forked from potsda.mn/mobilizon
109 lines
2.8 KiB
Elixir
109 lines
2.8 KiB
Elixir
defmodule MobilizonWeb.API.Search do
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@moduledoc """
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API for search.
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"""
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alias Mobilizon.Actors
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alias Mobilizon.Actors.ActorType
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alias Mobilizon.Events
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alias Mobilizon.Service.ActivityPub
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alias Mobilizon.Storage.Page
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require Logger
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@doc """
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Searches actors.
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"""
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@spec search_actors(String.t(), integer | nil, integer | nil, ActorType.t()) ::
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{:ok, Page.t()} | {:error, String.t()}
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def search_actors(search, page \\ 1, limit \\ 10, result_type) do
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search = String.trim(search)
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cond do
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search == "" ->
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{:error, "Search can't be empty"}
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# Some URLs could be domain.tld/@username, so keep this condition above
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# the `is_handle` function
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is_url(search) ->
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# skip, if it's not an actor
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case process_from_url(search) do
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%Page{total: _total, elements: _elements} = page ->
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{:ok, page}
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_ ->
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{:ok, %{total: 0, elements: []}}
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end
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is_handle(search) ->
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{:ok, process_from_username(search)}
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true ->
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page = Actors.build_actors_by_username_or_name_page(search, [result_type], page, limit)
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{:ok, page}
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end
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end
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@doc """
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Search events
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"""
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@spec search_events(String.t(), integer | nil, integer | nil) ::
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{:ok, Page.t()} | {:error, String.t()}
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def search_events(search, page \\ 1, limit \\ 10) do
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search = String.trim(search)
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cond do
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search == "" ->
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{:error, "Search can't be empty"}
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is_url(search) ->
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# skip, if it's w not an actor
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case process_from_url(search) do
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%Page{total: _total, elements: _elements} = page ->
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{:ok, page}
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_ ->
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{:ok, %{total: 0, elements: []}}
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end
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true ->
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{:ok, Events.find_and_count_events_by_name(search, page, limit)}
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end
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end
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# If the search string is an username
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@spec process_from_username(String.t()) :: Page.t()
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defp process_from_username(search) do
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case ActivityPub.find_or_make_actor_from_nickname(search) do
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{:ok, actor} ->
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%Page{total: 1, elements: [actor]}
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{:error, _err} ->
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Logger.debug(fn -> "Unable to find or make actor '#{search}'" end)
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%Page{total: 0, elements: []}
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end
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end
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# If the search string is an URL
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@spec process_from_url(String.t()) :: Page.t()
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defp process_from_url(search) do
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case ActivityPub.fetch_object_from_url(search) do
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{:ok, object} ->
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%Page{total: 1, elements: [object]}
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{:error, _err} ->
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Logger.debug(fn -> "Unable to find or make object from URL '#{search}'" end)
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%Page{total: 0, elements: []}
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end
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end
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@spec is_url(String.t()) :: boolean
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defp is_url(search), do: String.starts_with?(search, ["http://", "https://"])
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@spec is_handle(String.t()) :: boolean
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defp is_handle(search), do: String.match?(search, ~r/@/)
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end
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