[IMP]google_tag_manager_advanced_tracking, facebook_pixel_tracking

[JrAdhoc]

google_tag_manager_advanced_tracking:

• Shipping and discount separated from product items in GTM events
• Reward lines filtered from items, accumulated as discount
• Replaced legacy Python-dict string parsing with standard JSON.parse

facebook_pixel_tracking:

• Migrated all events to current Meta Pixel standard (content_ids, contents, currency, value)
• Fixed critical bug: Purchase event was not being fired (missing event name)
• Delivery and reward lines excluded from contents

website_sale_advanced_tracking (shared):

• prepare_purchase_information: delivery/reward lines separated; returns json.dumps()
• prepare_checkout_information: added is_reward_line flag; item_name uses product name; returns json.dumps()
• Template: data-product_id on add_to_cart now uses product.id (always present) instead of default_code

[roboadhoc]

[Copilot]

Pull request overview

Este PR ajusta el payload de eCommerce enviado a Google Tag Manager (GTM) para separar explícitamente shipping y discount de la lista de items, alineando mejor el tracking con escenarios de líneas de envío y líneas de recompensa/descuento.

Changes:

• Se agrega el flag is_reward_line en la información de checkout por línea para poder excluir/reagrupar líneas de descuento en frontend.
• En prepare_purchase_information() se separan líneas de descuento (reward) y envío (delivery) para enviarlas como discount y shipping, excluyéndolas de items.
• En JS, el evento begin_checkout filtra líneas reward, calcula discount y envía items sin reward lines; además evita error cuando no existe #cart_products.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
website_sale_advanced_tracking/models/sale_order_line.py	Añade is_reward_line al payload de checkout por línea.
website_sale_advanced_tracking/models/sale_order.py	Separa shipping/discount de items al preparar la info de compra.
google_tag_manager_advanced_tracking/static/src/js/website_sale_tracking.js	Ajusta begin_checkout para excluir reward lines y mandar discount; añade guard contra #cart_products inexistente.

[cem-adhoc]

@roboadhoc r+ bump