<?php

namespace Paymenter\Extensions\Servers\Proxmox\Admin\Resources\IPPoolResource\RelationManagers;

use Filament\Forms;
use Filament\Forms\Form;
use Filament\Forms\Get;
use Filament\Notifications\Notification;
use Filament\Resources\RelationManagers\RelationManager;
use Filament\Tables;
use Filament\Tables\Table;

class IPAddressRelationManager extends RelationManager
{
    protected static string $relationship = 'ipAddresses';

    // Set label to IP Addresses
    protected static ?string $label = 'IP Address';

    public function form(Form $form): Form
    {
        return $form
            ->schema([
                Forms\Components\Select::make('type')
                    ->label('Type')
                    ->options([
                        'ipv4' => 'IPv4',
                        'ipv6' => 'IPv6',
                    ])
                    ->default('ipv4')
                    ->disabledOn('edit')
                    ->reactive()
                    ->required(),
                Forms\Components\TextInput::make('ip')
                    ->label('IP Address')
                    ->required()
                    ->maxLength(fn (Get $get) => $get('type') === 'ipv4' ? 15 : 39) // 15 for IPv4, 39 for IPv6
                    ->disabledOn('edit')
                    ->unique(ignoreRecord: true)
                    ->placeholder('Enter the IP address'),
                Forms\Components\TextInput::make('gateway')
                    ->label('Gateway')
                    ->required()
                    ->maxLength(fn (Get $get) => $get('type') === 'ipv4' ? 15 : 39) // 15 for IPv4, 39 for IPv6
                    ->placeholder('Enter the gateway'),
                Forms\Components\TextInput::make('netmask')
                    ->label('Netmask')
                    ->required()
                    ->maxLength(fn (Get $get) => $get('type') === 'ipv4' ? 15 : 39) // 15 for IPv4, 39 for IPv6
                    ->placeholder('Enter the netmask'),
                Forms\Components\TextInput::make('mac_address')
                    ->label('MAC Address')
                    ->maxLength(255)
                    ->placeholder('Enter the MAC address'),
                Forms\Components\Select::make('server_id')
                    ->label('Server')
                    ->relationship('server', 'hostname')
                    ->searchable()
                    ->preload()
                    ->helperText('Select a server to assign this IP address')
                    ->placeholder('Select a server'),
            ]);
    }

    public function table(Table $table): Table
    {
        return $table
            ->recordTitleAttribute('ip')
            ->columns([
                Tables\Columns\TextColumn::make('ip')->label('IP Address')->searchable(),
                Tables\Columns\TextColumn::make('server.hostname')->label('Server')->sortable()->searchable(),
                Tables\Columns\TextColumn::make('gateway'),
                Tables\Columns\TextColumn::make('mac_address')->label('MAC Address'),
            ])
            ->filters([
                //
            ])
            ->headerActions([
                Tables\Actions\CreateAction::make(),
                Tables\Actions\Action::make('bulkaddaddress')
                    ->label('Bulk Add IP Addresses')
                    ->icon('ri-add-line')
                    ->form(function () {
                        return [
                            Forms\Components\Select::make('type')
                                ->label('Type')
                                ->options([
                                    'ipv4' => 'IPv4',
                                    'ipv6' => 'IPv6',
                                ])
                                ->default('ipv4')
                                ->reactive()
                                ->required(),
                            Forms\Components\TextInput::make('start_ip')
                                ->label('Start IP Address')
                                ->required()
                                ->maxLength(fn (Get $get) => $get('type') === 'ipv4' ? 15 : 39) // 15 for IPv4, 39 for IPv6
                                ->placeholder('Enter the start IP address'),
                            Forms\Components\TextInput::make('end_ip')
                                ->label('End IP Address')
                                ->required()
                                ->maxLength(fn (Get $get) => $get('type') === 'ipv4' ? 15 : 39) // 15 for IPv4, 39 for IPv6
                                ->placeholder('Enter the end IP address'),
                            Forms\Components\TextInput::make('gateway')
                                ->label('Gateway')
                                ->required()
                                ->maxLength(fn (Get $get) => $get('type') === 'ipv4' ? 15 : 39) // 15 for IPv4, 39 for IPv6
                                ->placeholder('Enter the gateway'),
                            Forms\Components\TextInput::make('netmask')
                                ->label('Netmask')
                                ->required()
                                ->maxLength(fn (Get $get) => $get('type') === 'ipv4' ? 15 : 39) // 15 for IPv4, 39 for IPv6
                                ->placeholder('Enter the netmask'),
                        ];
                    })
                    ->action(function (array $data, $record) {
                        // Get start IP and end IP
                        if ($data['type'] === 'ipv4') {
                            // Validate and convert IP addresses
                            $startIp = ip2long($data['start_ip']);
                            $endIp = ip2long($data['end_ip']);

                            if ($startIp === false || $endIp === false || $startIp > $endIp) {
                                throw new \InvalidArgumentException('Invalid IP address range.');
                            }
                            // Generate IP addresses in the range
                            $ipAddresses = [];
                            for ($ip = $startIp; $ip <= $endIp; $ip++) {
                                $ipAddresses[] = long2ip($ip);
                            }
                        } else {
                            $startIp = gmp_import(inet_pton($data['start_ip']));
                            $endIp = gmp_import(inet_pton($data['end_ip']));
                            if ($startIp === false || $endIp === false || gmp_cmp($startIp, $endIp) > 0) {
                                throw new \InvalidArgumentException('Invalid IP address range.');
                            }

                            // Generate IPv6 addresses in the range
                            $ipAddresses = [];
                            for ($ip = $startIp; gmp_cmp($ip, $endIp) <= 0; $ip = gmp_add($ip, 1)) {
                                $ipAddresses[] = inet_ntop(str_pad(gmp_export($ip), 16, "\0", STR_PAD_LEFT));
                            }

                            // Remove duplicate IP addresses
                            $ipAddresses = array_unique($ipAddresses);
                            sort($ipAddresses);
                        }
                        // Create IP addresses in the pool
                        foreach ($ipAddresses as $ip) {
                            $this->getOwnerRecord()->ipAddresses()->create([
                                'type' => $data['type'],
                                'ip' => $ip,
                                'gateway' => $data['gateway'],
                                'netmask' => $data['netmask'],
                                'mac_address' => $data['mac_address'] ?? null,
                            ]);
                        }
                        $this->dispatch('refresh');
                    }),
            ])
            ->actions([
                Tables\Actions\EditAction::make(),
                Tables\Actions\DeleteAction::make()->disabled(fn ($record) => $record->server_id !== null),
            ])
            ->bulkActions([
                Tables\Actions\BulkActionGroup::make([
                    Tables\Actions\DeleteBulkAction::make()->before(function (Tables\Actions\DeleteBulkAction $action) {
                        foreach ($action->getRecords() as $record) {
                            if ($record->server_id !== null) {
                                Notification::make()
                                    ->title('Cannot delete IP Address')
                                    ->body('The IP Address is assigned to a server.')
                                    ->duration(5000)
                                    ->icon('ri-error-warning-line')
                                    ->danger()
                                    ->send();
                                $action->cancel();
                            }
                        }
                    }),
                ]),
            ])->defaultSort('server_id', 'desc');
    }
}