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

interface FileInfo {
  name: string
  fileSize: number
  dateModify: number
}

export default class IosLicenseController {
  /* ================= HELPER ================= */

  private getBinFiles(dir: string): FileInfo[] {
    if (!fs.existsSync(dir)) return []

    return fs
      .readdirSync(dir)
      .filter((file) => file.toLowerCase().endsWith('.bin'))
      .map((file) => {
        const fullPath = path.join(dir, file)
        const stat = fs.statSync(fullPath)

        return {
          name: file,
          fileSize: stat.size,
          dateModify: stat.mtime.getTime(),
        }
      })
      .sort((a, b) => b.dateModify - a.dateModify)
  }

  private getLicFiles(dir: string): FileInfo[] {
    if (!fs.existsSync(dir)) return []

    return fs
      .readdirSync(dir)
      .filter((file) => file.toLowerCase().endsWith('.lic'))
      .map((file) => {
        const fullPath = path.join(dir, file)
        const stat = fs.statSync(fullPath)

        return {
          name: file,
          fileSize: stat.size,
          dateModify: stat.mtime.getTime(),
        }
      })
      .sort((a, b) => b.dateModify - a.dateModify)
  }

  /* ================= IOS ================= */

  async getIos() {
    const smbPath = '/ipsteamSMB/IOS/i'
    const localPath = 'storage/i'

    const targetPath = fs.existsSync(smbPath) ? smbPath : localPath

    return this.getBinFiles(targetPath)
  }

  /* ================= LICENSE ================= */

  async getLicense() {
    const smbPath = '/ipsteamSMB/IOS/License'
    const localPath = 'storage/License'

    const targetPath = fs.existsSync(smbPath) ? smbPath : localPath

    return this.getLicFiles(targetPath)
  }
}