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