'use strict';

var utilUriEscape = require('@smithy/util-uri-escape');

function buildQueryString(query) {
    const parts = [];
    for (let key of Object.keys(query).sort()) {
        const value = query[key];
        key = utilUriEscape.escapeUri(key);
        if (Array.isArray(value)) {
            for (let i = 0, iLen = value.length; i < iLen; i++) {
                parts.push(`${key}=${utilUriEscape.escapeUri(value[i])}`);
            }
        }
        else {
            let qsEntry = key;
            if (value || typeof value === "string") {
                qsEntry += `=${utilUriEscape.escapeUri(value)}`;
            }
            parts.push(qsEntry);
        }
    }
    return parts.join("&");
}

exports.buildQueryString = buildQueryString;