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

PROJECT_DIR="/home/def/otb_billing"
STATE_FILE="$PROJECT_DIR/PROJECT_STATE.md"

if [ ! -f "$STATE_FILE" ]; then
  echo "ERROR: $STATE_FILE not found"
  exit 1
fi

VERSION="${1:-}"
if [ -z "$VERSION" ]; then
  VERSION="$(grep -m1 '^Version:' "$STATE_FILE" | sed 's/^Version:[[:space:]]*//')"
fi

TODAY="$(date +%F)"

sed -i \
  -e "s/^Last Updated: .*/Last Updated: $TODAY/" \
  -e "s/^Version: .*/Version: $VERSION/" \
  "$STATE_FILE"

echo "Updated $STATE_FILE"
echo "Last Updated: $TODAY"
echo "Version: $VERSION"