/**
 * Converts a timestamp to Beijing time (UTC+8)
 * @param {number|string} timestamp - Timestamp in milliseconds or seconds
 * @param {string} [format='YYYY-MM-DD HH:mm:ss'] - Output format
 * @returns {string} Formatted Beijing time
 */
export function formatTimeToBeiJing (timestamp, format = 'YYYY-MM-DD HH:mm:ss') {
  // Handle string timestamp
  if (typeof timestamp === 'string') {
    timestamp = parseInt(timestamp)
  }

  // Automatically determine if timestamp is in seconds or milliseconds
  // If timestamp represents a date before 2000, assume it's in milliseconds
  if (timestamp.toString().length <= 10) {
    // Convert seconds to milliseconds
    timestamp = timestamp * 1000
  }

  // Create date object with the timestamp
  const date = new Date(timestamp)

  // Calculate Beijing time (UTC+8)
  const beijingTime = new Date(date.getTime() + 8 * 60 * 60 * 1000)

  // Format the date according to the specified format
  return formatDate(beijingTime, format)
}

/**
 * Formats a Date object according to the specified format
 * @param {Date} date - Date object to format
 * @param {string} format - Format string (YYYY-MM-DD HH:mm:ss)
 * @returns {string} Formatted date string
 */
function formatDate (date, format) {
  const year = date.getUTCFullYear()
  const month = padZero(date.getUTCMonth() + 1)
  const day = padZero(date.getUTCDate())
  const hours = padZero(date.getUTCHours())
  const minutes = padZero(date.getUTCMinutes())
  const seconds = padZero(date.getUTCSeconds())

  return format
    .replace('YYYY', year)
    .replace('MM', month)
    .replace('DD', day)
    .replace('HH', hours)
    .replace('mm', minutes)
    .replace('ss', seconds)
}

/**
 * Pads a number with leading zero if needed
 * @param {number} num - Number to pad
 * @returns {string} Padded number string
 */
function padZero (num) {
  return num < 10 ? '0' + num : num.toString()
}

export const dataDir = path.resolve('./plugins/chatgpt-plugin', ChatGPTConfig.chaite.dataDir)
if (!fs.existsSync(dataDir)) {
  fs.mkdirSync(dataDir, { recursive: true })
}