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https://github.com/moby/moby.git
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31 lines
887 B
Go
31 lines
887 B
Go
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package namesgenerator
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import (
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"fmt"
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"math/rand"
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"time"
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)
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type NameChecker interface {
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Exists(name string) bool
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}
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var (
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colors = [...]string{"white", "silver", "gray", "black", "blue", "green", "cyan", "yellow", "gold", "orange", "brown", "red", "violet", "pink", "magenta", "purple"}
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animals = [...]string{"ant", "bird", "cat", "chicken", "cow", "dog", "fish", "fox", "horse", "lion", "monkey", "pig", "sheep", "tiger", "whale", "wolf"}
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)
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func GenerateRandomName(checker NameChecker) (string, error) {
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retry := 5
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rand.Seed(time.Now().UnixNano())
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name := fmt.Sprintf("%s_%s", colors[rand.Intn(len(colors))], animals[rand.Intn(len(animals))])
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for checker != nil && checker.Exists(name) && retry > 0 {
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name = fmt.Sprintf("%s%d", name, rand.Intn(10))
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retry = retry - 1
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}
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if retry == 0 {
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return name, fmt.Errorf("Error generating random name")
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}
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return name, nil
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}
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