#!/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 ..

}