@echo off
REM Git Credential Setup for Windows
REM Batch file version for Command Prompt users

echo.
echo =================================
echo 🔐 Git Credential Setup for Windows
echo =================================
echo.

REM Check if Git is installed
git --version >nul 2>&1
if %errorlevel% neq 0 (
    echo ❌ Error: Git is not installed
    echo.
    echo Please install Git for Windows:
    echo Download: https://gitforwindows.org/
    echo Or via winget: winget install --id Git.Git -e --source winget
    echo.
    pause
    exit /b 1
)

echo ✅ Git found:
git --version
echo.

REM Show current Git config
echo 📋 Current Git Configuration:
echo User Name: 
git config --global user.name
echo User Email:
git config --global user.email
echo Credential Helper:
git config --global credential.helper
echo.

REM Check if we're in a Git repository
if exist .git (
    echo 📁 Current Repository:
    echo Remote URL:
    git remote get-url origin
    echo.
)

echo 🔧 Git Credential Setup Options:
echo 1. Git Credential Manager (Recommended)
echo 2. Personal Access Token
echo 3. SSH Keys (Most Secure)
echo 4. VS Code Integration
echo 5. Store Credentials (Less Secure)
echo.

set /p choice="Choose your preferred method (1-5): "

if "%choice%"=="1" goto :gcm_setup
if "%choice%"=="2" goto :pat_setup
if "%choice%"=="3" goto :ssh_setup
if "%choice%"=="4" goto :vscode_setup
if "%choice%"=="5" goto :store_setup

echo ❌ Invalid choice. Please run the script again.
pause
exit /b 1

:gcm_setup
echo.
echo 🔑 Setting up Git Credential Manager...
echo.

REM Check if GCM is installed
git-credential-manager --version >nul 2>&1
if %errorlevel% neq 0 (
    echo ⚠️  Git Credential Manager not found
    echo.
    echo Installing Git Credential Manager...
    echo.

    REM Try winget first
    winget install --id GitHub.GitHubDesktop -e --source winget --silent
    if %errorlevel% neq 0 (
        echo Winget failed. Please install manually:
        echo Download: https://github.com/git-ecosystem/git-credential-manager/releases/latest
        echo Or install GitHub Desktop which includes GCM
        pause
        exit /b 1
    )
    echo ✅ GitHub Desktop (includes GCM) installed
)

REM Configure Git to use GCM
echo.
echo Configuring Git to use GCM...
git config --global credential.helper manager
echo ✅ GCM configured as credential helper
echo.
echo Next time you push/pull, GCM will open a browser for authentication
echo and securely store your credentials.
goto :end

:pat_setup
echo.
echo 🔑 Setting up Personal Access Token...
echo.

echo For git.d-popov.com, you'll need to:
echo 1. Go to your Git server web interface
echo 2. Generate a Personal Access Token
echo 3. Use your username + token as password
echo.

REM Configure Git to store credentials
git config --global credential.helper store
echo ✅ Git configured to store credentials
echo.
echo Next time you push/pull:
echo - Username: Your Git username
echo - Password: [your personal access token]
echo - Git will remember these credentials
goto :end

:ssh_setup
echo.
echo 🔐 Setting up SSH Keys...
echo.

if exist "%USERPROFILE%\.ssh\id_ed25519" (
    echo ✅ SSH key already exists
) else (
    echo Generating new SSH key...
    ssh-keygen -t ed25519 -C "git-credentials" -f "%USERPROFILE%\.ssh\id_ed25519" -N ""
    echo ✅ SSH key generated
)

echo.
echo 📋 SSH Public Key (add this to your Git server):
echo ----------------------------------------
type "%USERPROFILE%\.ssh\id_ed25519.pub"
echo ----------------------------------------
echo.
echo Next steps:
echo 1. Copy the public key above
echo 2. Add it to your Git server (git.d-popov.com)
echo 3. Test SSH connection: ssh -T git@git.d-popov.com
echo.

REM Ask if user wants to change remote URL to SSH
set /p change_remote="Change remote URL to SSH? (y/n): "
if /i "%change_remote%"=="y" (
    for /f "tokens=*" %%i in ('git remote get-url origin') do set current_url=%%i
    set ssh_url=%current_url:https://git.d-popov.com/=git@git.d-popov.com:%
    git remote set-url origin "%ssh_url%"
    echo ✅ Remote URL changed to SSH: %ssh_url%
)
goto :end

:vscode_setup
echo.
echo 💻 Setting up VS Code Git Integration...
echo.

REM Configure VS Code as credential helper
git config --global credential.helper vscode
echo ✅ VS Code configured as credential helper
echo.
echo Next time you use Git in VS Code:
echo - VS Code will prompt for credentials
echo - Choose 'Save' to store them
echo - Credentials are stored securely
goto :end

:store_setup
echo.
echo 💾 Setting up credential storage...
echo.

echo ⚠️  WARNING: This stores credentials in plain text!
echo This is less secure than other methods.
echo.

set /p confirm="Continue anyway? (y/n): "
if /i not "%confirm%"=="y" goto :end

git config --global credential.helper store
echo ✅ Git configured to store credentials
echo.
echo Your credentials will be stored in plain text.
echo Make sure your computer is secure!
goto :end

:end
echo.
echo 🎉 Git credential setup complete!
echo.
echo 📖 Additional Resources:
echo - Git Documentation: https://git-scm.com/doc
echo - GCM Documentation: https://aka.ms/gcm
echo - SSH Key Guide: https://docs.github.com/en/authentication/connecting-to-github-with-ssh
echo.
echo 🧪 Test your setup:
echo   git fetch
echo   git pull
echo   git push
echo.
pause