#!/bin/bash

function usage(){
    echo "bash install-key UserName Email TimeToExpireInSecondsFromCurrentTime PhassPhrase"
    exit 0
}

if [ -z "$1" -o -z "$2" -o -z "$3" -o -z "$4" ];then
    usage
fi

name="$1"
email="$2"
expdate="$3"
phassphrase="$4"

cat >gen-key-script <<EOF
     %echo Generating a basic OpenPGP key
     Key-Type: 1
     Key-Length: 2048
     Subkey-Type: 1
     Subkey-Length: 2048
     Name-Real: ${name}
     Name-Email: ${email}
     Expire-Date: seconds=${expdate}
     Passphrase: ${phassphrase}
     %commit
     %echo done
EOF

mkdir -p ../keys/private
mkdir -p ../keys/public
chmod 700 ../keys/private
GNUPGHOME="../keys/private" gpg --batch --generate-key gen-key-script
rm -f gen-key-script

key_path=$(realpath ../keys/private)
pub_key_path=$(realpath ../keys/public)

key_id=$(GNUPGHOME="../keys/private" gpg -k | grep -P "[0123456789abcdefABCDEF]{8,}" | xargs)
GNUPGHOME="../keys/private" gpg --export --armor ${key_id} > "${pub_key_path}/mockgui-gpg-key"

cat >~/.rpmmacros <<EOF
%_signature gpg
%_gpg_path ${key_path}
%_gpg_name ${name} <${email}>
%_gpgbin /usr/bin/gpg
EOF

echo "${phassphrase}" > ../keys/save