rewrite iRule

is it something like this?

when HTTP_REQUEST {
  if { [IP::addr [IP::client_addr] equals 10.0.0.0/8] } {
    if { [HTTP::uri] equals "/citrix/wwl_prodweb/" } {
      switch -glob [HTTP::header "User-Agent"] {
        "*Firefox*" -
        "*Chrome*" -
        "*Opera*" -
        "*safari*" {
          HTTP::redirect "http://[HTTP::host]/citrix/wwl_prodwebExplicit/"
        }
        default {
           User-Agent is not FF, Chrome, Opera, safari
           Do something
        }
      }
    } else {
       URI is not equal to /citrix/wwl_prodweb/
       Do something
    }
  } else {
     IP is not in 10.0.0.0/8 subnet
     Do something
  }
}