# SSH Setup for git.etoth.dev
# Usage: powershell -ExecutionPolicy Bypass -File setup-git-ssh.ps1
# Or: Right-click → "Run with PowerShell"

Write-Host ""
Write-Host "========================================" -ForegroundColor Cyan
Write-Host "  SSH Setup for git.etoth.dev" -ForegroundColor Cyan
Write-Host "========================================" -ForegroundColor Cyan
Write-Host ""

# Create SSH directory
$sshDir = "$env:USERPROFILE\.ssh"
$configFile = "$sshDir\config"

if (-not (Test-Path $sshDir)) {
    Write-Host "→ Creating SSH directory..." -ForegroundColor Blue
    New-Item -ItemType Directory -Path $sshDir -Force | Out-Null
    Write-Host "✓ SSH directory created" -ForegroundColor Green
} else {
    Write-Host "✓ SSH directory exists" -ForegroundColor Green
}

# Create backup
if (Test-Path $configFile) {
    $timestamp = Get-Date -Format "yyyyMMdd_HHmmss"
    $backupFile = "$configFile.backup.$timestamp"
    Copy-Item $configFile $backupFile
    Write-Host "✓ Backup created: $backupFile" -ForegroundColor Green
}

# Check if already configured
$configExists = $false
if (Test-Path $configFile) {
    $content = Get-Content $configFile -Raw
    if ($content -match "Host git\.etoth\.dev") {
        $configExists = $true
    }
}

if ($configExists) {
    Write-Host ""
    Write-Host "⚠ git.etoth.dev is already configured!" -ForegroundColor Yellow
    Write-Host ""
    $overwrite = Read-Host "Do you want to overwrite the configuration? (y/n)"
    
    if ($overwrite -ne "y" -and $overwrite -ne "Y") {
        Write-Host "→ Setup cancelled." -ForegroundColor Blue
        Write-Host ""
        pause
        exit
    }
    
    # Remove old configuration (simplified version)
    $content = Get-Content $configFile
    $newContent = @()
    $skip = $false
    
    foreach ($line in $content) {
        if ($line -match "# Gitea Server git\.etoth\.dev") {
            $skip = $true
        }
        if (-not $skip) {
            $newContent += $line
        }
        if ($skip -and $line -match "^\s*$") {
            $skip = $false
        }
    }
    
    $newContent | Set-Content $configFile
    Write-Host "✓ Old configuration removed" -ForegroundColor Green
}

# Add new configuration
Write-Host "→ Adding SSH configuration..." -ForegroundColor Blue

$sshConfig = @"

# Gitea Server git.etoth.dev
Host git.etoth.dev
    HostName git.etoth.dev
    User git
    Port 222
    StrictHostKeyChecking accept-new

"@

Add-Content -Path $configFile -Value $sshConfig

Write-Host "✓ SSH configuration added!" -ForegroundColor Green
Write-Host ""

# Check for SSH key
$keyExists = (Test-Path "$sshDir\id_ed25519") -or (Test-Path "$sshDir\id_rsa")

if (-not $keyExists) {
    Write-Host "⚠ No SSH key found!" -ForegroundColor Yellow
    Write-Host ""
    $createKey = Read-Host "Do you want to create a new SSH key? (y/n)"
    
    if ($createKey -eq "y" -or $createKey -eq "Y") {
        Write-Host ""
        $email = Read-Host "Your email address"
        
        ssh-keygen -t ed25519 -C "$email" -f "$sshDir\id_ed25519"
        
        Write-Host ""
        Write-Host "✓ SSH key created!" -ForegroundColor Green
        Write-Host ""
        Write-Host "Your public key:" -ForegroundColor Blue
        Write-Host "----------------------------------------"
        Get-Content "$sshDir\id_ed25519.pub"
        Write-Host "----------------------------------------"
        Write-Host ""
        Write-Host "Add this key to Gitea:"
        Write-Host "  Settings → SSH/GPG Keys → Add Key"
        Write-Host ""
    }
}

# Test connection
Write-Host ""
$test = Read-Host "Do you want to test the connection? (y/n)"

if ($test -eq "y" -or $test -eq "Y") {
    Write-Host ""
    Write-Host "→ Testing connection to git.etoth.dev..." -ForegroundColor Blue
    Write-Host ""
    
    try {
        ssh -T git@git.etoth.dev 2>&1
    } catch {
        # Ignore errors as ssh -T returns non-zero exit code
    }
    
    Write-Host ""
}

Write-Host ""
Write-Host "========================================" -ForegroundColor Green
Write-Host "  Setup completed successfully!" -ForegroundColor Green
Write-Host "========================================" -ForegroundColor Green
Write-Host ""
Write-Host "You can now use Git:"
Write-Host ""
Write-Host "  git clone git@git.etoth.dev:user/repo.git"
Write-Host "  git push"
Write-Host "  git pull"
Write-Host ""
Write-Host "More information:"
Write-Host "  Show SSH config:  Get-Content `$env:USERPROFILE\.ssh\config"
Write-Host "  Edit SSH config:  notepad `$env:USERPROFILE\.ssh\config"
Write-Host ""

pause