#!/bin/sh -e

# Installer to install CLI into your Linux system

DIR=$(dirname "$0")

if [ "$(id -u)" != "0" ]; then
	echo "Superuser privileges are required to run this script."
	sudo "$0" "$@"
	exit $?
fi

OS=$(uname -s | tr '[:upper:]' '[:lower:]')
if [ "$OS" != "linux" ]; then
	echo "Unsupported OS $OS"
	exit 1
fi

MARCH=$(uname -m | tr '[:upper:]' '[:lower:]')
case "$MARCH" in
"ppc64le") ;;
"x86_64") ;;
"x86_32") ;;
"s390x") ;;
"aarch64") ;;
"arm64") ;;
*)
	echo "Unsupported Architecture $MARCH"
	exit 1
	;;
esac

print_usage() {
	echo "Usage:"
	echo "  install [-q, --quiet]"
	echo ""
	echo "Options:"
	echo "-q, --quiet: Enable silent install"
}

quiet=false
for i in "$@"; do
	case "$i" in
	"-q" | "--quiet")
		quiet=true
		;;
	*)
		echo "Unknown option: $i"
		print_usage
		exit 1
		;;
	esac
done

if [ "$quiet" = false ]; then
	echo "Copying files ..."
fi

mkdir -p /usr/local/ibmcloud/bin
mkdir -p /usr/local/ibmcloud/autocomplete

cp -f "${DIR}/uninstall" /usr/local/ibmcloud/
cp -f ${DIR}/bin/* /usr/local/ibmcloud/bin/
cp -f ${DIR}/autocomplete/* /usr/local/ibmcloud/autocomplete/

# /usr/local/ibmcloud/bx/ is deprecated, overwrite only if it exists
if [ -d "/usr/local/ibmcloud/bx/" ]; then
	cp -f ${DIR}/autocomplete/* /usr/local/ibmcloud/bx/
fi

# refresh soft links
rm -f /usr/local/ibmcloud/bin/bluemix || true
rm -f /usr/local/ibmcloud/bin/bx || true
rm -f /usr/local/bin/bluemix || true
rm -f /usr/local/bin/bx || true
rm -f /usr/local/bin/ibmcloud || true
rm -f /usr/local/bin/ibmcloud-analytics || true

ln -sf /usr/local/ibmcloud/bin/ibmcloud /usr/local/ibmcloud/bin/bluemix
ln -sf /usr/local/ibmcloud/bin/ibmcloud /usr/local/ibmcloud/bin/bx
ln -sf /usr/local/ibmcloud/bin/ibmcloud /usr/local/bin/bluemix
ln -sf /usr/local/ibmcloud/bin/ibmcloud /usr/local/bin/bx
ln -sf /usr/local/ibmcloud/bin/ibmcloud /usr/local/bin/ibmcloud

chown -R root:root /usr/local/ibmcloud
chmod -R 755 /usr/local/ibmcloud

clear_autocomplete() {
	file_path=$1
	autocomplete_file="$2"

	if [ -f "$file_path" ]; then
		sed -i '/### Added by IBM Cloud CLI/d' "$file_path"
		sed -i '/### Added by the Bluemix CLI/d' "$file_path"
		sed -i "/source \/usr\/local\/Bluemix\/bx\/$autocomplete_file/d" "$file_path"
	fi
}

# clean old auto-completion for bash
# login shell
clear_autocomplete "/etc/profile" "bash_autocomplete" || true
# non-login shell
clear_autocomplete "/etc/bash.bashrc" "bash_autocomplete" || true

if [ -d "/etc/bash_completion.d" ]; then
	rm -f /etc/bash_completion.d/bluemix_cli_autocomplete || true
fi

# clean old auto-completion for zsh
clear_autocomplete "/etc/zsh/zshrc" "zsh_autocomplete" || true

# remove previous CLI
rm -Rf /usr/local/Bluemix || true

# remove not-used soft link
rm -f /usr/local/bin/bluemix-analytics || true

if [ "$quiet" = false ]; then
	echo "The installation completed successfully."
	echo "To get started, open a terminal window and enter \"ibmcloud help\". Refer to \"http://ibm.biz/cli-auto-completion\" if you want to enable auto-completion for zsh or bash."
	echo ""
	echo "IBM Cloud CLI has a plug-in framework to extend its capability. For plug-in details, see \"http://ibm.biz/install-cli-plugin\"."
	echo ""
	echo "To uninstall, run \"/usr/local/ibmcloud/uninstall\""
fi