#!/usr/bin/env bash

{{ includeTemplate "universal/profile" }}
{{ includeTemplate "universal/logg" }}

KEYID="{{ .user.gpg.id }}"

if [ -n "$KEYID" ] && command -v gpg > /dev/null; then
  if [ ! -d "$HOME/.gnupg" ]; then
    mkdir "$HOME/.gnupg"
  fi
  chown -R "$(whoami)" "$HOME/.gnupg/"
  find "$HOME/.gnupg" -type f -exec chmod 600 {} \;
  find "$HOME/.gnupg" -type d -exec chmod 700 {} \;
  if [ ! -f "$HOME/.gnupg/gpg.conf" ]; then
    logg 'Downloading hardened gpg.conf file to ~/.gpnupg/gpg.conf'
    curl -sSL "{{ .config.gpg }}" > "$HOME/.gnupg/gpg.conf"
    chmod 600 "$HOME/.gnupg/gpg.conf"
  fi
  KEYID_TRIMMED="$(echo "$KEYID" | sed 's/^0x//')"
  if ! gpg --list-secret-keys --keyid-format=long | grep "$KEYID_TRIMMED" > /dev/null; then
    logg info 'Attempting to download the specified public GPG key (`{{ .user.gpg.id }}`) from public keyservers'
    gpg --keyserver hkps://pgp.mit.edu --recv "$KEYID" || EXIT_CODE=$?
    if [ -n "$EXIT_CODE" ]; then
      logg warn 'Error downloading public GPG key'
      logg info 'Retrying after turning on debug mode and using the standard DNS resolver'
      sudo pkill dirmngr
      dirmngr --debug-all --daemon --standard-resolver
      gpg --keyserver hkps://pgp.mit.edu --recv "$KEYID" || EXIT_CODE=$?
      if [ -n "$EXIT_CODE" ]; then
        logg error 'Failed to retrieve public user GPG key on hkps://pgp.mit.edu'
        gpgconf --kill dirmngr
        KEYID="${KEYID^^}"
        KEYID="$(echo "$KEYID" | sed 's/^0X/0x/')"
        if [ -f "$HOME/.gnupg/public/$KEYID.key" ]; then
          gpg --import "$HOME/.gnupg/public/$KEYID.key"
        fi
      else
        logg success 'Successfully imported configured public user GPG key'
      fi
    fi
  else
    logg info 'Key is already in keyring'
  fi
  logg 'Ensuring the trust of the provided public GPG key is set to maximum'
  echo -e "trust\n5\ny" | gpg --command-fd 0 --edit-key "$KEYID"
else
  logg warn '`gpg` appears to be unavailable. Is it installed and on the PATH?'
fi