#!/usr/bin/env bash

# ERR Trap Inheritance by shell functions, command substitutions, and subshells.
set -E

# Exit on Error Causes the script to immediately exit if any command returns a non-zero exit status unless that command is followed by || to explicitly handle the error.
set -e 

# Treats the use of undefined variables as an error, causing the script to exit.
set -u

# Ensures that a pipeline (a series of commands connected by |) fails if any command within it fails, rather than only failing if the last command fails.
set -o pipefail

# Cleaup script.
trap cleanup SIGINT SIGTERM ERR EXIT

# Get the script location and cd to it.
script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

# Usage error message.
usage() {
  cat <<EOF 
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]

Script description here.

Available options:

-h, --help      Print this help and exit
-v, --verbose   Print script debug info
EOF
  exit
}

# Cleaup up script iplementation. 
cleanup() {
  trap - SIGINT SIGTERM ERR EXIT
  # script cleanup here
}

# Color setup implementation. 
setup_colors() {
  if [[ -t 2 ]] && [[ -z "${NO_COLOR-}" ]] && [[ "${TERM-}" != "dumb" ]]; then
    NOFORMAT='\033[0m' RED='\033[0;31m' GREEN='\033[0;32m' ORANGE='\033[0;33m' BLUE='\033[0;34m' PURPLE='\033[0;35m' CYAN='\033[0;36m' YELLOW='\033[1;33m'
  else
    NOFORMAT='' RED='' GREEN='' ORANGE='' BLUE='' PURPLE='' CYAN='' YELLOW=''
  fi
}

# Message helper function implementation.
msg() {
  echo >&2 -e "${1-}"
}

# Script exit implementation.
die() {
  local msg=$1
  local code=${2-1} # default exit status 1
  msg "\033[0;31m$msg\033[0m"
  exit "$code"
}

# Parameter parsing implementation.
parse_params() {

  while :; do
    case "${1-}" in
    -h | --help) usage ;;
    -v | --verbose) set -x ;;
    --no-color) NO_COLOR=1 ;;
    -?*) die "Unknown option: $1" ;;
    *) break ;;
    esac
    shift
  done

  args=("$@")


  return 0
}
# ----- Script Start -----
# Parse parameters and setup colors for script.
parse_params "$@"
setup_colors

# Script logic example here.

# Exit if not run as root
if [ "$EUID" -ne 0 ]; then
  echo "This script must be run as root. Use sudo." >&2
  exit 1
fi

# URL of the file to download
URL="https://myrepos.dev/Randy-Jordan/eg/raw/branch/main/xdg/user-dirs.custom"

# Target file
TARGET="/etc/xdg/user-dirs.defaults"

# Temporary file for safe download
TMPFILE=$(mktemp)

# Download the file
msg "Downloading file from $URL..."
if curl -fsSL "$URL" -o "$TMPFILE"; then
    msg "Download successful."

    # Backup the current file
    msg "Backing up existing file to ${TARGET}.bak"
    cp "$TARGET" "${TARGET}.bak"

    # Replace the file
    msg "Replacing $TARGET with downloaded file..."
    cp "$TMPFILE" "$TARGET"

    msg "Replacement complete."
else
    msg "Download failed. Aborting."
fi

# Clean up temporary file
rm -f "$TMPFILE"
xdg-user-dirs-update --force

exit 0