"use strict";
var _ = require('../../../lodash'), sanitize = require('./sanitize').sanitize, path = require('path');
/**
 * Used to parse the body of the postman SDK-request and return in the desired format
 *
 * @param  {Object} request - postman SDK-request object
 * @param  {String} indentation - used for indenting snippet's structure
 * @param  {Boolean} bodyTrim - whether to trim request body fields
 * @returns {String} - request body
 */
module.exports = function (request, indentation, bodyTrim) {
    // used to check whether body is present in the request or not
    if (!_.isEmpty(request.body)) {
        var requestBody = '', bodyDataMap, enabledBodyList;
        switch (request.body.mode) {
            case 'raw':
                if (!_.isEmpty(request.body[request.body.mode])) {
                    requestBody += `payload = ${sanitize(request.body[request.body.mode], request.body.mode, bodyTrim)}\n`;
                }
                else {
                    requestBody = 'payload = \'\'\n';
                }
                return requestBody;
            case 'graphql':
                // eslint-disable-next-line no-case-declarations
                let query = request.body[request.body.mode].query, graphqlVariables;
                try {
                    graphqlVariables = JSON.parse(request.body[request.body.mode].variables);
                }
                catch (e) {
                    graphqlVariables = {};
                }
                requestBody += `payload = ${sanitize(JSON.stringify({
                    query: query,
                    variables: graphqlVariables
                }), 'raw', bodyTrim)}\n`;
                return requestBody;
            case 'urlencoded':
                enabledBodyList = _.reject(request.body[request.body.mode], 'disabled');
                if (!_.isEmpty(enabledBodyList)) {
                    bodyDataMap = _.map(enabledBodyList, function (value) {
                        return `${sanitize(value.key, request.body.mode, bodyTrim)}=` +
                            `${sanitize(value.value, request.body.mode, bodyTrim)}`;
                    });
                    requestBody += `payload = '${bodyDataMap.join('&')}'\n`;
                }
                else {
                    requestBody = 'payload = \'\'\n';
                }
                return requestBody;
            case 'formdata':
                enabledBodyList = _.reject(request.body[request.body.mode], 'disabled');
                if (!_.isEmpty(enabledBodyList)) {
                    requestBody += 'dataList = []\n';
                    requestBody += 'boundary = \'wL36Yn8afVp8Ag7AmP8qZ0SA4n1v9T\'\n';
                    enabledBodyList.forEach((data) => {
                        requestBody += 'dataList.append(encode(\'--\' + boundary))\n';
                        if (data.type !== 'file') {
                            requestBody += `dataList.append(encode('Content-Disposition: form-data; name=${sanitize(data.key, 'form-data', true)};'))\n\n`; // eslint-disable-line max-len
                            requestBody += 'dataList.append(encode(\'Content-Type: {}\'.format(\'' +
                                (data.contentType ? data.contentType : 'text/plain') + '\')))\n';
                            requestBody += 'dataList.append(encode(\'\'))\n\n';
                            requestBody += `dataList.append(encode("${sanitize(data.value, 'form-data', true)}"))\n`;
                        }
                        else {
                            var pathArray = data.src.split(path.sep), fileName = pathArray[pathArray.length - 1];
                            requestBody += `dataList.append(encode('Content-Disposition: form-data; name=${sanitize(data.key, 'form-data', true)}; filename={0}'.format('${sanitize(fileName, 'formdata', true)}')))\n\n`; // eslint-disable-line max-len
                            requestBody += `fileType = mimetypes.guess_type('${sanitize(data.src, 'formdata', true)}')[0] or 'application/octet-stream'\n`; // eslint-disable-line max-len
                            requestBody += 'dataList.append(encode(\'Content-Type: {}\'.format(fileType)))\n';
                            requestBody += 'dataList.append(encode(\'\'))\n\n';
                            requestBody += `with open('${data.src}', 'rb') as f:\n`;
                            requestBody += `${indentation}dataList.append(f.read())\n`;
                        }
                    });
                    requestBody += 'dataList.append(encode(\'--\'+boundary+\'--\'))\n';
                    requestBody += 'dataList.append(encode(\'\'))\n';
                    requestBody += 'body = b\'\\r\\n\'.join(dataList)\n';
                    requestBody += 'payload = body\n';
                }
                else {
                    requestBody = 'boundary = \'\'\n';
                    requestBody += 'payload = \'\'\n';
                }
                return requestBody;
            case 'file':
                return 'payload = "<file contents here>"\n';
            default:
                return 'payload = \'\'\n';
        }
    }
    return '';
};