<?php

namespace App\Livewire\Chat;

use App\Events\ChatMessageUpdated;
use App\Models\Chat;
use App\Models\User;
use Livewire\Component;
use Illuminate\View\View;
use Illuminate\Support\Collection;

class MessageWindow extends Component
{
    public array|Collection $messages = [];

    public string $curMessage = '';

    public int $curUserId;

    public int|null $recipientUserId = null;

    public User|null $recipientUser = null;

    public  string $chanId;

    public User $curUser;

    public function getListeners(): array
    {
        return [
            'echo-private:direct-chat.'.$this->chanId.',ChatMessageUpdated' => 'notifyNewMessage',
            'updateRecipientId',
            'recipientUserIdUpdated' => '$refresh',
            // 'reloadUserEcho'
        ];
    }

    public function notifyNewMessage(array $e): void
    {
        $message = $e['message'];

        $this->messages = collect($this->messages)
            ->prepend($message);
    }

    public function updateRecipientId(int $id = null): void
    {
    }

    public function whisperTypeing(): void
    {
        $this->dispatch(
            'typing',
            [
                'chanId' => $this->chanId,
                'activePeer' => $this->curUserId,
                'activePeerName' => $this->curUser->name,
            ]
        );
    }

    // FIXME
    public function mount(int $recipientUserId = null): void
    {
        $this->recipientUserId = $recipientUserId;
        $this->recipientUser = User::find($recipientUserId);
        $this->curUser = auth()->user();
        $this->curUserId = $this->curUser->id;
        // $this->chanId = (int) $recipientUserId < (int) $this->curUserId
        //     ? $recipientUserId . "_" . $this->curUserId
        //     : $this->curUserId . "_" . $recipientUserId;
        if (is_null($recipientUserId)) {
            $this->messages = [];
        } else {
            $this->messages = (new Chat())->withLastTenMessages($this->curUserId, $recipientUserId)->get();
        }
    }

    public function render(): View
    {
        return view('livewire.chat.message-window');
    }

    public function sendChatMessage(): void
    {
        $chatMessage = [
            'data' => $this->curMessage,
            'created_at' => now()->setTimezone('UTC')->format('Y-m-d H:i:s'),
            'from_user_id' => $this->curUserId,
            'to_user_id' => $this->recipientUserId,
        ];

        if (mb_strlen(trim($this->curMessage)) < 1) {
            return;
        }

        $this->saveThisMessage($chatMessage);

        ChatMessageUpdated::dispatch($chatMessage);

        $this->messages = collect($this->messages)
            ->prepend($chatMessage);

        $this->reset('curMessage');
        $this->curMessage = '';
    }

    private function saveThisMessage(array $message): void
    {
        $newMessage = new Chat();
        $newMessage->from_user_id = $message['from_user_id'];
        $newMessage->to_user_id = $message['to_user_id'];
        $newMessage->data = $message['data'];
        $newMessage->save();
    }
}