Add Stripe Cancellation Webhook

[jessleenyc]

What type of PR is this? (check all applicable)

• Refactor
• Feature
• Bug Fix
• Documentation Update

Description

• Should remove user membership if subscription is cancelled (through stripe aka card is declined)
• Allows users to cancel memberships even if subscription has already been removed (by stripe)

After Deploying

• Run script to remove memberships for users who do not have active subscriptions

users_with_no_stripe_sub = potentially_affected_users.select do |user|
  Stripe::Customer.retrieve(user.stripe_id_code).subscriptions.total_count.zero?
end

users_with_no_stripe_sub.each do |user|
  customer = Stripe::Customer.retrieve(user.stripe_id_code)
  MembershipService.new(customer, user, user.monthly_dues).unsubscribe_customer
end

• Send email to these members that their memberships have been cancelled
• Add email reminders for users who experience billing issues

[Zhao-Andy]

Looks like coupon codes were removed by accident 🙈

[maestromac]

Looks great!