<?php


namespace App\Countries;


use App\Articles\Models\Article;
use App\Journeys\Models\Journey;
use App\MustDos\Models\MustDo;
use App\ToDos\Models\ToDo;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Collection;

class CountryService
{

    /**
     * Get all the models
     *
     * @param  Country  $country
     * @return Collection
     */
    public function getRelatedModels(Country $country) : Collection
    {
        $country->load(
            'mustDos', 'mustDos.translation',  'mustDos.headingImage',
            'toDos', 'toDos.translation', 'toDos.headingImage',
            'articles', 'articles.translation', 'articles.headingImage',
            'overnights','overnights.translation','overnights.headingImage',
            'journeys','journeys.translation','journeys.headingImage',
        );

        $sliderItems = collect();
        $sliderItems = $sliderItems->merge($country->journeys);
        $sliderItems = $sliderItems->merge($country->mustDos->where('show_in_slider', 1));
        $sliderItems = $sliderItems->merge($country->toDos->where('show_in_slider', 1));
        $sliderItems = $sliderItems->merge($country->articles->where('show_in_slider', 1));
        $sliderItems = $sliderItems->merge($country->overnights->where('show_in_slider', 1));

        return $sliderItems;
    }

    /**
     * @param  int  $countryId
     * @param  Model|null  $excludedModel
     * @return Collection
     */
    public function getSuggestions(int $countryId, Model $excludedModel = null): Collection
    {
        $country = Country::find($countryId);
        $country->load('mustDos','toDos','articles','journeys');

        $collection = collect();

        if($country->journeys->isNotEmpty()) {
            if(isset($excludedModel) && is_a($excludedModel, Journey::class))  {
                if($country->journeys->where('id','!=', $excludedModel->id)->count() > 1)
                    $collection->push($country->journeys->where('id','!=', $excludedModel->id)->random());
            }
            else $collection->push($country->journeys->random());
        }

        if($country->mustDos->isNotEmpty()) {
            if(isset($excludedModel) && is_a($excludedModel, MustDo::class))  {
                if($country->mustDos->where('id','!=', $excludedModel->id)->count() > 1)
                    $collection->push($country->mustDos->where('id','!=', $excludedModel->id)->random());
            }
            else $collection->push($country->mustDos->random());
        }

        if($country->toDos->isNotEmpty()) {
            if (isset($excludedModel) && is_a($excludedModel, ToDo::class))  {
                if($country->toDos->where('id','!=', $excludedModel->id)->count() > 1)
                    $collection->push($country->toDos->where('id', '!=', $excludedModel->id)->random());
            }
            else $collection->push($country->toDos->random());
        }

        if($country->articles->isNotEmpty()) {
            if (isset($excludedModel) && is_a($excludedModel, Article::class))  {
                if($country->articles->where('id','!=', $excludedModel->id)->count() > 1)
                    $collection->push($country->articles->where('id', '!=', $excludedModel->id)->random());
            }
            else $collection->push($country->articles->random());
        }

        // To bad we can't add them by loading the collection.
        foreach ($collection as $item) $item->load('translation','headingImage');

        return $collection;
    }

}