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			144 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			144 lines
		
	
	
		
			4.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Invoice Ninja (https://invoiceninja.com).
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 *
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 * @link https://github.com/invoiceninja/invoiceninja source repository
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 *
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 * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
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 *
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 * @license https://www.elastic.co/licensing/elastic-license
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 */
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namespace App\Helpers\Invoice;
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use App\Models\Invoice;
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use App\Models\RecurringInvoice;
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use Carbon\Exceptions\InvalidFormatException;
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use Exception;
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use Illuminate\Contracts\Container\BindingResolutionException;
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use Illuminate\Support\Carbon;
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class ProRata
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{
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    /**
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     * Returns the amount to refund based on
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     * the time interval and the frequency duration
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     * 
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     * @param float $amount 
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     * @param Carbon $from_date 
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     * @param Carbon $to_date 
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     * @param int $frequency 
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     * @return float 
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     */
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    public function refund(float $amount, Carbon $from_date, Carbon $to_date, int $frequency) :float
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    {
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        $days = $from_date->copy()->diffInDays($to_date);
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        $days_in_frequency = $this->getDaysInFrequency($frequency);
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        return round( (($days/$days_in_frequency) * $amount),2);
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    }
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    /**
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     * Returns the amount to charge based on
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     * the time interval and the frequency duration
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     * 
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     * @param float $amount 
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     * @param Carbon $from_date 
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     * @param Carbon $to_date 
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     * @param int $frequency 
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     * @return float 
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     */
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    public function charge(float $amount, Carbon $from_date, Carbon $to_date, int $frequency) :float
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    {
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        $days = $from_date->copy()->diffInDays($to_date);
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        $days_in_frequency = $this->getDaysInFrequency($frequency);
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nlog($from_date->format('Y-m-d'));
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nlog($days);
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nlog($days_in_frequency);
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nlog($amount);
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        return round( (($days/$days_in_frequency) * $amount),2);
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    }
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    /**
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     * Prepares the line items of an invoice
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     * to be pro rata refunded.
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     * 
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     * @param Invoice $invoice 
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     * @param bool $is_credit 
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     * @return array 
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     * @throws Exception 
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     */
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    public function refundItems(Invoice $invoice, $is_credit = false) :array
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    {
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        if(!$invoice)
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            return [];
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        $recurring_invoice = RecurringInvoice::find($invoice->recurring_id)->first();
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        if(!$recurring_invoice)
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            throw new \Exception("Invoice isn't attached to a recurring invoice");
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        /* depending on whether we are creating an invoice or a credit*/
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        $multiplier = $is_credit ? 1 : -1;
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        $start_date = Carbon::parse($invoice->date);
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        $line_items = [];
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        foreach($invoice->line_items as $item)
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        {
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            if($item->product_key != ctrans('texts.refund'))
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            {
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                $item->quantity = 1;
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                $item->cost = $this->refund($item->cost*$multiplier, $start_date, now(), $recurring_invoice->frequency_id);
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                $item->product_key = ctrans('texts.refund');
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                $item->notes = ctrans('texts.refund') . ": ". $item->notes;
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                $line_items[] = $item;
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            }
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        }
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        return $line_items;
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    }
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    private function getDaysInFrequency($frequency)
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    {
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        switch ($frequency) {
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            case RecurringInvoice::FREQUENCY_DAILY:
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                return 1;
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            case RecurringInvoice::FREQUENCY_WEEKLY:
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                return 7;
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            case RecurringInvoice::FREQUENCY_TWO_WEEKS:
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                return 14;
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            case RecurringInvoice::FREQUENCY_FOUR_WEEKS:
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                return now()->diffInDays(now()->addWeeks(4));
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            case RecurringInvoice::FREQUENCY_MONTHLY:
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                return now()->diffInDays(now()->addMonthNoOverflow());
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            case RecurringInvoice::FREQUENCY_TWO_MONTHS:
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                return now()->diffInDays(now()->addMonthNoOverflow(2));
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            case RecurringInvoice::FREQUENCY_THREE_MONTHS:
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                return now()->diffInDays(now()->addMonthNoOverflow(3));
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            case RecurringInvoice::FREQUENCY_FOUR_MONTHS:
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                return now()->diffInDays(now()->addMonthNoOverflow(4));
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            case RecurringInvoice::FREQUENCY_SIX_MONTHS:
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                return now()->diffInDays(now()->addMonthNoOverflow(6));
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            case RecurringInvoice::FREQUENCY_ANNUALLY:
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                return now()->diffInDays(now()->addYear());
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            case RecurringInvoice::FREQUENCY_TWO_YEARS:
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                return now()->diffInDays(now()->addYears(2));
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            case RecurringInvoice::FREQUENCY_THREE_YEARS:
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                return now()->diffInDays(now()->addYears(3));
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            default:
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                return 0;
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        }
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    }
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} |