#!/bin/bash

toolName=aria2
toolDeps=aria2
toolUser=aria2

# Get script working directory
# (when called from a different directory)
WDIR="$(cd "$(dirname -- "${BASH_SOURCE[0]}")" >>/dev/null 2>&1 && pwd)"
CONFIG=0
SCRIPT_NAME=$(basename -- $0)
SCRIPT_NAME=${SCRIPT_NAME%%.*}
CONFIG_FILE_NAME="${SCRIPT_NAME}.cfg"
CONFIG_FILE_TEMPLATE="$WDIR/${CONFIG_FILE_NAME}.example"

aptOpt=

seq_config() {
  #echo "Called once before executing steps."
  ## e.g. to source a config file manually:
  #. "$CONFIG_FILE"
  ## or to use sequencer api with global config file:
  initSeqConfig "$CONFIG_FILE_NAME" "$CONFIG_FILE_TEMPLATE"
  ## or to use sequencer api with profile config file support:
  #initSeqConfig -p "$SCRIPT_NAME" "$CONFIG_FILE_TEMPLATE"
  if [ $? -eq 0 ] ; then
    CONFIG=1
  else
    # End if no configuration file exists
    dry || return 1
  fi
  quiet && aptOpt="-y"
  return 0
}

step_1_info() { echo "Install $toolName"; }
step_1_alias() { echo "install"; }
step_1() {
  exe apt update
  exe apt install $toolDeps $aptOpt
}

step_2_info() { echo "Create $toolName configuration"; }
step_2() {
  exe adduser --system --quiet "$toolUser"
  if [ ! -e $ariaConfLoc ] ; then
    exe mkdir -p "$(dirname $ariaConfLoc)"
    addConf -s "$ARIA2_CONF" "$ariaConfLoc"
    exe chown $toolUser:root "$ariaConfLoc"
    exe chmod 770 "$ariaConfLoc"
  fi
}
ariaConfLoc="/etc/aria2/aria2.conf"


step_3_info() { echo "Create $toolName service"; }
step_3_alias() { echo "service"; }
step_3() {
  addConf -s "$ariaService" "$ariaServiceLoc"
  exe systemctl daemon-reload
  info "Service not started or enabled"
}
ariaServiceLoc="/etc/systemd/system/aria2.service"
ariaService="[Unit]
Description=Aria2
After=network-online.target

[Service]
User=$toolUser
Type=forking
ExecStart=/usr/bin/aria2c --conf-path=${ariaConfLoc} --daemon
ExecStop=/bin/kill -s STOP $MAINPID
Restart=on-failure

[Install]
WantedBy=multi-user.target"

step_10_info() { echo "Add ufw rule for rpc port 6800"; }
step_10_alias() { echo "ufw"; }
step_10() {
  exe ufw allow in on eth0 to any port 6800 proto tcp comment "Aria2 rpc"
}

readonly sqr_minVersion=16
. /usr/local/bin/sequencer.sh