#!/bin/bash


function print_section() {
	echo "-----------------------"
	echo "   $1"
	echo "-----------------------"
}


function echocall() {
	echo "$@"
	"$@"
}


function unpacklib() {
	local lib=$1
	mkdir -p $lib
	cd $lib
	echocall $AR -x "$prefix/lib/lib$lib.a"
	cd ..
}


function download() {
	mkdir -p download
	cd download
	for package in $packages; do
		if [ ! -f "$package.done" ]; then
			print_section "download $package"
			local vu=url_$package
			local vt=tar_$package
			local vs=sha_$package
			wget -c "${!vu}"
			echo "${!vs} ${!vt}" | sha256sum -c
			touch "$package.done"
		fi
	done
	cd ..
}


function unpack() {
	mkdir -p unpack
	cd unpack
	for package in $packages; do
		if [ ! -f "$package.done" ]; then
			print_section "unpack $package"
			local v=tar_$package
			tar -xf ../download/${!v}
			touch "$package.done"
		fi
	done
	cd ..
}


function build() {
	bits=$1
	host=$2

	toolchain $host
	prefix="$ROOT/usr-$bits"
	export CFLAGS="$ADDCFLAGS -I$prefix/include"
	export CPPFLAGS="-I$prefix/include"
	export LDFLAGS="-L$prefix/lib"
	export PKG_CONFIG_PATH="$prefix/lib/pkgconfig"
	export PKG_CONFIG_LIBDIR="$prefix/lib/pkgconfig"

	mkdir -p build-$bits
	cd build-$bits
	for package in $packages $newpackages; do
		if [ ! -f "$package.done" ]; then
			print_section "build-$bits $package"
			local v=dir_$package
			srcdir="$ROOT/unpack/${!v}"

			mkdir -p $package
			cd $package
			build_$package
			cd ..

			touch "$package.done"
		fi
	done
	cd ..
}