#!/bin/bash

# Copyright (c) 2023 Habana Labs, Ltd. an Intel Company.Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

SOURCE_DIR="$(cd "$(dirname "$0")" && pwd)"
source $SOURCE_DIR/config.properties

export PDSH_RCMD_TYPE=ssh

HOSTFILE="${HOSTFILE:-$SOURCE_DIR/hostfile}";
BASE_PDSH_CMD="pdsh -w ^$HOSTFILE"
BASE_DIR="$SOURCE_DIR/utilities"

if [ -z "$(dpkg -l | awk "/^ii  pdsh/")" ]; then
    echo "!!!! ERROR: pdsh is not installed in your system. Please install pdsh before proceeding !!!!"
    exit 1
fi


show_help()
{
    cat <<EOF
Usage: ./configure_system.sh [-c command] [-r command] [-p command] [-d command] [-h]
   -c configure ... Configure Command to setup ssh, hugepages, duplicate_repo, duplicate_datasets, all
                    i.e (./configure_system.sh -c ssh, ssh_home, hugepages, duplicate_repo, duplicate_datasets, all)
   -r reload    ... Reload (driver)
                    i.e (./configure_system.sh -r driver)
   -p ports     ... Control/check Gaudi Network Ports (up, down, status, idc)
                    i.e (./configure_system.sh -p status)
   -d docker    ... Configure Docker Environment (install-compose, pull-base)
                    i.e (./configure_system.sh -p status)
   -s ............. Secret Commands. Used to run any bash commands
   -h ............. Optional; show help
This wrapper script configures and updates nodes specified in hostfile

Requirements:
- pdsh
EOF
}

eval "$(ssh-agent -s)"
ssh-add  "$SOURCE_DIR/ssh/mint_rsa"

while getopts :c:r:p:d:s:h flag
do
    case "${flag}" in
        c)  action=${OPTARG}
            case "$action" in
                "ssh") 
                    $BASE_DIR/setup_passwordless_ssh.sh
                ;;
                "ssh_home") 
                    $BASE_DIR/setup_home_directory.sh
                ;;
                "hugepages")
                    $BASE_PDSH_CMD "$BASE_DIR/set_hugepages.sh"
                ;;
                "cpu") 
                    $BASE_PDSH_CMD "echo -n "performance" | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor"
                ;;
                "install_driver")
                    $BASE_PDSH_CMD "$BASE_DIR/kubevirt_docker.sh $DRIVER_VERSION"
                ;;
                "duplicate_repo") 
                    $BASE_PDSH_CMD mkdir -p $DOCKER_DIR
                    $BASE_PDSH_CMD mkdir -p $SOURCE_DIR
                    for IP in `cat $HOSTFILE`; do
                        rsync -ahvzgop $DOCKER_DIR/ $USER@$IP:$DOCKER_DIR
                        rsync -ahvzgop --exclude "$DOCKER_DIR" $SOURCE_DIR/ $USER@$IP:$SOURCE_DIR
                    done
                ;;
                "duplicate_dataset") 
                    $BASE_PDSH_CMD mkdir -p $DATASET_DIR
                    echo "Experimental!!! Running sequentially and not preferred method of copying large datasets to x machines"
                    for IP in `cat $HOSTFILE`; do
                        rsync -ahvzgop $DATASET_DIR/ $USER@$IP:$DATASET_DIR
                    done
                ;;
                "all") 
                    sudo apt-get install pdsh -y
                    $BASE_DIR/setup_passwordless_ssh.sh

                    $BASE_PDSH_CMD mkdir -p $DOCKER_DIR
                    $BASE_PDSH_CMD mkdir -p $SOURCE_DIR

                    for IP in `cat $HOSTFILE`; do
                        rsync -ahvzgop $DOCKER_DIR/ $USER@$IP:$DOCKER_DIR
                        rsync -ahvzgop --exclude "$DOCKER_DIR" $SOURCE_DIR/ $USER@$IP:$SOURCE_DIR
                    done

                    $BASE_PDSH_CMD "$BASE_DIR/set_hugepages.sh"
                    $BASE_PDSH_CMD "echo -n "performance" | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor"
                ;;
                *)
                    echo "No action chosen. Exiting now ..."
                    exit 0
                ;;
            esac
        ;;
        r)  action=${OPTARG}
            case "$action" in
                "driver") 
                    $BASE_PDSH_CMD "$BASE_DIR/reload_driver.sh"
                ;;
                *)
                    echo "No action chosen. Exiting now ..."
                    exit 0
                ;;
            esac
        ;;
        p)  action=${OPTARG}
            case "$action" in
                "up") 
                    $BASE_PDSH_CMD "$BASE_DIR/manage_network_ifs.sh --up --l3"
                ;;
                "down") 
                    $BASE_PDSH_CMD "$BASE_DIR/manage_network_ifs.sh --down"
                ;;
                "status") 
                    $BASE_PDSH_CMD "$BASE_DIR/manage_network_ifs.sh --status"
                ;;
                "idc") 
                    $BASE_PDSH_CMD "$BASE_DIR/l3-routes.sh "
                ;;
                *)
                    echo "No action chosen. Exiting now ..."
                    exit 0
                ;;
            esac
        ;;
        d)  action=${OPTARG}
            case "$action" in
                "install-compose") 
                    $BASE_PDSH_CMD "$BASE_DIR/install_docker_compose.sh"
                ;;
                "pull-base") 
                    $BASE_PDSH_CMD "docker pull $BASE_IMAGE"
                ;;
                *)
                    echo "No action chosen. Exiting now ..."
                    exit 0
                ;;
            esac
        ;;
        s)  
            shift 1;
            $BASE_PDSH_CMD "$@"
        ;;
        h) show_help >&2; exit 0 ;;
        *) show_help >&2; exit 0 ;;
    esac
done