Business App Template
=====================

This is an empty (but fully functional) PHP application.  It is designed to
integrate with AccountHub, an account management web interface.  AccountHub manages
user credentials and account data, and is accessed by this app via [a simple API](http://docs.netsyms.com/docs/AccountHub/API%20Documentation/).

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Program Structure
-----------------

### Folders
* lang
   Translations and alert messages.
   The language file that is loaded depends on the value of `LANGUAGE` in `settings.php`.
   Translate the values (but not the keys) in `en_us.php` into other languages and save in appropriately named files to add languages.
* lib
   A good place to put helper functions that you don't want "in the way".
* pages
   What it looks like.  If you go into `pages.php` and define a page with the name `foo`, there should be a `foo.php` in here.
   The app checks before loading, so it will give a friendly 404 error if it doesn't find your page.
   Woe to you if you delete `home.php` or `404.php`, as those are assumed to exist for fallback behavior.
* static
   CSS, JS, fonts, images...
* vendor
   If you don't know what this is about, or you don't have it, you need to read up on Composer.  Right now.

### Files
* settings.template.php
   App configuration.  Copy to `settings.php` and customize.  Documented with inline comments.
* required.php
   The "duct tape" that holds the app together.  Use `require_once __DIR__."/required.php"` at the top of every file.
   It loads Composer dependencies, app settings, language data, and creates `$database` for accessing the database.
   It also has some utility functions, including `dieifnotloggedin()`, `is_empty($var)`, and `lang('key')`.
   Read through it to see what those functions do.
* action.php
   A good place to post forms to.  By default it only handles logging out, but is easily expanded.
* api.php
   Similar to action.php, but designed for user/pass authenticated JSON responses.
* index.php
   Login page and handler.  Hands off to `app.php` after authenticating user.
   It includes 2fa support, by the way.
* app.php
   Main app page after login.  Handles loading app pages and 404 errors.
   Redirects to `index.php` if the user is not logged in.
   Note: to show an alert message (success, error, whatever), set the GET argument `msg` to a message ID from `lang/messages.php`.
* pages.php
   Define app pages/screens in an array.  The page ID/array key is assumed to exist as a file `pages/{key}.php`, or it will 404.
   __Optional parameters:__
      `'navbar' => true` will show the page as a button in the app menu bar.
      `'icon' => '...'` will show an icon from FontAwesome in the menu bar.  Setting this to `home` will show the icon `fa-home`.
      `'styles' => ["file.css"]` will inject the listed CSS files into the page header (after all other CSS, like Bootstrap).
      `'scripts' => ["file.js"]` will inject the listed JavaScript files into the page footer (after jQuery and other builtin scripts).
* lang/messages.php
   Array of alert messages.
   `"string"` is the language string for the message, `"type"` is one of `success`, `info`, `warning`, or `danger` (i.e. Bootstrap alert classes).
   Changing the type changes the icon and color of the alert box.
*lang/en_us.php
   Language data for US English.
*lib/login.php
   Functions for logging in users and stuff like that.  Most functions transparently makes requests to the AccountHub API and return the results.
*lib/userinfo.php
   Functions for getting user data, like real names and managed employees.
*static/css/app.css
   Custom styles for the app.  See the comments inside for instructions on theming the app.