<?php

namespace App\Http\Controllers\Api\V1\Me;

use App\Http\Controllers\Api\V1\ApiController;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class MyNotificationsController extends ApiController
{
    public function index(Request $request): JsonResponse
    {
        $data = $request->validate([
            'unread_only' => ['nullable', 'boolean'],
            'per_page' => ['nullable', 'integer', 'min:1', 'max:100'],
        ]);
        $perPage = (int) ($data['per_page'] ?? 25);
        $unreadOnly = filter_var($data['unread_only'] ?? false, FILTER_VALIDATE_BOOL);

        $user = $request->user();
        $query = $unreadOnly ? $user->unreadNotifications() : $user->notifications();
        $page = $query->paginate($perPage);

        $items = $page->getCollection()->map(fn ($n) => [
            'id' => $n->id,
            'type' => class_basename($n->type),
            'data' => $n->data,
            'read_at' => $n->read_at?->toIso8601String(),
            'created_at' => $n->created_at?->toIso8601String(),
        ])->all();

        return $this->ok($items, null, [
            'page' => $page->currentPage(),
            'per_page' => $page->perPage(),
            'total' => $page->total(),
            'last_page' => $page->lastPage(),
            'unread_count' => $user->unreadNotifications()->count(),
        ]);
    }

    public function markRead(Request $request, string $id): JsonResponse
    {
        $notification = $request->user()->notifications()->where('id', $id)->first();
        if (! $notification) {
            return $this->notFound('Notification not found');
        }

        $notification->markAsRead();

        return $this->ok(['read_at' => $notification->read_at->toIso8601String()]);
    }

    public function markAllRead(Request $request): JsonResponse
    {
        $count = $request->user()->unreadNotifications()->count();
        $request->user()->unreadNotifications->markAsRead();

        return $this->ok(['marked_read' => $count], "Marked {$count} as read");
    }

    public function unreadCount(Request $request): JsonResponse
    {
        return $this->ok([
            'unread_count' => $request->user()->unreadNotifications()->count(),
        ]);
    }
}