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PersoSelector.php
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PersoSelector.php
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<?php
namespace Zed\Engines\Perso;
use Smarty;
use Zed\Engines\Perso\Events\Create;
use Zed\Engines\Perso\Events\Logout;
use Zed\Engines\Perso\Events\ReadFromSession;
use Zed\Engines\Perso\Events\Select;
use Zed\Engines\Perso\Events\TryAutoSelect;
use Perso;
use User;
use LogicException;
class PersoSelector {
///
/// Properties
///
public User $user;
public Smarty $smarty;
public Perso $perso;
public bool $hasPerso = false;
///
/// Constructors
//
/**
* @param User $user The currently logged user
*/
public function __construct (User $user, Smarty $smarty) {
$this->smarty = $smarty;
$this->user = $user;
}
/**
* Run all the workflow to get a perso.
*/
public static function load (User $user, Smarty $smarty) : Perso {
$selector = new self($user, $smarty);
$selector->handleEvents();
if (!$selector->hasPerso) {
throw new LogicException(<<<'EOD'
The selector has processed the different events and scenarii
to pick a perso. The expectation after all events have been
handled is we've selected a perso or have printed any view
to create or select one.
As such, this code should be unreachable. Debug the different
'isTriggered' and 'handle' methods of the events to ensure the
last event exit or return a perso.
EOD);
}
$smarty->assign('CurrentPerso', $selector->perso);
return $selector->perso;
}
///
/// Properties
///
public function selectAndSetPerso (Perso $perso) : void {
$perso->on_select();
$this->setPerso($perso);
}
public function setPerso (Perso $perso) : void {
$this->perso = $perso;
$this->hasPerso = true;
}
///
/// Events processing
///
private function handleEvents () : void {
$events = $this->getDefaultEvents();
foreach ($events as $event) {
$event->run();
}
}
/**
* @return \Zed\Engines\Perso\Events\BaseEvent[]
*/
private function getDefaultEvents () : array {
return [
// Strategy 1. Look in session if the perso is already selected.
new ReadFromSession($this),
// Strategy 2. Process forms and actions from URL.
new Create($this),
new Logout($this),
new Select($this),
// Strategy 3. Try to autoselect a perso or ask user for one.
new TryAutoSelect($this),
];
}
}

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