<?php

namespace App\Http\Livewire\Whatsapp;

use App\Models\WhatsappConversation;
use App\Models\WhatsappUser;
use Livewire\Component;
use Livewire\WithPagination;
use Illuminate\Support\Facades\Http;
use App\Models\WhatsappSystemConfig;

class ShowConversaciones extends Component
{
    use WithPagination;

    public ?int $selectedUserId = null;
    public string $search = '';
    public string $replyText = '';
    public ?WhatsappUser $selectedUser = null;

    protected $listeners = ['refreshChatList' => '$refresh'];

    public function selectUser(int $userId): void
    {
        $this->selectedUserId = $userId;
        $this->selectedUser   = WhatsappUser::find($userId);
        $this->replyText      = '';

        // Marcar mensajes como leídos
        WhatsappConversation::where('user_id', $userId)
            ->where('direction', 'incoming')
            ->where('is_read', 0)
            ->update(['is_read' => 1]);
    }

    public function sendReply(): void
    {
        $this->validate(['replyText' => 'required|string|max:4096']);

        if (! $this->selectedUser) {
            return;
        }

        $token         = WhatsappSystemConfig::get('whatsapp_token');
        $phoneNumberId = WhatsappSystemConfig::get('phone_number_id');
        $apiUrl        = WhatsappSystemConfig::get('whatsapp_api_url', 'https://graph.facebook.com/v22.0/');

        $response = Http::withToken($token)
            ->post("{$apiUrl}{$phoneNumberId}/messages", [
                'messaging_product' => 'whatsapp',
                'to'                => $this->selectedUser->phone_number,
                'type'              => 'text',
                'text'              => ['body' => $this->replyText],
            ]);

        if ($response->successful()) {
            WhatsappConversation::create([
                'user_id'      => $this->selectedUserId,
                'message_id'   => $response->json('messages.0.id'),
                'direction'    => 'outgoing',
                'message_type' => 'text',
                'content'      => $this->replyText,
                'status'       => 'sent',
            ]);

            $this->replyText = '';
            $this->dispatch('scrollToBottom');
        } else {
            session()->flash('error', 'Error al enviar el mensaje: ' . $response->body());
        }
    }

    public function toggleBlockUser(): void
    {
        if (! $this->selectedUser) {
            return;
        }

        $newStatus = $this->selectedUser->status === 'blocked' ? 'active' : 'blocked';
        $this->selectedUser->update(['status' => $newStatus]);
        $this->selectedUser->refresh();
    }

    public function render()
    {
        $users = WhatsappUser::when($this->search, function ($q) {
                $q->where(function ($q2) {
                    $q2->where('name', 'like', '%' . $this->search . '%')
                       ->orWhere('phone_number', 'like', '%' . $this->search . '%');
                });
            })
            ->withCount(['conversations as unread_count' => function ($q) {
                $q->where('direction', 'incoming')->where('is_read', 0);
            }])
            ->with('lastMessage')
            ->orderByDesc(
                WhatsappConversation::select('created_at')
                    ->whereColumn('user_id', 'whatsapp_users.id')
                    ->orderByDesc('created_at')
                    ->limit(1)
            )
            ->paginate(20);

        $messages = $this->selectedUserId
            ? WhatsappConversation::where('user_id', $this->selectedUserId)
                ->orderBy('created_at')
                ->get()
            : collect();

        return view('livewire.whatsapp.show-conversaciones', compact('users', 'messages'));
    }
}