Return the pay in Money() format

app/Support/Money.php

@@ -5,7 +5,9 @@
 
 namespace App\Support;
 
+use Money\Currencies\ISOCurrencies;
 use Money\Currency;
+use Money\Formatter\DecimalMoneyFormatter;
 use Money\Money as MoneyBase;
 
 /**
@@ -15,6 +17,10 @@ use Money\Money as MoneyBase;
 class Money
 {
     public $money;
+    public $subunit_amount;
+
+    public static $iso_currencies;
+    public static $subunit_multiplier;
 
     /**
      * @param $amount
@@ -23,28 +29,60 @@ class Money
      */
     public static function create($amount)
     {
-        return new MoneyBase(
-            $amount,
-            new Currency(config('phpvms.currency'))
-        );
+        return new MoneyBase($amount, static::currency());
+    }
+
+    /**
+     * Convert a whole unit into it's subunit, e,g: dollar to cents
+     * @param $amount
+     * @return float|int
+     * @throws \Money\Exception\UnknownCurrencyException
+     */
+    public static function convertToSubunit($amount)
+    {
+        if (!self::$subunit_multiplier) {
+            self::$iso_currencies = new ISOCurrencies();
+            static::$subunit_multiplier = 10 ** self::$iso_currencies->subunitFor(static::currency());
+        }
+
+        return $amount * static::$subunit_multiplier;
+    }
+
+    /**
+     * @return Currency
+     */
+    public static function currency()
+    {
+        return new Currency(config('phpvms.currency'));
     }
 
     /**
      * Money constructor.
      * @param $amount
+     * @throws \Money\Exception\UnknownCurrencyException
      * @throws \InvalidArgumentException
      */
     public function __construct($amount)
     {
+        $amount = static::convertToSubunit($amount);
         $this->money = static::create($amount);
     }
 
+    /**
+     * @return MoneyBase
+     */
+    public function getInstance()
+    {
+        return $this->money;
+    }
+
     /**
      * @return string
      */
     public function getAmount()
     {
-        return $this->money->getAmount();
+        $moneyFormatter = new DecimalMoneyFormatter(self::$iso_currencies);
+        return $moneyFormatter->format($this->money);
     }
 
     /**
@@ -66,46 +104,72 @@ class Money
         $this->money = $this->money->add($amount);
     }
 
+    /**
+     * @param $percent
+     * @return $this
+     * @throws \InvalidArgumentException
+     */
+    public function addPercent($percent)
+    {
+        if (!is_numeric($percent)) {
+            $percent = (float)$percent;
+        }
+
+        $amount = $this->money->multiply($percent / 100);
+        $this->money = $this->money->add($amount);
+        return $this;
+    }
+
     /**
      * Subtract an amount
      * @param $amount
+     * @return Money
      */
     public function subtract($amount)
     {
         $this->money = $this->money->subtract($amount);
+        return $this;
     }
 
     /**
      * Multiply by an amount
      * @param $amount
+     * @return Money
      */
     public function multiply($amount)
     {
         $this->money = $this->money->multiply($amount);
+        return $this;
     }
 
     /**
      * Divide by an amount
      * @param $amount
+     * @return Money
      */
     public function divide($amount)
     {
-        $this->money = $this->money->divide($amount);
+        $this->money = $this->money->divide($amount, PHP_ROUND_HALF_EVEN);
+        return $this;
     }
 
     /**
      * @param $money
      * @return bool
+     * @throws \Money\Exception\UnknownCurrencyException
      * @throws \InvalidArgumentException
      */
     public function equals($money)
     {
-        if($money instanceof Money) {
+        if($money instanceof self) {
             return $this->money->equals($money->money);
-        } elseif($money instanceof MoneyBase) {
-            return $this->money->equals($money);
-        } else {
-            return $this->money->equals(static::create($money));
         }
+
+        if($money instanceof MoneyBase) {
+            return $this->money->equals($money);
+        }
+
+        $money = static::convertToSubunit($money);
+        return $this->money->equals(static::create($money));
     }
 }