mobilizon/lib/graphql/resolvers/picture.ex

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Elixir
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defmodule Mobilizon.GraphQL.Resolvers.Picture do
@moduledoc """
Handles the picture-related GraphQL calls
"""
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alias Mobilizon.Actors.Actor
alias Mobilizon.{Media, Users}
alias Mobilizon.Media.Picture
alias Mobilizon.Users.User
import Mobilizon.Web.Gettext
@doc """
Get picture for an event
See Mobilizon.Web.Resolvers.Event.create_event/3
"""
def picture(%{picture_id: picture_id} = _parent, _args, _resolution) do
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with {:ok, picture} <- do_fetch_picture(picture_id), do: {:ok, picture}
end
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def picture(%{picture: picture} = _parent, _args, _resolution), do: {:ok, picture}
def picture(_parent, %{id: picture_id}, _resolution), do: do_fetch_picture(picture_id)
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def picture(_parent, _args, _resolution), do: {:ok, nil}
@spec do_fetch_picture(nil) :: {:error, nil}
defp do_fetch_picture(nil), do: {:error, nil}
@spec do_fetch_picture(String.t()) :: {:ok, Picture.t()} | {:error, :not_found}
defp do_fetch_picture(picture_id) do
case Media.get_picture(picture_id) do
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%Picture{id: id, file: file} ->
{:ok,
%{
name: file.name,
url: file.url,
id: id,
content_type: file.content_type,
size: file.size
}}
nil ->
{:error, :not_found}
end
end
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@spec upload_picture(map, map, map) :: {:ok, Picture.t()} | {:error, any}
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def upload_picture(
_parent,
%{file: %Plug.Upload{} = file} = args,
%{context: %{current_user: %User{} = user}}
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) do
with %Actor{id: actor_id} <- Users.get_actor_for_user(user),
{:ok, %{name: _name, url: url, content_type: content_type, size: size}} <-
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Mobilizon.Web.Upload.store(file),
args <-
args
|> Map.put(:url, url)
|> Map.put(:size, size)
|> Map.put(:content_type, content_type),
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{:ok, picture = %Picture{}} <-
Media.create_picture(%{"file" => args, "actor_id" => actor_id}) do
{:ok,
%{
name: picture.file.name,
url: picture.file.url,
id: picture.id,
content_type: picture.file.content_type,
size: picture.file.size
}}
else
{:error, :mime_type_not_allowed} ->
{:error, dgettext("errors", "File doesn't have an allowed MIME type.")}
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error ->
{:error, error}
end
end
def upload_picture(_parent, _args, _resolution), do: {:error, :unauthenticated}
@doc """
Remove a picture that the user owns
"""
@spec remove_picture(map(), map(), map()) ::
{:ok, Picture.t()}
| {:error, :unauthorized}
| {:error, :unauthenticated}
| {:error, :not_found}
def remove_picture(_parent, %{id: picture_id}, %{context: %{current_user: %User{} = user}}) do
with {:picture, %Picture{actor_id: actor_id} = picture} <-
{:picture, Media.get_picture(picture_id)},
{:is_owned, %Actor{} = _actor} <- User.owns_actor(user, actor_id) do
Media.delete_picture(picture)
else
{:picture, nil} -> {:error, :not_found}
{:is_owned, _} -> {:error, :unauthorized}
end
end
def remove_picture(_parent, _args, _resolution), do: {:error, :unauthenticated}
end