Adding Flat Tax support with fixed amount (#253)

* Possibility to set a fixed amount on tax types settings

* Pint and manage flat taxes on items

* Fix display errors and handle global taxes

* Tests

* Pint with PHP 8.2 cause with PHP 8.3 version it cause workflow error

* Merging percent and fixed amount into one column

* Now display the currency on SelectTaxPopup on fixed taxes

resources/scripts/admin/components/modal-components/ItemModal.vue

@@ -169,7 +169,7 @@ const taxes = computed({
         return {
           ...tax,
           tax_type_id: tax.id,
-          tax_name: tax.name + ' (' + tax.percent + '%)',
+          tax_name: tax.name + ' (' + (tax.calculation_type === 'fixed' ? tax.fixed_amount : tax.percent) + (tax.calculation_type === 'fixed' ? companyStore.selectedCompanyCurrency.symbol : '%') + ')',
         }
       }
     }),
@@ -208,7 +208,17 @@ const v$ = useVuelidate(
 
 const getTaxTypes = computed(() => {
   return taxTypeStore.taxTypes.map((tax) => {
-    return { ...tax, tax_name: tax.name + ' (' + tax.percent + '%)' }
+    const amount = tax.calculation_type === 'fixed' 
+      ? new Intl.NumberFormat(undefined, {
+          style: 'currency',
+          currency: companyStore.selectedCompanyCurrency.code
+        }).format(tax.fixed_amount / 100)
+      : `${tax.percent}%`
+    
+    return { 
+      ...tax, 
+      tax_name: `${tax.name} (${amount})`
+    }
   })
 })
 
@@ -229,8 +239,10 @@ async function submitItemData() {
     taxes: itemStore.currentItem.taxes.map((tax) => {
       return {
         tax_type_id: tax.id,
-        amount: (price.value * tax.percent) / 100,
+        amount: tax.calculation_type === 'fixed' ? tax.fixed_amount : (price.value * tax.percent) / 100,
         percent: tax.percent,
+        fixed_amount: tax.fixed_amount,
+        calculation_type: tax.calculation_type,
         name: tax.name,
         collective_tax: 0,
       }