<?php
namespace Moko\Component\MokoSuiteNpo\Api\Controller;

defined('_JEXEC') or die;

use Joomla\CMS\Factory;
use Joomla\CMS\MVC\Controller\BaseController;
use Joomla\Database\DatabaseInterface;

/**
 * Events + Volunteers + Memberships API.
 */
class NpoEventsController extends BaseController
{
	private function requireAuth(string $action = 'core.manage'): void
	{
		$user = Factory::getApplication()->getIdentity();
		if (!$user || $user->guest || (!$user->authorise('core.admin') && !$user->authorise($action, 'com_mokosuitenpo'))) {
			http_response_code(403);
			echo json_encode(['error' => 'Access denied.']);
			Factory::getApplication()->close();
		}
	}

	public function listEvents(): void
	{
		$events = \Moko\Plugin\System\MokoSuiteNpo\Helper\EventHelper::getUpcomingEvents(50);
		$this->sendJson($events);
	}

	public function registerForEvent(): void
	{
		$input = Factory::getApplication()->getInput();

		$regId = \Moko\Plugin\System\MokoSuiteNpo\Helper\EventHelper::register(
			$input->getInt('event_id', 0), [
				'contact_id' => $input->getInt('contact_id', 0),
				'name'       => $input->getString('name', ''),
				'email'      => $input->getString('email', ''),
				'phone'      => $input->getString('phone', ''),
				'tickets'    => $input->getInt('tickets', 1),
				'amount'     => $input->getFloat('amount', 0),
				'dietary'    => $input->getString('dietary', ''),
			]
		);

		$this->sendJson(['id' => $regId, 'message' => 'Registered.']);
	}

	public function checkIn(): void
	{
		$this->requireAuth('core.manage');
		$regId = Factory::getApplication()->getInput()->getInt('registration_id', 0);
		\Moko\Plugin\System\MokoSuiteNpo\Helper\EventHelper::checkIn($regId);
		$this->sendJson(['message' => 'Checked in.']);
	}

	public function listVolunteers(): void
	{
		$this->requireAuth('core.manage');
		$stats = \Moko\Plugin\System\MokoSuiteNpo\Helper\VolunteerHelper::getVolunteerStats();
		$this->sendJson($stats);
	}

	public function logVolunteerHours(): void
	{
		$this->requireAuth('core.manage');
		$input = Factory::getApplication()->getInput();

		$logId = \Moko\Plugin\System\MokoSuiteNpo\Helper\VolunteerHelper::logHours(
			$input->getInt('volunteer_id', 0),
			$input->getString('activity', ''),
			$input->getFloat('hours', 0),
			$input->getString('date', date('Y-m-d')),
			$input->getString('notes', '')
		);

		$this->sendJson(['id' => $logId, 'message' => 'Hours logged.']);
	}

	public function membershipSummary(): void
	{
		$this->requireAuth('core.manage');
		$summary = \Moko\Plugin\System\MokoSuiteNpo\Helper\MembershipHelper::getSummary();
		$this->sendJson($summary);
	}

	public function grantPipeline(): void
	{
		$this->requireAuth('npo.grants');
		$pipeline = \Moko\Plugin\System\MokoSuiteNpo\Helper\GrantHelper::getPipelineSummary();
		$reports = \Moko\Plugin\System\MokoSuiteNpo\Helper\GrantHelper::getReportsDue();
		$this->sendJson(['pipeline' => $pipeline, 'reports_due' => $reports]);
	}

	private function sendJson(mixed $data): void
	{
		$app = Factory::getApplication();
		$app->getDocument()->setMimeEncoding('application/json');
		echo json_encode(['data' => $data], JSON_THROW_ON_ERROR);
		$app->close();
	}
}