sql select min or max based on condition

Hi all I'm trying to find a way to select min or max from a range of data based on conditions. If setuptime and processtime cols are all O select MIN(oprNum) (operation hasn't started yet so get first oprnum) if setuptime and process time are not 0, get max oprnum (active operation). based on either of these I want ONE row... please see attached example of data. Thanks! This is part of a much larger query so i need 1 output row per prodid...

+------------+--------+---------+--------------------+--------------------+
| ProdId     | OprNum | Company | SetupTime          | ProcessTime        |
+------------+--------+---------+--------------------+--------------------+
| 12M0003381 | 10     | 12      | 1.3400000000000000 | 1.6100000000000000 |
+------------+--------+---------+--------------------+--------------------+
| 12M0003381 | 10     | 12      | 0.0000000000000000 | 0.0000000000000000 |
+------------+--------+---------+--------------------+--------------------+
| 12M0003381 | 15     | 12      | 1.0000000000000000 | 0.0000000000000000 |
+------------+--------+---------+--------------------+--------------------+
| 12M0003381 | 50     | 12      | 0.0000000000000000 | 0.0000000000000000 |
+------------+--------+---------+--------------------+--------------------+
| 12M0003381 | 60     | 12      | 0.0000000000000000 | 0.0000000000000000 |
+------------+--------+---------+--------------------+--------------------+
| 12M0003381 | 60     | 12      | 0.0000000000000000 | 0.0000000000000000 |
+------------+--------+---------+--------------------+--------------------+
| 12M0003381 | 70     | 12      | 0.0700000000000000 | 0.0400000000000000 |
+------------+--------+---------+--------------------+--------------------+
| 12M0003381 | 70     | 12      | 0.0000000000000000 | 0.0000000000000000 |
+------------+--------+---------+--------------------+--------------------+

via Chebli Mohamed