| package namesgenerator |
| |
| import ( |
| "fmt" |
| "math/rand" |
| "time" |
| ) |
| |
| type NameChecker interface { |
| Exists(name string) bool |
| } |
| |
| var ( |
| colors = [...]string{"white", "silver", "gray", "black", "blue", "green", "cyan", "yellow", "gold", "orange", "brown", "red", "violet", "pink", "magenta", "purple", "maroon", "crimson", "plum", "fuchsia", "lavender", "slate", "navy", "azure", "aqua", "olive", "teal", "lime", "beige", "tan", "sienna"} |
| animals = [...]string{"ant", "bear", "bird", "cat", "chicken", "cow", "deer", "dog", "donkey", "duck", "fish", "fox", "frog", "horse", "kangaroo", "koala", "lemur", "lion", "lizard", "monkey", "octopus", "pig", "shark", "sheep", "sloth", "spider", "squirrel", "tiger", "toad", "weasel", "whale", "wolf"} |
| ) |
| |
| func GenerateRandomName(checker NameChecker) (string, error) { |
| retry := 5 |
| rand.Seed(time.Now().UnixNano()) |
| name := fmt.Sprintf("%s_%s", colors[rand.Intn(len(colors))], animals[rand.Intn(len(animals))]) |
| for checker != nil && checker.Exists(name) && retry > 0 { |
| name = fmt.Sprintf("%s%d", name, rand.Intn(10)) |
| retry = retry - 1 |
| } |
| if retry == 0 { |
| return name, fmt.Errorf("Error generating random name") |
| } |
| return name, nil |
| } |