#!/bin/bash
PACKAGE_NAME=jetbrains-java-21-jre
PACKAGE_VERSION=21.0.9
PACKAGE_REL=1
PACKAGE_DESC='JetBrains Runtime 21 (JBR)'
JVM_ARCHIVE=java-21-jetbrains-amd64.tar.gz
JVM_DIR=java-21-jetbrains-amd64

echo '--- CREATE DIRS'
mkdir -p package/usr/lib/jvm/$JVM_DIR
mkdir -p package/usr/share/licenses/$JVM_DIR

echo '--- UNPACK ARCHIVE'
tar -xf ../$JVM_ARCHIVE -C package/usr/lib/jvm/$JVM_DIR --strip-component=1

echo '--- MOVE LICENSE FILES'
mv package/usr/lib/jvm/$JVM_DIR/legal/* package/usr/share/licenses/$JVM_DIR/
rmdir package/usr/lib/jvm/$JVM_DIR/legal

echo '--- GENERATE control FILE'
mkdir -p package/DEBIAN/
PKG_SIZE=$(du -ks package/usr | cut -f1)
sed "s/__PACKAGE_NAME__/$PACKAGE_NAME/" control | \
sed "s/__PACKAGE_VERSION__/$PACKAGE_VERSION/" | \
sed "s/__PACKAGE_REL__/$PACKAGE_REL/" | \
sed "s/__PACKAGE_DESC__/$PACKAGE_DESC/" | \
sed "s/__PKG_SIZE__/$PKG_SIZE/" > package/DEBIAN/control

echo '--- BUILD PACKAGE'
dpkg-deb --build ./package $JVM_DIR.deb
chown 1000:1000 $JVM_DIR.deb

echo '--- CLEAR'
rm -rf package/