From cea6d437ec04705fa5935ceb9c81d9325f28cc14 Mon Sep 17 00:00:00 2001
From: David Bomba <turbo124@gmail.com>
Date: Sat, 16 Nov 2024 15:37:24 +1100
Subject: [PATCH] GB rules

---
 app/DataMapper/Tax/GB/Rule.php | 243 +++++++++++++++++++++++++++++++++
 1 file changed, 243 insertions(+)
 create mode 100644 app/DataMapper/Tax/GB/Rule.php

diff --git a/app/DataMapper/Tax/GB/Rule.php b/app/DataMapper/Tax/GB/Rule.php
new file mode 100644
index 0000000000..cf5b4a1569
--- /dev/null
+++ b/app/DataMapper/Tax/GB/Rule.php
@@ -0,0 +1,243 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2024. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\DataMapper\Tax\GB;
+
+use App\DataMapper\Tax\BaseRule;
+use App\DataMapper\Tax\RuleInterface;
+use App\Models\Product;
+
+class Rule extends BaseRule implements RuleInterface
+{
+    /** @var string $seller_region */
+    public string $seller_region = 'UK';
+
+    /** @var bool $consumer_tax_exempt */
+    public bool $consumer_tax_exempt = false;
+
+    /** @var bool $business_tax_exempt */
+    public bool $business_tax_exempt = false;
+
+    /** @var bool $eu_business_tax_exempt */
+    public bool $eu_business_tax_exempt = true;
+
+    /** @var bool $foreign_business_tax_exempt */
+    public bool $foreign_business_tax_exempt = false;
+
+    /** @var bool $foreign_consumer_tax_exempt */
+    public bool $foreign_consumer_tax_exempt = false;
+
+    /** @var float $tax_rate */
+    public float $tax_rate = 0;
+
+    /** @var float $reduced_tax_rate */
+    public float $reduced_tax_rate = 0;
+
+    public string $tax_name1 = 'VAT';
+
+    private string $tax_name;
+    /**
+     * Initializes the rules and builds any required data.
+     *
+     * @return self
+     */
+    public function init(): self
+    {
+        $this->calculateRates();
+
+        return $this;
+    }
+
+    /**
+     * Sets the correct tax rate based on the product type.
+     *
+     * @param  mixed $item
+     * @return self
+     */
+    public function taxByType($item): self
+    {
+
+        if ($this->client->is_tax_exempt || !property_exists($item, 'tax_id')) {
+            return $this->taxExempt($item);
+        }
+
+        match(intval($item->tax_id)) {
+            Product::PRODUCT_TYPE_EXEMPT => $this->taxExempt($item),
+            Product::PRODUCT_TYPE_DIGITAL => $this->taxDigital($item),
+            Product::PRODUCT_TYPE_SERVICE => $this->taxService($item),
+            Product::PRODUCT_TYPE_SHIPPING => $this->taxShipping($item),
+            Product::PRODUCT_TYPE_PHYSICAL => $this->taxPhysical($item),
+            Product::PRODUCT_TYPE_REDUCED_TAX => $this->taxReduced($item),
+            Product::PRODUCT_TYPE_OVERRIDE_TAX => $this->override($item),
+            Product::PRODUCT_TYPE_ZERO_RATED => $this->zeroRated($item),
+            Product::PRODUCT_TYPE_REVERSE_TAX => $this->reverseTax($item),
+            default => $this->default($item),
+        };
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for a reduced tax product
+     *
+     * @return self
+     */
+    public function reverseTax($item): self
+    {
+        $this->tax_rate1 = 20;
+        $this->tax_name1 = 'VAT';
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for a reduced tax product
+     *
+     * @return self
+     */
+    public function taxReduced($item): self
+    {
+        $this->tax_rate1 = $this->reduced_tax_rate;
+        $this->tax_name1 = 'VAT';
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for a zero rated tax product
+     *
+     * @return self
+     */
+    public function zeroRated($item): self
+    {
+        $this->tax_rate1 = 0;
+        $this->tax_name1 = 'VAT';
+
+        return $this;
+    }
+
+
+    /**
+     * Calculates the tax rate for a tax exempt product
+     *
+     * @return self
+     */
+    public function taxExempt($item): self
+    {
+        $this->tax_name1 = '';
+        $this->tax_rate1 = 0;
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for a digital product
+     *
+     * @return self
+     */
+    public function taxDigital($item): self
+    {
+
+        $this->tax_rate1 = $this->tax_rate;
+        $this->tax_name1 = 'VAT';
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for a service product
+     *
+     * @return self
+     */
+    public function taxService($item): self
+    {
+
+        $this->tax_rate1 = $this->tax_rate;
+        $this->tax_name1 = 'VAT';
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for a shipping product
+     *
+     * @return self
+     */
+    public function taxShipping($item): self
+    {
+
+        $this->tax_rate1 = $this->tax_rate;
+        $this->tax_name1 = 'VAT';
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for a physical product
+     *
+     * @return self
+     */
+    public function taxPhysical($item): self
+    {
+
+        $this->tax_rate1 = $this->tax_rate;
+        $this->tax_name1 = 'VAT';
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for a default product
+     *
+     * @return self
+     */
+    public function default($item): self
+    {
+
+        $this->tax_name1 = '';
+        $this->tax_rate1 = 0;
+
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rate for an override product
+     *
+     * @return self
+     */
+    public function override($item): self
+    {
+        return $this;
+    }
+
+    /**
+     * Calculates the tax rates based on the client's location.
+     *
+     * @return self
+     */
+    public function calculateRates(): self
+    {
+        if ($this->client->is_tax_exempt) {
+
+            $this->tax_rate = 0;
+            $this->reduced_tax_rate = 0;
+
+            return $this;
+        }
+
+        // $this->tax_rate = $this->client->company->tax_data->regions->UK->subregions->{$this->client->company->country()->iso_3166_2}->tax_rate ?? 0;
+        // $this->reduced_tax_rate = $this->client->company->tax_data->regions->UK->subregions->{$this->client->company->country()->iso_3166_2}->tax_rate ?? 0;
+
+        return $this;
+
+    }
+
+}