<?php

namespace App\Models;

use App\Enums\Settings\MenuNodeType;
use App\Enums\Settings\SettingsType;
use App\Lib\Definitions\MenuNode;
use App\Lib\Helpers\FileStorageHelper;
use App\Lib\Link;
use App\Traits\Models\IsCachedAsCollection;
use Illuminate\Database\Eloquent\Casts\Attribute;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Cache;

/**
 * @property-read \App\Enums\Settings\SettingsType $type  Enum SettingsType.
 * ! Note complete this with pipes when adding another SettingsType.
 * phpcs:ignore Generic.Files.LineLength.TooLong
 * @property array<\App\Lib\Definitions\MenuNode>|array<string,array<string|null>>|array<string,int>  $value The actual setting value.
 * @package App\Models
 */
class GeneralSetting extends Model
{
    use IsCachedAsCollection;

    /**
     * The primary key for the model.
     *
     * @var string
     */
    protected $primaryKey = 'type';

    /**
     * The "type" of the primary key ID.
     *
     * @var string
     */
    protected $keyType = SettingsType::class;

    /**
     * Indicates if the IDs are auto-incrementing.
     *
     * @var boolean
     */
    public $incrementing = false;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'value'
    ];

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

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     * @throws \ErrorException Not allowed to create an instance of this.
     */
    protected static function booted(): void
    {
        static::creating(fn() => throw new \ErrorException('Not allowed to create an instance of this'));
        static::updated(function (self $model) {
            if ($model->type === SettingsType::hotNews) {
                FileStorageHelper::removeOldFiles(
                    Arr::wrap(Arr::get($model->getOriginal('value'), 'picture')),
                    Arr::wrap($model->value['picture'])
                );
            }
            self::removeCached();
            self::resetCache($model->type);
        });
        static::deleting(fn() => throw new \ErrorException('Not allowed to create an instance of this'));
    }

    // * ROUTABLE

    /**
     * Get the value of the model's route key.
     *
     * @return mixed
     */
    public function getRouteKey(): mixed
    {
        /** @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';
    }

    // * GETTERS

    /**
     * Mutator for 'value' attribute.
     *
     * @return \Illuminate\Database\Eloquent\Casts\Attribute
     */
    public function value(): \Illuminate\Database\Eloquent\Casts\Attribute
    {
        return Attribute::make(
            get: fn($value): array => self::valueFromJson($this->type, $value),
        );
    }

    // * METHODS

    /**
     * Get the json layout for a setting type.
     *
     * @param  \App\Enums\Settings\SettingsType $type
     *
     * ! Note complete this with pipes when adding another SettingsType.
     * @return array<\App\Lib\Definitions\MenuNode>|array<string,array<string|null>>
     * @throws \ErrorException If $type is unhandled.
     */
    public static function getJsonLayout(SettingsType $type): array
    {
        return match ($type) {
            SettingsType::mainMenu            => collect(MenuNodeType::all())
                ->filter(fn(MenuNodeType $menuNodeType) => $menuNodeType !== MenuNodeType::link)
                ->map(fn(MenuNodeType $nodeType, int $key) => MenuNode::make(
                    $key + 1,
                    $nodeType->value(),
                    true,
                    $nodeType->label(),
                    !empty($nodeType->routeName()) ?
                        // phpcs:ignore Generic.Files.LineLength.TooLong
                        (new Link(routeName: $nodeType->routeName()))->toArray() : (new Link(url: 'https://example.net'))->toArray()
                ))->all(),
            SettingsType::hotNews             => [
                'text'          => 'le texte',
                'picture'       => null,
                'picture_alt'   => 'le texte alt de l\'image',
                'picture_title' => 'le titre de l\'image',
            ],
            SettingsType::offersCount         => [
                'count' => 0,
            ],
            SettingsType::breederMap => [
                'title'       => 'titre',
                'main_text'   => 'texte principal',
                'picto_text'  => 'texte du pictogramme',
            ],
                // @phpstan-ignore-next-line
            default => throw new \ErrorException("No instruction to seed setting type '{$type->label()}'")
        }; //end match
    }

    /**
     * Unserialize setting value.
     *
     * @param \App\Enums\Settings\SettingsType $type
     * @param string                           $json
     * ! Note complete this with pipes when adding another SettingsType.
     * @return array<\App\Lib\Definitions\MenuNode>|array<string,array<string|null>>
     * @throws \ErrorException If $type is unhandled.
     */
    public static function valueFromJson(SettingsType $type, string $json): array
    {
        return match ($type) {
            SettingsType::mainMenu            => collect(json_decode($json, true))
                ->map(fn(array $jsonLayout) => MenuNode::make(...$jsonLayout))->all(),
            SettingsType::hotNews     => json_decode($json, true),
            SettingsType::offersCount => json_decode($json, true),
            SettingsType::breederMap  => json_decode($json, true),
                // @phpstan-ignore-next-line
            default => throw new \ErrorException("No instruction to unserialize setting type '{$type->label()}'")
        };
    }

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

    /**
     * Get cached general setting associated to a given type.
     *
     * @param \App\Enums\Settings\SettingsType $type
     * @return mixed
     */
    public static function getCachedGeneralSetting(SettingsType $type): mixed
    {
        return Cache::rememberForever(
            sprintf('%sGeneralSetting', $type->name),
            fn() => self::query()->where('type', $type)->first()
        );
    }
}