#!/usr/bin/env bash
IP=$(hostname -I | awk '{print $1}')
YW=`echo "\033[33m"`
BL=`echo "\033[36m"`
RD=`echo "\033[01;31m"`
BGN=`echo "\033[4;92m"`
GN=`echo "\033[1;92m"`
DGN=`echo "\033[32m"`
CL=`echo "\033[m"`
BFR="\\r\\033[K"
HOLD="-"
CM="${GN}✓${CL}"
APP="FileBrowser"
hostname="$(hostname)"
set -o errexit
set -o errtrace
set -o nounset
set -o pipefail
shopt -s expand_aliases
alias die='EXIT=$? LINE=$LINENO error_exit'
trap die ERR

function error_exit() {
  trap - ERR
  local reason="Unknown failure occured."
  local msg="${1:-$reason}"
  local flag="${RD}‼ ERROR ${CL}$EXIT@$LINE"
  echo -e "$flag $msg" 1>&2
  exit $EXIT
}

while true; do
    read -p "This will Install ${APP} on $hostname. Proceed(y/n)?" yn
    case $yn in
        [Yy]* ) break;;
        [Nn]* ) exit;;
        * ) echo "Please answer yes or no.";;
    esac
done
clear
function header_info {
echo -e "${DGN}

  ______ _ _      ____                                  
 |  ____(_) |    |  _ \                                 
 | |__   _| | ___| |_) |_ __ _____  v3  _____  ___ _ __ 
 |  __| | | |/ _ \  _ <|  __/ _ \ \ /\ / / __|/ _ \  __|
 | |    | | |  __/ |_) | | | (_) \ V  V /\__ \  __/ |   
 |_|    |_|_|\___|____/|_|  \___/ \_/\_/ |___/\___|_|   
${CL}"
}

header_info

function msg_info() {
    local msg="$1"
    echo -ne " ${HOLD} ${YW}${msg}..."
}

function msg_ok() {
    local msg="$1"
    echo -e "${BFR} ${CM} ${GN}${msg}${CL}"
}

msg_info "Installing ${APP}"
curl -fsSL https://raw.githubusercontent.com/filebrowser/get/master/get.sh | bash &>/dev/null
filebrowser config init -a '0.0.0.0' &>/dev/null
filebrowser config set -a '0.0.0.0' &>/dev/null
filebrowser users add admin changeme --perm.admin &>/dev/null
msg_ok "Installed ${APP} on $hostname"

msg_info "Creating Service"
service_path="/etc/systemd/system/filebrowser.service"
echo "[Unit]
Description=Filebrowser
After=network-online.target

[Service]
User=root
WorkingDirectory=/root/
ExecStart=/usr/local/bin/filebrowser -r /

[Install]
WantedBy=default.target" > $service_path

systemctl enable --now filebrowser.service &>/dev/null
msg_ok "Created Service"

msg_ok "Completed Successfully!\n"
echo -e "${APP} should be reachable by going to the following URL.
         ${BL}http://$IP:8080${CL} \n"