translations: use a more distinctive separator

I found that the translator would sometimes replace the pipe character
with another symbol (maybe it got confused thinking the character is
part of the text?).

Added spaces around the pipe to make it more clear that it's definitely
the separator.

Author: snejus

Diff for: beetsplug/lyrics.py

@@ -747,6 +747,7 @@ def scrape(cls, html: str) -> str | None:
 class Translator(RequestHandler):
     TRANSLATE_URL = "https://api.cognitive.microsofttranslator.com/translate"
     LINE_PARTS_RE = re.compile(r"^(\[\d\d:\d\d.\d\d\]|) *(.*)$")
+    SEPARATOR = " | "
     remove_translations = partial(re.compile(r" / [^\n]+").sub, "")
 
     _log: Logger
@@ -776,14 +777,16 @@ def get_translations(self, texts: Iterable[str]) -> list[tuple[str, str]]:
         map the translations back to the original texts.
         """
         unique_texts = list(dict.fromkeys(texts))
+        text = self.SEPARATOR.join(unique_texts)
         data: list[TranslatorAPI.Response] = self.post_json(
             self.TRANSLATE_URL,
             headers={"Ocp-Apim-Subscription-Key": self.api_key},
-            json=[{"text": "|".join(unique_texts)}],
+            json=[{"text": text}],
             params={"api-version": "3.0", "to": self.to_language},
         )
 
-        translations = data[0]["translations"][0]["text"].split("|")
+        translated_text = data[0]["translations"][0]["text"]
+        translations = translated_text.split(self.SEPARATOR)
         trans_by_text = dict(zip(unique_texts, translations))
         return list(zip(texts, (trans_by_text.get(t, "") for t in texts)))
 

Diff for: test/plugins/test_lyrics.py

@@ -548,23 +548,23 @@ def callback(request, _):
             if b"Refrain" in request.body:
                 translations = (
                     ""
-                    "|[Refrain : Doja Cat]"
-                    "|Difficile pour moi de te laisser partir (Te laisser partir, te laisser partir)"  # noqa: E501
-                    "|Mon corps ne me laissait pas le cacher (Cachez-le)"
-                    "|Quoi qu’il arrive, je ne plierais pas (Ne plierait pas, ne plierais pas)"  # noqa: E501
-                    "|Chevauchant à travers le tonnerre, la foudre"
+                    " | [Refrain : Doja Cat]"
+                    " | Difficile pour moi de te laisser partir (Te laisser partir, te laisser partir)"  # noqa: E501
+                    " | Mon corps ne me laissait pas le cacher (Cachez-le)"
+                    " | Quoi qu’il arrive, je ne plierais pas (Ne plierait pas, ne plierais pas)"  # noqa: E501
+                    " | Chevauchant à travers le tonnerre, la foudre"
                 )
             elif b"00:00.00" in request.body:
                 translations = (
                     ""
-                    "|[00:00.00] Quelques paroles synchronisées"
-                    "|[00:01.00] Quelques paroles plus synchronisées"
+                    " | [00:00.00] Quelques paroles synchronisées"
+                    " | [00:01.00] Quelques paroles plus synchronisées"
                 )
             else:
                 translations = (
                     ""
-                    "|Quelques paroles synchronisées"
-                    "|Quelques paroles plus synchronisées"
+                    " | Quelques paroles synchronisées"
+                    " | Quelques paroles plus synchronisées"
                 )
 
             return [