#!/usr/bin/env bash
source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
# Copyright (c) 2021-2025 community-scripts ORG
# Author: KernelSailor
# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
# Source: https://snowflake.torproject.org/

APP="tor-snowflake"
var_tags="privacy;proxy;tor"
var_cpu="1"
var_ram="512"
var_disk="4"
var_os="debian"
var_version="13"
var_unprivileged="1"
var_nesting="0"

header_info "$APP"
variables
color
catch_errors

function update_script() {
  header_info
  check_container_storage
  check_container_resources
  if [[ ! -d /opt/snowflake ]]; then
    msg_error "No ${APP} Installation Found!"
    exit
  fi
  if ! id snowflake &>/dev/null; then
    msg_error "snowflake user not found!"
    exit
  fi

  msg_info "Updating Container OS"
  $STD apt-get update
  $STD apt-get -y upgrade
  msg_ok "Updated Container OS"

  RELEASE=$(curl -fsSL https://gitlab.torproject.org/api/v4/projects/tpo%2Fanti-censorship%2Fpluggable-transports%2Fsnowflake/releases | jq -r '.[0].tag_name' | sed 's/^v//')
  if [[ ! -f /opt/${APP}_version.txt ]] || [[ "${RELEASE}" != "$(cat /opt/${APP}_version.txt)" ]]; then
    msg_info "Stopping Service"
    systemctl stop snowflake-proxy
    msg_ok "Stopped Service"

    msg_info "Updating Go"
    source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/tools.func)
    setup_go
    msg_ok "Updated Go"

    msg_info "Updating ${APP} to v${RELEASE}"
    cd /opt/snowflake || exit
    $STD git fetch --all
    $STD git checkout "v${RELEASE}"
    chown -R snowflake:snowflake /opt/snowflake
    $STD sudo -u snowflake go build -o proxy ./proxy
    echo "${RELEASE}" >/opt/${APP}_version.txt
    msg_ok "Updated ${APP} to v${RELEASE}"

    msg_info "Starting Service"
    systemctl start snowflake-proxy
    msg_ok "Started Service"
    msg_ok "Updated successfully!"
  else
    msg_ok "No update required. ${APP} is already at v${RELEASE}."
  fi
  exit
}

start
build_container
description

msg_ok "Completed Successfully!\n"
echo -e "${CREATING}${GN}Tor Snowflake setup has been successfully initialized!${CL}"
echo -e "${INFO}${YW} Snowflake proxy is running as a systemd service.${CL}"
echo -e "${INFO}${YW} Check status: systemctl status snowflake-proxy${CL}"