#!/bin/bash

set -e

check_hardware () {
    DISK_REQUIREMENTS=40960;
    MEMORY_REQUIREMENTS=5500;
    CORE_REQUIREMENTS=2;

	AVAILABLE_DISK_SPACE=$(df -m /  | tail -1 | awk '{ print $4 }');

	if [ ${AVAILABLE_DISK_SPACE} -lt ${DISK_REQUIREMENTS} ]; then
		echo "Minimal requirements are not met: need at least $DISK_REQUIREMENTS MB of free HDD space"
		exit 1;
	fi

	TOTAL_MEMORY=$(free -m | grep -oP '\d+' | head -n 1);

	if [ ${TOTAL_MEMORY} -lt ${MEMORY_REQUIREMENTS} ]; then
		echo "Minimal requirements are not met: need at least $MEMORY_REQUIREMENTS MB of RAM"
		exit 1;
	fi

	CPU_CORES_NUMBER=$(cat /proc/cpuinfo | grep processor | wc -l);

	if [ ${CPU_CORES_NUMBER} -lt ${CORE_REQUIREMENTS} ]; then
		echo "The system does not meet the minimal hardware requirements. CPU with at least $CORE_REQUIREMENTS cores is required"
		exit 1;
	fi
}

if [ "$SKIP_HARDWARE_CHECK" != "true" ]; then
	check_hardware
fi