#!/bin/bash

set -e
cd "$(dirname "$0")/.."
. tools/_util.sh

[ -d build/classes ] || {
  echo "No build/classes - run tools/build.sh first"
  exit 1
}

JUNIT_JAR=$(ls lib/junit/junit-platform-console-standalone-*.jar 2>/dev/null | head -n 1)
[ -n "$JUNIT_JAR" ] || {
  echo "JUnit standalone jar missing from lib/junit/"
  exit 1
}

PROD_CP="$(module_cp $MODULES)"

echo "=== Compiling test sources ==="
: >"$TMP/tests.txt"
for m in $MODULES; do
  [ -d "$m/src/test/java" ] && find "$m/src/test/java" -name '*.java' >>"$TMP/tests.txt"
done
if [ ! -s "$TMP/tests.txt" ]; then
  echo "  (no test sources)"
  exit 0
fi

mkdir -p build/test-classes
javac --release "$JAVA_RELEASE" -d build/test-classes \
  -cp "$PROD_CP$SEP$JUNIT_JAR$SEP$LIBCP" "@$TMP/tests.txt"

echo "=== Running tests ==="

TEST_CP="$PROD_CP${SEP}build/test-classes"
for j in lib/*/*.jar; do
  case "$j" in *junit-platform-console-standalone* | lib/jacoco/*) continue ;; esac
  TEST_CP="$TEST_CP$SEP$j"
done

AGENT_JAR=$(ls lib/mockito/byte-buddy-agent-*.jar 2>/dev/null | head -n 1)
AGENT_ARG=""
[ -n "$AGENT_JAR" ] && AGENT_ARG="-javaagent:$AGENT_JAR"

JACOCO_AGENT=lib/jacoco/jacocoagent.jar
JACOCO_CLI=lib/jacoco/jacococli.jar
mkdir -p build/coverage
[ -n "$AGENT_ARG" ] && AGENT_ARG="$AGENT_ARG "
AGENT_ARG="$AGENT_ARG-javaagent:$JACOCO_AGENT=destfile=build/coverage/jacoco.exec"

java $AGENT_ARG -jar "$JUNIT_JAR" execute \
  --class-path "$TEST_CP" --scan-class-path --details=summary

echo "=== Generating coverage report ==="
CLASSFILES=""
SOURCEFILES=""
for m in $MODULES; do
  CLASSFILES="$CLASSFILES --classfiles build/classes/$m"
  [ -d "$m/src/main/java" ] && SOURCEFILES="$SOURCEFILES --sourcefiles $m/src/main/java"
done
java -jar "$JACOCO_CLI" report build/coverage/jacoco.exec \
  $CLASSFILES $SOURCEFILES \
  --html build/coverage/html --xml build/coverage/jacoco.xml
echo "  build/coverage/html/index.html"