export const SMALL_WORDS = new Set([
    "a",
    "an",
    "and",
    "as",
    "at",
    "because",
    "but",
    "by",
    "en",
    "for",
    "if",
    "in",
    "neither",
    "nor",
    "of",
    "on",
    "only",
    "or",
    "over",
    "per",
    "so",
    "some",
    "than",
    "that",
    "the",
    "to",
    "up",
    "upon",
    "v",
    "versus",
    "via",
    "vs",
    "when",
    "with",
    "without",
    "yet",
]);

export function capitalize(word: string): string {
    return word.charAt(0).toUpperCase() + word.slice(1);
}

export function camelToTitleCase(camelCaseStr: string): string {
    const titleCaseStr = camelCaseStr.replace(/([A-Z])/g, ' $1');

    const words = titleCaseStr.split(' ')
        .map(v => v.toLowerCase())
        .map(word => {
            if (SMALL_WORDS.has(word)) {
                return word;
            }
            return capitalize(word)
        });

    return capitalize(words.join(' '));
}