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// Copyright 2016 The LUCI Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package endpoints
import (
"time"
"google.golang.org/protobuf/types/known/durationpb"
)
// MinDuration selects the smallest duration that is > 0 from a set of
// durationpb.Duration protobufs.
//
// If none of the supplied Durations are > 0, 0 will be returned.
func MinDuration(candidates ...*durationpb.Duration) (exp time.Duration) {
for _, c := range candidates {
if cd := c.AsDuration(); cd > 0 && (exp <= 0 || cd < exp) {
exp = cd
}
}
return
}