#!/usr/bin/env bash
# The matrix re-asked the expensive way: one real JVM per spelling, the value supplied by the
# operating system or by -D, and read back through both @ConfigurationProperties and @Value.
#
# This script exists because the in-process matrix was wrong twice before it was right. A
# synthesised property source is not a running Spring Boot application, and when the two
# disagree the running application wins.
set -euo pipefail
cd "$(dirname "$0")/.."
source scripts/env.sh

RUN=(java -jar "$JAR" --spring.profiles.active=envprobe
     --spring.main.web-application-type=none --spring.main.banner-mode=off
     --logging.level.root=OFF)

run_env() {
  echo "\$ $1=secret-value java -jar $JAR"
  env -u DEMO_RELAXED_API_KEY -u DEMO_RELAXED_APIKEY "$1=secret-value" "${RUN[@]}" 2>&1 \
    | clean | grep -E "^(env-var-set|@Config|@Value|Environment)"
  echo
}

run_sysprop() {
  echo "\$ java -D$1=secret-value -jar $JAR"
  env -u DEMO_RELAXED_API_KEY -u DEMO_RELAXED_APIKEY \
    java "-D$1=secret-value" -jar "$JAR" --spring.profiles.active=envprobe \
      --spring.main.web-application-type=none --spring.main.banner-mode=off \
      --logging.level.root=OFF 2>&1 \
    | clean | grep -E "^(@Config|@Value|Environment)"
  echo
}

{
  echo "== real process, real environment: binding demo.relaxed.api-key =="
  echo
  echo "canonical property : demo.relaxed.api-key"
  echo "(MISS) means the property was not found and the declared default was used"
  echo
  echo "--- as an operating-system environment variable ---"
  echo
  run_env DEMO_RELAXED_API_KEY
  run_env DEMO_RELAXED_APIKEY
  echo "--- as a JVM system property (-D), i.e. the 'map' rows of the matrix ---"
  echo
  run_sysprop demo.relaxed.api-key
  run_sysprop demo.relaxed.apiKey
  run_sysprop demo.relaxed.apikey
  run_sysprop demo.relaxed.api.key
  echo "The last one is not a spelling of the property. api.key is two name elements;"
  echo "api-key is one. Nothing relaxed will ever join them."
} > docs/output/02-env-var-binding.txt 2>&1
cat docs/output/02-env-var-binding.txt