#!/bin/bash

################################################################
# dmenu_wrun - dmenu script that simulates 'rofi -show window' #
#                                                              #
# Author: q3aql <q3aql@duck.com>                               #
# Last update: 20-11-2022                                      #
################################################################

# Configuration variables
load_theme_path="${HOME}/.dmenu"
load_themes="${load_theme_path}/themes"
load_theme_file="${load_theme_path}/load_theme"

function load_theme() {
  if [ -f "${load_theme_file}" ] ; then
    source "${load_theme_file}"
  else
    mkdir -p "${load_theme_path}"
    mkdir -p "${load_themes}"
    echo "#!/bin/bash" > ${load_theme_file}
    echo "" >> ${load_theme_file}
    echo "NFCOLOR=\"#bbbbbb\"" >> ${load_theme_file}
    echo "NBCOLOR=\"#1f1f35\"" >> ${load_theme_file}
    echo "SFCOLOR=\"#eeeeee\"" >> ${load_theme_file}
    echo "SBCOLOR=\"#664477\"" >> ${load_theme_file}
    source "${load_theme_file}"
  fi
}

function generate_spaces() {
  num_spaces=${1}
  count_spaces=1
  while [ ${count_spaces} -le ${num_spaces} ] ; do
    echo -n " "
    count_spaces=$(expr ${count_spaces} + 1)
  done
}

function check_wmctrl() {
  wmctrl -h &> /dev/null
  error=$?
  if [ ${error} -ne 0 ] ; then
    echo "  Error: You need install 'wmctrl'" | dmenu -i -nb "${NBCOLOR}" -nf "${NFCOLOR}" -sb "${SBCOLOR}" -sf "${SFCOLOR}" -l 18 -p " window:"
    exit
  fi
}

function list_applications_icons() {
  wmctrl -l | while read current_app ; do
    echo "  ${current_app}"
  done
  generate_spaces 75
}

load_theme
check_wmctrl
list_output=$(list_applications_icons | dmenu -i -nb "${NBCOLOR}" -nf "${NFCOLOR}" -sb "${SBCOLOR}" -sf "${SFCOLOR}" -l 18 -p " window:")
run_output=$(echo ${list_output} | cut -c 5-999)
echo "# Selected: ${run_output}"
run_output=$(echo "${run_output}" | cut -d " " -f 1)
if [ -z "${run_output}" ] ; then
  echo "# Selection window canceled"
else
  wmctrl -ia "${run_output}" &> /dev/null
fi