#!/bin/sh
# Usage: ./scripts/db-restore.sh <backup-file>
# Uses DATABASE_URL from environment (or .env if present).
# WARNING: drops and recreates the public schema — all existing data is replaced.

set -e

if [ -z "$1" ]; then
  echo "Usage: $0 <backup-file.sql>"
  exit 1
fi

INFILE="$1"

if [ ! -f "$INFILE" ]; then
  echo "Error: file not found: $INFILE"
  exit 1
fi

# Load .env if present and DATABASE_URL not already set
if [ -z "$DATABASE_URL" ] && [ -f ".env" ]; then
  export $(grep -v '^#' .env | grep DATABASE_URL | xargs)
fi

if [ -z "$DATABASE_URL" ]; then
  echo "Error: DATABASE_URL is not set."
  exit 1
fi

echo "Restoring from $INFILE ..."
echo "  -> dropping and recreating public schema..."
psql "$DATABASE_URL" -c "DROP SCHEMA public CASCADE; CREATE SCHEMA public;"
echo "  -> loading backup..."
psql "$DATABASE_URL" -f "$INFILE" -q
echo "Done."