Move to Lightning Checkout repository

LICENSE

@@ -1,6 +1,6 @@
-MIT License
+The MIT License (MIT)
 
-Copyright (c) 2023 lightningcheckout
+Copyright (c) 2021 Phaedrus and contributors.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -9,13 +9,13 @@ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
 
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

includes/init.php

@@ -0,0 +1,4 @@
+<?php
+
+require(dirname(__FILE__) . '/utils.php');
+require(dirname(__FILE__) . '/lnbits_api.php');

includes/lnbits_api.php

@@ -0,0 +1,41 @@
+<?php
+namespace LightningCheckoutPlugin;
+
+
+/**
+ * For calling LNBits API
+ */
+class LNBitsAPI {
+
+    protected $url;
+    protected $api_key;
+
+    public function __construct($url, $api_key) {
+        $this->url = $url;
+        $this->api_key = $api_key;
+    }
+
+    public function createInvoice($amount, $memo) {
+        $c = new CurlWrapper();
+        $data = array(
+            "out" => false,
+            "amount" => $amount,
+            "memo" => $memo,
+            "webhook" => "https://portal.lightningcheckout.eu/webhook/paymentupdate"
+        );
+        $headers = array(
+            'X-Api-Key' => $this->api_key,
+            'Content-Type' => 'application/json'
+        );
+        return $c->post($this->url.'/api/v1/payments', array(), $data, $headers);
+    }
+
+    public function checkInvoicePaid($payment_hash) {
+        $c = new CurlWrapper();
+        $headers = array(
+            'X-Api-Key' => $this->api_key,
+            'Content-Type' => 'application/json'
+        );
+        return $c->get($this->url.'/api/v1/payments/'.$payment_hash, array(), $headers);
+    }
+}

includes/utils.php

@@ -0,0 +1,58 @@
+<?php
+namespace LightningCheckoutPlugin;
+
+
+class Utils {
+    public static function convert_to_satoshis($amount, $currency) {
+        if(strtolower($currency) !== 'btc') {
+            error_log($amount . " " . $currency);
+            $c    = new CurlWrapper();
+            $resp = $c->get('https://blockchain.info/tobtc', array(
+                'currency' => $currency,
+                'value'    => $amount
+            ), array());
+
+            if ($resp['status'] != 200) {
+                throw new \Exception('Blockchain.info request for currency conversion failed. Got status ' . $resp['status']);
+            }
+
+            return (int) round($resp['response'] * 100000000);
+        }
+        else {
+            return intval($amount * 100000000);
+        }
+    }
+}
+
+class CurlWrapper {
+
+    private function request($method, $url, $params, $headers, $data) {
+        $url = add_query_arg($params, $url);
+        $r = wp_remote_request($url, array(
+            'method' => $method,
+            'headers' => $headers,
+            'body' => $data ? json_encode($data) : ''
+        ));
+
+        if (is_wp_error($r)) {
+            error_log('WP_Error: '.$r->get_error_message());
+            return array(
+                'status' => 500,
+                'response' => $r->get_error_message()
+            );
+        }
+
+        return array(
+            'status' => $r['response']['code'],
+            'response' => json_decode($r['body'], true)
+        );
+    }
+
+    public function get($url, $params, $headers) {
+        return $this->request('GET', $url, $params, $headers, null);
+    }
+
+    public function post($url, $params, $data, $headers) {
+        return $this->request('POST', $url, $params, $headers, $data);
+    }
+}