#!/bin/sh -e

# The directory where backups are stored
BACKUP_DIRECTORY="/backups"

# Check if a file name was provided as a parameter
if [ $# -eq 0 ]; then
  echo "No file name provided. Please provide a file name to check."
  exit 1
fi

# The file name is taken from the first argument provided to the script
file_name="$1"

# Full path to the file
full_file_path="${BACKUP_DIRECTORY}/${file_name}"

# Check if the file exists
if [ -f "$full_file_path" ]; then
  echo "File ${file_name} exists."
else
  echo "File ${file_name} does not exist."
  exit 1
fi

# MongoDB connection parameters
MONGO_URI="${MONGO_URI}"

echo "Dropping the database..."
mongo "$MONGO_URI" --eval "db.dropDatabase()"

echo "Restoring the database from the backup..."
gunzip -c "${full_file_path}" | mongorestore --archive --uri="$MONGO_URI"

echo "Backup restored successfully."