refactor(client): extract base account generation to command

Move the logic for generating base accounts for a new client from the ClientObserver into a dedicated command class (GenerateBaseAccountCommand). This improves code organization and reusability.

- The command is now used in the ClientObserver::created method.
- The command is also made available as a manual action in the AccountsRelationManager table header, allowing admins to generate base accounts for existing clients that lack them.
- Added necessary imports to the CreateSale page, though the command is not directly used there in this diff, suggesting preparatory work for future integration.

app/Commands/Clients/GenerateBaseAccountCommand.php

@@ -0,0 +1,64 @@
+<?php
+
+namespace App\Commands\Clients;
+
+use App\Commands\Command;
+use Illuminate\Support\Facades\DB;
+
+class GenerateBaseAccountCommand
+{
+    /**
+     * Create a new class instance.
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Execute the command.
+     */
+    public function execute($client): void
+    {
+        DB::transaction(function () use ($client) {
+            $client->accounts()->createMany([
+                [
+                    'account_type_id' => 1,
+                    'account' => 'Cash',
+                    'normal_balance' => 'debit',
+                ],
+                [
+                    'account_type_id' => 1,
+                    'account' => 'Input Tax',
+                    'normal_balance' => 'debit',
+                ],
+                [
+                    'account_type_id' => 1,
+                    'account' => 'Creditable Withholding Tax',
+                    'normal_balance' => 'debit',
+                ],
+                [
+                    'account_type_id' => 2,
+                    'account' => 'Output Tax',
+                    'normal_balance' => 'credit',
+                ],
+                [
+                    'account_type_id' => 2,
+                    'account' => 'Payable Withholding Tax',
+                    'normal_balance' => 'credit',
+                ],
+                [
+                    'account_type_id' => 5,
+                    'account' => 'Vat Exempt Revenue',
+                    'normal_balance' => 'credit',
+                ],
+                [
+                    'account_type_id' => 4,
+                    'account' => 'Sales Discount',
+                    'normal_balance' => 'debit',
+                ],
+            ]);
+        });
+    }
+
+}

app/Filament/Resources/ClientResource/RelationManagers/AccountsRelationManager.php

@@ -2,6 +2,7 @@
 
 namespace App\Filament\Resources\ClientResource\RelationManagers;
 
+use App\Commands\Clients\GenerateBaseAccountCommand;
 use App\Filament\Exports\ClientAccountsExporter;
 use App\Models\Account;
 use Filament\Actions\Exports\Enums\ExportFormat;
@@ -43,6 +44,20 @@ class AccountsRelationManager extends RelationManager
                 //
             ])
             ->headerActions([
+                 Tables\Actions\Action::make('generate-base-accounts')
+                 ->requiresConfirmation()
+                 ->label('Generate Base Accounts')
+                 ->action(function () {
+                    $client = $this->getOwnerRecord();
+                    if (! $client ) {
+                        return;
+                    }
+
+                    if($client->accounts()->count() > 0) {
+                        return;
+                    }
+                    app(GenerateBaseAccountCommand::class)->execute($client);
+                }),
                 Tables\Actions\ExportAction::make('Export Accounts')->exporter(ClientAccountsExporter::class)->formats([ExportFormat::Csv]),
                 Tables\Actions\CreateAction::make()->label('New Account')->icon('heroicon-o-plus')->slideOver(),
             ])

app/Filament/Resources/SaleResource/Pages/CreateSale.php

@@ -5,12 +5,15 @@ namespace App\Filament\Resources\SaleResource\Pages;
 use App\Actions\Sales\CreateSaleAction;
 use App\Actions\Sales\SyncAccountsAction;
 use App\Actions\Transactions\CreateRecordTransactionsAction;
+use App\Commands\Clients\GenerateBaseAccountCommand;
 use App\Filament\Resources\ClientResource;
 use App\Filament\Resources\SaleResource;
 use App\Models\Branch;
 use App\Models\Client;
 use App\Models\Sale;
 use App\Services\Sales\SaleService;
+use Filament\Actions\Action;
+use Filament\Forms\Components\Actions;
 use Filament\Resources\Pages\CreateRecord;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Support\Arr;

app/Observers/ClientObserver.php

@@ -2,6 +2,7 @@
 
 namespace App\Observers;
 
+use App\Commands\Clients\GenerateBaseAccountCommand;
 use App\Models\Client;
 use Illuminate\Support\Facades\DB;
 
@@ -12,45 +13,7 @@ class ClientObserver
      */
     public function created(Client $client): void
     {
-        DB::transaction(function () use ($client) {
+        app(GenerateBaseAccountCommand::class)->execute($client);
-            $client->accounts()->createMany([
-                [
-                    'account_type_id' => 1,
-                    'account' => 'Cash',
-                    'normal_balance' => 'debit',
-                ],
-                [
-                    'account_type_id' => 1,
-                    'account' => 'Input Tax',
-                    'normal_balance' => 'debit',
-                ],
-                [
-                    'account_type_id' => 1,
-                    'account' => 'Creditable Withholding Tax',
-                    'normal_balance' => 'debit',
-                ],
-                [
-                    'account_type_id' => 2,
-                    'account' => 'Output Tax',
-                    'normal_balance' => 'credit',
-                ],
-                [
-                    'account_type_id' => 2,
-                    'account' => 'Payable Withholding Tax',
-                    'normal_balance' => 'credit',
-                ],
-                [
-                    'account_type_id' => 5,
-                    'account' => 'Vat Exempt Revenue',
-                    'normal_balance' => 'credit',
-                ],
-                [
-                    'account_type_id' => 4,
-                    'account' => 'Sales Discount',
-                    'normal_balance' => 'debit',
-                ],
-            ]);
-        });
     }
 
     /**