qb_akkoma/lib/pleroma/akkoma/translators/deepl.ex
floatingghost decbca0c91 add seperate source and dest entries in language listing (#193)
Co-authored-by: FloatingGhost <hannah@coffee-and-dreams.uk>
Reviewed-on: AkkomaGang/akkoma#193
2022-08-30 16:59:33 +00:00

100 lines
2.7 KiB
Elixir

defmodule Pleroma.Akkoma.Translators.DeepL do
@behaviour Pleroma.Akkoma.Translator
alias Pleroma.HTTP
alias Pleroma.Config
require Logger
defp base_url(:free) do
"https://api-free.deepl.com/v2/"
end
defp base_url(:pro) do
"https://api.deepl.com/v2/"
end
defp api_key do
Config.get([:deepl, :api_key])
end
defp tier do
Config.get([:deepl, :tier])
end
@impl Pleroma.Akkoma.Translator
def languages do
with {:ok, %{status: 200} = source_response} <- do_languages("source"),
{:ok, %{status: 200} = dest_response} <- do_languages("target"),
{:ok, source_body} <- Jason.decode(source_response.body),
{:ok, dest_body} <- Jason.decode(dest_response.body) do
source_resp =
Enum.map(source_body, fn %{"language" => code, "name" => name} ->
%{code: code, name: name}
end)
dest_resp =
Enum.map(dest_body, fn %{"language" => code, "name" => name} ->
%{code: code, name: name}
end)
{:ok, source_resp, dest_resp}
else
{:ok, %{status: status} = response} ->
Logger.warning("DeepL: Request rejected: #{inspect(response)}")
{:error, "DeepL request failed (code #{status})"}
{:error, reason} ->
{:error, reason}
end
end
@impl Pleroma.Akkoma.Translator
def translate(string, from_language, to_language) do
with {:ok, %{status: 200} = response} <-
do_request(api_key(), tier(), string, from_language, to_language),
{:ok, body} <- Jason.decode(response.body) do
%{"translations" => [%{"text" => translated, "detected_source_language" => detected}]} =
body
{:ok, detected, translated}
else
{:ok, %{status: status} = response} ->
Logger.warning("DeepL: Request rejected: #{inspect(response)}")
{:error, "DeepL request failed (code #{status})"}
{:error, reason} ->
{:error, reason}
end
end
defp do_request(api_key, tier, string, from_language, to_language) do
HTTP.post(
base_url(tier) <> "translate",
URI.encode_query(
%{
text: string,
target_lang: to_language,
tag_handling: "html"
}
|> maybe_add_source(from_language),
:rfc3986
),
[
{"authorization", "DeepL-Auth-Key #{api_key}"},
{"content-type", "application/x-www-form-urlencoded"}
]
)
end
defp maybe_add_source(opts, nil), do: opts
defp maybe_add_source(opts, lang), do: Map.put(opts, :source_lang, lang)
defp do_languages(type) do
HTTP.get(
base_url(tier()) <> "languages?type=#{type}",
[
{"authorization", "DeepL-Auth-Key #{api_key()}"}
]
)
end
end