<?php

namespace App\Providers;

use App\Handlers\Registrators\TemplateRegistrator;
use App\Models\Module;
use App\Models\Template;
use Illuminate\Support\Facades\App;
use Illuminate\Support\ServiceProvider;
use InvalidArgumentException;

class TemplateServiceProvider extends ServiceProvider
{
    private function getTemplate()
    {
        // select template
        $template = Module::where('is_template', true)
                          ->where('enabled', true)
                          ->first();

        if ($template) {
            $template->settings = json_decode($template->module_settings);
        }

        return $template;
    }

    public function boot()
    {
        // ignore running from artisan
        if (App::runningInConsole()) {
            $this->publishViewResources();

            return;
        }

        $template = $this->getTemplate();

        if (!$template) {
            throw new \ErrorException('Template is not set, cannot continue');
        }

        // include files
        $files = isset($template->settings->files) ? $template->settings->files : [];

        foreach ($files as $file) {
            include_once $file;
        }

        // register templates
        $publicTemplates = call_user_func([$template->handler, 'getPublicTemplatePaths']);

        if (!is_array($publicTemplates)) {
            throw new \ErrorException($template->handler . '::getPublicTemplatePaths() must return array!');
        }

        if (empty($publicTemplates)) {
            return;
        }

        /**
         * @var $registrator TemplateRegistrator
         */
        $registrator = $this->app->make('registerTemplateDir');
        foreach ($publicTemplates as $template) {
            // setup some global variables
            $module = strtolower($template['module']);
            $namespace = isset($template['namespace']) ? $template['namespace'] : strtolower($template['module']);
            try {
                $registrator->setBaseDirectory('resources/views/modules/' . $module);
                $registrator->setNamespace($namespace);
                $registrator->setModuleId(call_user_func([config($module . '.handler'), 'getModuleId']));

                // register path with current template name
                $registrator->register('visitor', $template['templateName']);
            } catch (InvalidArgumentException $e) {
                // ignore this exception
            }
        }
    }

    /**
     * Register the service provider.
     *
     * @return void
     */
    public function register()
    {
    }

    /**
     * Publish all public assets from all themes
     */
    private function publishViewResources()
    {
        $template = $this->getTemplate();
        if (!$template) {
            return;
        }

        $templateDir = app_path('../templates/' . $template->settings->staticName . '/Resources');
        $assetsDir = $templateDir . '/' . Template::ASSETS_DIRECTORY;
        $viewsDir = $templateDir . '/views';

        // publish assets if exists for current theme
        if (is_dir($assetsDir)) {
            $this->publishes([$assetsDir => public_path('assets/visitor')], 'public-assets');
        }

        // publish base visitors views
        $this->publishes([$viewsDir . '/visitor' => resource_path('views/visitor')], 'module-views');

        // publish admin views
        if (is_dir($viewsDir . '/modules')) {
            $this->publishes([$viewsDir . '/modules' => resource_path('views/modules')], 'module-views');
        }
    }
}