#!/bin/bash

# Parse connection details from ZXDB_URL in .env
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
ENV_FILE="$SCRIPT_DIR/../.env"

if [ ! -f "$ENV_FILE" ]; then
  echo "Error: .env file not found at $ENV_FILE" >&2
  exit 1
fi

ZXDB_URL=$(grep '^ZXDB_URL=' "$ENV_FILE" | cut -d= -f2-)
if [ -z "$ZXDB_URL" ]; then
  echo "Error: ZXDB_URL not set in .env" >&2
  exit 1
fi

# Unescape backslash-escaped characters (e.g. \$ -> $)
ZXDB_URL=$(echo "$ZXDB_URL" | sed 's/\\\(.\)/\1/g')

# Extract user, password, host, port, database from mysql://user:pass@host:port/db
DB_USER=$(echo "$ZXDB_URL" | sed -n 's|^mysql://\([^:]*\):.*|\1|p')
DB_PASS=$(echo "$ZXDB_URL" | sed -n 's|^mysql://[^:]*:\([^@]*\)@.*|\1|p')
DB_HOST=$(echo "$ZXDB_URL" | sed -n 's|^mysql://[^@]*@\([^:]*\):.*|\1|p')
DB_PORT=$(echo "$ZXDB_URL" | sed -n 's|^mysql://[^@]*@[^:]*:\([0-9]*\)/.*|\1|p')
DB_NAME=$(echo "$ZXDB_URL" | sed -n 's|^mysql://[^/]*/\(.*\)|\1|p')

MYSQL_ARGS="-u${DB_USER} -p${DB_PASS} -h${DB_HOST} -P${DB_PORT}"

echo "DROP DATABASE IF EXISTS \`${DB_NAME}\`; CREATE DATABASE \`${DB_NAME}\`;" | mysql $MYSQL_ARGS
mysql $MYSQL_ARGS < ZXDB/ZXDB_mysql.sql
{
  echo "SET @OLD_SQL_MODE := @@SESSION.sql_mode;"
  echo "SET SESSION sql_mode := REPLACE(@@SESSION.sql_mode, 'ONLY_FULL_GROUP_BY', '');"
  cat ZXDB/scripts/ZXDB_help_search.sql
  echo "SET SESSION sql_mode := @OLD_SQL_MODE;"
#  echo "CREATE ROLE IF NOT EXISTS 'zxdb_readonly';"
#  echo "GRANT SELECT, SHOW VIEW ON \`zxdb\`.* TO 'zxdb_readonly';"
} | mysql --force $MYSQL_ARGS "$DB_NAME"
mysqldump --no-data -uroot -p -h${DB_HOST} -P${DB_PORT} "$DB_NAME" > ZXDB/ZXDB_mysql_STRUCTURE_ONLY.sql