#!/usr/bin/env bash
#
# This script must be run as the same user running offlineimap, which is
# preferably a non-privileged user.
#
# This script should be daemonized (forked to bg) or used as the value of
# the ExecStart= directive in a systemd service file.
set -euxo pipefail

# If "init" is supplied as arg $1, initialize the bridge.
if [[ "$1" == "init" ]]; then

    # Initialize pass
    gpg --generate-key --batch <<EOF
%no-protection
%echo Generating a basic OpenPGP key
Key-Type: RSA
Key-Length: 2048
Name-Real: pass-key
Expire-Date: 0
%commit
%echo done
EOF
    pass init pass-key

    # Kill other instance of protonmail-bridge as only one can be running at a
    # time.
    pkill protonmail-bridge || true

    # Login
    protonmail-bridge --cli "$@"
else
    # Start protonmail-bridge in a fake tty, so it does not quit because of EOF.
    rm -f /tmp/faketty
    mkfifo /tmp/faketty
    protonmail-bridge --cli "$@" < /tmp/faketty
fi