<?php

namespace App\Livewire;

use Livewire\Component;
use Livewire\Attributes\Layout;
use Illuminate\Support\Facades\Auth;
use Spatie\Permission\Models\Role;
use Spatie\Permission\PermissionRegistrar;

#[Layout('layouts.app')]
class RoleManager extends Component
{
    // View modal
    public ?int $viewingRole = null;

    // Bulk selection
    public array $selected = [];
    public bool $selectAll = false;

    private const PROTECTED_ROLES = ['Admin'];
    private const CORE_PERMISSION = 'manage all';

    public function mount(): void
    {
        abort_unless(Auth::user()?->can(self::CORE_PERMISSION), 403);
    }

    private function flushCache(): void
    {
        app(PermissionRegistrar::class)->forgetCachedPermissions();
    }

    public function updatedSelectAll($value): void
    {
        $this->selected = $value
            ? Role::pluck('id')->map(fn ($id) => (string) $id)->toArray()
            : [];
    }

    // ── View ─────────────────────────────────────────────────────────────────

    public function openView(int $id): void
    {
        $this->viewingRole = $id;
    }

    public function closeView(): void
    {
        $this->viewingRole = null;
    }

    // ── Delete (single / bulk) ─────────────────────────────────────────────────

    public function delete(int $id): void
    {
        $role = Role::findOrFail($id);
        if (in_array($role->name, self::PROTECTED_ROLES, true)) {
            $this->dispatch('notify', "El rol '{$role->name}' está protegido y no se puede borrar.");
            return;
        }
        $role->delete();
        $this->selected = array_values(array_diff($this->selected, [(string) $id, $id]));
        $this->flushCache();
        $this->dispatch('notify', 'Rol eliminado');
    }

    public function bulkDelete(): void
    {
        $roles = Role::whereIn('id', $this->selected)->get();
        $deleted = 0;
        $skipped = 0;
        foreach ($roles as $role) {
            if (in_array($role->name, self::PROTECTED_ROLES, true)) { $skipped++; continue; }
            $role->delete();
            $deleted++;
        }
        $this->selected = [];
        $this->selectAll = false;
        $this->flushCache();
        $msg = "{$deleted} rol(es) eliminados";
        if ($skipped) $msg .= " ({$skipped} protegido(s) omitido(s))";
        $this->dispatch('notify', $msg);
    }

    public function render()
    {
        return view('livewire.role-manager', [
            'roles'   => Role::with('permissions')->withCount('users')->orderBy('name')->get(),
            'viewing' => $this->viewingRole
                ? Role::with('permissions')->withCount('users')->find($this->viewingRole)
                : null,
        ]);
    }
}