<?php

namespace App\Models;

use App\Enums\StaticPageType;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Str;
use Uwil\LaravelCommon\Helpers\ToolboxHelper;

/**
 * @property \App\Enums\StaticPageType       $type            Page type (StaticPageEnum).
 * @property string                          $seo_title       Seo title about 70 chars as recommended.
 * @property string                          $seo_description Seo description about 160 chars as recommended.
 * @property string                          $title           Title for the page.
 * @property string                          $slug            Slug of the title for the page.
 * @property array                           $data            MINICRUD - Page content.
 * @property-read \Illuminate\Support\Carbon $created_at      Created date.
 * @property-read \Illuminate\Support\Carbon $updated_at      Updated date.
 *
 * @property-read \Illuminate\Database\Eloquent\Relations\MorphMany $sections Get Sections of the static page.
 */
class StaticPage extends Model
{
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'seo_title',
        'seo_description',
        'title',
        'content',
        'type',
        'slug',
        'created_at',
        'updated_at'
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'type' => StaticPageType::class,
    ];

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted(): void
    {
        static::creating(function (self $model) {
            // * ASSERTIONS
            self::assertTitleIsUnique($model->title);

            // * CHANGES
            $model->slug = Str::slug($model->title);
        });
        static::updating(function (self $model) {

            // * ASSERTIONS
            self::assertTitleIsUnique($model->title, $model->id);

            // * CHANGES
            $model->slug = Str::slug($model->title);

            self::resetCache($model->type);
        });
    }

    // * ROUTABLE

    /**
     * Get the value of the model's route key.
     *
     * @return mixed
     */
    public function getRouteKey()
    {
        /** @var \App\Enums\StaticPageType */
        $enum = $this->getAttribute($this->getRouteKeyName());
        return $enum->value();
    }

    /**
     * Get the route key for the model.
     *
     * ! Type is the routable parameter
     *
     * @return string
     */
    public function getRouteKeyName(): string
    {
        return 'type';
    }

    // * METHODS

    /**
     * Asserts using validation that the title is unique
     *
     * @param string|null  $title
     * @param integer|null $id
     * @return void
     * @throws \Illuminate\Validation\ValidationException If an actu title already exists.
     */
    private static function assertTitleIsUnique(string|null $title, ?int $id = null)
    {
        $table = (new self())->getTable();
        ToolboxHelper::assertFieldIsUnique($table, 'title', $title, $id);
        ToolboxHelper::assertFieldIsUnique($table, 'slug', Str::slug($title), $id);
    }

    /**
     * Reset all cache elements related to this model.
     *
     * @param \App\Enums\StaticPageType $type
     * @return void
     */
    private static function resetCache(StaticPageType $type): void
    {
        Cache::forget(sprintf('%sStaticPage', $type->name));
        self::getCachedStaticPage($type);
    }

    /**
     * Get cached static page associated to a given type.
     *
     * @param \App\Enums\StaticPageType $type
     * @return \App\Models\StaticPage
     */
    public static function getCachedStaticPage(StaticPageType $type): \App\Models\StaticPage
    {
        return Cache::rememberForever(
            sprintf('%sStaticPage', $type->name),
            fn() => self::query()->where('type', $type)->first()
        );
    }
}