refactor: replace custom CRM with Monica fork

app/Traits/Subscription.php

@@ -0,0 +1,146 @@
+<?php
+
+namespace App\Traits;
+
+use Laravel\Cashier\Billable;
+use App\Helpers\InstanceHelper;
+
+trait Subscription
+{
+    use Billable, StripeCall;
+
+    /**
+     * Process the upgrade payment.
+     *
+     * @param  string  $payment_method
+     * @param  string  $planName
+     * @return bool|string
+     */
+    public function subscribe(string $payment_method, string $planName)
+    {
+        $plan = InstanceHelper::getPlanInformationFromConfig($planName);
+        if ($plan === null) {
+            abort(404);
+        }
+
+        return $this->stripeCall(function () use ($payment_method, $plan) {
+            $this->newSubscription($plan['name'], $plan['id'])
+                        ->create($payment_method, [
+                            'email' => auth()->user()->email,
+                        ]);
+
+            return true;
+        });
+    }
+
+    /**
+     * Update an existing subscription.
+     *
+     * @param  string  $planName
+     * @param  \Laravel\Cashier\Subscription  $subscription
+     * @return \Laravel\Cashier\Subscription
+     */
+    public function updateSubscription(string $planName, \Laravel\Cashier\Subscription $subscription)
+    {
+        $oldPlan = $subscription->stripe_price;
+        $plan = InstanceHelper::getPlanInformationFromConfig($planName);
+        if ($plan === null) {
+            abort(404);
+        }
+
+        if ($oldPlan === $planName) {
+            // No change
+            return $subscription;
+        }
+
+        $subscription = $this->stripeCall(function () use ($subscription, $plan) {
+            return $subscription->swap($plan['id']);
+        });
+
+        if ($subscription->stripe_price !== $oldPlan && $subscription->stripe_price === $plan['id']) {
+            $subscription->forceFill([
+                'name' => $plan['name'],
+            ])->save();
+        }
+
+        return $subscription;
+    }
+
+    /**
+     * Check if the account is currently subscribed to a plan.
+     *
+     * @return bool
+     */
+    public function isSubscribed()
+    {
+        if ($this->has_access_to_paid_version_for_free) {
+            return true;
+        }
+
+        return $this->getSubscribedPlan() !== null;
+    }
+
+    /**
+     * Get the subscription the account is subscribed to.
+     *
+     * @return \Laravel\Cashier\Subscription|null
+     */
+    public function getSubscribedPlan()
+    {
+        return $this->subscriptions()->recurring()->first();
+    }
+
+    /**
+     * Get the id of the plan the account is subscribed to.
+     *
+     * @return string
+     */
+    public function getSubscribedPlanId()
+    {
+        $plan = $this->getSubscribedPlan();
+
+        return is_null($plan) ? '' : $plan->stripe_price;
+    }
+
+    /**
+     * Get the friendly name of the plan the account is subscribed to.
+     *
+     * @return string|null
+     */
+    public function getSubscribedPlanName(): ?string
+    {
+        $plan = $this->getSubscribedPlan();
+
+        return is_null($plan) ? null : $plan->name;
+    }
+
+    /**
+     * Cancel the plan the account is subscribed to.
+     *
+     * @return bool|string
+     */
+    public function subscriptionCancel()
+    {
+        $plan = $this->getSubscribedPlan();
+
+        if (! is_null($plan)) {
+            return $this->stripeCall(function () use ($plan) {
+                $plan->cancelNow();
+
+                return true;
+            });
+        }
+
+        return false;
+    }
+
+    /**
+     * Check if the account has invoices linked to this account.
+     *
+     * @return bool
+     */
+    public function hasInvoices()
+    {
+        return $this->subscriptions()->count() > 0;
+    }
+}