defmodule ItsfoundPostage.Webhooks do
  @moduledoc """
  This module processes the Easyhip webhook payloads.
  """

  @doc """
  When your label has been created.
  """
  def process_event(
    %{
      "event_type"=> "shipment.label.created",
      "resource_type"=> "shipment",
      "resource_id"=> _resource_id,
      "label"=> %{
        "easyship_shipment_id"=> _easyship_shipment_id,
        "platform_order_number"=> _platform_order_number,
        "status"=> _status,
        "label_url"=> _label_url,
        "tracking_number"=> _tracking_number,
        "tracking_page_url"=> _tracking_page_url
      }
    } = payload
  ) do
    %{data: payload}
  end

  @doc """
  When your shipment's checkpoints increased.
  """
  def process_event(
    %{
      "event_type"=> "shipment.label.created",
      "resource_type"=> "shipment",
      "resource_id"=> _resource_id,
      "tracking"=> %{
        "easyship_shipment_id"=> _easyship_shipment_id,
        "platform_order_number"=> _platform_order_number,
        "origin"=> _origin,
        "destination"=> _destination,
        "company_order_number"=> _company_order_number,
        "status"=> _status,
        "tracking_number"=> _tracking_number,
        "tracking_page_url"=> _tracking_page_url,
        "checkpoints"=> _checkpoints
      }
    } = payload
  ) do
    %{data: payload}
  end

  @doc """
  When your shipment's tracking status changed
  """
  def process_event(
    %{
      "event_type"=> "shipment.label.created",
      "resource_type"=> "shipment",
      "resource_id"=> _resource_id,
      "tracking"=> %{
        "easyship_shipment_id"=> _easyship_shipment_id,
        "platform_order_number"=> _platform_order_number,
        "origin"=> _origin,
        "destination"=> _destination,
        "company_order_number"=> _company_order_number,
        "status"=> _status,
        "tracking_number"=> _tracking_number,
        "tracking_page_url"=> _tracking_page_url
      }
    } = payload
  ) do
    %{data: payload}
  end

  @doc """
  When your shipment's tracking status changed.
  """
  def process_event(
    %{
      "event_type"=> "shipment.label.failed",
      "resource_type"=> "shipment",
      "resource_id"=> _resource_id,
      "label"=> %{
        "easyship_shipment_id"=> _easyship_shipment_id,
        "platform_order_number"=> _platform_order_number,
        "status"=> "failed"
      }
    } = payload
  ) do
    %{data: payload}
  end

  @doc """
  When your shipment's tracking status changed.
  """
  def process_event(
    %{
      "event_type"=> "shipment.cancelled",
      "resource_type"=> "shipment",
      "resource_id"=> _resource_id,
      "shipment"=> %{
        "easyship_shipment_id"=> _easyship_shipment_id,
        "platform_order_number"=> _platform_order_number,
        "status"=> "cancelled"
      }
    } = payload
  ) do
    %{data: payload}
  end

  @doc """
  When your shipment's warehouse state has been updated.
  """
  def process_event(
    %{
      "event_type"=> "shipment.warehouse.state.updated",
      "resource_type"=> "shipment",
      "resource_id"=> _resource_id,
      "shipment"=> %{
        "easyship_shipment_id"=> _easyship_shipment_id,
        "platform_order_number"=> _platform_order_number,
        "warehouse_state"=> _warehouse_state
      }
    } = payload
  ) do
    %{data: payload}
  end

  def process_event(_), do: {:error, :invalid_event}
end