JezK

Edit File: Subscription.php

<?php

defined('BASEPATH') or exit('No direct script access allowed');

class Subscription extends ClientsController
{
    public function index($hash)
    {
        $this->load->model('subscriptions_model');
        $this->load->library('stripe_subscriptions');
        $subscription = $this->subscriptions_model->get_by_hash($hash);

if (!$subscription) {
            show_404();
        }

$language = load_client_language($subscription->clientid);
        $data['locale'] = get_locale_key($language);

$data['stripe_customer'] = false;
        if (!empty($subscription->stripe_customer_id)) {
            $data['stripe_customer'] = $this->stripe_subscriptions->get_customer_with_default_source($subscription->stripe_customer_id);
        }

$plan = $this->stripe_subscriptions->get_plan($subscription->stripe_plan_id);

$upcomingInvoice           = new stdClass();
        $upcomingInvoice->total    = $plan->amount * $subscription->quantity;
        $upcomingInvoice->subtotal = $upcomingInvoice->total;

if (!empty($subscription->tax_percent)) {
            $totalTax = $upcomingInvoice->total * ($subscription->tax_percent / 100);
            $upcomingInvoice->total += $totalTax;
        }

$data['total']                = $upcomingInvoice->total;
        $upcomingInvoice->tax_percent = $subscription->tax_percent;
        $product                      = $this->stripe_subscriptions->get_product($plan->product);

$upcomingInvoice->lines       = new stdClass();
        $upcomingInvoice->lines->data = [];

$upcomingInvoice->lines->data[] = [
            'description' => $product->name . ' (' . app_format_money(strcasecmp($plan->currency, 'JPY') == 0 ? $plan->amount : $plan->amount / 100, strtoupper($subscription->currency_name)) . ' / ' . $plan->interval . ')',
            'amount'      => $plan->amount * $subscription->quantity,
            'quantity'    => $subscription->quantity,
        ];

$this->disableNavigation();
        $this->disableSubMenu();
        $data['child_invoices'] = $this->subscriptions_model->get_child_invoices($subscription->id);
        $data['invoice']        = subscription_invoice_preview_data($subscription, $upcomingInvoice);
        $this->app_scripts->theme('sticky-js','assets/plugins/sticky/sticky.js');
        $data['plan']           = $plan;
        $data['subscription']   = $subscription;
        $data['title']          = $subscription->name;
        $data['hash']           = $hash;
        $data['bodyclass']      = 'subscriptionhtml';
        $this->data($data);
        $this->view('subscriptionhtml');
        $this->layout();
    }

public function subscribe($subscription_hash)
    {
        $this->load->model('subscriptions_model');
        $this->load->library('stripe_subscriptions');

$subscription = $this->subscriptions_model->get_by_hash($subscription_hash);

if (!$subscription) {
            show_404();
        }

$email = $this->input->post('stripeEmail');

$stripe_customer_id = $subscription->stripe_customer_id;
        $source             = $this->input->post('stripeToken');
        if (empty($stripe_customer_id)) {
            try {
                $customer = $this->stripe_subscriptions->create_customer([
                    'email'       => $email,
                    'source'      => $source,
                    'description' => $subscription->company,
                ]);

$stripe_customer_id = $customer->id;

$this->db->where('userid', $subscription->clientid);
                $this->db->update(db_prefix().'clients', [
                    'stripe_id' => $stripe_customer_id,
                ]);
            } catch (Exception $e) {
                echo $e->getMessage();
            }
        } elseif (!empty($stripe_customer_id)) {
            // Perhaps had source and it's deleted
            $customer = $this->stripe_subscriptions->get_customer($stripe_customer_id);
            if (empty($customer->default_source)) {
                $customer->source = $source;
                $customer->save();
            }
        }

try {
            $params = [];

$params['tax_percent'] = $subscription->tax_percent;

$params['metadata'] = [
                'pcrm-subscription-hash' => $subscription->hash,
            ];

$params['items'] = [
                [
                    'plan' => $subscription->stripe_plan_id,
                ],
            ];

$future                 = false;
            $updateFirstBillingDate = false;
            if (!empty($subscription->date)) {
                $anchor = strtotime($subscription->date);

if ($subscription->date <= date('Y-m-d')) {
                    $anchor                 = false;
                    $updateFirstBillingDate = date('Y-m-d');
                }

if ($anchor) {
                    $params['billing_cycle_anchor'] = $anchor;
                    $params['prorate']              = false;
                    $future                         = true;
                }
            }

if ($subscription->quantity > 1) {
                $params['items'][0]['quantity'] = $subscription->quantity;
            }

$stripeSubscription = $this->stripe_subscriptions->subscribe($stripe_customer_id, $params);

$update = [
                'stripe_subscription_id' => $stripeSubscription->id,
                'date_subscribed'        => date('Y-m-d H:i:s'),
            ];

if ($future) {
                $update['status'] = 'future';
                if ($anchor) {
                    $update['next_billing_cycle'] = $anchor;
                }
            }

if ($updateFirstBillingDate) {
                $update['date'] = $updateFirstBillingDate;
            }

$this->subscriptions_model->update($subscription->id, $update);

send_email_customer_subscribed_to_subscription_to_staff($subscription);

hooks()->do_action('customer_subscribed_to_subscription', $subscription);

set_alert('success', _l('customer_successfully_subscribed_to_subscription', $subscription->name));
        } catch (Exception $e) {
            set_alert('warning', $e->getMessage());
        }

redirect($_SERVER['HTTP_REFERER']);
    }
}