<?php

namespace App\Filament\Pages;

use App\Services\NetworkService;
use App\Settings\NetworkSettings;
use Filament\Forms;
use Filament\Forms\Form;
use Filament\Pages\SettingsPage;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Components\Select;
use Filament\Forms\Components\Fieldset;

class ManageNetwork extends SettingsPage
{
    protected static ?string $navigationIcon = 'heroicon-o-cog-6-tooth';

    protected static string $settings = NetworkSettings::class;

    protected static ?string $navigationLabel = '网络连接配置管理';

    protected static ?string $title = '网络连接配置管理';

    public function form(Form $form): Form
    {
        // 获取当前网络接口
        $interfaces = NetworkService::getNetworkInterfaces();

        return $form
            ->schema([
                // 添加网络接口选择框
                Select::make('network_interface')
                    ->label('选择网络接口')
                    ->options(array_combine(array_keys($interfaces), array_keys($interfaces)))
                    ->reactive()
                    ->afterStateUpdated(function ($state, callable $set) use ($interfaces) {
                        // 调试输出：检查当前选择的接口
                        error_log("选择的接口: " . $state);

                        // 当选择框的值更新时，自动填充对应的网络信息
                        if (isset($interfaces[$state])) {
                            $set('ip', $interfaces[$state]['ip'] ?? '无IP地址');
                            $set('mask', $interfaces[$state]['mask'] ?? '无子网掩码');
                            // 假设我们通过其他方式获取网关（如手动输入或自动获取）
//                            $set('gateway', '自动获取或手动输入的值');
                            error_log("ip " . $interfaces[$state]['ip']);
                            error_log("mask " . $interfaces[$state]['mask']);
                        }
                        else{
                            error_log("未找到接口：" . $state);
                        }
                    }),

                // 动态显示端口信息
                Fieldset::make('端口信息')
                    ->schema([
                        TextInput::make('ip')
                            ->label("IP地址")
                            ->readOnly() // 禁用以表示这是自动填充的字段
                            ->reactive(),
                        TextInput::make('mask')
                            ->label('子网掩码')
                            ->readOnly()
                            ->reactive(),
                    ])
                    ->visible(fn($get) => !is_null($get('network_interface'))) // 检查是否有选择的接口
                    ->reactive(),

                // DHCP选项
                Select::make('dhcp_enabled')
                    ->options([
                        true => "是",
                        false => "否"
                    ])
                    ->default(false)
                    ->label("DHCP启用")
                    ->required()
                    ->reactive(),

                // 动态显示的网络信息字段
                Fieldset::make('网络配置')
                    ->schema([
                        TextInput::make('ip_address')
                            ->label("IP地址")
                            ->placeholder('如127.0.0.1')
                            ->required(),

                        Select::make('subnet_mask')
                            ->label('子网掩码')
                            ->options([
                                "8" => "255.0.0.0 /8",
                                "9" => "255.128.0.0 /9",
                                "10" => "255.192.0.0 /10",
                                "11" => "255.224.0.0 /11",
                                "12" => "255.240.0.0 /12",
                                "13" => "255.248.0.0 /13",
                                "14" => "255.252.0.0 /14",
                                "15" => "255.254.0.0 /15",
                                "16" => "255.255.0.0 /16",
                                "17" => "255.255.128.0 /17",
                                "18" => "255.255.192.0 /18",
                                "19" => "255.255.224.0 /19",
                                "20" => "255.255.240.0 /20",
                                "21" => "255.255.248.0 /21",
                                "22" => "255.255.252.0 /22",
                                "23" => "255.255.254.0 /23",
                                "24" => "255.255.255.0 /24",
                                "25" => "255.255.255.128 /25",
                                "26" => "255.255.255.192 /26",
                                "27" => "255.255.255.224 /27",
                                "28" => "255.255.255.240 /28",
                                "29" => "255.255.255.248 /29",
                                "30" => "255.255.255.252 /30",
                                "31" => "255.255.255.254 /31",
                                "32" => "255.255.255.255 /32",
                            ])
                            ->required(),

                        TextInput::make('gateway')
                            ->label('网关')
                            ->placeholder('如192.168.1.1')
                            ->required(),

                        TextInput::make('dns_server_1')
                            ->label('DNS地址')
                            ->placeholder('如6.6.6.6')
                            ->required(),

                        TextInput::make('dns_server_2')
                            ->label('DNS备用地址')
                            ->placeholder('如114.114.114.114')
                            ->required(),
                    ])
                    ->visible(fn($get) => in_array($get('dhcp_enabled'), [false])),
            ]);
    }

    public function save(): void
    {
        // 调用父类的保存方法以持久化设置
        parent::save();

        // 保存后执行终端命令
        $this->executeCommands();
    }

    protected function executeCommands(): void
    {
        // 获取用户输入的网络配置
        $networkInterface = $this->form->getState()['network_interface'] ?? '';
        $dhcpEnabled = $this->form->getState()['dhcp_enabled'] ?? false;

        error_log('接口名称：' . $networkInterface);
        error_log('dhcp：' . $dhcpEnabled);

        $ipAddress = $this->form->getState()['ip_address'] ?? '';
        $subnetMask = $this->form->getState()['subnet_mask'] ?? '';
        $gateway = $this->form->getState()['gateway'] ?? '';
        $dns1 = $this->form->getState()['dns_server_1'] ?? '';
        $dns2 = $this->form->getState()['dns_server_2'] ?? '';
        if ($dhcpEnabled) {

            // 如果启用 DHCP，设置为使用 DHCP
            $commands = [
                "nmcli con mod '$networkInterface' ipv4.method auto ipv4.addresses \"\" ipv4.gateway \"\" ipv4.dns \"\"",
                "nmcli con down '$networkInterface'",
                "nmcli con up '$networkInterface'"
            ];

            foreach ($commands as $command) {
                $output = [];
                $returnVar = 0;
                exec($command, $output, $returnVar);

                // 记录输出和返回状态以便调试
                error_log("命令: $command");
                error_log("输出: " . implode("\n", $output));
                error_log("返回状态: $returnVar");

                // 如果需要，处理错误
                if ($returnVar !== 0) {
                    error_log("执行命令出错: $command");
                }
            }
        } else {
            // 根据接口和用户输入构建命令
            $commands = [
                "nmcli con mod '$networkInterface' ipv4.method manual ipv4.addresses $ipAddress/$subnetMask ipv4.gateway $gateway ipv4.dns '$dns1 $dns2'",
                "nmcli con down '$networkInterface'",
                "nmcli con up '$networkInterface'", // 重新激活连接
            ];

            foreach ($commands as $command) {
                $output = [];
                $returnVar = 0;
                exec($command, $output, $returnVar);

                // 记录输出和返回状态以便调试
                error_log("命令: $command");
                error_log("输出: " . implode("\n", $output));
                error_log("返回状态: $returnVar");

                // 如果需要，处理错误
                if ($returnVar !== 0) {
                    error_log("执行命令出错: $command");
                }
            }
        }
    }


}