noid-privacy/Modules/EdgeHardening/Private/Restore-EdgePolicies.ps1

<#
.SYNOPSIS
    Restore Microsoft Edge policy settings from backup
    
.DESCRIPTION
    Restores Edge policies from a previous backup.
    Integrates with Core Rollback system or standalone .reg file.
    
.PARAMETER BackupPath
    Path to backup file or backup ID (for Core Rollback system)
    
.OUTPUTS
    PSCustomObject with restore status
    
.NOTES
    Restores: HKLM:\Software\Policies\Microsoft\Edge
#>

function Restore-EdgePolicies {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$BackupPath
    )
    
    $result = [PSCustomObject]@{
        Success = $false
        KeysRestored = 0
        Errors = @()
    }
    
    try {
        Write-Log -Level DEBUG -Message "Restoring Edge policy settings from: $BackupPath" -Module "EdgeHardening"
        
        # Check if it's a .reg file (standalone backup)
        if ($BackupPath -like "*.reg" -and (Test-Path $BackupPath)) {
            Write-Log -Level DEBUG -Message "Restoring from .reg file..." -Module "EdgeHardening"
            
            # Import using reg.exe (built-in)
            $process = Start-Process -FilePath "reg.exe" `
                                     -ArgumentList "import `"$BackupPath`"" `
                                     -Wait `
                                     -NoNewWindow `
                                     -PassThru
            
            if ($process.ExitCode -eq 0) {
                $result.Success = $true
                $result.KeysRestored = 1
                Write-Log -Level DEBUG -Message "Standalone backup restored successfully" -Module "EdgeHardening"
            }
            else {
                $result.Errors += "reg.exe import failed with exit code: $($process.ExitCode)"
            }
        }
        else {
            # Try Core Rollback system
            Write-Warning "Restore from Core Rollback system not yet fully implemented"
            Write-Warning "Please use Framework's Invoke-Rollback for full restore"
            
            # Placeholder for future integration
            $result.Errors += "Please use Invoke-Rollback from Framework for integrated restore"
        }
        
    }
    catch {
        $result.Errors += "Restore failed: $($_.Exception.Message)"
        Write-Log -Level DEBUG -Message "Restore failed: $_" -Module "EdgeHardening"
    }
    
    return $result
}