process-bitcoin-donation

#! /usr/bin/env php
<?php

/**
 * Handle incoming bitcoin donation
 *
 * Usage: process-bitcoin-donation <address>,<btc_value> [<address>,<btc_value> ...]
 *
 * bitcoin-cli -rpcwallet=test listtransactions \* 20 | jq 'map([.address, .amount]|join(","))| join("|")' | tr -d \" | tr '|' '\0' | xargs -0 php process-bitcoin-donation
 */

require_once(__DIR__ . '/../lib/bootstrap.php');

$bitcoin = new Gazelle\Donate\Bitcoin;
$userMan = new Gazelle\Manager\User;

$xbtRate = (new Gazelle\Manager\XBT)->latestRate('EUR');
if (!$xbtRate) {
    echo "No exchange rate for BTC\n";
    exit(1);
}

array_shift($argv);
foreach ($argv as $paymentData) {
    [$address, $value] = explode(',', $paymentData, limit: 2);
    $userId = $bitcoin->findUserIdbyAddress($address);
    if (is_null($userId)) {
        echo "No such address $address\n";
        continue;
    }
    $user = $userMan->find($userId);
    if (is_null($user)) {
        echo "No such user $userId\n";
        continue;
    }
    $value = (float)$value;
    if ($value <= 0) {
        echo "Bad donation value $value for $address\n";
        continue;
    }

    $donor = new Gazelle\User\Donor($user);
    $donor->donate(
        amount:   $value,
        xbtRate:  $xbtRate,
        source:   'BTC donation',
        reason:   "",
        currency: 'XBT'
    );
    $bitcoin->invalidate($userId);
    $fiatValue = $value * $xbtRate;
    echo "added $fiatValue EUR ($value BTC) donation for " . $user->username() . "\n";
}