<?php
namespace App\KommaApp\Kms\Core;

use App\KommaApp\Kms\Core\Sections\Section;
use Illuminate\Database\Eloquent\Model;
use App\KommaApp\Users\Models\User;

class SectionController extends KmsController
{
    /** @var Section $section */
    protected $section;
    protected $slug = null;

    /**
     * This method is called on the overview page.
     * It will render the section and view.
     *
     * @return mixed
     */
    public function index()
    {
        //Disable the right pane
        $this->section->showEntity = false;

        //Render the page
        $this->section->loadModels(); //we need to do this here because this won't work in section constructors since there the authenticated user is not available in laravel 5.3

        $this->section->setForModelName($this->forModelName);
        return $this->section->render();
    }

    /**
     * This method is called when a item is selected.
     * By default it will generate an edit form.
     *
     * @param Model $model
     * @return mixed
     */
    public function show($model)
    {
        //Call the edit method
        $this->section->loadModels(); //we need to do this here because this won't work in section constructors since there the authenticated user is not available in laravel 5.3
        return $this->edit($model);
    }

    /**
     * This method is called when we want to edit an item.
     * It is called from the $this->show method.
     *
     * @param $model
     * @return mixed
     */
    public function edit($model)
    {
        if (is_string($model) || is_int($model)) {
            //Get the id from the uri
//            $id = \Route::current()->getParameter($this->slug);
            $model = \Route::getCurrentRoute()->parameter($this->slug);
        }

        // Build section tabs
        $this->section->getSectionTabDirector()->buildTabs();

        //Load the model
        $this->section->loadModel($model);

        //Set error when available
//        $this->section->setErrors(\Session::get('errors'));
        //Render the form

        $this->section->setForModelName($this->forModelName);
        return $this->section->render();
    }

    /**
     * This method will generate a new item form
     *
     * @return mixed
     */
    public function create()
    {
        //Set errors
//        $this->section->setErrors(\Session::get('errors'));

        // Build section tabs
        $this->section->getSectionTabDirector()->buildTabs();

        //Load an empty model for the form
        $this->section->loadModel();

        $this->section->loadModels();

        //Render the form
        $this->section->setForModelName($this->forModelName); //TODO fixme
        return $this->section->render();
    }

    /**
     * This method will validate and save the model
     * It is called on create form submit,
     * and it is called on the form edit.
     *
     * @param null|Model $model
     * @param bool $updateExistingModel If we are updating an model that exists (true) or a new one (false)
     * @return mixed
     * @throws \Exception
     */
    public function store($model = null, $updateExistingModel = false)
    {
        $model = $this->section->setOrCreateModel($model);

        $this->section->generateAttributesAndAddThemToTabs();

        //Validate the form data
        $validator = $this->section->validateInputAndReturnValidator();

        //Check if the validator fails
        if ($validator->fails()) {

            //It fails, redirect back with errors
            return \Redirect::back()->withInput()->withErrors($validator->messages());

        }

        $id = $this->section->save($model);

        $routeParameters = [];
        if($this->kms->getSiteSlug())
            $routeParameters['site'] = $this->kms->getSiteSlug();
            $routeParameters[$this->slug] = $id;

        return \Redirect::action('\\'.get_class($this) . '@show', $routeParameters)
            ->with('success', __('kms/global.saved'))
            ->with('current_tab' , \Input::get('tab-slug')); // Pass the opened tab
    }


    /**
     * This method handles the update functionality.
     * And is called by the edit form.
     * The method is route model binded via the RouteServiceProvider to the user class
     *
     * @param $idOrModel User|int
     * @return mixed
     * @throws \Exception
     */
    public function update($idOrModel)
    {
        if(!is_a($idOrModel, Model::class)) throw new \InvalidArgumentException("Please make sure that you've set route model binding for the section '".get_class($this)."'");

        //Handle the rest in the store method
        return $this->store($idOrModel, true);
    }

    /**
     * This method is called when a item will be deleted
     *
     * @param Model $model
     * @return mixed
     * @throws \Exception
     */
    public function destroy(Model $model)
    {
        //Call the destroy method
        $this->section->destroy($model);

        //Return to the item index
        return \Redirect::action('\\' . get_class($this) . '@index')
            ->with('message', __('kms/global.removed'));
    }
}