"use strict";

import {Patterns} from "./Patterns.ecma.js";

/**
 * @class
 * @constructor
 * @returns {void}
 * @access public
 */
export const Check = (function(){

    /**
     * @constructs Check
     * @returns {void}
     * @access private
     */
    const Check = function(){};

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_array = item => item instanceof Array;

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_dictionary = item => item && item.constructor == Object;

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_string = item => typeof item == "string";

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_key = item => Check.is_string(item) && Patterns.RE_KEY.test(item);

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_pascal_key = item => Check.is_string(item) && Patterns.RE_PASCAL_KEY.test(item);

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_function = item => typeof item == "function";

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_null_or_undefined = item => item === null || item === undefined;

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_html_item = item => item && (item.tagName || item.nodeName);

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_html_items = item => item instanceof NodeList;

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_bool = item => typeof item == "boolean";

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_json_object = item => Check.is_array(item) || Check.is_dictionary(item);

    /**
     * @param {?any} items 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_array_string = items => Check.is_array(items) && items.every(Check.is_string);

    /**
     * @param {!string} key 
     * @param {!string} [mark = "AnP"] 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_key_mark = (key, mark = "AnP") => key.slice(0, mark.length + 1) == mark + "_" && (
        key.slice(-4) == "_end" || 
        key.slice(-6) == "_start"
    );

    /**
     * @param {?any} item 
     * @returns {boolean}
     * @access public
     * @static
     */
    Check.is_number = item => typeof item == "number";

    return Check;
})();