enigma-bbs/core/onelinerz.js

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JavaScript
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/* jslint node: true */
'use strict';
// ENiGMA½
const MenuModule = require('./menu_module.js').MenuModule;
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const {
getModDatabasePath,
getTransactionDatabase
} = require('./database.js');
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// deps
const sqlite3 = require('sqlite3');
const async = require('async');
const _ = require('lodash');
const moment = require('moment');
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/*
Module :TODO:
* Add ability to at least alternate formatStrings -- every other
*/
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exports.moduleInfo = {
name : 'Onelinerz',
desc : 'Standard local onelinerz',
author : 'NuSkooler',
packageName : 'codes.l33t.enigma.onelinerz',
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};
const MciViewIds = {
view : {
entries : 1,
addPrompt : 2,
},
add : {
newEntry : 1,
entryPreview : 2,
addPrompt : 3,
}
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};
const FormIds = {
view : 0,
add : 1,
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};
exports.getModule = class OnelinerzModule extends MenuModule {
constructor(options) {
super(options);
const self = this;
this.menuMethods = {
viewAddScreen : function(formData, extraArgs, cb) {
return self.displayAddScreen(cb);
},
addEntry : function(formData, extraArgs, cb) {
if(_.isString(formData.value.oneliner) && formData.value.oneliner.length > 0) {
const oneliner = formData.value.oneliner.trim(); // remove any trailing ws
self.storeNewOneliner(oneliner, err => {
if(err) {
self.client.log.warn( { error : err.message }, 'Failed saving oneliner');
}
self.clearAddForm();
return self.displayViewScreen(true, cb); // true=cls
});
} else {
// empty message - treat as if cancel was hit
return self.displayViewScreen(true, cb); // true=cls
}
},
cancelAdd : function(formData, extraArgs, cb) {
self.clearAddForm();
return self.displayViewScreen(true, cb); // true=cls
}
};
}
initSequence() {
const self = this;
async.series(
[
function beforeDisplayArt(callback) {
return self.beforeArt(callback);
},
function display(callback) {
return self.displayViewScreen(false, callback);
}
],
err => {
if(err) {
// :TODO: Handle me -- initSequence() should really take a completion callback
}
self.finishedLoading();
}
);
}
displayViewScreen(clearScreen, cb) {
const self = this;
async.waterfall(
[
function prepArtAndViewController(callback) {
if(self.viewControllers.add) {
self.viewControllers.add.setFocus(false);
}
return self.prepViewControllerWithArt(
'view',
FormIds.view,
{
clearScreen,
trailingLF : false
},
(err, artInfo, wasCreated) => {
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if(!err && !wasCreated) {
self.viewControllers.view.setFocus(true);
self.viewControllers.view.getView(MciViewIds.view.addPrompt).redraw();
}
return callback(err);
}
);
},
function fetchEntries(callback) {
const entriesView = self.viewControllers.view.getView(MciViewIds.view.entries);
const limit = entriesView.dimens.height;
let entries = [];
self.db.each(
`SELECT *
FROM (
SELECT *
FROM onelinerz
ORDER BY timestamp DESC
LIMIT ${limit}
)
ORDER BY timestamp ASC;`,
(err, row) => {
if(!err) {
row.timestamp = moment(row.timestamp); // convert -> moment
entries.push(row);
}
},
err => {
return callback(err, entriesView, entries);
}
);
},
function populateEntries(entriesView, entries, callback) {
const tsFormat = self.menuConfig.config.timestampFormat || self.client.currentTheme.helpers.getDateFormat('short');
entriesView.setItems(entries.map( e => {
return {
userId : e.user_id,
userName : e.user_name,
oneliner : e.oneliner,
ts : e.timestamp.format(tsFormat),
};
}));
entriesView.redraw();
return callback(null);
},
function finalPrep(callback) {
const promptView = self.viewControllers.view.getView(MciViewIds.view.addPrompt);
promptView.setFocusItemIndex(1); // default to NO
return callback(null);
}
],
err => {
if(cb) {
return cb(err);
}
}
);
}
displayAddScreen(cb) {
const self = this;
async.waterfall(
[
function clearAndDisplayArt(callback) {
self.viewControllers.view.setFocus(false);
return self.prepViewControllerWithArt(
'add',
FormIds.add,
{
clearScreen : true,
trailingLF : false
},
(err, artInfo, wasCreated) => {
if(!wasCreated) {
self.viewControllers.add.setFocus(true);
self.viewControllers.add.redrawAll();
self.viewControllers.add.switchFocus(MciViewIds.add.newEntry);
}
return callback(err);
}
);
},
function initPreviewUpdates(callback) {
const previewView = self.viewControllers.add.getView(MciViewIds.add.entryPreview);
const entryView = self.viewControllers.add.getView(MciViewIds.add.newEntry);
if(previewView) {
let timerId;
entryView.on('key press', () => {
clearTimeout(timerId);
timerId = setTimeout( () => {
const focused = self.viewControllers.add.getFocusedView();
if(focused === entryView) {
previewView.setText(entryView.getData());
focused.setFocus(true);
}
}, 500);
});
}
return callback(null);
}
],
err => {
if(cb) {
return cb(err);
}
}
);
}
clearAddForm() {
this.setViewText('add', MciViewIds.add.newEntry, '');
this.setViewText('add', MciViewIds.add.entryPreview, '');
}
initDatabase(cb) {
const self = this;
async.series(
[
function openDatabase(callback) {
self.db = getTransactionDatabase(new sqlite3.Database(
getModDatabasePath(exports.moduleInfo),
err => {
return callback(err);
}
));
},
function createTables(callback) {
self.db.run(
`CREATE TABLE IF NOT EXISTS onelinerz (
id INTEGER PRIMARY KEY,
user_id INTEGER_NOT NULL,
user_name VARCHAR NOT NULL,
oneliner VARCHAR NOT NULL,
timestamp DATETIME NOT NULL
);`
,
err => {
return callback(err);
});
}
],
err => {
return cb(err);
}
);
}
storeNewOneliner(oneliner, cb) {
const self = this;
const ts = moment().format('YYYY-MM-DDTHH:mm:ss.SSSZ');
async.series(
[
function addRec(callback) {
self.db.run(
`INSERT INTO onelinerz (user_id, user_name, oneliner, timestamp)
VALUES (?, ?, ?, ?);`,
[ self.client.user.userId, self.client.user.username, oneliner, ts ],
callback
);
},
function removeOld(callback) {
// keep 25 max most recent items - remove the older ones
self.db.run(
`DELETE FROM onelinerz
WHERE id IN (
SELECT id
FROM onelinerz
ORDER BY id DESC
LIMIT -1 OFFSET 25
);`,
callback
);
}
],
err => {
return cb(err);
}
);
}
beforeArt(cb) {
super.beforeArt(err => {
return err ? cb(err) : this.initDatabase(cb);
});
}
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};