Implement PayGreen - WEB

[alexsegura]

What we want is to be able to use Stripe OR PayGreen. For each restaurant, we need to add a property that allows to choose between Stripe and PayGreen.

• [x] Allow storing PayGreen app id & private key in platform settings
• [x] Allow connecting each restaurant with PayGreen
• [ ] Change GatewayResolver::resolve to pass the order as parameter, and decide which gateway to use based on the order context (if the restaurant of the order should use PayGreen, use it)
• [ ] Allow choosing between Stripe & Paygreen at restaurant level

See libs

• https://paygreen.github.io/paygreen-ui-doc/docs/
• https://github.com/PayGreen/paygreen-php

See examples

• https://github.com/RenaudGreen/PayGreenPrestashop
• https://github.com/PayGreen/sylius-paygreen-plugin

See docs

• https://github.com/PayGreen/paygreen-php/tree/master/docs/v2
• https://paygreen.fr/documentation/api-documentation-categorie

[alexsegura]

I think a good example can be found in this piece of code in PayGreen/sylius-paygreen-plugin.

https://github.com/PayGreen/sylius-paygreen-plugin/blob/95efa63a560bd1ce096758c15bf62ec1b7be66ad/src/Payum/Action/CaptureAction.php#L65-L96

It creates a payment using paygreen/paygreen-php and redirects the user to a payment page. Should be quite the same when using an iframe.

// Redirect the customer to the PayGreen payment page
throw new HttpPostRedirect($url);

[Paul-Eraman-CoopCycle]

Having multiple payment platforms is a giant issue to assess, and has a large number of negative consequences in regards to adding exponential complexity in a number of different ways.