'use strict';

var parsers = require('../parsers');
var parsers = require('../parsers');
var implicitSetter = require('../parsers').implicitSetter;

// the valid border-widths:
var widths = ['thin', 'medium', 'thick'];

module.exports.isValid = function parse(v) {
    var length = parsers.parseLength(v);
    if (length !== undefined) {
        return true;
    }
    if (typeof v !== 'string') {
        return false;
    }
    if (v === '') {
        return true;
    }
    v = v.toLowerCase();
    if (widths.indexOf(v) === -1) {
        return false;
    }
    return true;
};
var isValid = module.exports.isValid;

var parser = function (v) {
    var length = parsers.parseLength(v);
    if (length !== undefined) {
        return length;
    }
    if (isValid(v)) {
        return v.toLowerCase();
    }
    return undefined;
};

module.exports.definition = {
    set: implicitSetter('border', 'width', isValid, parser),
    get: function () {
        return this.getPropertyValue('border-width');
    },
    enumerable: true,
    configurable: true
};