#!/usr/bin/env ruby

require 'down'
require 'fileutils'
require 'tmpdir'
require 'ruby-progressbar'

# Define URL and file names
url = "https://archive.org/download/ebrain-1.1.6/ebrain-1.1.6.iso"
iso_file = File.join(Dir.tmpdir, "ebrain-1.1.6.iso")
msi_file = File.join(Dir.tmpdir, "eBrain.MSI")
cab_file = File.join(Dir.tmpdir, "Cabs.w4.cab")
mdb_file1 = File.join(Dir.tmpdir, "pcvocab.mdb1")
mdb_file = "pcvocab.mdb" # This is in the current directory

# Check if 7zip is installed
unless system('which 7z > /dev/null 2>&1')
  puts "7zip is not installed. Please download and install 7zip from https://www.7-zip.org/download.html"
  exit 1
end

# Initialize the progress bar
progressbar = nil

# Download the ISO file
puts "Downloading ISO file..."
Down.download(url,
  destination: iso_file,
  content_length_proc: ->(content_length) {
    progressbar = ProgressBar.create(
      title: 'Download Progress',
      total: content_length,
      format: '%a %bᗧ%i %p%% %t, Estimated time: %e'
    )
  },
  progress_proc: ->(progress) {
    progressbar.progress = progress
  }
)

# Extract the MSI file from the ISO
puts "Extracting MSI file..."
system("7z e #{iso_file} -o#{File.dirname(msi_file)} #{File.basename(msi_file)}")

# Extract the CAB file from the MSI
puts "Extracting CAB file..."
system("7z e #{msi_file} -o#{File.dirname(cab_file)} #{File.basename(cab_file)}")

# Extract the MDB file from the CAB
puts "Extracting MDB file..."
system("7z e #{cab_file} -o#{File.dirname(mdb_file1)} #{File.basename(mdb_file1)}")

# Rename and move the MDB file to the current directory
puts "Renaming and moving MDB file..."
FileUtils.mv mdb_file1, mdb_file

puts "Done."