nci-ats/fs-middlelayer-api

/*

  ___ ___       ___               _ _       _   ___ ___ 
 | __/ __|  ___| _ \___ _ _ _ __ (_) |_    /_\ | _ \_ _|
 | _|\__ \ / -_)  _/ -_) '_| '  \| |  _|  / _ \|  _/| | 
 |_| |___/ \___|_| \___|_| |_|_|_|_|\__| /_/ \_\_| |___|

*/

//*******************************************************************

'use strict';

//*******************************************************************
// required modules
const jsf = require('json-schema-faker');
//*******************************************************************

/** Populates fields at the top level of an application
 * @param  {String} intakeField - field in cnData to get the input value.
 * @param  {Object} cnData - application data from Basic API
 * @param  {Object} getSchema - schema used for GET requests
 * @param  {Object} jsonData - object to be populated and returned to user
 * @param  {String} key - field in jsonData to populated
 */
function getTopLevelField(intakeField, cnData, getSchema, jsonData, key){
    switch (intakeField){
    case 'none':
        break;
    default:
        if (cnData.hasOwnProperty(getSchema[key].intake)){
    
            jsonData[key] = cnData[getSchema[key].intake];
        
        }
    }

}
/** Populates fields a sublevel of an application
 * @param  {Object} cnData - application data from Basic API
 * @param  {Object} getSchema - schema used for GET requests
 * @param  {Object} jsonData - object to be populated and returned to user
 * @param  {String} key - field in jsonData to populated
 */
function getSubLevelField(cnData, getSchema, key, jsonData){

    let addressData, phoneData;
    if (cnData.addresses){
        addressData = cnData.addresses[0];
    }
    if (cnData.phones){
        phoneData = cnData.phones[0];
    }
    const path = getSchema[key].intake.split('/');
    let data;
    switch (path[0]){
    case 'phones':
        data = phoneData;
        break;
    case 'addresses':
        data = addressData;
        break;
    }
    if (data && data.hasOwnProperty(path[1])){
        jsonData[key] = data[path[1]];
    }

}

/**
 * @param  {Object} cnData - application data from Basic API
 * @param  {Object} applicationData - data about application, retreived from DB
 * @param  {Object} schemaData - object filled with the default values for a GET request
 * @param  {Object} jsonData - object to be populated and returned to user
 * @param  {Object} getSchema - schema used for GET requests
 */
function buildGetResponse(cnData, applicationData, schemaData, jsonData, getSchema){

    let key; 
    for (key in schemaData){
        
        if (typeof jsonData[key] !== 'object'){
            
            const intakeField = getSchema[key].intake;
            if (intakeField.startsWith('middleLayer/')){
                const applicationField = intakeField.split('/')[1];
                jsonData[key] = applicationData[applicationField];
            }
            else {

                if (intakeField.indexOf('/') === -1){
                    getTopLevelField(intakeField, cnData, getSchema, jsonData, key);    
                }
                else {
                    
                    getSubLevelField(cnData, getSchema, key, jsonData);
                }
            }
        }
        else {
            buildGetResponse(cnData, applicationData, schemaData[key], jsonData[key], getSchema[key]);
        }
    }

}

/**
 * @param  {Object} cnData - application data from Basic API
 * @param  {Object} applicationData - data about application, retreived from DB
 * @param  {Object} jsonData - object to be populated and returned to user
 * @param  {Object} outputSchema - schema used for GET requests
 * @return {Object} object populated with application data
 */
function copyGenericInfo(cnData, applicationData, jsonData, outputSchema){

    jsf.option({useDefaultValue:true});
    const schemaData = jsf(outputSchema);
    delete schemaData.id;

    jsonData = schemaData;
    buildGetResponse(cnData, applicationData, schemaData, jsonData, outputSchema);

    return jsonData;
}

module.exports.copyGenericInfo = copyGenericInfo;