#!/usr/bin/env bash

readonly toolName=pyload
readonly toolDeps=(python3 python3-pip python3-pil python3-openssl libcurl4-openssl-dev libssl-dev p7zip ffmpeg tesseract-ocr)

sq_aptOpt=
sq_config=0

seq_config() {
  checkVpn

  if initSeqConfig "${seq_configName:?}" "${seq_configTemplate:?}" ; then
    sq_config=1
  else
    # End if no configuration file exists
    dry || return 1
  fi

  ## Apt cmdline option to suppress user interaction
  interactive || sq_aptOpt="-y"

  ## Disable error checks if external scripts are used
  ## e.g. error on unbound variables
  #disableErrorCheck

  ## Return of non zero value will abort the sequence
  return 0
}

step_1_info() { echo "Show status"; }
step_1_alias() { echo "status"; }
step_1() {
  local version=$(${sc_pyloadDir}/bin/pip list | grep pyload)
  info "Status of ${toolName}-ng ${version##p* }"
  exe systemctl -n0 status ${toolName}
}

step_10_info() { 
  echo "Install apt dependencies:"; 
  echoinfo "${toolDeps[@]}";
}
#step_10_options() { echo "[OPTIONS]"; }
step_10_alias() { echo "install"; }
step_10() {
  exe apt install "${toolDeps[@]}" ${sq_aptOpt}
}

step_11_info() { 
  echo "Create virtual python environment.";
}
step_11() {
  if [ ! -e "$sc_pyloadDir/bin" ]; then
    exe python3 -m venv ${sc_pyloadDir}
    endReturn "Creating virtual environment failed"
  else
    warning "Virtual env. ${sc_pyloadDir} already exists"
  fi
  exe ${sc_pyloadDir}/bin/pip install --pre pyload-ng[all]
}

step_12_info() { echo "Create system user ${sc_pyloadUser:-'pyload'}"; }
step_12() {
  if ! id ${sc_pyloadUser} &>/dev/null; then
    exe adduser --home "${sc_pyloadHome:?}" --disabled-password --disabled-login --gecos "" "${sc_pyloadUser:?}"
    info "Granting write access to network folder"
    exe usermod -aG debian-transmission pyload
  else
    warning "User ${sc_pyloadUser} already exists"
  fi
}

step_13_info() { echo "Create systemd service: ${toolServiceLoc##*/}"; }
step_13() {
  local lService=`eval "echo \"$toolService\""`
  addConf -c "$lService" "$toolServiceLoc"
  exe systemctl daemon-reload
  exe systemctl disable "${toolServiceLoc##*/}"
}
toolServiceLoc="/etc/systemd/system/pyload.service"
toolService="[Unit]
Description=Python Downloader
After=network-online.target nss-lookup.target local-fs.target remote-fs.target

[Service]
User=pyload
ExecStart=\${sc_pyloadDir}/bin/pyload
Restart=always
RestartSec=5

[Install]
WantedBy=multi-user.target"

step_20_info() { echo "Upgrade ${toolName}"; }
step_20_alias() { echo "upgrade"; }
step_20() {
  exe service ${toolName} stop
  exe ${sc_pyloadDir}/bin/pip install --upgrade pip
  exe ${sc_pyloadDir}/bin/pip install --pre pyload-ng[all] -U
}

checkVpn() {
  if ip -br a | grep tun >>/dev/null 2>&1 ; then
    [ $? -eq 0 ] && warning "A VPN connection is possibly active. Consider deactivating it befor any apt operation."
  fi
}

# shellcheck disable=SC2034 # Appears unused
readonly sqr_minVersion=16
# shellcheck disable=SC1091 # Don't follow this source
. /usr/local/bin/sequencer.sh