topnotch_website/app/Filament/Admin/Resources/CustomerResource.php

<?php

namespace App\Filament\Admin\Resources;

use App\Enums\IconEnum;
use App\Filament\Admin\Resources\CustomerResource\RelationManagers\ContactsRelationManager;
use App\Filament\Admin\Resources\CustomerResource\RelationManagers\InvoicesRelationManager;
use App\Filament\Admin\Resources\CustomerResource\RelationManagers\PaymentsRelationManager;
use App\Filament\Admin\Resources\CustomerResource\RelationManagers\ShippingEntriesRelationManager;
use App\Models\Customer;
use Filament\Forms\Components\Fieldset;
use Filament\Forms\Components\Section;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Form;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Table;

class CustomerResource extends Resource
{
    protected static ?string $model = Customer::class;

    protected static ?string $navigationIcon = IconEnum::CUSTOMER->value;

    protected static ?string $navigationGroup = 'Management';

    protected static ?int $navigationSort = 1;

    public static function form(Form $form): Form
    {
        return $form
            ->columns(1)
            ->schema([
                Section::make([
                    Fieldset::make('Primary Information')
                        ->columns(1)
                        ->columnSpan(fn (?Customer $record) => $record ? 1 : 3)
                        ->schema([
                            TextInput::make('company_name')
                                ->required(),
                            TextInput::make('phone'),
                        ]),

                    Fieldset::make('Shipping Address')
                        ->columns(1)
                        ->columnSpan(fn (?Customer $record) => $record ? 1 : 3)
                        ->schema([
                            TextInput::make('shipping_address_line_1')
                                ->label('Line 1')
                                ->placeholder('618 East Kent Ave S #108'),
                            TextInput::make('shipping_address_line_2')
                                ->label('Line 2')
                                ->placeholder('Vancouver, BC V5X 0B2, Canada'),
                        ]),

                    Fieldset::make('Billing Address')
                        ->columns(1)
                        ->columnSpan(fn (?Customer $record) => $record ? 1 : 3)
                        ->schema([
                            TextInput::make('billing_address_line_1')
                                ->label('Line 1')
                                ->placeholder('618 East Kent Ave S #108'),
                            TextInput::make('billing_address_line_2')
                                ->label('Line 2')
                                ->placeholder('Vancouver, BC V5X 0B2, Canada'),
                        ]),
                ])
                    ->columns(3)
                    ->columnSpan(fn (?Customer $record) => $record ? 1 : 3),
            ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                TextColumn::make('company_name')
                    ->extraHeaderAttributes(['class' => 'w-full'])
                    ->searchable()
                    ->sortable(),
                TextColumn::make('phone'),
                TextColumn::make('balance')
                    ->getStateUsing(fn (Customer $customer) => $customer->calculateBalance())
                    ->money()
                    ->hidden(! auth()->user()->is_admin ?? false),
            ])
            ->filters([
                //
            ])
            ->actions([
                Tables\Actions\EditAction::make(),
            ])
            ->bulkActions([
                Tables\Actions\BulkActionGroup::make([
                    Tables\Actions\DeleteBulkAction::make(),
                ]),
            ]);
    }

    public static function getRelations(): array
    {
        return [
            InvoicesRelationManager::class,
            PaymentsRelationManager::class,
            ContactsRelationManager::class,
            ShippingEntriesRelationManager::class,
        ];
    }

    public static function getPages(): array
    {
        return [
            'index' => \App\Filament\Admin\Resources\CustomerResource\Pages\ListCustomers::route('/'),
            'edit'  => \App\Filament\Admin\Resources\CustomerResource\Pages\EditCustomer::route('/{record}/edit'),
        ];
    }
}