How to combine multiple conditions in a PowerShell if-statement

How do you chain multiple sets conditions together when you want either one set or the other set of 2 conditions to be true?

To be more precise, I want to do:

If User is logged in AND Operating system version is Windows 10

OR

User is logged in AND LogonUI process is not running

For example I have:

if (
    (Get-WmiObject –ComputerName $poste –Class Win32_ComputerSystem).UserName`
    -and`
    (Get-WmiObject -Computer $poste -Class Win32_OperatingSystem).Version -like "*10*"
)
{ echo do X }

which is working fine. I want to add the other block of conditions within that same if. I tried this, but it's not working:

if (
    (Get-WmiObject –ComputerName $poste –Class Win32_ComputerSystem).UserName`
    -and`
    (Get-WmiObject -Computer $poste -Class Win32_OperatingSystem).Version -like "*10*"`
    -or`
    (Get-WmiObject –ComputerName $poste –Class Win32_ComputerSystem).UserName`
    -and -not`
    (Get-Process -ErrorAction SilentlyContinue -ComputerName $poste -name logonui)
)
{ echo do X }

How do you chain multiple "blocks" like this?

I know I could do two different if statements, but isn't there a way to chain it all together in one statement? The statement contains a lot of code and I don't want to duplicate it.

Put each set of conditions in parentheses:

if ( (A -and B) -or (C -and D) ) {
    echo do X
}

If either the first or the second set of conditions must be true (but not both of them) use -xor instead of -or:

if ( (A -and B) -xor (C -and D) ) {
    echo do X
}

Replace A, B, C, and D with the respective expressions.