<?php

// File generated from our OpenAPI spec

namespace Stripe;

/**
 * Issue a credit note to adjust an invoice's amount after the invoice is finalized.
 *
 * Related guide: <a href="https://stripe.com/docs/billing/invoices/credit-notes">Credit notes</a>
 *
 * @property string $id Unique identifier for the object.
 * @property string $object String representing the object's type. Objects of the same type share the same value.
 * @property int $amount The integer amount in cents (or local equivalent) representing the total amount of the credit note, including tax.
 * @property int $amount_shipping This is the sum of all the shipping amounts.
 * @property int $created Time at which the object was created. Measured in seconds since the Unix epoch.
 * @property string $currency Three-letter <a href="https://www.iso.org/iso-4217-currency-codes.html">ISO currency code</a>, in lowercase. Must be a <a href="https://stripe.com/docs/currencies">supported currency</a>.
 * @property Customer|string $customer ID of the customer.
 * @property null|CustomerBalanceTransaction|string $customer_balance_transaction Customer balance transaction related to this credit note.
 * @property int $discount_amount The integer amount in cents (or local equivalent) representing the total amount of discount that was credited.
 * @property ((object{amount: int, discount: Discount|string}&StripeObject))[] $discount_amounts The aggregate amounts calculated per discount for all line items.
 * @property null|int $effective_at The date when this credit note is in effect. Same as <code>created</code> unless overwritten. When defined, this value replaces the system-generated 'Date of issue' printed on the credit note PDF.
 * @property Invoice|string $invoice ID of the invoice.
 * @property Collection<CreditNoteLineItem> $lines Line items that make up the credit note
 * @property bool $livemode Has the value <code>true</code> if the object exists in live mode or the value <code>false</code> if the object exists in test mode.
 * @property null|string $memo Customer-facing text that appears on the credit note PDF.
 * @property null|StripeObject $metadata Set of <a href="https://stripe.com/docs/api/metadata">key-value pairs</a> that you can attach to an object. This can be useful for storing additional information about the object in a structured format.
 * @property string $number A unique number that identifies this particular credit note and appears on the PDF of the credit note and its associated invoice.
 * @property null|int $out_of_band_amount Amount that was credited outside of Stripe.
 * @property string $pdf The link to download the PDF of the credit note.
 * @property int $post_payment_amount The amount of the credit note that was refunded to the customer, credited to the customer's balance, credited outside of Stripe, or any combination thereof.
 * @property int $pre_payment_amount The amount of the credit note by which the invoice's <code>amount_remaining</code> and <code>amount_due</code> were reduced.
 * @property ((object{amount: int, credit_balance_transaction?: Billing\CreditBalanceTransaction|string, discount?: Discount|string, type: string}&StripeObject))[] $pretax_credit_amounts The pretax credit amounts (ex: discount, credit grants, etc) for all line items.
 * @property null|string $reason Reason for issuing this credit note, one of <code>duplicate</code>, <code>fraudulent</code>, <code>order_change</code>, or <code>product_unsatisfactory</code>
 * @property ((object{amount_refunded: int, refund: Refund|string}&StripeObject))[] $refunds Refunds related to this credit note.
 * @property null|(object{amount_subtotal: int, amount_tax: int, amount_total: int, shipping_rate: null|ShippingRate|string, taxes?: ((object{amount: int, rate: TaxRate, taxability_reason: null|string, taxable_amount: null|int}&StripeObject))[]}&StripeObject) $shipping_cost The details of the cost of shipping, including the ShippingRate applied to the invoice.
 * @property string $status Status of this credit note, one of <code>issued</code> or <code>void</code>. Learn more about <a href="https://stripe.com/docs/billing/invoices/credit-notes#voiding">voiding credit notes</a>.
 * @property int $subtotal The integer amount in cents (or local equivalent) representing the amount of the credit note, excluding exclusive tax and invoice level discounts.
 * @property null|int $subtotal_excluding_tax The integer amount in cents (or local equivalent) representing the amount of the credit note, excluding all tax and invoice level discounts.
 * @property int $total The integer amount in cents (or local equivalent) representing the total amount of the credit note, including tax and all discount.
 * @property null|int $total_excluding_tax The integer amount in cents (or local equivalent) representing the total amount of the credit note, excluding tax, but including discounts.
 * @property null|((object{amount: int, tax_behavior: string, tax_rate_details: null|(object{tax_rate: string}&StripeObject), taxability_reason: string, taxable_amount: null|int, type: string}&StripeObject))[] $total_taxes The aggregate tax information for all line items.
 * @property string $type Type of this credit note, one of <code>pre_payment</code> or <code>post_payment</code>. A <code>pre_payment</code> credit note means it was issued when the invoice was open. A <code>post_payment</code> credit note means it was issued when the invoice was paid.
 * @property null|int $voided_at The time that the credit note was voided.
 */
class CreditNote extends ApiResource
{
    const OBJECT_NAME = 'credit_note';

    use ApiOperations\NestedResource;
    use ApiOperations\Update;

    const REASON_DUPLICATE = 'duplicate';
    const REASON_FRAUDULENT = 'fraudulent';
    const REASON_ORDER_CHANGE = 'order_change';
    const REASON_PRODUCT_UNSATISFACTORY = 'product_unsatisfactory';

    const STATUS_ISSUED = 'issued';
    const STATUS_VOID = 'void';

    const TYPE_MIXED = 'mixed';
    const TYPE_POST_PAYMENT = 'post_payment';
    const TYPE_PRE_PAYMENT = 'pre_payment';

    /**
     * Issue a credit note to adjust the amount of a finalized invoice. A credit note
     * will first reduce the invoice’s <code>amount_remaining</code> (and
     * <code>amount_due</code>), but not below zero. This amount is indicated by the
     * credit note’s <code>pre_payment_amount</code>. The excess amount is indicated by
     * <code>post_payment_amount</code>, and it can result in any combination of the
     * following:
     *
     * <ul> <li>Refunds: create a new refund (using <code>refund_amount</code>) or link
     * existing refunds (using <code>refunds</code>).</li> <li>Customer balance credit:
     * credit the customer’s balance (using <code>credit_amount</code>) which will be
     * automatically applied to their next invoice when it’s finalized.</li>
     * <li>Outside of Stripe credit: record the amount that is or will be credited
     * outside of Stripe (using <code>out_of_band_amount</code>).</li> </ul>
     *
     * The sum of refunds, customer balance credits, and outside of Stripe credits must
     * equal the <code>post_payment_amount</code>.
     *
     * You may issue multiple credit notes for an invoice. Each credit note may
     * increment the invoice’s <code>pre_payment_credit_notes_amount</code>,
     * <code>post_payment_credit_notes_amount</code>, or both, depending on the
     * invoice’s <code>amount_remaining</code> at the time of credit note creation.
     *
     * @param null|array{amount?: int, credit_amount?: int, effective_at?: int, email_type?: string, expand?: string[], invoice: string, lines?: (array{amount?: int, description?: string, invoice_line_item?: string, quantity?: int, tax_amounts?: null|array{amount: int, tax_rate: string, taxable_amount: int}[], tax_rates?: null|string[], type: string, unit_amount?: int, unit_amount_decimal?: string})[], memo?: string, metadata?: array<string, string>, out_of_band_amount?: int, reason?: string, refund_amount?: int, refunds?: array{amount_refunded?: int, refund?: string}[], shipping_cost?: array{shipping_rate?: string}} $params
     * @param null|array|string $options
     *
     * @return CreditNote the created resource
     *
     * @throws Exception\ApiErrorException if the request fails
     */
    public static function create($params = null, $options = null)
    {
        self::_validateParams($params);
        $url = static::classUrl();

        list($response, $opts) = static::_staticRequest('post', $url, $params, $options);
        $obj = Util\Util::convertToStripeObject($response->json, $opts);
        $obj->setLastResponse($response);

        return $obj;
    }

    /**
     * Returns a list of credit notes.
     *
     * @param null|array{created?: array|int, customer?: string, ending_before?: string, expand?: string[], invoice?: string, limit?: int, starting_after?: string} $params
     * @param null|array|string $opts
     *
     * @return Collection<CreditNote> of ApiResources
     *
     * @throws Exception\ApiErrorException if the request fails
     */
    public static function all($params = null, $opts = null)
    {
        $url = static::classUrl();

        return static::_requestPage($url, Collection::class, $params, $opts);
    }

    /**
     * Retrieves the credit note object with the given identifier.
     *
     * @param array|string $id the ID of the API resource to retrieve, or an options array containing an `id` key
     * @param null|array|string $opts
     *
     * @return CreditNote
     *
     * @throws Exception\ApiErrorException if the request fails
     */
    public static function retrieve($id, $opts = null)
    {
        $opts = Util\RequestOptions::parse($opts);
        $instance = new static($id, $opts);
        $instance->refresh();

        return $instance;
    }

    /**
     * Updates an existing credit note.
     *
     * @param string $id the ID of the resource to update
     * @param null|array{expand?: string[], memo?: string, metadata?: array<string, string>} $params
     * @param null|array|string $opts
     *
     * @return CreditNote the updated resource
     *
     * @throws Exception\ApiErrorException if the request fails
     */
    public static function update($id, $params = null, $opts = null)
    {
        self::_validateParams($params);
        $url = static::resourceUrl($id);

        list($response, $opts) = static::_staticRequest('post', $url, $params, $opts);
        $obj = Util\Util::convertToStripeObject($response->json, $opts);
        $obj->setLastResponse($response);

        return $obj;
    }

    /**
     * @param null|array $params
     * @param null|array|string $opts
     *
     * @return CreditNote the previewed credit note
     *
     * @throws Exception\ApiErrorException if the request fails
     */
    public static function preview($params = null, $opts = null)
    {
        $url = static::classUrl() . '/preview';
        list($response, $opts) = static::_staticRequest('get', $url, $params, $opts);
        $obj = Util\Util::convertToStripeObject($response->json, $opts);
        $obj->setLastResponse($response);

        return $obj;
    }

    /**
     * @param null|array $params
     * @param null|array|string $opts
     *
     * @return Collection<CreditNoteLineItem> list of credit note line items
     *
     * @throws Exception\ApiErrorException if the request fails
     */
    public static function previewLines($params = null, $opts = null)
    {
        $url = static::classUrl() . '/preview/lines';
        list($response, $opts) = static::_staticRequest('get', $url, $params, $opts);
        $obj = Util\Util::convertToStripeObject($response->json, $opts);
        $obj->setLastResponse($response);

        return $obj;
    }

    /**
     * @param null|array $params
     * @param null|array|string $opts
     *
     * @return CreditNote the voided credit note
     *
     * @throws Exception\ApiErrorException if the request fails
     */
    public function voidCreditNote($params = null, $opts = null)
    {
        $url = $this->instanceUrl() . '/void';
        list($response, $opts) = $this->_request('post', $url, $params, $opts);
        $this->refreshFrom($response, $opts);

        return $this;
    }

    const PATH_LINES = '/lines';

    /**
     * @param string $id the ID of the credit note on which to retrieve the credit note line items
     * @param null|array $params
     * @param null|array|string $opts
     *
     * @return Collection<CreditNoteLineItem> the list of credit note line items
     *
     * @throws Exception\ApiErrorException if the request fails
     */
    public static function allLines($id, $params = null, $opts = null)
    {
        return self::_allNestedResources($id, static::PATH_LINES, $params, $opts);
    }
}