From c148ad54cf99d3347076a3c3caa01cb3013f3512 Mon Sep 17 00:00:00 2001
From: OverflowCat <overflowcat@gmail.com>
Date: Thu, 17 Aug 2023 03:17:56 +0800
Subject: [PATCH] feat(i18n): detect system language

---
 README.md                                           | 6 +++++-
 biliarchiver/i18n.py                                | 7 ++++++-
 biliarchiver/locales/en/LC_MESSAGES/biliarchiver.po | 6 +++---
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 7e143bb..1a7fb3b 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,8 @@ Please use poetry to install dependencies:
 poetry install
 ```
 
+Build English locale if necessary. Refer to the last section for details.
+
 ### Run
 
 ```sh
@@ -59,6 +61,8 @@ poetry run ruff check .
 
 ### i18n
 
+To generate and build locales, you need a GNU gettext compatible toolchain. You can install `mingw` and use `sh` to enter a bash shell on Windows.
+
 Generate `biliarchiver.pot`:
 
 ```sh
@@ -77,7 +81,7 @@ Update a language:
 pnpx gpt-po sync --po biliarchiver/locales/en/LC_MESSAGES/biliarchiver.po --pot biliarchiver/locales/biliarchiver.pot
 ```
 
-Build a language:
+**(Important)** Build a language:
 
 ```sh
 msgfmt biliarchiver/locales/en/LC_MESSAGES/biliarchiver.po -o biliarchiver/locales/en/LC_MESSAGES/biliarchiver.mo
diff --git a/biliarchiver/i18n.py b/biliarchiver/i18n.py
index 3201b05..5cb9031 100644
--- a/biliarchiver/i18n.py
+++ b/biliarchiver/i18n.py
@@ -1,9 +1,14 @@
 import gettext
+import locale
+
+default_lang, default_enc = locale.getdefaultlocale()
+
+languages = ["en"] if default_lang.startswith("en") else ["zh_CN"]
 
 appname = "biliarchiver"
 
 i18n = gettext.translation(
-    appname, localedir="biliarchiver/locales", fallback=True, languages=["en"]
+    appname, localedir="biliarchiver/locales", fallback=True, languages=languages
 )
 
 _ = i18n.gettext
diff --git a/biliarchiver/locales/en/LC_MESSAGES/biliarchiver.po b/biliarchiver/locales/en/LC_MESSAGES/biliarchiver.po
index ccde1e6..58fe4e5 100644
--- a/biliarchiver/locales/en/LC_MESSAGES/biliarchiver.po
+++ b/biliarchiver/locales/en/LC_MESSAGES/biliarchiver.po
@@ -2,7 +2,7 @@
 # Copyright (C) 2023 THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the PACKAGE package.
 # Neko <overflowcat@gmail.com>, 2023.
-# 
+#
 msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
@@ -280,8 +280,8 @@ msgstr "Batch fetching BV numbers"
 #: biliarchiver/cli_tools/get_command.py:307
 msgid "请通过 flag 指定至少一种批量获取 BV 号的方式。多个不同组的 flag 同时使用时，将会先后通过不同方式获取。"
 msgstr ""
-"Please specify at least one way to batch fetch BV numbers through the flag. When multiple group flags are used "
-"simultaneously, they will be fetched in sequence."
+"Please specify at least one way to batch fetch BV numbers through the flag."
+"When flags of multiple groups are used together, they will be fetched in sequence."
 
 #: biliarchiver/cli_tools/get_command.py:309
 msgid "合集"