@echo off
setlocal enabledelayedexpansion
chcp 65001 >nul
title Initialize And Startup MySQL

:: Check if running as administrator
net session >nul 2>&1
if %errorLevel% neq 0 (
    echo Please run this script as Administrator!
    pause
    exit /b 1
)

:: Configuration parameters - modify these values according to your environment
set "MYSQL_HOME=%INSTALLPATH%"
set "MYSQL_BIN_PATH=%INSTALLPATH%\bin"
set "MYSQLD_PATH=%INSTALLPATH%\bin\mysqld.exe"
set "MY_INI_PATH=%INSTALLPATH%\my.ini"
set "SERVICE_NAME=x_database"
set "NEW_ROOT_PASSWORD=Root@2025"
set "DATA_DIR=%INSTALLPATH%\data"

:: 1. Check if mysqld.exe exists
if not exist "%MYSQLD_PATH%" (
    echo Error: mysqld.exe not found at %MYSQLD_PATH%
    pause
    exit /b 1
)

:: 2. Check if my.ini exists
if not exist "%MY_INI_PATH%" (
    echo Error: Configuration file my.ini not found at %MY_INI_PATH%
    pause
    exit /b 1
)

:: 3. Check if service already exists
sc query "%SERVICE_NAME%" >nul 2>&1
if %errorLevel% equ 0 (
    echo Error: Service [%SERVICE_NAME%] already exists
    pause
    exit /b 1
)

echo "%DATA_DIR%"
if exist "%DATA_DIR%" (
  set "isEmpty=true"
  dir /a /b "%DATA_DIR%\*" 2>nul | findstr . >nul && set "isEmpty=false"
  dir /ad /b "%DATA_DIR%\*" 2>nul | findstr . >nul && set "isEmpty=false"
  if "!isEmpty!"=="false" (
    echo Please empty the data directory first
    pause
    exit /b 1
  ) else (
    echo Initialization conditions met
  )
) else (
  echo Initialization conditions met. Proceed with initialization?
  choice /c yn /m "Enter your choice (Y/N): "
  if errorlevel 2 (
    echo User chose not to initialize. Exiting...
    exit /b 0
  ) else (
    echo Initializing directory...
    mkdir "%DATA_DIR%"
    if exist "%DATA_DIR%" (
      echo Directory initialized successfully
    ) else (
      echo Failed to initialize directory
      pause
      exit /b 1
    )
  )
)

:: 1. Initialize MySQL
echo [1/4] Initializing MySQL...
"%MYSQL_BIN_PATH%\mysqld" --defaults-file="%MY_INI_PATH%" --initialize-insecure --basedir="%MYSQL_HOME%" --datadir="%DATA_DIR%"
if errorlevel 1 (
    echo Initialization failed
    exit /b 1
)

:: 2. Register MySQL service
echo [2/4] Registering MySQL service [%SERVICE_NAME%]...
"%MYSQL_BIN_PATH%\mysqld" --install "%SERVICE_NAME%" --defaults-file="%MY_INI_PATH%"
if errorlevel 1 (
    echo Service registration failed
    exit /b 1
)

:: 3. Start MySQL service
echo [3/4] Starting MySQL service [%SERVICE_NAME%]...
net start "%SERVICE_NAME%"
if errorlevel 1 (
    echo Service startup failed
    exit /b 1
)

:: 4. Change root password
echo [4/4] Changing root password...
"%MYSQL_BIN_PATH%\mysql" -u root --skip-password -e "ALTER USER 'root'@'localhost' IDENTIFIED BY '%NEW_ROOT_PASSWORD%'; FLUSH PRIVILEGES;"
if errorlevel 1 (
    echo Password change failed
    exit /b 1
)

echo MySQL successfully initialized and configured!
echo Service name: %SERVICE_NAME%
echo New root password: %NEW_ROOT_PASSWORD%
echo my.ini path: %MY_INI_PATH%

exit /b 0
endlocal