From 25b701de177e76124a20311b3edf7c9ce693ac1c Mon Sep 17 00:00:00 2001
From: jysperm <jysperm@gmail.com>
Date: Fri, 3 Oct 2014 00:20:07 +0800
Subject: [PATCH] i18n translator

---
 core/i18n.coffee                      | 70 ++++++++++++++++++++-------
 core/static/script/panel.coffee       |  5 +-
 core/static/script/ticket/view.coffee |  4 +-
 package.json                          |  2 +-
 4 files changed, 59 insertions(+), 22 deletions(-)

diff --git a/core/i18n.coffee b/core/i18n.coffee
index 1db5462..516983b 100644
--- a/core/i18n.coffee
+++ b/core/i18n.coffee
@@ -2,15 +2,12 @@ path = require 'path'
 fs = require 'fs'
 _ = require 'underscore'
 
-acceptLanguage = require 'accept-language'
 stringify = require 'json-stable-stringify'
 
 utils = require './utils'
 cache = require './cache'
 config = require '../config'
 
-acceptLanguage.default config.i18n.default_language.replace('_', '-')
-
 i18n_data = {}
 
 for lang in config.i18n.available_language
@@ -23,29 +20,68 @@ exports.loadForPlugin = (plugin) ->
     if fs.existsSync path
       i18n_data[lang]['plugins'][plugin.name] = require lang
 
-exports.translate = (name, lang) ->
-  unless lang
-    lang = config.i18n.default_language
+exports.parseLanguageCode = parseLanguageCode = (language) ->
+  [lang, country] = language.replace('-', '_').split '_'
 
+  return {
+    language: language
+    lang: lang.toLowerCase()
+    country: country.toUpperCase()
+  }
+
+exports.calcLanguagePriority = (req) ->
+  negotiator = new Negotiator req
+  language_info = parseLanguageCode req.cookies.language
+
+  result = _.filter config.i18n.available_language, (i) ->
+    return i.language == language_info.language
+
+  result = _.union result, _.filter config.i18n.available_language, (i) ->
+    return parseLanguageCode(i).lang == language_info.lang
+
+  result = _.union result, _.filter config.i18n.available_language, (i) ->
+    return parseLanguageCode(i).lang in negotiator.languages()
+
+  result.push config.i18n.default_language
+
+  result = _.union result, config.i18n.available_language
+
+  return result
+
+exports.translateByLanguage = (name, language) ->
   keys = name.split '.'
-  keys.unshift lang
+  keys.unshift language
 
   result = i18n_data
 
   for item in keys
-    unless result[item] == undefined
+    if result[item] == undefined
+      return undefined
+    else
       result = result[item]
 
-  if result == undefined and lang != config.i18n.default_language
-    return exports.translate name, config.i18n.default_language
-  else if _.isObject result
-    return name
-  else
-    return result
+  return result
 
-exports.getTranslator = (lang) ->
-  return (name) ->
-    return exports.translate name, lang
+exports.translate = (name, req) ->
+  priority_order = exports.calcLanguagePriority req
+
+  for language in priority_order
+    result = exports.translateByLanguage name, language
+
+    if result != undefined
+      return result
+
+  return name
+
+exports.getTranslator = (req) ->
+  return  (name, payload) ->
+    result = exports.translate name, req
+
+    if _.isObject payload
+      for k, v of payload
+        result = result.replace new RegExp("__#{k}__", 'g'), v
+
+    return result
 
 exports.initI18nData = (req, res, next) ->
   timezone_mapping =
diff --git a/core/static/script/panel.coffee b/core/static/script/panel.coffee
index f38ef81..d9a0263 100644
--- a/core/static/script/panel.coffee
+++ b/core/static/script/panel.coffee
@@ -1,5 +1,6 @@
 $ ->
   $('#service-switch button').click ->
+    # TODO: refactor
     is_enable = if $(@).hasClass 'btn-success' then true else false
     $.post "/plugin/#{$(@).data('name')}/switch/", JSON.stringify
       enable: is_enable
@@ -15,11 +16,11 @@ $ ->
     if window.confirm 'Are you sure?'
       request '/billing/leave_plan/',
         plan: $(@).parents('tr').data 'name'
-      , (result) ->
+      , ->
         location.reload()
 
   $('.action-join-plan').click ->
     request '/billing/join_plan/',
       plan: $(@).parents('tr').data 'name'
-    , (result) ->
+    , ->
       location.reload()
diff --git a/core/static/script/ticket/view.coffee b/core/static/script/ticket/view.coffee
index 5536eda..9322071 100644
--- a/core/static/script/ticket/view.coffee
+++ b/core/static/script/ticket/view.coffee
@@ -5,12 +5,12 @@ $ ->
     request '/ticket/reply/',
       id: id
       content: $('.input-content').val()
-    , (result) ->
+    , ->
       location.reload()
 
   $('.action-update-status').click ->
     request '/ticket/update_status/',
       id: id
       status: $(@).data 'status'
-    , (result) ->
+    , ->
       location.reload()
diff --git a/package.json b/package.json
index 41569c1..e1fbbab 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
         "rp-clean": "./bin/rp-clean.coffee"
     },
     "dependencies": {
-        "accept-language": "^1.2.0",
+        "negotiator": "^0.4.8",
         "async": "^0.9.0",
         "coffee-script": "^1.7.1",
         "connect": "^2.17.3",