#!/bin/bash

set -e

sdk_user=
sdk_pass=
sdk_dev=http://www.steinberg.net/nc/en/company/developers/sdk_download_portal
sdk_tmp_dir=$(mktemp -q -d --tmpdir=/tmp vst-sdk-installer.XXX)
sdk_cookie=$sdk_tmp_dir/steinberg-cookie
user_agent="Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0"
sdk_checksum=74e41da563a1c91e86677530936cb46a15f1af76b29d4c1877134cf29eafb718
sdk_dir=/usr/include/vst

cd $sdk_tmp_dir

[ -f $sdk_cookie ] && rm -f $sdk_cookie || true

echo
echo "Storing cookie."
echo "---------------"
echo

curl -# -c $sdk_cookie \
  -A "$user_agent" \
  -d user=$sdk_user \
  -d pass=$sdk_pass \
  -d logintype=login \
  -L $sdk_dev.html > /dev/null

echo
echo
echo "Starting download."
echo "------------------"
echo

sdk_download_url=$(curl -s -b $sdk_cookie \
  -A "$user_agent" \
  -d vst_status=0 \
  -d sdk_daten_speichern="Download+VST+SDK+now" \
  -L $sdk_dev/vst_360_audio_plug_ins_sdk.html \
  | grep vstsdk | cut -d '"' -f 2 | sed 's/\&/\&/g')

sdk_zip=${sdk_download_url#*downloads/}
sdk_zip=${sdk_zip%.zip*}.zip

curl -# -b $sdk_cookie \
  -A "$user_agent" \
  -C - \
  -O -J -L http://www.steinberg.net/$sdk_download_url | cat

echo
echo "Checking integrity of zip."
echo "--------------------------"
echo

echo "$sdk_checksum  $sdk_tmp_dir/$sdk_zip" | sha256sum -c

echo
echo "Extracting header files from zip."
echo "---------------------------------"
echo

unzip -j -o $sdk_zip "*aeffect*" -d $sdk_dir

echo
echo "Patching header files."
echo "----------------------"
echo

sed -i '69s/__cdecl/\/\/__cdecl/' $sdk_dir/aeffect.h

echo
echo "Removing temporary directory."
echo "-----------------------------"
echo

rm -v -r -f $sdk_tmp_dir