Param(
	$SubscriptionID,
	$ResourceGroupName,
	$SourceInstanceName,
	$SourceDatabaseName,
	$DestinationInstanceName,
	$DestinationDatabaseName,
	$PointInTime,
	[switch]$NonInteractive
)


Write-Verbose "- $($PSBoundParameters | ConvertTo-Json)"

Login-AzAccount

if(-not $SubscriptionID) {
	$Subscription = Get-AzSubscription | Out-Gridview -passthru # Select your subscription
} else {
	$Subscription = Get-AzSubscription -SubscriptionId $SubscriptionID
}
Select-AzSubscription -Subscription $Subscription.SubscriptionId

if(-not $ResourceGroupName) {
	$ResourceGroup = Get-AzResourceGroup | Out-Gridview -passthru # Select your resource group
} else {
	$ResourceGroup = Get-AzResourceGroup -ResourceGroupName $ResourceGroupName
}

if(-not $SourceInstanceName) {
	$SourceInstance = Get-AzSqlInstance | Out-Gridview -Passthru # Select the source instance for the restore
} else {
	$SourceInstance = Get-AzSqlInstance -Name $SourceInstanceName
}

if(-not $DestinationInstanceName) {
	$DestinationInstance = Get-AzSqlInstance | Out-GridView -PassThru # Select the Target instance for the restore
} else {
	$DestinationInstance = Get-AzSqlInstance -Name $DestinationInstanceName
}

if(-not $SourceDatabaseName) {
	$SourceDatabase = Get-AzSqlInstanceDatabase -InstanceName $SourceInstance.ManagedInstanceName -ResourceGroupName $ResourceGroup.ResourceGroupName | Out-GridView -PassThru # Select Database to restore
} else {
	$SourceDatabase = Get-AzSqlInstanceDatabase -InstanceName $SourceInstance.ManagedInstanceName -Name $SourceDatabaseName -ResourceGroupName $ResourceGroup.ResourceGroupName
} 

if(-not $DestinationDatabaseName) {
	$DestinationDatabaseName = read-host -Prompt 'Destination DB name'
}

if(-not  $PointInTime) {
	$PointInTime = Get-Date
}


$ParamRestoreAzSqlinstanceDatabase = @{
 	FromPointInTimeBackup = $true
   	InstanceName  = $SourceInstance.ManagedInstanceName 
   	Name = $SourceDatabase.Name 
   	ResourceGroupName = $ResourceGroup.ResourceGroupName 
   	PointInTime = $PointInTime 
   	TargetInstanceDatabaseName = $DestinationDatabaseName
   	TargetResourceGroupName = $ResourceGroup.ResourceGroupName
   	TargetInstanceName = $DestinationInstance.ManagedInstanceName
}

Write-Verbose @"
@Param = @{
	`$SubscriptionID = '$($Subscription.SubscriptionID)'
	`$ResourceGroupName = '$($ResourceGroup.ResourceGroupName)'
	`$SourceInstanceName = '$($SourceInstance.ManagedInstanceName)'
	`$SourceDatabaseName = '$($SourceDatabase.Name)'
	`$DestinationInstanceName = '$($DestinationInstance.ManagedInstanceName)'
	`$DestinationDatabaseName = '$($DestinationDatabaseName)'
}
"@


if(-not $NonInteractive) {
	write-warning "$($ParamRestoreAzSqlinstanceDatabase | ConvertTo-JSon)"
	Write-Warning "Continue with Restore?" -WarningAction Inquire
}

Restore-AzSqlinstanceDatabase @ParamRestoreAzSqlInstanceDatabase