feat: add account linking and improve sales table

- Add many-to-many relationships between Sale/Expense and Account models
- Create pivot tables for account_sale and account_expense with migrations
- Implement account syncing during sale/expense creation and editing
- Add accounts_list attribute to display comma-separated account names
- Introduce SaleService with DTO for sale creation logic
- Simplify sales table columns to show branch, reference, date, and creator
- Calculate and store aggregated financial fields from transactions
- Make series field read-only instead of disabled in sale form

app/Filament/Resources/ExpenseResource.php

@@ -273,6 +273,7 @@ class ExpenseResource extends Resource
             Tables\Columns\TextColumn::make('branch.client.company'),
             Tables\Columns\TextColumn::make('branch.code'),
             Tables\Columns\TextColumn::make('happened_on'),
+            Tables\Columns\TextColumn::make('accounts_list')->label('Accounts'),
         ];
     }
 

app/Filament/Resources/ExpenseResource/Pages/CreateExpense.php

@@ -58,6 +58,16 @@ class CreateExpense extends CreateRecord
 
     public function getFormDataMutation(array $data): array
     {
+        $transactions = $data['transactions'] ?? [];
+
+        $data['gross_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['gross_amount'] ?? 0));
+        $data['exempt'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['exempt'] ?? 0));
+        $data['zero_rated'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['zero_rated'] ?? 0));
+        $data['vatable_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['vatable_amount'] ?? 0));
+        $data['input_tax'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['input_tax'] ?? 0));
+        $data['payable_withholding_tax'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['payable_withholding_tax'] ?? 0));
+        $data['net_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['net_amount'] ?? 0));
+
         return Arr::except($data, ['client', 'transactions']);
     }
 
@@ -85,6 +95,15 @@ class CreateExpense extends CreateRecord
                 )->thenReturn();
             }
 
+            $accountIds = collect($transactions)
+                ->pluck('account_id')
+                ->filter()
+                ->unique()
+                ->values()
+                ->all();
+
+            $this->getRecord()->accounts()->sync($accountIds);
+
             $this->commitDatabaseTransaction();
         } catch (Exception $exception) {
             $this->rollBackDatabaseTransaction();

app/Filament/Resources/SaleResource.php

@@ -54,7 +54,7 @@ class SaleResource extends Resource
                     ->live(),
                 TextInput::make('current_series')
                     ->label('Series')
-                    ->disabled(),
+                    ->readOnly(),
                 DatePicker::make('happened_on')->label('Date')
                     ->required()
                     ->afterStateUpdated(function ($set, $get) {
@@ -220,17 +220,10 @@ class SaleResource extends Resource
     {
         return $table
             ->columns([
-                TextColumn::make('id')->label('ID')->sortable(),
-                TextColumn::make('client.name')->label('Client')->sortable(),
-                TextColumn::make('branch.name')->label('Branch')->sortable(),
+                TextColumn::make('branch.code')->label('Branch')->sortable(),
+                TextColumn::make('reference_number')->label('Reference Number')->sortable(),
                 TextColumn::make('happened_on')->label('Date')->date()->sortable(),
-                TextColumn::make('gross_amount')->label('Gross Amount')->numeric()->sortable(),
-                TextColumn::make('exempt')->label('Exempt')->numeric()->sortable(),
-                TextColumn::make('vatable_amount')->label('Vatable Amount')->numeric()->sortable(),
-                TextColumn::make('output_tax')->label('Output Tax')->numeric()->sortable(),
-                TextColumn::make('payable_withholding_tax')->label('Payable Withholding Tax')->numeric()->sortable(),
-                TextColumn::make('discount')->label('Discount')->numeric()->sortable(),
-                TextColumn::make('net_amount')->label('Net Amount')->numeric()->sortable(),
+                TextColumn::make('user.name')->label('Created By')->sortable(),
             ])
             ->filters([
                 //

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

@@ -9,6 +9,7 @@ use App\Filament\Resources\SaleResource;
 use App\Models\Branch;
 use App\Models\Client;
 use App\Models\Sale;
+use App\Services\Sales\SaleService;
 use Filament\Resources\Pages\CreateRecord;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Support\Arr;
@@ -65,6 +66,16 @@ class CreateSale extends CreateRecord
 
     public function getFormDataMutation(array $data): array
     {
+        $transactions = $data['transactions'] ?? [];
+
+        $data['gross_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['gross_amount'] ?? 0));
+        $data['exempt'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['exempt'] ?? 0));
+        $data['vatable_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['vatable_amount'] ?? 0));
+        $data['output_tax'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['output_tax'] ?? 0));
+        $data['payable_withholding_tax'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['payable_withholding_tax'] ?? 0));
+        $data['discount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['discount'] ?? 0));
+        $data['net_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['net_amount'] ?? 0));
+
         return Arr::except($data, ['client', 'transactions', 'with_discount']);
     }
 
@@ -72,7 +83,7 @@ class CreateSale extends CreateRecord
     {
         try {
             DB::beginTransaction();
-            $record = Sale::create($data);
+            $record = app(SaleService::class)->create($this->getFormDataMutation($data));
             $branch = $record->branch;
 
             foreach ($transactions as $transaction) {
@@ -90,6 +101,16 @@ class CreateSale extends CreateRecord
                     ]
                 )->thenReturn();
             }
+
+            $accountIds = collect($transactions)
+                ->pluck('account_id')
+                ->filter()
+                ->unique()
+                ->values()
+                ->all();
+
+            $record->accounts()->sync($accountIds);
+
             DB::commit();
         } catch (\Exception $exception) {
             DB::rollBack();

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

@@ -36,6 +36,16 @@ class EditSale extends EditRecord
 
     public function getFormDataMutation(array $data): array
     {
+        $transactions = $data['transactions'] ?? [];
+
+        $data['gross_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['gross_amount'] ?? 0));
+        $data['exempt'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['exempt'] ?? 0));
+        $data['vatable_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['vatable_amount'] ?? 0));
+        $data['output_tax'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['output_tax'] ?? 0));
+        $data['payable_withholding_tax'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['payable_withholding_tax'] ?? 0));
+        $data['discount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['discount'] ?? 0));
+        $data['net_amount'] = collect($transactions)->sum(fn (array $transaction) => (float) ($transaction['net_amount'] ?? 0));
+
         return Arr::except($data, ['client', 'transactions', 'with_discount']);
     }
 
@@ -71,6 +81,16 @@ class EditSale extends EditRecord
                     ]
                 )->thenReturn();
             }
+
+            $accountIds = collect($transactions)
+                ->pluck('account_id')
+                ->filter()
+                ->unique()
+                ->values()
+                ->all();
+
+            $record->accounts()->sync($accountIds);
+
             DB::commit();
         } catch (\Exception $exception) {
             DB::rollBack();