uninstall

#!/bin/sh

# POSIX

verbose=0

# Print usage to stdout.
# Arguments:
#   None
# Outputs:
#   print usage with examples.
show_help() {
	cat <<EOF
uninstall --prefix /usr/local

Options:
	--prefix/-P:		base bath where all files will be deployed (default /usr/local if root, ~/.local if not)
	--help/-h:		show this message
	-v:			show more verbosity
EOF
}

# Parse arguments
while :; do
	case $1 in
	-h | --help)
		# Call a "show_help" function to display a synopsis, then exit.
		show_help
		exit
		;;
	-v | --verbose)
		shift
		verbose=1
		;;
	-p | --path)
		if [ -n "$2" ]; then
			dest_path="$2"
			shift
			shift
		fi
		;;
	-P | --prefix)
		if [ -n "$2" ]; then
			prefix="$2"
			shift
			shift
		fi
		;;
	*) # Default case: If no more options then break out of the loop.
		break ;;
	esac
done

if [ -z "${prefix}" ]; then
	prefix="/usr/local"
	# in case we're not root, just default to the home directory
	if [ "$(id -u)" -ne 0 ]; then
		prefix="${HOME}/.local"
	fi
fi
dest_path="${prefix}/bin"
template_dest_path="${prefix}/share/blincus/templates"
template_config_dest_path="${HOME}/.config/blincus/templates"
build_dest_path="${prefix}/share/blincus/build"
script_dest_path="${prefix}/share/blincus"
script_config_dest_path="${HOME}/.config/blincus"
man_dest_path="${prefix}/share/man/man1"
completion_dest_path="${prefix}/share/bash-completion/completions/"
dest_path="${prefix}/bin"
init_dest_path="${prefix}/share/blincus/cloud-init"
init_config_dest_path="${HOME}/.config/blincus/cloud-init"
profile_dest_path="${prefix}/share/blincus/profiles"
profile_config_dest_path="${HOME}/.config/blincus/profiles"
packer_dest_path="${prefix}/share/blincus/recipes"
packer_config_dest_path="${HOME}/.config/blincus/recipes"

set -o errexit
set -o nounset
# set verbosity
if [ "${verbose}" -ne 0 ]; then
	set -o xtrace
fi

[ ! -w "${dest_path}" ] && printf >&2 "Cannot write into %s, permission denied.\n" "${dest_path}" && exit 1
#[ ! -w "${man_dest_path}" ] && printf >&2 "Cannot write into %s, permission denied.\n" "${man_dest_path}" && exit 1

# uninstall
for file in "${dest_path}/blincus"*; do
	[ -e "${file}" ] && rm "${file}"
done
for file in "${man_dest_path}/blincus"*; do
	[ -e "${file}" ] && rm "${file}"
done
for file in "${completion_dest_path}/blincus"*; do
	[ -e "${file}" ] && rm "${file}"
done
[ -d "${script_dest_path}" ] && rm -rf "${script_dest_path}"
[ -d "${build_dest_path}" ] && rm -rf "${build_dest_path}"
[ -d "${script_config_dest_path}" ] && rm -rf "${script_config_dest_path}"

printf >&2 "\033[1;32m Thank you for using Blincus. Uninstall complete.\n\033[0m"
printf >&2 "\033[0m Removed shell scripts located in \033[1;31m%s\n\033[0m" "${dest_path}"
#printf >&2 "\033[0m Removed manpages located in \033[1;31m%s\n\033[0m" "${man_dest_path}"
printf >&2 "\033[0m Removed configuration directory located in \033[1;31m%s\n\033[0m" "${script_config_dest_path}"