#!/usr/bin/env bash
# Compiles one tiny program twice - once against Spring Authorization Server 1.5.8, once
# against 7.1.1 - and prints the defaults each version hands you. This is how the
# requireProofKey change was found; no documentation was involved.
set -u
cd "$(dirname "$0")/.."
OUT=../docs/output/as-settings-defaults.txt
mkdir -p ../docs/output
WORK=$(mktemp -d); trap 'rm -rf "$WORK"' EXIT
mkdir -p "$WORK/old"

fetch() { # group artifact version
  curl -sL -o "$WORK/old/$2-$3.jar" \
    "https://repo1.maven.org/maven2/$1/$2/$3/$2-$3.jar"
}
for a in spring-security-oauth2-authorization-server:1.5.8 spring-security-oauth2-core:6.5.1 \
         spring-security-oauth2-jose:6.5.1 spring-security-core:6.5.1 \
         spring-security-oauth2-client:6.5.1 spring-security-web:6.5.1; do
  fetch org/springframework/security "${a%%:*}" "${a##*:}"
done
for a in spring-core:6.2.7 spring-jcl:6.2.7; do
  fetch org/springframework "${a%%:*}" "${a##*:}"
done

mvn -B -q -pl auth-server dependency:build-classpath \
    -Dmdep.outputFile=/tmp/as-cp.txt -DincludeScope=compile >/dev/null 2>&1
CP_NEW=$(cat /tmp/as-cp.txt)
CP_OLD=$(ls "$WORK"/old/*.jar | tr '\n' ':')

{
  echo "# Defaults of ClientSettings.builder().build() and TokenSettings.builder().build(),"
  echo "# read out of the jars themselves rather than from documentation."
  echo "# Source: tools/SettingsDefaults.java"
  echo
  echo "=== Spring Authorization Server 1.5.8 (last release of the standalone project) ==="
  javac -nowarn -cp "$CP_OLD" -d "$WORK/out-old" tools/SettingsDefaults.java \
    && java -cp "$CP_OLD:$WORK/out-old" SettingsDefaults
  echo
  echo "=== Spring Authorization Server 7.1.1 (inside Spring Security, Boot 4.1.1 BOM) ==="
  javac -nowarn -cp "$CP_NEW" -d "$WORK/out-new" tools/SettingsDefaults.java \
    && java -cp "$CP_NEW:$WORK/out-new" SettingsDefaults

  echo
  echo "# The same question on the CLIENT side. Source: tools/ClientPkceDefault.java"
  mvn -B -q -pl oidc-client dependency:build-classpath \
      -Dmdep.outputFile=/tmp/cl-cp.txt -DincludeScope=compile >/dev/null 2>&1
  CP_CLIENT=$(cat /tmp/cl-cp.txt)
  echo
  echo "=== spring-security-oauth2-client 6.5.1 ==="
  javac -nowarn -cp "$CP_OLD" -d "$WORK/co" tools/ClientPkceDefault.java \
    && java -cp "$CP_OLD:$WORK/co" ClientPkceDefault
  echo
  echo "=== spring-security-oauth2-client 7.1.1 (Boot 4.1.1 BOM) ==="
  javac -nowarn -cp "$CP_CLIENT" -d "$WORK/cn" tools/ClientPkceDefault.java \
    && java -cp "$CP_CLIENT:$WORK/cn" ClientPkceDefault
  echo
  echo "# Both sides flipped in the 7.x line. Spring-to-Spring therefore still works;"
  echo "# a 7.1 authorization server in front of a 6.x or hand-rolled client does not."
} > "$OUT" 2>&1
cat "$OUT"