#!/usr/bin/env bash
set -Eeuo pipefail

die() {
  printf '[kaidi-baota] ERROR: %s\n' "$1" >&2
  exit 1
}

SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
RELEASE_ROOT=$(cd "$SCRIPT_DIR/.." && pwd)
APP_JAR="$RELEASE_ROOT/app.jar"
PUBLIC_INDEX="$RELEASE_ROOT/public/index.html"
VERSION_FILE="$RELEASE_ROOT/VERSION"

[ -s "$APP_JAR" ] || die "app.jar is missing from $RELEASE_ROOT"
[ -s "$PUBLIC_INDEX" ] || die "public/index.html is missing from $RELEASE_ROOT"
[ -s "$VERSION_FILE" ] || die "VERSION is missing from $RELEASE_ROOT"

JAVA_BIN=${KAIDI_JAVA_BIN:-}
if [ -z "$JAVA_BIN" ] && [ -n "${JAVA_HOME:-}" ]; then
  JAVA_BIN="$JAVA_HOME/bin/java"
fi
if [ -z "$JAVA_BIN" ]; then
  JAVA_BIN=$(command -v java 2>/dev/null || true)
fi
[ -n "$JAVA_BIN" ] || die "Java 17 or newer was not found"
if [[ "$JAVA_BIN" == */* ]]; then
  [ -x "$JAVA_BIN" ] || die "Java executable is not available at $JAVA_BIN"
else
  command -v "$JAVA_BIN" >/dev/null 2>&1 || die "Java executable $JAVA_BIN is not available"
fi

export SPRING_PROFILES_ACTIVE=${SPRING_PROFILES_ACTIVE:-production}
export SERVER_ADDRESS=${SERVER_ADDRESS:-127.0.0.1}
export SERVER_PORT=${SERVER_PORT:-18080}
export FINANCE_SETUP_ENABLED=${FINANCE_SETUP_ENABLED:-false}
export FINANCE_BOOTSTRAP_ENABLED=${FINANCE_BOOTSTRAP_ENABLED:-false}
export FINANCE_UPDATE_ENABLED=${FINANCE_UPDATE_ENABLED:-false}
export FILE_SCANNER_ENABLED=${FILE_SCANNER_ENABLED:-false}
export FINANCE_STATIC_LOCATIONS=${FINANCE_STATIC_LOCATIONS:-file:$RELEASE_ROOT/public/}
export UPDATE_CURRENT_VERSION_FILE=${UPDATE_CURRENT_VERSION_FILE:-$VERSION_FILE}
export APP_VERSION=${APP_VERSION:-$(tr -d '\r\n' < "$VERSION_FILE")}

if [ "$FINANCE_SETUP_ENABLED" != true ]; then
  for name in DB_URL DB_USERNAME DB_PASSWORD FIELD_ENCRYPTION_KEY FILE_STORAGE_ROOT FILE_STORAGE_TEMP; do
    [ -n "${!name:-}" ] || die "$name must be configured in the Baota project environment"
  done
  for directory in "$FILE_STORAGE_ROOT" "$FILE_STORAGE_TEMP"; do
    [ -d "$directory" ] || die "Storage directory $directory does not exist"
    [ -w "$directory" ] || die "Startup user cannot write storage directory $directory"
  done
fi

cd "$RELEASE_ROOT"
exec "$JAVA_BIN" -XX:MaxRAMPercentage=70 -Dfile.encoding=UTF-8 -jar "$APP_JAR"