/**
 * 中划线格式 -转-> 驼峰格式
 * @param name 原名称
 * @return 转换后的名称
 */
export const kebab2Camel = (name: string) => name.replace(/(?:^|-)([a-zA-Z0-9])/g, (m, $1) => $1.toUpperCase());

/**
 * 驼峰格式 -转-> 中划线格式
 * @param name 原名称
 * @return 转换后的名称
 */
export const Camel2kebab = (name: string) => name.replace(/([A-Z]|[0-9]+)/g, (m, $1, offset) => (offset ? '-' : '') + $1.toLowerCase());
/**
 * 首字母大写
 * @param value 字符串
 */
export const firstUpperCase = (value: string) => value.replace(/^\S/, (letter) => letter.toUpperCase());
export const firstLowerCase = (value: string) => value.replace(/^\S/, (letter) => letter.toLowerCase());

/**
 * @param key 键
 * @param set 数据集合，Array | Map | Set
 * @param start 数字起始
 */
export function unique(key: string, set: Set<string> | Map<string, any> | Array<string> | { [name: string]: string }, start: number = 1) {
    const has = (_key: string) => {
        if (set instanceof Set || set instanceof Map)
            return set.has(_key);
        else if (Array.isArray(set))
            return set.includes(_key);
        else
            return set[_key];
    };

    while (has(key))
        key = key.replace(/\d*$/, (m) => String(m === '' ? start : +m + 1));
    return key;
}

export const getLastOfPath = (path: string) => {
    const arr = path.split('/');
    return arr[arr.length - 1];
};

/**
 * 切出标签内的内容
 * @param source 原始内容
 * @param tag 标签
 * @param attrs 属性匹配
 */
export const sliceTagContent = (source: string, tag: string, attrs: string = '') => {
    const reg = new RegExp(`<${tag}${attrs ? ' ' + attrs : ''}.*?>([\\s\\S]+)<\\/${tag}>`);
    const m = source.match(reg);
    return m ? m[1].replace(/^\n+/, '') : '';
};