<?php

namespace App\Livewire\Forms;

use Livewire\Component;
use WireUi\Traits\WireUiActions;
use App\Models\Room;
use App\Models\BroadcastTemplate;
use App\Services\TcpSocketClient;

class BroadcastTestForm extends Component
{
    use WireUiActions;

    protected $listeners = ['openModal', 'closeModal'];

    // 常數定義
    private const ALL_ROOMS_VALUE = 'all';
    private const RESERVED_VARIABLES = ['room_name', 'date', 'time'];

    public bool $showModal = false;
    public ?string $prefix = "";
    public ?string $content = "";
    public ?string $roomId = null;
    public array $roomOptions = [];
    public array $variables = [];

    public function mount()
    {
        $this->roomOptions = collect([
            ['name' => '全部', 'value' => self::ALL_ROOMS_VALUE],
        ])->merge(
            Room::where('type', '!=', 'svr')->get()->map(fn ($room) => [
                'name'  => $room->type->value . $room->name,
                'value' => $room->id,
            ])
        )->toArray();
    }

    public function openModal($id = null)
    {
        $broadcast = BroadcastTemplate::findOrFail($id);
        $this->parseVariables($broadcast->content);
        $this->content = $broadcast->content;
        $this->showModal = true;
    }

    public function closeModal()
    {
        $this->resetFields();
        $this->showModal = false;
    }

    private function parseVariables(string $content): void
    {
        preg_match_all('/\*\*(\w+)\*\*/', $content, $matches);
        $this->variables = [];

        foreach ($matches[1] as $varName) {
            if (!in_array($varName, self::RESERVED_VARIABLES, true)) {
                $this->variables[$varName] = '';
            }
        }
    }

    public function send()
    {
        $rooms = $this->roomId === self::ALL_ROOMS_VALUE
            ? Room::where('type', '!=', 'svr')
                ->where('is_online', 1) // 只發送給在線房間
                ->get()
            : Room::where('id', $this->roomId)->get();

        foreach ($rooms as $room) {
            $message = $this->buildMessage($room);

            try {
                $client = new TcpSocketClient($room->internal_ip, $room->port);
                $client->send($this->prefix . $message);
            } catch (\Throwable $e) {
                $this->notification()->send([
                    'icon' => 'error',
                    'title' => '發送失敗',
                    'description' => "❌ 房間 {$room->name} 發送失敗：{$e->getMessage()}",
                ]);
                continue;
            }
        }

        $this->notification()->send([
            'icon' => 'success',
            'title' => '發送完成',
            'description' => $this->roomId === self::ALL_ROOMS_VALUE
                ? '✅ 已發送至所有包廂'
                : "✅ 已發送至房間 {$rooms->first()->name}",
        ]);

        $this->resetFields();
        $this->showModal = false;
        $this->dispatch('pg:eventRefresh-text-ads-table');
    }

    private function buildMessage(Room $room): string
    {
        $message = $this->content;

        // 保留變數替換
        $message = str_replace("**room_name**", $room->type->labels() . '.' . $room->name, $message);
        $message = str_replace("**date**", now()->format('Y-m-d'), $message);
        $message = str_replace("**time**", now()->format('H:i'), $message);

        // 自訂變數替換
        foreach ($this->variables as $key => $value) {
            $message = str_replace("**{$key}**", $value, $message);
        }

        return $message;
    }

    private function resetFields(): void
    {
        $this->content = '';
        $this->roomId = null;
        $this->variables = [];
        $this->prefix = '';
    }

    public function render()
    {
        return view('livewire.forms.broadcast-test-form');
    }
}