forked from potsda.mn/mobilizon
93 lines
2.5 KiB
Elixir
93 lines
2.5 KiB
Elixir
defmodule Mobilizon.Service.ActivityPub.Converter.Flag do
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@moduledoc """
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Flag converter.
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This module allows to convert reports from ActivityStream format to our own
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internal one, and back.
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Note: Reports are named Flag in AS.
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"""
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alias Mobilizon.Actors
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alias Mobilizon.Actors.Actor
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alias Mobilizon.Events
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alias Mobilizon.Events.Event
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alias Mobilizon.Reports.Report
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alias Mobilizon.Service.ActivityPub.Converter
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@behaviour Converter
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@doc """
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Converts an AP object data to our internal data structure.
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"""
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@impl Converter
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@spec as_to_model_data(map) :: map
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def as_to_model_data(object) do
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with params <- as_to_model(object) do
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%{
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"reporter_id" => params["reporter"].id,
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"uri" => params["uri"],
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"content" => params["content"],
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"reported_id" => params["reported"].id,
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"event_id" => (!is_nil(params["event"]) && params["event"].id) || nil,
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"comments" => params["comments"]
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}
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end
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end
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@doc """
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Convert an event struct to an ActivityStream representation
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"""
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@impl Converter
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@spec model_to_as(EventModel.t()) :: map
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def model_to_as(%Report{} = report) do
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%{
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"type" => "Flag",
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"to" => ["https://www.w3.org/ns/activitystreams#Public"],
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"actor" => report.reporter.url,
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"id" => report.url
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}
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end
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@spec as_to_model(map) :: map
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def as_to_model(%{"object" => objects} = object) do
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with {:ok, %Actor{} = reporter} <- Actors.get_actor_by_url(object["actor"]),
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%Actor{} = reported <-
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Enum.reduce_while(objects, nil, fn url, _ ->
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case Actors.get_actor_by_url(url) do
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{:ok, %Actor{} = actor} ->
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{:halt, actor}
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_ ->
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{:cont, nil}
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end
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end),
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event <-
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Enum.reduce_while(objects, nil, fn url, _ ->
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case Events.get_event_by_url(url) do
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%Event{} = event ->
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{:halt, event}
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_ ->
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{:cont, nil}
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end
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end),
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# Remove the reported user from the object list.
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comments <-
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Enum.filter(objects, fn url ->
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!(url == reported.url || (!is_nil(event) && event.url == url))
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end),
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comments <- Enum.map(comments, &Events.get_comment_from_url/1) do
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%{
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"reporter" => reporter,
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"uri" => object["id"],
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"content" => object["content"],
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"reported" => reported,
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"event" => event,
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"comments" => comments
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}
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end
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end
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end
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