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package generator
import (
"bufio"
"math/rand"
"os"
"time"
)
func readLines(path string) ([]string, error) {
file, err := os.Open(path)
if err != nil {
return nil, err
}
defer file.Close()
var lines []string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
lines = append(lines, scanner.Text())
}
return lines, scanner.Err()
}
// RandomWords picks numberOfWords random words from the file located at
// wordsFile
func RandomWords(wordsFile string, numberOfWords int) ([]string, error) {
rand.Seed(time.Now().UTC().UnixNano())
words, err := readLines(wordsFile)
if err != nil {
return nil, err
}
phraseWords := make([]string, numberOfWords)
for index := 0; index < numberOfWords; index++ {
randInt := rand.Intn((len(words) - 1))
phraseWords[index] = words[randInt]
}
return phraseWords, nil
}
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