<?php

namespace FluentFormPro\Payments\PaymentMethods\Mollie\API;

if (!defined('ABSPATH')) {
    exit; // Exit if accessed directly.
}

use FluentForm\Framework\Helpers\ArrayHelper;
use FluentFormPro\Payments\PaymentMethods\Mollie\MollieSettings;
use FluentFormPro\Payments\PaymentMethods\PayPal\PayPalSettings;

class IPN
{
    public function verifyIPN()
    {
        // Check the request method is POST
        if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] != 'POST') {
            return;
        }

        // Set initial post data to empty string
        $post_data = '';

        // Fallback just in case post_max_size is lower than needed
        if (ini_get('allow_url_fopen')) {
            $post_data = file_get_contents('php://input');
        } else {
            // If allow_url_fopen is not enabled, then make sure that post_max_size is large enough
            ini_set('post_max_size', '12M');
        }
        // Start the encoded data collection with notification command
        $encoded_data = 'cmd=_notify-validate';

        // Get current arg separator
        $arg_separator = ini_get('arg_separator.output');

        // Verify there is a post_data
        if ($post_data || strlen($post_data) > 0) {
            // Append the data
            $encoded_data .= $arg_separator . $post_data;
        } else {
            // Check if POST is empty
            if (empty($_POST)) {
                // Nothing to do
                return;
            } else {
                // Loop through each POST
                foreach ($_POST as $key => $value) {
                    // Encode the value and append the data
                    $encoded_data .= $arg_separator . "$key=" . urlencode($value);
                }
            }
        }

        // Convert collected post data to an array
        parse_str($encoded_data, $encoded_data_array);

        foreach ($encoded_data_array as $key => $value) {
            if (false !== strpos($key, 'amp;')) {
                $new_key = str_replace('&amp;', '&', $key);
                $new_key = str_replace('amp;', '&', $new_key);
                unset($encoded_data_array[$key]);
                $encoded_data_array[$new_key] = $value;
            }
        }

        $defaults = $_REQUEST;
        $encoded_data_array = wp_parse_args($encoded_data_array, $defaults);

        $this->handleIpn($encoded_data_array);
        exit(200);
    }

    protected function handleIpn($data)
    {
        $submissionId = intval(ArrayHelper::get($data, 'submission_id'));
        if (!$submissionId || empty($data['id'])) {
            return;
        }
        $submission = wpFluent()->table('fluentform_submissions')->where('id', $submissionId)->first();


        if (!$submission) {
            return;
        }
        $vendorTransaction = $this->makeApiCall('payments/'.$data['id'], [], $submission->form_id, 'GET');

        if(is_wp_error($vendorTransaction)) {
            $logData = [
                'parent_source_id' => $submission->form_id,
                'source_type'      => 'submission_item',
                'source_id'        => $submission->id,
                'component'        => 'Payment',
                'status'           => 'error',
                'title'            => __('Mollie Payment Webhook Error', 'fluentformpro'),
                'description'      => $vendorTransaction->get_error_message()
            ];

            do_action('fluentform/log_data', $logData);
            return false;
        }

        $status = $vendorTransaction['status'];

        do_action_deprecated(
            'fluentform_ipn_mollie_action_' . $status,
            [
                $submission,
                $vendorTransaction,
                $data
            ],
            'fluentform/ipn_mollie_action_' . $status,
            'Use fluentform/ipn_mollie_action_' . $status . ' instead of fluentform_ipn_mollie_action_' . $status
        );

        do_action('fluentform/ipn_mollie_action_' . $status, $submission, $vendorTransaction, $data);

        $refundedAmount = $refundAmount = ArrayHelper::get($vendorTransaction, 'amountRefunded.value');
        if (intval($refundedAmount)) {
            $refundAmount = intval($refundAmount * 100); // in cents
            do_action_deprecated(
                'fluentform_ipn_mollie_action_refunded',
                [
                    $refundAmount,
                    $submission,
                    $vendorTransaction,
                    $data
                ],
                'fluentform/ipn_mollie_action_refunded',
                'Use fluentform/ipn_mollie_action_refunded instead of fluentform_ipn_mollie_action_refunded.'
            );

            do_action('fluentform/ipn_mollie_action_refunded', $refundAmount, $submission, $vendorTransaction, $data);
        }
    }

    public function makeApiCall($path, $args, $formId, $method = 'GET')
    {
        $apiKey = MollieSettings::getApiKey($formId);
        $headers = [
            'Authorization' => 'Bearer ' . $apiKey
        ];
        if($method == 'POST') {
            $response = wp_remote_post('https://api.mollie.com/v2/'.$path, [
                'headers' => $headers,
                'body' => $args
            ]);
        } else {
            $response = wp_remote_get('https://api.mollie.com/v2/'.$path, [
                'headers' => $headers,
                'body' => $args
            ]);
        }

        if(is_wp_error($response)) {
            return $response;
        }

        $body = wp_remote_retrieve_body($response);
        $responseData = json_decode($body, true);
        if(empty($responseData['id'])) {
            $message = ArrayHelper::get($responseData, 'detail');
            if(!$message) {
                $message = ArrayHelper::get($responseData, 'error.message');
            }
            if(!$message) {
                $message = __('Unknown Mollie API request error', 'fluentformpro');
            }

            return new \WP_Error(423, $message, $responseData);
        }

        return $responseData;
    }
}