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<?php |
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/** |
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* This file is part of the Investform module for webcms2. |
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* Copyright (c) @see LICENSE |
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*/ |
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namespace WebCMS\InvestformModule\Common; |
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/** |
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* |
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*/ |
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class FutureValueOfAnnuityCalculator |
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{ |
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private $amount; |
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private $length; |
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private $rates; |
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private $rate; |
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public function __construct($amount, $length) |
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{ |
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$this->amount = $amount; |
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$this->length = $length; |
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$this->rates = array( |
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3 => new Rate(3, 0.07, 1.02), |
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5 => new Rate(5, 0.07, 1.03) |
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); |
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if ($this->length > 3) { |
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$this->rate = $this->rates[5]; |
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} else { |
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$this->rate = $this->rates[3]; |
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} |
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} |
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public function getProfit($length = null) |
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{ |
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if (!$length) { |
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$length = $this->length; |
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} |
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$rate = 1 + $this->rate->getRate(); |
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return $this->amount * pow($rate, $length) - $this->amount; |
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} |
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public function getProfitsByYear() |
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{ |
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$profits = array(); |
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for ($i=1; $i < $this->length; $i++) { |
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$profits[$i] = $this->getProfit($i) - $this->getProfit($i) * 0.15; |
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} |
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return $profits; |
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} |
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public function getTotalProfit() |
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{ |
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return $this->amount + $this->getNetIncome(); |
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} |
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public function getNetIncome() |
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{ |
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return $this->getProfit() - $this->getProfitVat(); |
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} |
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public function getEffectiveEvaluation() |
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{ |
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if ($this->getPurchaseAmount() > 0) { |
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return (pow(($this->getNetIncome() + $this->getAmount()) / $this->getPurchaseAmount(), 1/$this->length) - 1) * 100; |
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} else { |
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return 0; |
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} |
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} |
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public function getTotalAmount() |
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{ |
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return $this->amount + $this->getProfit(); |
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} |
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public function getPurchaseAmount() |
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{ |
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return $this->amount + $this->getCharge(); |
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} |
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public function getProfitVat() |
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{ |
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return $this->getProfit() * 0.15; |
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} |
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public function getCharge() |
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{ |
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return $this->amount * ($this->rate->getCharge() - 1); |
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} |
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/** |
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* Gets the value of amount. |
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* |
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* @return mixed |
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*/ |
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public function getAmount() |
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{ |
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return $this->amount; |
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} |
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/** |
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* Sets the value of amount. |
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* |
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* @param mixed $amount the amount |
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* |
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* @return self |
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*/ |
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public function setAmount($amount) |
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{ |
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$this->amount = $amount; |
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return $this; |
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} |
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/** |
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* Gets the value of length. |
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* |
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* @return mixed |
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*/ |
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public function getLength() |
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{ |
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return $this->length; |
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} |
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/** |
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* Sets the value of length. |
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* |
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* @param mixed $length the length |
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* |
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* @return self |
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*/ |
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public function setLength($length) |
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{ |
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$this->length = $length; |
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return $this; |
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} |
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/** |
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* Gets the value of rates. |
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* |
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* @return mixed |
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*/ |
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public function getRates() |
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{ |
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return $this->rates; |
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} |
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/** |
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* Sets the value of rates. |
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* |
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* @param mixed $rates the rates |
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* |
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* @return self |
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*/ |
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public function setRates($rates) |
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{ |
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$this->rates = $rates; |
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return $this; |
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} |
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/** |
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* Gets the value of rate. |
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* |
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* @return mixed |
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*/ |
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public function getRate() |
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{ |
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return $this->rate; |
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} |
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/** |
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* Sets the value of rate. |
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* |
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* @param mixed $rate the rate |
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* |
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* @return self |
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*/ |
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public function setRate($rate) |
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{ |
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$this->rate = $rate; |
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return $this; |
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} |
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} |
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|
ufik /
Investform-module
