From 58a059b94afee29767303b399b48629985a48942 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Thu, 22 Apr 2021 13:57:43 +0200
Subject: refactor base template, language selector

---
 talermerchantdemos/httpcommon/__init__.py | 56 +++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

(limited to 'talermerchantdemos/httpcommon')

diff --git a/talermerchantdemos/httpcommon/__init__.py b/talermerchantdemos/httpcommon/__init__.py
index 39cd696..785494b 100644
--- a/talermerchantdemos/httpcommon/__init__.py
+++ b/talermerchantdemos/httpcommon/__init__.py
@@ -5,6 +5,8 @@ from flask import request
 from datetime import datetime
 import time
 from flask_babel import gettext
+import os
+import re
 
 
 class BackendException(Exception):
@@ -129,3 +131,57 @@ class Deadline:
             )
         )
         return now > self.value
+
+
+all_languages = {
+    "en": "English [en]",
+    "ar": "Arabic [ar]",
+    "zh_Hant": "Chinese [zh]",
+    "fr": "French [fr]",
+    "de": "German [de]",
+    "hi": "Hindi [hi]",
+    "it": "Italian [it]",
+    "ja": "Japanese [ja]",
+    "ko": "Korean [ko]",
+    "pt": "Portuguese [pt]",
+    "pt_BR": "Portuguese (Brazil) [pt_BR]",
+    "ru": "Russian [ru]",
+    "es": "Spanish [es]",
+    "sv": "Swedish [sv]",
+    "tr": "Turkish [tr]",
+}
+
+
+
+##
+# Make the environment available into templates.
+#
+# @return the environment-reading function
+def make_utility_processor(pagename):
+    def utility_processor():
+        def getactive():
+            return pagename
+
+        def getlang():
+            return get_locale()
+
+        def env(name, default=None):
+            return os.environ.get(name, default)
+
+        def prettydate(talerdate):
+            parsed_time = re.search(r"/Date\(([0-9]+)\)/", talerdate)
+            if not parsed_time:
+                return "malformed date given"
+            parsed_time = int(parsed_time.group(1))
+            timestamp = datetime.datetime.fromtimestamp(parsed_time)
+            # returns the YYYY-MM-DD date format.
+            return timestamp.strftime("%Y-%b-%d")
+
+        return dict(
+            env=env,
+            prettydate=prettydate,
+            getactive=getactive,
+            getlang=getlang,
+            all_languages=all_languages,
+        )
+    return utility_processor
-- 
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