/**
 * @NApiVersion 2.1
 * @NScriptType Restlet
 */
define(['N/render', 'N/search', 'N/record'],
    /**
 * @param{render} render
 */
    (render, search, record) => {
        /**
         * Defines the function that is executed when a GET request is sent to a RESTlet.
         * @param {Object} requestParams - Parameters from HTTP request URL; parameters passed as an Object (for all supported
         *     content types)
         * @returns {string | Object} HTTP response body; returns a string when request Content-Type is 'text/plain'; returns an
         *     Object when request Content-Type is 'application/json' or 'application/xml'
         * @since 2015.2
         */
        const get = (requestParams) => {
            try {
                log.debug({ title: 'get', details: JSON.stringify(requestParams)});
                let recId = requestParams.custparam_recid;
                if (recId) {
                    let lookupObj = search.lookupFields({type: record.Type.INVOICE, id: recId, columns: 'tranid'});
                    let docNum = lookupObj.tranid;
                    let pdfFile = render.transaction({ entityId: Number(recId), printMode: render.PrintMode.PDF });
                    let pdfString = pdfFile.getContents();
                    return {
                        docNum: docNum,
                        pdfString: pdfString
                    }
                }
            }
            catch (ex) {
                errLog(ex);
            }
        }

        /**
         * Defines the function that is executed when a PUT request is sent to a RESTlet.
         * @param {string | Object} requestBody - The HTTP request body; request body are passed as a string when request
         *     Content-Type is 'text/plain' or parsed into an Object when request Content-Type is 'application/json' (in which case
         *     the body must be a valid JSON)
         * @returns {string | Object} HTTP response body; returns a string when request Content-Type is 'text/plain'; returns an
         *     Object when request Content-Type is 'application/json' or 'application/xml'
         * @since 2015.2
         */
        const put = (requestBody) => {

        }

        /**
         * Defines the function that is executed when a POST request is sent to a RESTlet.
         * @param {string | Object} requestBody - The HTTP request body; request body is passed as a string when request
         *     Content-Type is 'text/plain' or parsed into an Object when request Content-Type is 'application/json' (in which case
         *     the body must be a valid JSON)
         * @returns {string | Object} HTTP response body; returns a string when request Content-Type is 'text/plain'; returns an
         *     Object when request Content-Type is 'application/json' or 'application/xml'
         * @since 2015.2
         */
        const post = (requestBody) => {

        }

        /**
         * Defines the function that is executed when a DELETE request is sent to a RESTlet.
         * @param {Object} requestParams - Parameters from HTTP request URL; parameters are passed as an Object (for all supported
         *     content types)
         * @returns {string | Object} HTTP response body; returns a string when request Content-Type is 'text/plain'; returns an
         *     Object when request Content-Type is 'application/json' or 'application/xml'
         * @since 2015.2
         */
        const doDelete = (requestParams) => {

        }
        const errLog = (e) => {
            let errObj = e;
            if (e instanceof String)
                errObj = JSON.parse(e);

            let errTyp = 'Native JS';
            let errMsg = 'Error: ' + errObj.name + '\n' + 'Message: ' + errObj.message;

            if (errObj.type === 'error.SuiteScriptError') {
                errTyp = 'SuiteScript Error';
                errMsg += '\n' + 'ID: ' + errObj.id + '\n' + 'Stack Trace: ' + errObj.stack;
            }
            else if (errObj.type === 'error.UserEventError') {
                errTyp = 'User Event Error';
                errMsg += '\n' + 'Event Type: ' + errObj.eventType + '\n' + 'Record ID: ' + errObj.recordId + '\n' + 'ID: ' + errObj.id + '\n' + 'Stack Trace: ' + errObj.stack;
            }
            log.debug(errTyp, errMsg);

            return errMsg;
        }
        

        return {
            get,
            //put,
            //post,
            //delete:
            //doDelete
        }
    });