<?php

namespace App\Services;

use App\Models\Applications\Application;
use App\Models\Objects\NirObject;
use App\Models\Pages\Page;
use App\Models\User;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\Auth;

class PermissionsService {
    private Model $model;
    private ?User $user;

    private array $rules = [
        NirObject::class => 'nirObject',
        Application::class => 'application',
        Page::class => 'page'
    ];

    public function __construct(Model $model, ?User $user = null) {
        $this->model = $model;
        $this->user = $user ?? Auth::user();
    }

    public function get(): array {
        $result = [];
        if ($this->user) {
            $rule = $this->rules[get_class($this->model)] ?? null;
            $func = "{$rule}Permissions";
            $result = method_exists($this, $func) ? $this->$func() : [];
            if ($this->user->isAdmin) $result['anything'] = true;
        }
        return $result;
    }


    public function nirObjectPermissions(): array {
        return ['edit' => $this->model->owner_id === $this->user->id];
    }

    public function applicationPermissions(): array {
        return ['edit' => $this->model->submitter_id === $this->user->id, 'reply' => $this->model->isExpert($this->user), 'manage' => $this->user->isApplicationsManager];
    }

    public function pagePermissions(): array {
        return ['edit' => $this->model->isEditable($this->user)];
    }

}