enigma-bbs/core/menu_util.js

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/* jslint node: true */
'use strict';
// ENiGMA½
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var moduleUtil = require('./module_util.js');
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var Log = require('./logger.js').log;
var conf = require('./config.js'); // :TODO: remove me!
var Config = require('./config.js').config;
var asset = require('./asset.js');
var theme = require('./theme.js');
var configCache = require('./config_cache.js');
var MCIViewFactory = require('./mci_view_factory.js').MCIViewFactory;
var acsUtil = require('./acs_util.js');
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var fs = require('fs');
var paths = require('path');
var async = require('async');
var assert = require('assert');
var _ = require('lodash');
exports.loadMenu = loadMenu;
exports.getFormConfigByIDAndMap = getFormConfigByIDAndMap;
exports.handleAction = handleAction;
exports.handleNext = handleNext;
exports.applyGeneralThemeCustomization = applyGeneralThemeCustomization;
exports.applyMciThemeCustomization = applyMciThemeCustomization;
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function getMenuConfig(name, cb) {
var menuConfig;
async.waterfall(
[
function loadMenuJSON(callback) {
configCache.getModConfig('menu.hjson', function loaded(err, menuJson) {
callback(err, menuJson);
});
},
function locateMenuConfig(menuJson, callback) {
if(_.has(menuJson, [ 'menus', name ])) {
menuConfig = menuJson.menus[name];
callback(null);
} else {
callback(new Error('No menu entry for \'' + name + '\''));
}
},
function loadPromptJSON(callback) {
if(_.isString(menuConfig.prompt)) {
configCache.getModConfig('prompt.hjson', function loaded(err, promptJson, reCached) {
callback(err, promptJson);
});
} else {
callback(null, null);
}
},
function locatePromptConfig(promptJson, callback) {
if(promptJson) {
if(_.has(promptJson, [ 'prompts', menuConfig.prompt ])) {
menuConfig.promptConfig = promptJson.prompts[menuConfig.prompt];
} else {
callback(new Error('No prompt entry for \'' + menuConfig.prompt + '\''));
return;
}
}
callback(null);
}
],
function complete(err) {
cb(err, menuConfig);
}
);
}
function loadMenu(options, cb) {
assert(_.isObject(options));
assert(_.isString(options.name));
assert(_.isObject(options.client));
async.waterfall(
[
function getMenuConfiguration(callback) {
getMenuConfig(options.name, function menuConfigLoaded(err, menuConfig) {
callback(err, menuConfig);
});
},
function loadMenuModule(menuConfig, callback) {
var modAsset = asset.getModuleAsset(menuConfig.module);
var modSupplied = null !== modAsset;
var 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, function moduleLoaded(err, mod) {
var modData = {
name : modLoadOpts.name,
config : menuConfig,
mod : mod,
};
callback(err, modData);
});
},
function createModuleInstance(modData, callback) {
Log.debug(
{ moduleName : modData.name, extraArgs : options.extraArgs, config : modData.config, info : modData.mod.modInfo },
'Creating menu module instance');
try {
var moduleInstance = new modData.mod.getModule(
{
menuName : options.name,
menuConfig : modData.config,
extraArgs : options.extraArgs
});
callback(null, moduleInstance);
} catch(e) {
callback(e);
}
}
],
function complete(err, modInst) {
cb(err, modInst);
}
);
}
function getFormConfigByIDAndMap(menuConfig, formId, mciMap, cb) {
assert(_.isObject(menuConfig));
if(!_.isObject(menuConfig.form)) {
cb(new Error('Invalid or missing \'form\' member for menu'));
return;
}
if(!_.isObject(menuConfig.form[formId])) {
cb(new Error('No form found for formId ' + formId));
return;
}
var formForId = menuConfig.form[formId];
var mciReqKey = _.filter(_.pluck(_.sortBy(mciMap, 'code'), 'code'), function(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');
cb(null, formForId[mciReqKey]);
return;
}
//
// Generic match
//
if(_.has(formForId, 'mci') || _.has(formForId, 'submit')) {
Log.trace('Using generic configuration');
cb(null, formForId);
return;
}
cb(new Error('No matching form configuration found for key \'' + mciReqKey + '\''));
}
// :TODO: Most of this should be moved elsewhere .... DRY...
function callModuleMenuMethod(client, asset, path, formData, extraArgs) {
if('' === paths.extname(path)) {
path += '.js';
}
try {
client.log.trace(
{ path : path, methodName : asset.asset, formData : formData, extraArgs : extraArgs },
'Calling menu method');
var methodMod = require(path);
methodMod[asset.asset](client.currentMenuModule, formData || { }, extraArgs);
} catch(e) {
client.log.error( { error : e.toString(), methodName : asset.asset }, 'Failed to execute asset method');
}
}
function handleAction(client, formData, conf) {
assert(_.isObject(conf));
assert(_.isString(conf.action));
var actionAsset = asset.parseAsset(conf.action);
assert(_.isObject(actionAsset));
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switch(actionAsset.type) {
case 'method' :
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case 'systemMethod' :
if(_.isString(actionAsset.location)) {
callModuleMenuMethod(client, actionAsset, paths.join(Config.paths.mods, actionAsset.location), formData, conf.extraArgs);
} else {
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if('systemMethod' === actionAsset.type) {
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// :TODO: Need to pass optional args here -- conf.extraArgs and args between e.g. ()
// :TODO: Probably better as system_method.js
callModuleMenuMethod(client, actionAsset, paths.join(__dirname, 'system_menu_method.js'), formData, conf.extraArgs);
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} else {
// local to current module
var currentModule = client.currentMenuModule;
if(_.isFunction(currentModule.menuMethods[actionAsset.asset])) {
currentModule.menuMethods[actionAsset.asset](formData, conf.extraArgs);
} else {
client.log.warn( { method : actionAsset.asset }, 'Method does not exist in module');
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}
}
}
break;
case 'menu' :
client.currentMenuModule.gotoMenu(actionAsset.asset, { formData : formData, extraArgs : conf.extraArgs } );
break;
}
}
function handleNext(client, nextSpec, conf) {
assert(_.isString(nextSpec) || _.isArray(nextSpec));
if(_.isArray(nextSpec)) {
nextSpec = acsUtil.getConditionalValue(client, nextSpec, 'next');
}
var nextAsset = asset.getAssetWithShorthand(nextSpec, 'menu');
conf = conf || {};
var extraArgs = conf.extraArgs || {};
switch(nextAsset.type) {
case 'method' :
case 'systemMethod' :
if(_.isString(nextAsset.location)) {
callModuleMenuMethod(client, nextAsset, paths.join(Config.paths.mods, nextAsset.location), {}, extraArgs);
} else {
if('systemMethod' === nextAsset.type) {
// :TODO: see other notes about system_menu_method.js here
callModuleMenuMethod(client, nextAsset, paths.join(__dirname, 'system_menu_method.js'), {}, extraArgs);
} else {
// local to current module
var currentModule = client.currentMenuModule;
if(_.isFunction(currentModule.menuMethods[nextAsset.asset])) {
currentModule.menuMethods[nextAsset.asset]( { }, extraArgs );
}
}
}
break;
case 'menu' :
client.currentMenuModule.gotoMenu(nextAsset.asset, { extraArgs : extraArgs } );
break;
default :
client.log.error( { nextSpec : nextSpec }, 'Invalid asset type for "next"');
break;
}
}
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// :TODO: Seems better in theme.js, but that includes ViewController...which would then include theme.js
// ...theme.js only brings in VC to create themed pause prompt. Perhaps that should live elsewhere
function applyGeneralThemeCustomization(options) {
//
// options.name
// options.client
// options.type
// options.config
//
assert(_.isString(options.name));
assert(_.isObject(options.client));
assert("menus" === options.type || "prompts" === options.type);
if(_.has(options.client.currentTheme, [ 'customization', options.type, options.name ])) {
var themeConfig = options.client.currentTheme.customization[options.type][options.name];
if(themeConfig.config) {
Object.keys(themeConfig.config).forEach(function confEntry(conf) {
if(options.config[conf]) {
_.defaultsDeep(options.config[conf], themeConfig.config[conf]);
} else {
options.config[conf] = themeConfig.config[conf];
}
});
}
}
}
function applyMciThemeCustomization(options) {
//
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// options.name : menu/prompt name
// options.mci : menu/prompt .mci section
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// options.client : client
// options.type : menu|prompt
// options.formId : (optional) form ID in cases where multiple forms may exist wanting their own customization
//
// In the case of formId, the theme must include the ID as well, e.g.:
// {
// ...
// "2" : {
// "TL1" : { ... }
// }
// }
//
assert(_.isString(options.name));
assert("menus" === options.type || "prompts" === options.type);
assert(_.isObject(options.client));
if(_.isUndefined(options.mci)) {
options.mci = {};
}
if(_.has(options.client.currentTheme, [ 'customization', options.type, options.name ])) {
var themeConfig = options.client.currentTheme.customization[options.type][options.name];
if(options.formId && _.has(themeConfig, options.formId.toString())) {
// form ID found - use exact match
themeConfig = themeConfig[options.formId];
}
if(themeConfig.mci) {
Object.keys(themeConfig.mci).forEach(function mciEntry(mci) {
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// :TODO: a better way to do this?
if(options.mci[mci]) {
_.defaults(options.mci[mci], themeConfig.mci[mci]);
} else {
options.mci[mci] = themeConfig.mci[mci];
}
});
}
}
// :TODO: apply generic stuff, e.g. "VM" (vs "VM1")
}