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<?php |
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declare(strict_types=1); |
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namespace byrokrat\billing; |
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use byrokrat\amount\Amount; |
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/** |
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* Create complex invoices |
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*/ |
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class InvoiceBuilder |
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{ |
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use AttributesTrait; |
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/** |
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* @var string Invoice serial number |
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*/ |
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private $serial; |
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/** |
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* @var AgentInterface Registered seller |
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*/ |
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private $seller; |
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/** |
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* @var AgentInterface Registered buyer |
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*/ |
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private $buyer; |
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/** |
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* @var string Payment reference number |
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*/ |
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private $ocr; |
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/** |
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* @var OcrTools Tools for validating and creating ocr numbers |
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*/ |
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private $ocrTools; |
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/** |
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* @var ItemBasket Container of charged items |
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*/ |
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private $itemBasket; |
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/** |
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* @var \DateTimeImmutable Invoice creation date |
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*/ |
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private $billDate; |
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/** |
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* @var int Number of days before invoice expires |
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*/ |
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private $expiresAfter; |
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/** |
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* @var Amount Prepaid amound to deduct |
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*/ |
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private $deduction; |
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/** |
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* Reset values at construct |
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*/ |
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public function __construct(OcrTools $ocrTools = null) |
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{ |
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$this->ocrTools = $ocrTools ?: new OcrTools; |
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$this->reset(); |
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} |
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/** |
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* Reset builder values |
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*/ |
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public function reset(): self |
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{ |
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$this->serial = null; |
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$this->seller = null; |
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$this->buyer = null; |
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$this->ocr = ''; |
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$this->itemBasket = new ItemBasket; |
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$this->billDate = null; |
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$this->expiresAfter = 30; |
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$this->deduction = null; |
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$this->clearAttributes(); |
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return $this; |
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} |
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/** |
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* Build invoice |
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*/ |
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public function buildInvoice(): Invoice |
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{ |
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$invoice = new Invoice( |
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$this->getSerial(), |
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$this->getSeller(), |
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$this->getBuyer(), |
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$this->ocr, |
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$this->itemBasket, |
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$this->billDate ?: new \DateTimeImmutable, |
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$this->expiresAfter, |
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$this->deduction |
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); |
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foreach ($this->getAttributes() as $key => $value) { |
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$invoice->setAttribute($key, $value); |
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} |
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return $invoice; |
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} |
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/** |
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* Set invoice serial number |
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*/ |
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public function setSerial(string $serial): self |
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{ |
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$this->serial = $serial; |
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return $this; |
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} |
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/** |
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* Get invoice serial number |
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* |
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* @throws Exception If serial is not set |
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*/ |
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public function getSerial(): string |
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{ |
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if (isset($this->serial)) { |
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return $this->serial; |
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} |
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throw new Exception("Unable to create invoice: serial not set"); |
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} |
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/** |
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* Set seller |
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*/ |
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public function setSeller(AgentInterface $seller): self |
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{ |
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$this->seller = $seller; |
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return $this; |
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} |
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/** |
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* Get seller |
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* |
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* @throws Exception If seller is not set |
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*/ |
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public function getSeller(): AgentInterface |
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{ |
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if (isset($this->seller)) { |
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return $this->seller; |
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} |
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throw new Exception("Unable to create Invoice: seller not set"); |
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} |
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/** |
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* Set buyer |
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*/ |
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public function setBuyer(AgentInterface $buyer): self |
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{ |
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$this->buyer = $buyer; |
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return $this; |
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} |
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/** |
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* Get buyer |
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* |
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* @throws Exception If buyer is not set |
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*/ |
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public function getBuyer(): AgentInterface |
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{ |
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if (isset($this->buyer)) { |
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return $this->buyer; |
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} |
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throw new Exception("Unable to create Invoice: buyer not set"); |
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} |
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/** |
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* Set invoice reference number |
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*/ |
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public function setOcr(string $ocr): self |
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{ |
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$this->ocrTools->validate($ocr); |
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$this->ocr = $ocr; |
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return $this; |
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} |
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/** |
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* Generate invoice reference number from serial number |
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*/ |
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public function generateOcr(): self |
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{ |
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$this->ocr = $this->ocrTools->create($this->getSerial()); |
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return $this; |
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} |
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/** |
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* Add billable to invoice |
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*/ |
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public function addItem(Billable $billable): self |
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{ |
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$this->itemBasket->addItem(new ItemEnvelope($billable)); |
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return $this; |
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} |
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/** |
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* Set date of invoice creation |
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*/ |
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public function setBillDate(\DateTimeImmutable $date): self |
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{ |
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$this->billDate = $date; |
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return $this; |
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} |
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/** |
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* Set number of days before invoice expires |
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*/ |
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public function setExpiresAfter(int $nrOfDays): self |
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{ |
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$this->expiresAfter = $nrOfDays; |
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return $this; |
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} |
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/** |
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* Set deduction (amount prepaid) |
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*/ |
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public function setDeduction(Amount $deduction): self |
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{ |
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$this->deduction = $deduction; |
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return $this; |
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} |
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} |
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