- client and invoice scaffolding

app/Http/custom-helpers.php

@@ -0,0 +1,73 @@
+<?php
+
+use Laravel\Cashier\Cashier;
+
+/**
+ * @param $invoice
+ * @param false $format
+ * @return float|int|mixed|string
+ */
+function invoice_total_discount($invoice, $format = false)
+{
+    // Percent discount
+    if ($invoice['discount_type'] === 'percent') {
+
+        $discount = invoice_total_net($invoice) * ($invoice['discount_rate'] / 100);
+
+        if ($format) {
+            return Cashier::formatAmount($discount * 100, $invoice['currency'], 'cs');
+        }
+
+        return $discount;
+    }
+
+    // Value discount
+    if ($invoice['discount_type'] === 'value') {
+
+        if ($format) {
+            return Cashier::formatAmount($invoice['discount_rate'] * 100, $invoice['currency'], 'cs');
+        }
+
+        return $invoice['discount_rate'];
+    }
+}
+
+/**
+ * @param $invoice
+ * @param false $format
+ * @return float|int|string
+ */
+function invoice_total_net($invoice, $format = false)
+{
+    $total = 0;
+
+    foreach ($invoice['items'] as $item) {
+        $total += $item['amount'] * $item['price'];
+    }
+
+    if ($format) {
+        return Cashier::formatAmount(($total * 100), $invoice['currency'], 'cs');
+    }
+
+    return $total;
+}
+
+/**
+ * @param $invoice
+ * @param false $format
+ * @return float|int|string
+ */
+function invoice_total_tax($invoice, $format = false)
+{
+    $total = 0;
+
+    foreach ($invoice['items'] as $item) {
+        $total += ($item['amount'] * $item['price']) * ($item['tax_rate'] / 100);
+    }
+
+    if ($format) {
+        return Cashier::formatAmount(($total * 100), $invoice['currency'], 'cs');
+    }
+
+    return $total;
+}