<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Arr;
use Illuminate\Support\Str;

use App\Models\PublicationLayout;
use App\Models\Tag;

use App\Utilities\Paginate;

use App\Traits\ContentElementTrait;
use App\Traits\TagsTrait;
use App\Traits\AppendAttributesTrait;
use App\Traits\PhotosTrait;

use App\Contracts\SearchResultContract;
use App\Utilities\SearchResult;

class PublicationList extends Model implements SearchResultContract
{
    use HasFactory;
    use ContentElementTrait;
    use TagsTrait;
    use PhotosTrait;
    use AppendAttributesTrait;

    protected $with = ['tags', 'publicationLayouts'];
    protected $casts = [
        'hide_paginator' => 'boolean'
    ];

    public function saveContent(array $input, $id = null)
    {
        if ($id >= 1) {
            $new_version = false;
            $publication_list = PublicationList::findOrFail($id);
        } else {
            $new_version = true;
            $publication_list = new PublicationList();
        }

        $publication_list->header = Arr::get($input, 'header');
        $publication_list->hide_paginator = Arr::get($input, 'hide_paginator');
        $publication_list->type = Arr::get($input, 'type');
        $publication_list->save();

        $publication_list->saveTags($input);
        $publication_list->savePublicationLayouts($input, $new_version);

        $publication_list->refresh();

        cache()->tags([cache_name($publication_list)])->flush();
        return $publication_list;
    }

    public function getPublicationsAttribute()
    {
        if (!$this->type) {
            return Paginate::create(collect());
        }
        $class_name = 'App\\Models\\'.Str::studly($this->type);
        return Paginate::create((new $class_name())->getByTags(['tags' => $this->tags]));
    }

    public function publicationLayouts()
    {
        return $this->hasMany(PublicationLayout::class);
    }

    public function savePublicationLayouts($input, $new_version = false)
    {
        $old_layouts = $this->publicationLayouts()->get();

        $new_layouts = collect();
        if (Arr::get($input, 'publication_layouts')) {
            foreach (Arr::get($input, 'publication_layouts') as $publication_layout_input) {
                $publication_layout = (new PublicationLayout())->savePublicationLayout($publication_layout_input, $this, $new_version);
                $new_layouts->push($publication_layout);
            }
        }

        $old_layouts->filter(function ($layout) use ($new_layouts) {
            return !$new_layouts->contains('id', $layout->id);
        })->each->delete();

        return $this;
    }

    public function getSearchFieldsAttribute()
    {
        return [
            'header',
        ];
    }

    public function getSearchResultTitle($default = null)
    {
        if (mb_strlen($this->header) > 0) {
            return $this->header;
        }
        return $default;
    }

    public function getSearchResultPreview($terms)
    {
        return SearchResult::truncatePreview($this->header, $terms);
    }

    public function getSearchResultRank($terms)
    {
        $rank = 0;
        foreach ($terms as $term) {
            $rank += mb_substr_count($this->header, $term);
        }
        return $rank;
    }
}