enigma-bbs/core/menu_util.js

289 lines
11 KiB
JavaScript

/* jslint node: true */
'use strict';
// ENiGMA½
const moduleUtil = require('./module_util.js');
const Log = require('./logger.js').log;
const Config = require('./config.js').get;
const asset = require('./asset.js');
const { MCIViewFactory } = require('./mci_view_factory.js');
const { Errors } = require('./enig_error.js');
// deps
const paths = require('path');
const async = require('async');
const _ = require('lodash');
exports.loadMenu = loadMenu;
exports.getFormConfigByIDAndMap = getFormConfigByIDAndMap;
exports.handleAction = handleAction;
exports.getResolvedSpec = getResolvedSpec;
exports.handleNext = handleNext;
function getMenuConfig(client, name, cb) {
async.waterfall(
[
function locateMenuConfig(callback) {
const menuConfig = _.get(client.currentTheme, [ 'menus', name ]);
if (menuConfig) {
return callback(null, menuConfig);
}
return callback(Errors.DoesNotExist(`No menu entry for "${name}"`));
},
function locatePromptConfig(menuConfig, callback) {
if(_.isString(menuConfig.prompt)) {
if(_.has(client.currentTheme, [ 'prompts', menuConfig.prompt ])) {
menuConfig.promptConfig = client.currentTheme.prompts[menuConfig.prompt];
return callback(null, menuConfig);
}
return callback(Errors.DoesNotExist(`No prompt entry for "${menuConfig.prompt}"`));
}
return callback(null, menuConfig);
}
],
(err, menuConfig) => {
return cb(err, menuConfig);
}
);
}
// :TODO: name/client should not be part of options - they are required always
function loadMenu(options, cb) {
if(!_.isString(options.name) || !_.isObject(options.client)) {
return cb(Errors.MissingParam('Missing required options'));
}
async.waterfall(
[
function getMenuConfiguration(callback) {
getMenuConfig(options.client, options.name, (err, menuConfig) => {
return callback(err, menuConfig);
});
},
function loadMenuModule(menuConfig, callback) {
menuConfig.config = menuConfig.config || {};
menuConfig.config.menuFlags = menuConfig.config.menuFlags || [];
if(!Array.isArray(menuConfig.config.menuFlags)) {
menuConfig.config.menuFlags = [ menuConfig.config.menuFlags ];
}
const modAsset = asset.getModuleAsset(menuConfig.module);
const modSupplied = null !== modAsset;
const modLoadOpts = {
name : modSupplied ? modAsset.asset : 'standard_menu',
path : (!modSupplied || 'systemModule' === modAsset.type) ? __dirname : Config().paths.mods,
category : (!modSupplied || 'systemModule' === modAsset.type) ? null : 'mods',
};
moduleUtil.loadModuleEx(modLoadOpts, (err, mod) => {
const modData = {
name : modLoadOpts.name,
config : menuConfig,
mod : mod,
};
return callback(err, modData);
});
},
function createModuleInstance(modData, callback) {
Log.trace(
{ moduleName : modData.name, extraArgs : options.extraArgs, config : modData.config, info : modData.mod.modInfo },
'Creating menu module instance');
let moduleInstance;
try {
moduleInstance = new modData.mod.getModule({
menuName : options.name,
menuConfig : modData.config,
extraArgs : options.extraArgs,
client : options.client,
lastMenuResult : options.lastMenuResult,
});
} catch(e) {
return callback(e);
}
return callback(null, moduleInstance);
}
],
(err, modInst) => {
return cb(err, modInst);
}
);
}
function getFormConfigByIDAndMap(menuConfig, formId, mciMap, cb) {
if(!_.isObject(menuConfig.form)) {
return cb(Errors.MissingParam('Invalid or missing "form" member for menu'));
}
if(!_.isObject(menuConfig.form[formId])) {
return cb(Errors.DoesNotExist(`No form found for formId ${formId}`));
}
const formForId = menuConfig.form[formId];
const mciReqKey = _.filter(_.map(_.sortBy(mciMap, 'code'), 'code'), (mci) => {
return MCIViewFactory.UserViewCodes.indexOf(mci) > -1;
}).join('');
Log.trace( { mciKey : mciReqKey }, 'Looking for MCI configuration key');
//
// Exact, explicit match?
//
if(_.isObject(formForId[mciReqKey])) {
Log.trace( { mciKey : mciReqKey }, 'Using exact configuration key match');
return cb(null, formForId[mciReqKey]);
}
//
// Generic match
//
if(_.has(formForId, 'mci') || _.has(formForId, 'submit')) {
Log.trace('Using generic configuration');
return cb(null, formForId);
}
return cb(Errors.DoesNotExist(`No matching form configuration found for key "${mciReqKey}"`));
}
// :TODO: Most of this should be moved elsewhere .... DRY...
function callModuleMenuMethod(client, asset, path, formData, extraArgs, cb) {
if('' === paths.extname(path)) {
path += '.js';
}
try {
client.log.trace(
{ path : path, methodName : asset.asset, formData : formData, extraArgs : extraArgs },
'Calling menu method');
const methodMod = require(path);
return methodMod[asset.asset](client.currentMenuModule, formData || { }, extraArgs, cb);
} catch(e) {
client.log.error( { error : e.toString(), methodName : asset.asset }, 'Failed to execute asset method');
return cb(e);
}
}
function handleAction(client, formData, conf, cb) {
if(!_.isObject(conf)) {
return cb(Errors.MissingParam('Missing config'));
}
const action = getResolvedSpec(client, conf.action, 'action'); // random/conditionals/etc.
const actionAsset = asset.parseAsset(action);
if(!_.isObject(actionAsset)) {
return cb(Errors.Invalid('Unable to parse "conf.action"'));
}
switch(actionAsset.type) {
case 'method' :
case 'systemMethod' :
if(_.isString(actionAsset.location)) {
return callModuleMenuMethod(
client,
actionAsset,
paths.join(Config().paths.mods, actionAsset.location),
formData,
conf.extraArgs,
cb);
} else if('systemMethod' === actionAsset.type) {
// :TODO: Need to pass optional args here -- conf.extraArgs and args between e.g. ()
// :TODO: Probably better as system_method.js
return callModuleMenuMethod(
client,
actionAsset,
paths.join(__dirname, 'system_menu_method.js'),
formData,
conf.extraArgs,
cb);
} else {
// local to current module
const currentModule = client.currentMenuModule;
if(_.isFunction(currentModule.menuMethods[actionAsset.asset])) {
return currentModule.menuMethods[actionAsset.asset](formData, conf.extraArgs, cb);
}
const err = Errors.DoesNotExist('Method does not exist');
client.log.warn( { method : actionAsset.asset }, err.message);
return cb(err);
}
case 'menu' :
return client.currentMenuModule.gotoMenu(actionAsset.asset, { formData : formData, extraArgs : conf.extraArgs }, cb );
}
}
function getResolvedSpec(client, spec, memberName) {
//
// 'next', 'action', etc. can come in various flavors:
// (1) Simple string:
// next: foo
// (2) Array of objects with 'acs' checks; any object missing 'acs'
// is assumed to be "true":
// next: [
// {
// acs: AR2
// next: foo
// }
// {
// next: baz
// }
// ]
// (3) Simple array of strings. A random selection will be made:
// next: [ "foo", "baz", "fizzbang" ]
//
if(!Array.isArray(spec)) {
return spec; // (1) simple string, as-is
}
if(_.isObject(spec[0])) {
return client.acs.getConditionalValue(spec, memberName); // (2) ACS conditionals
}
return spec[Math.floor(Math.random() * spec.length)]; // (3) random
}
function handleNext(client, nextSpec, conf, cb) {
nextSpec = getResolvedSpec(client, nextSpec, 'next');
const nextAsset = asset.getAssetWithShorthand(nextSpec, 'menu');
// :TODO: getAssetWithShorthand() can return undefined - handle it!
conf = conf || {};
const extraArgs = conf.extraArgs || {};
// :TODO: DRY this with handleAction()
switch(nextAsset.type) {
case 'method' :
case 'systemMethod' :
if(_.isString(nextAsset.location)) {
return callModuleMenuMethod(client, nextAsset, paths.join(Config().paths.mods, nextAsset.location), {}, extraArgs, cb);
} else if('systemMethod' === nextAsset.type) {
// :TODO: see other notes about system_menu_method.js here
return callModuleMenuMethod(client, nextAsset, paths.join(__dirname, 'system_menu_method.js'), {}, extraArgs, cb);
} else {
// local to current module
const currentModule = client.currentMenuModule;
if(_.isFunction(currentModule.menuMethods[nextAsset.asset])) {
const formData = {}; // we don't have any
return currentModule.menuMethods[nextAsset.asset]( formData, extraArgs, cb );
}
const err = Errors.DoesNotExist('Method does not exist');
client.log.warn( { method : nextAsset.asset }, err.message);
return cb(err);
}
case 'menu' :
return client.currentMenuModule.gotoMenu(nextAsset.asset, { extraArgs : extraArgs }, cb );
}
const err = Errors.Invalid('Invalid asset type for "next"');
client.log.error( { nextSpec : nextSpec }, err.message);
return cb(err);
}