1 files changed, 27 insertions, 0 deletions
diff --git a/packages/gitbook-core/src/reducers/i18n.js b/packages/gitbook-core/src/reducers/i18n.js
new file mode 100644
index 0000000..4ffd129
--- /dev/null
+++ b/packages/gitbook-core/src/reducers/i18n.js
@@ -0,0 +1,27 @@
+const { Record, Map } = require('immutable');
+const ACTION_TYPES = require('../actions/TYPES');
+
+const I18nState = Record({
+    locale: 'en',
+    // Map of locale -> Map<String:String>
+    messages: Map()
+});
+
+function reduceI18n(state, action) {
+    state = state || I18nState();
+    switch (action.type) {
+
+    case ACTION_TYPES.I18N_REGISTER_LOCALE:
+        return state.merge({
+            messages: state.messages.set(action.locale,
+                state.messages.get(action.locale, Map()).merge(action.messages)
+            )
+        });
+
+    default:
+        return state;
+
+    }
+}
+
+module.exports = reduceI18n;