#$debugpreference="Continue"
start-transcript -path $($MyInvocation.MyCommand.Name+".log") -force |out-null
$doneflag = ".\dhcpdone.flag"
$vmstartedflag = ".\vmstarted.flag"
$dnsdone = $false
if (!(test-path $doneflag)){
	write-debug "$doneflag file does not exist"
	$arcrunpath = $(split-path $myinvocation.invocationname -parent)+"\arcrun.bat"
	## new-itemproperty -path hklm:\software\microsoft\windows\currentversion\run -name arcenv -value $arcrunpath -force

	######################### setup dhcp
	$vs = get-vmswitch -switchtype internal
	if($vs.count -eq 0) {throw "cannot locate the Hyper-v virtual network adapter"}
	write-debug "located the internal virtual switch"
	
	$vnic = get-vmnetworkadapter -name $vs.name -managementos
	if($vnic.count -eq 0) {throw "cannot locate the vnic"}
	write-debug "located the virtual nic for internal virtual switch"
	
	gwmi Win32_NetworkAdapterConfiguration| Where-Object {$_.IPEnabled -eq 'True'} |foreach-object{if($($_.macaddress).replace(":","") -eq $vnic.macaddress){$maddr = $_.macaddress}}
	$prinic = gwmi Win32_NetworkAdapterConfiguration| Where-Object {$_.IPEnabled -eq 'True'} | where-object{$_.macaddress -eq $maddr}

	$priipexist = $false
	$prinic.ipaddress | foreach-object{if($_ -match "192.168.10.1"){$priipexist = $true}}

	write-host "Starting checking domain  admin account"
	
	if($(gwmi win32_computersystem).partofdomain){
		write-debug "This computer is part of domain"
		try{
			add-dhcpserverindc;
		}catch{
			write-host "This machine is part of a domain and the DHCP server failed to be authorized. Please contact your domain administrator to authorize the DHCP server before using the Arcserve UDP Linux Backup server." -foregroundcolor red -backgroundcolor yellow
			pause;
		}		
	}

	
	write-host "192.168.10.1 existence: $priipexist"
	
	if($priipexist -eq $false){
		write-host "private static ip lost. reassigning..."
		new-netipaddress -interfaceindex $prinic.interfaceindex -ipaddress 192.168.10.1 -prefixlength 24
		sleep 1
	}	
	if(!$(get-dhcpserverv4binding | where-object{$_.ipaddress -match "192.168.10.1"}).bindingstate){
		write-host "dhcp server nic binding lost. rebinding...";
		$namepri= $(gwmi Win32_NetworkAdapter| Where-Object {$_.macaddress -match $maddr}).NetConnectionID
		sleep 1
		set-dhcpserverv4binding -bindingstate $true -interfacealias $namepri
	}
	#make sure scope exists
	if($(get-dhcpserverv4scope).count -eq 0){
		write-host "dhcp server scope lost. recreating..."
		add-dhcpserverv4scope -startrange 192.168.10.2 -endrange 192.168.10.2 -subnetmask 255.255.255.0 -name nat -state active
		set-dhcpserverv4optionvalue -scopeid 192.168.10.0 -optionid 3 -value 192.168.10.1
	}
	
	#create done flag
	write-debug "creating the dhcpdone flag"
	new-item -name $doneflag -force -itemtype file |out-null
	write-host "Setting up DNS ..."
	.\setdns.ps1
	$dnsdone=$true
	
	if (!(test-path $vmstartedflag)){
		write-debug "vmstartedflag was not found. vm has not been started ever. restarting it."
		if((get-vm linux-backupsvr).state -notmatch "off"){write-host "Stopping VM...";stop-vm Linux-BackupSvr -force}	
		write-host "Starting VM...";
		start-vm Linux-BackupSvr
		sleep 2
		write-debug "creating vmstartedflag file"
		new-item -name $vmstartedflag -force -itemtype file
		#### the RAS workaround
		remove-dhcpserverv4lease -scopeid 192.168.10.0 -confirm:$false
	}
		
}


#################### setup DNS
if(!$dnsdone){write-host "Setting up DNS ...";.\setdns.ps1}

stop-transcript
exit