<?php

namespace App\Http\Controllers\Api;

use App\Filters\MessageFilter;
use App\Http\Resources\MessageResource;
use App\Models\Message;
use App\Models\MessageReadingLog;
use Illuminate\Http\Request;
use Throwable;

class MessageController extends Controller
{
    public function index(Request $request)
    {
        /** @var \App\Models\Employee */
        $user = $request->user();

        /** @var \Illuminate\Contracts\Pagination\Paginator */
        $paginator = Message::filter($request->input(), MessageFilter::class)
            ->ofEmployee($user)
            ->withCount([
                'readingLogs' => fn ($query) => $query->where('employee_id', $user->id),
            ])
            ->latest('id')
            ->paginate($request->query('per_page', 20));

        $list = collect($paginator->items())->map(function (Message $message) {
            return array_merge(
                MessageResource::make($message)->resolve(),
                ['is_read' => $message->reading_logs_count],
            );
        });

        // 分页
        return [
            'data' => $list,
            'meta' => [
                'total' => $paginator->total(),
            ],
        ];
    }

    public function show($id, Request $request): MessageResource
    {
        /** @var \App\Models\Employee */
        $user = $request->user();

        $message = Message::ofEmployee($user)->findOrFail($id);

        $message->readingLogs()->firstOrCreate([
            'employee_id' => $user->id,
        ]);

        return MessageResource::make($message);
    }

    public function readAll(Request $request)
    {
        /** @var \App\Models\Employee */
        $user = $request->user();

        $messages = Message::ofEmployee($user)
            ->whereDoesntHave('readingLogs', fn ($query) => $query->where('employee_id', $user->id))
            ->get();

        try {
            $datetime = date('Y-m-d H:i:s');

            MessageReadingLog::insert(
                $messages->map(fn (Message $message) => [
                    'message_id' => $message->id,
                    'employee_id' => $user->id,
                    'created_at' => $datetime,
                    'updated_at' => $datetime,
                ])->all()
            );
        } catch (Throwable $e) {
            report($e);
        }

        return response()->noContent();
    }
}