#!/usr/bin/env bash

# All executed commands are printed to stdout
set -x

# Redirect stdout (and stderr to stdout) to a file
exec 1>/var/log/updater/vaultwarden-updater/vaultwarden-updater-"$(date +%F)".log 2>&1

# Abort on nonzero exit status
set -o errexit

# Abort on unbound variable
set -o nounset

# Don't hide errors within pipes
set -o pipefail

# set your API key here
key=

# set your chat id here
chat_id=

# Set your username
username=

function send_message() {
  if ! [ $# -eq 0 ]; then
    curl --silent --show-error --fail --request POST "https://api.telegram.org/$key/sendMessage" --data chat_id="$chat_id" --data text="$1" --output /dev/null
  else
    echo "No argument supplied, please specify the message to send"
    exit 1
  fi
}

function update_vaultwarden {
  rm --recursive --force /tmp/vaultwarden

  # Clone the latest release
  su --login "$username" --command "git clone https://github.com/dani-garcia/vaultwarden.git /tmp/vaultwarden"

  # Compile the binary
  su --login "$username" --command "/home/$username/.cargo/bin/cargo build --quiet --features sqlite --release --manifest-path=/tmp/vaultwarden/Cargo.toml"
  systemctl stop vaultwarden.service

  # Move the binary to the right place
  mv /tmp/vaultwarden/target/release/vaultwarden /usr/local/bin/vaultwarden

  # Set the correct permissions
  chown root:vaultwarden /usr/local/bin/vaultwarden
  chmod 750 /usr/local/bin/vaultwarden
  /sbin/restorecon -v /usr/local/bin/vaultwarden

  if ! systemctl start vaultwarden.service; then
    send_message "[Vaultwarden] - Vaultwarden service did not start correctly. Please log in as soon as possible and see what went wrong"
    exit 1
  fi

  send_message "[Vaultwarden] - Vaultwarden has just been updated"
}

# Retrieve local release
local_release=$(/usr/local/bin/vaultwarden --version | awk --field-separator '-' '{print $2}')

# Retrieve the latest release
latest_release=$(git ls-remote https://github.com/dani-garcia/vaultwarden.git HEAD | awk '{print substr($1, 1, length($1) - 32)}')

# Compare these two versions
if ! [ "$latest_release" == "$local_release" ]; then
  send_message "[Vaultwarden] - Vaultwarden is not up to date (https://github.com/dani-garcia/vaultwarden/commit/$latest_release)"
  update_vaultwarden
fi

send_message "[Vaultwarden] - Vaultwarden is up to date"