7zip_GUI.sh

#!/bin/bash

function display_error() {
  zenity --error --text="$1"
  exit 1
}

function check_dependencies() {
  local dependencies=("zenity" "7z")
  for dep in "${dependencies[@]}"; do
    message="Error: $dep is not installed. Please install it before running this script."
    command -v "$dep" &> /dev/null || display_error "$message"
  done
}

action_chooser() {
  action=$(zenity --list --title="7zip GUI" --column="Action" "Compress" "Extract" --width=400 --height=400 --ok-label="OK" --cancel-label="Cancel")
  case "$action" in
    "Compress")
      archive_operation=$(zenity --list --title="Archive Operation" --column="Operation" "Create New Archive" "Add to Existing Archive")
      case "$archive_operation" in
        "Create New Archive")
          archive_name=$(zenity --entry --title="Archive Name")
          compression_method=$(zenity --list --title="Compression Method" --column="Method" "7z" "zip" "tar" "tar.gz" "tar.bz2")
          compression_level=$(zenity --scale --title="Compression Level" --min-value=1 --max-value=9 --value=5 --step=1)
          file_names=$(zenity --file-selection --multiple --title="Select Files")
          # Compress the files
          7z a -t${compression_method} -mx${compression_level} "${archive_name}" ${file_names//|/ } || display_error "Compression failed"
          ;;
        "Add to Existing Archive")
          archive_name=$(zenity --file-selection --title="Select Existing Archive")
          add_file_names=$(zenity --file-selection --multiple --title="Select Files to Add")
          7z u "${archive_name}" ${add_file_names//|/ } || display_error "Adding files failed"
          ;;
        *)
          display_error "Invalid Archive Operation"
          ;;
      esac
      ;;
    "Extract")
      archive_name=$(zenity --file-selection --multiple --title="Select Archive to Extract")
      output_directory=$(zenity --file-selection --directory --title="Select Output Directory")

      # Extract the files
      7z x "${archive_name}" -o"${output_directory}" || display_error "Extraction failed"
      ;;
    *)
      display_error "Invalid Action"
      ;;
  esac
}

check_dependencies
action_chooser

zenity --info --text="Operation completed successfully"