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

readonly EXPECTED_SHA256="e439bd1c48ce654748c4f333b874a61465702ceb18f29ee017c3f9bc47738c23"
readonly MAVEN_REPOSITORY="${HOME}/.m2/repository"
readonly INSTALLED_JAR="${MAVEN_REPOSITORY}/cn/com/kingbase/kingbase8/9.0.0/kingbase8-9.0.0.jar"

sha256_file() {
  if command -v sha256sum >/dev/null 2>&1; then
    sha256sum "$1" | awk '{print $1}'
  elif command -v shasum >/dev/null 2>&1; then
    shasum -a 256 "$1" | awk '{print $1}'
  else
    echo "No SHA256 utility is available; install sha256sum or shasum." >&2
    return 1
  fi
}

if [[ -z "${KINGBASE_JDBC_JAR:-}" ]]; then
  echo "KINGBASE_JDBC_JAR is not set." >&2
  echo "Set it to the absolute path of the authorized Kingbase JDBC 9.0.0 vendor driver." >&2
  exit 1
fi

if [[ ! -f "${KINGBASE_JDBC_JAR}" ]]; then
  echo "KINGBASE_JDBC_JAR does not point to an existing regular file." >&2
  exit 1
fi

source_sha256="$(sha256_file "${KINGBASE_JDBC_JAR}")"
if [[ "${source_sha256}" != "${EXPECTED_SHA256}" ]]; then
  echo "Kingbase JDBC 9.0.0 source checksum mismatch." >&2
  exit 1
fi

mvn org.apache.maven.plugins:maven-install-plugin:3.1.2:install-file \
  -Dfile="${KINGBASE_JDBC_JAR}" \
  -DgroupId=cn.com.kingbase \
  -DartifactId=kingbase8 \
  -Dversion=9.0.0 \
  -Dpackaging=jar \
  -DgeneratePom=true \
  -Dmaven.repo.local="${MAVEN_REPOSITORY}"

if [[ ! -f "${INSTALLED_JAR}" ]]; then
  echo "Kingbase JDBC 9.0.0 installation failed: local Maven artifact is missing." >&2
  exit 1
fi

installed_sha256="$(sha256_file "${INSTALLED_JAR}")"
if [[ "${installed_sha256}" != "${EXPECTED_SHA256}" ]]; then
  echo "Kingbase JDBC 9.0.0 installed artifact checksum mismatch." >&2
  exit 1
fi

echo "Kingbase JDBC 9.0.0 provisioning PASS."