#!/bin/bash

set -e
DEBUG=
SILENT="-s"
QUIET="-q"
for param in $1 $2 ; do
  if [ $param ] ; then
    case $param in
	    debug )
		    DEBUG="debug" ;;
        * )
            KOJI_BUILD_FQDN=$param ;;
    esac
  else
	  break
  fi
done

if [ $DEBUG ] ; then
    set -xe
    SILENT=
    QUIET="-v"
fi

# load required parameters
SCRIPT_DIR="$(echo ~)/bin"
if [ ! -f "$SCRIPT_DIR"/koji-parameters.sh ] ; then
    echo "$SCRIPT_DIR/koji-parameters.sh NOT found - aborting"
    exit 1
fi
source "$SCRIPT_DIR"/koji-parameters.sh

# if no build server given, deploy locally
if [ -z $KOJI_BUILD_FQDN ] ; then
    KOJI_BUILD_FQDN=$KOJI_HUB_FQDN
fi

# check that the target exists
RESP=$(nc -z $KOJI_BUILD_FQDN 22 2>&1 | grep succeeded)
if [[ -z $RESP ]] ; then
        echo "I cannot connect to $KOJI_BUILD_FQDN! Is it online? "
        echo "Options:"
        echo "- turn on the server"
        echo "- add this server into the /etc/hosts file on this server"
        exit 1
fi    

# install any required packages
if [[ -z $(dnf list installed | grep epel-release) ]] ; then
    dnf install -y epel-release $QUIET
fi
if [[ -z $(dnf list installed | grep netcat) ]] ; then
    dnf install -y netcat $QUIET
fi

## On the HUB
# Add the host entry for the koji builder to the database
sudo -u kojiadmin koji add-host "$KOJI_BUILD_FQDN" "$RPM_ARCH"
# Add the host to the createrepo channel
sudo -u kojiadmin koji add-host-to-channel "$KOJI_BUILD_FQDN" createrepo
# Add server capacity
sudo -u kojiadmin koji edit-host --capacity="$KOJID_CAPACITY" "$KOJI_BUILD_FQDN"
# Generate a certificate for the builder
if [ ! -f $SCRIPT_DIR/koji-gencert.sh ] ; then
    curl $SILENT $SCRIPT_GIT/koji-gencert.sh > $SCRIPT_DIR/koji-gencert.sh
    chmod a+x $SCRIPT_DIR/koji-gencert.sh
fi
pushd "$KOJI_PKI_DIR"
$SCRIPT_DIR/koji-gencert.sh "$KOJI_BUILD_FQDN" "/C=$COUNTRY_CODE/ST=$STATE/L=$LOCATION/O=$ORGANIZATION/CN=$KOJI_BUILD_FQDN"
popd
# check if local install or remote
if [[ $KOJI_BUILD_FQDN = $KOJI_HUB_FQDN ]] ; then
    # deploy locally
    echo "All-in-one: Hub will now be a build server as well" 
    if [ ! -f $SCRIPT_DIR/koji-deploy-builder.sh ] ; then
        curl $SILENT $SCRIPT_GIT/koji-deploy-builder.sh > $SCRIPT_DIR/koji-deploy-builder.sh
        chmod o+x $SCRIPT_DIR/koji-deploy-builder.sh
    fi
    koji-deploy-builder.sh $DEBUG
else
    # deploy to specified server

    ## On the HUB
    # check if nfs has been installed on the hub (only need to install once) 
    if [[ -z $(dnf list installed | grep nfs-server) ]] ; then
        # add nfs share for koji files direcory to hub
        curl $SILENT $SCRIPT_GIT/koji-deploy-nfs-server.sh > $SCRIPT_DIR/koji-deploy-nfs-server.sh
        chmod o+x $SCRIPT_DIR/koji-deploy-nfs-server.sh
        koji-deploy-nfs-server.sh $DEBUG
    fi

    # add build server to nfs exports line for /mnt/koji
    sed '/^\/mnt\/koji/ s/$/ $KOJI_BUILD_FQDN(ro,no_root_squash)/' /etc/exports

    # generate a hub ssl key if there isn't one already (for scp & ssh to builder)
    if [ ! -f /root/.ssh/id-rsa ] ; then
        # create a ssh key on build server
        mkdir -p ~/.ssh
        ssh-keygen -t rsa -f /root/.ssh/id_rsa -N ""
    fi
    
    ## On the BUILDER
    # copy the server key into authorized keys on the build server
    ssh-copy-id -i ~/.ssh/id_rsa.pub $KOJI_BUILD_FQDN
    # copy across the ssl keys
    ssh $QUIET root@$KOJI_BUILD_FQDN mkdir $KOJI_PKI_DIR
    scp $QUIET $KOJI_PKI_DIR/$KOJI_BUILD_FQDN.pem root@$KOJI_BUILD_FQDN:$KOJI_PKI_DIR/.
    scp $QUIET $KOJI_PKI_DIR/koji_ca_cert.crt root@$KOJI_BUILD_FQDN:$KOJI_PKI_DIR/.
    # copy across the parameter files (we built them on the hub)
    ssh $QUIET root@$KOJI_BUILD_FQDN mkdir -p $SCRIPT_DIR
    scp $QUIET $SCRIPT_DIR/koji-parameters.sh root@$KOJI_BUILD_FQDN:$SCRIPT_DIR/koji-parameters.sh
    # pull down the required scripts
    ssh $QUIET root@$KOJI_BUILD_FQDN "curl $SILENT $SCRIPT_GIT/koji-deploy-nfs-client.sh > $SCRIPT_DIR/koji-deploy-nfs-client.sh"
    ssh $QUIET root@$KOJI_BUILD_FQDN "curl $SILENT $SCRIPT_GIT/koji-deploy-builder.sh > $SCRIPT_DIR/koji-deploy-builder.sh"
    # make them executeable
    ssh $QUIET root@$KOJI_BUILD_FQDN "chmod o+x $SCRIPT_DIR/*"
    
    # connect to nfs share
    ssh $QUIET root@$KOJI_BUILD_FQDN $SCRIPT_DIR/koji-deploy-nfs-client.sh $DEBUG
    # deploy koji builder
    ssh $QUIET root@$KOJI_BUILD_FQDN $SCRIPT_DIR/koji-deploy-builder.sh $DEBUG
fi