setup_nephele

#!/bin/bash

PKG_NAME="nephele"
BASH_COMPLETION_FILE="nephele.sh"
DEST_PATH="/usr/local/bin"
BASH_COMPLETION_PATH="/etc/bash_completion.d"

print_status() {
	echo
	echo "## $1"
	echo
}

bail() {
    echo
    echo 'Error executing command, exiting'
    exit 1
}

exec_cmd_nobail() {
    echo "+ $1"
    bash -c "$1"
}

exec_cmd() {
    exec_cmd_nobail "$1" || bail
}

setup() {
	print_status "Installing ${PKG_NAME} now"

	OS=$(uname)
	OS_ARCH=$(uname -m)
	PRE_INSTALL_PKGS=""

	if [ ! -x /usr/bin/curl ]; then
	    PRE_INSTALL_PKGS="${PRE_INSTALL_PKGS} curl"
	fi

	# Install the necessary packages needed for performing the installation operation
	if [ "${PRE_INSTALL_PKGS}" != "" ]; then
	    if [ "$OS" == "Linux" ]; then
	        print_status "Populating apt-get cache..."
	        exec_cmd 'apt-get update'

	        print_status "Installing packages required for setup:${PRE_INSTALL_PKGS}"
	        exec_cmd "apt-get install -y${PRE_INSTALL_PKGS} > /dev/null 2>&1"
	    else
	        print_status "Please install '${PRE_INSTALL_PKGS}' and try again"
	        exit 1
	    fi
	fi

	# Verify the operating system and its architecture compatibility before performing the installation operation
	if [ "$OS" == "Linux" ]; then
	    if [ "$OS_ARCH" == "x86_64" ]; then
            PLATFORM="linux_amd64"
        elif [[ "$OS_ARCH" == "i386" || "$OS_ARCH" == "i686" ]]; then
            PLATFORM="linux_386"
	    else
	        echo
	        echo "Your system architecture: ${OS_ARCH}, is not supported. Exiting now"
	        exit 1
		fi
	elif [ "$OS" == "Darwin" ]; then
	    if [ "$OS_ARCH" == "x86_64" ]; then
            PLATFORM="darwin_amd64"
	    else
	        echo
	        echo "Your system architecture: ${OS_ARCH}, is not supported. Exiting now"
	        exit 1
		fi
	else
	    echo
	    echo "Your system OS: ${OS}, is not supported. Exiting now"
	    exit 1
	fi

    # Get the latest release from the repository
	LATEST=$(curl -s https://api.github.com/repos/bharath-srinivas/nephele/tags | grep name  | head -n 1 | sed 's/[," ]//g' | cut -d ':' -f 2)
	URL="https://github.com/bharath-srinivas/nephele/releases/download/$LATEST/nephele_$PLATFORM"

	if [ -z "$LATEST" ]; then
	    echo
	    echo "Error requesting binary file. Exiting now..."
	    exit 1
	else
		print_status "Downloading ${PKG_NAME} binary onto your system. Please wait..."
		exec_cmd "curl -#Lf -o ${DEST_PATH}/${PKG_NAME} ${URL}"
		print_status "Setting appropriate permissions for ${PKG_NAME} to work properly..."
		exec_cmd "chmod +x ${DEST_PATH}/${PKG_NAME}"

	    if [ "$OS" == "Darwin" ]; then
		    mkdir -p ${BASH_COMPLETION_PATH}
		    cat <<EOF >> ~/.bash_profile

if [ -x ${BASH_COMPLETION_PATH} ]; then
    . ${BASH_COMPLETION_PATH}/${BASH_COMPLETION_FILE}
fi
EOF
		fi

        exec_cmd "curl -sLf -o ${BASH_COMPLETION_PATH}/${BASH_COMPLETION_FILE} https://raw.githubusercontent.com/bharath-srinivas/nephele/master/${BASH_COMPLETION_FILE}"
		print_status "Refreshing your terminal session for the changes to take effect..."
		exec_cmd "source ${BASH_COMPLETION_PATH}/${BASH_COMPLETION_FILE}"
		echo
		echo "Successfully installed ${PKG_NAME} on your system"
	fi
}

trap setup EXIT