#!/usr/bin/bash

# Init variables
APTPKG_VERSION="0.1.0-dev"

# Show help
show_help(){
	cat > /dev/stdout <<EOF

aptpkg v$APTPKG_VERSION

Easily create debian packages.

Full documentation is being worked on and will be available at

Usage:
	aptpkg [directory]
	aptpkg -h, --help          Show help

EOF
}

# Incorrect aptpkg usage: explain, show help, and exit
error_usage_die(){
	echo "ERROR: " "$1"
	show_help
	exit 1
}

# Check that "build" file exists in directory
check(){
	if ! [ -f "$1/build" ]; then
		echo "No package of that name exists."
		exit 1
	fi
}

# Download a debian package
build_deb(){
	echo "Getting $source"
	wget "$source" -qO dist/"$name"_"$version"-"$rev"-amd64.deb
}

# Determine which function to run
load_build(){
	# shellcheck disable=SC1090
	source "$1/build"

	case "$type" in
		deb)
			build_deb ;;
	esac
}

# Run!
mkdir -p dist

if [ $# -ne 1 ]; then
	error_usage_die "You must provide one directory"
fi

case $1 in
	-h|--help)
		show_help ;;
	*)
		check "$1"
		load_build "$1" ;;
esac