From d871bc40b864f64fe3291d8b8139abcab5b16f2f Mon Sep 17 00:00:00 2001
From: krzysztofmadejski <krzysztof@madejscy.pl>
Date: Sun, 6 Nov 2016 10:48:17 +0100
Subject: [PATCH] #459 - next iteration

---
 src/i18n/view.i18n.js | 66 +++++++++++++++++++++++++++++++------------
 1 file changed, 48 insertions(+), 18 deletions(-)

diff --git a/src/i18n/view.i18n.js b/src/i18n/view.i18n.js
index 20857fe8..c20d123d 100644
--- a/src/i18n/view.i18n.js
+++ b/src/i18n/view.i18n.js
@@ -1,48 +1,78 @@
 /*jshint multistr:true */
 
+// todo probably some kind of mixin would be better
+//usage: (zamienic na extension)
+// my.View - Backbone.View.extend({});
+//_.extend(my.View, Backbone.I18nView);
+
 Backbone.I18nView = Backbone.View.extend({
     locale: 'en',
-    initialize: function() {
-        console.log("Call on me");
+    initializeI18n: function(locale) {
+        this.locale = locale;
         // TODO implement cache
         //memoizeFormatConstructor(Intl.NumberFormat).getNumberFormat();
     },
+
+    formatMessage(key, values) {
+        this.cachedMsg.format(key, values);
+    },
+
+    // TODO how to use it from outside? an singleton instance of I18n? use case: pass translated strings into view initializer
     t: function(key, values = {}, defaultMessage = null) {
         // get the message from current locale
-        var msg = recline.View.translations['pl'][key];
+        var msg = recline.View.translations[this.locale][key];
 
         // fallback to key or default message if no translation is defined
         if (msg == null) {
-            console.warn("Missing locale for " + "pl" + "." + key); // TODO when dfault set and it's default locale then be quiet
+            console.warn("Missing locale for " + this.locale + "." + key); // TODO when dfault set and it's default locale then be quiet
             msg = defaultMessage;
         }
         if (msg == null) { msg = key; }
 
-        // TODO test fallback to key
-        // TODO test fallback to default message
-        // TODO test overriding messages in external apps
         // TODO i18n documentation
 
-        var mf = new IntlMessageFormat(msg, 'pl');
-        return mf.format(values);
+        try {
+            var mf = new IntlMessageFormat(msg, 'pl');
+            var formatted = mf.format(values);
+
+            return formatted;
+        } catch (e) {
+            console.error("Got error while formatting \"" + msg + "\": " + e.message);
+            // todo {{ wywala Message format, trzeba by wyescapować i pwrzywrócic po podmianie
+            return msg;
+        }
+
+        // TODO document below error (most probable variables ref hasn't ben changed in template)
+        /* 19:10:40.954 SyntaxError: <template>:1
+ >>    <div class="recline-data-explorer">     <div class="alert-messages"></div>         <div class="header clearfix">       <div class="navigation">         <div class="btn-group" data-toggle="buttons-radio">         {{#views}}         <button href="#{{id}}" data-view="{{id}}" class="btn btn-default">{{label}}</button>         {{/views}}         </div>       </div>       <div class="recline-results-info">         {{t.num_records}} -> t + getattr         {{#trans.num_records_defmsg}}<span class="doc-count">{{recordCount}}</span> records{{/trans.num_records_defmsg}} --         <span class="doc-count">{{recordCount}}</span> records      </div>       <div class="menu-right">         <div class="btn-group" data-toggle="buttons-checkbox">           {{#sidebarViews}}           <button href="#" data-action="{{id}}" class="btn btn-default">{{label}}</button>           {{/sidebarViews}}         </div>       </div>       <div class="query-editor-here" style="display:inline;"></div>     </div>     <div class="data-view-sidebar"></div>     <div class="data-view-container"></div>   </div>
+Expected "0", [1-9] or [^ \t\n\r,.+={}#] but "{" found.1(unknown)
+*/
+
     },
+
     MustacheFormatter: function() {
-        var property_formatter = new Proxy({}, {
-            get(target, name) {
-                // todo implement formatting
-                return "key: " + name;
+        var property_formatter = new Proxy(this, {
+            get(view, name) {
+                return view.t(name);
             },
             has(target, prop) {
                 return true;
             }
         });
 
-        var section_formatter = function() {
-            return function (text, render) {
-                // todo implement formatting
-                return "<b>" + render(text) + "</b>";
+        var section_formatter = new Proxy(this, {
+            get(view, name) {
+                return function() {
+                    return function (text, render) {
+                        var trans = view.t(name, this, text);
+                        return render(text);
+                    }
+                };
+            },
+            has(target, prop) {
+                return true;
             }
-        };
+        });
 
         return {
             't': property_formatter,