[bug] fix error when receiving message from unknown contact

src/status_im/chat/events.cljs

@@ -60,11 +60,6 @@
   (fn [cofx _]
     (assoc cofx :get-stored-chat chats-store/get-by-id)))
 
-(re-frame/reg-cofx
-  :gfy-generator
-  (fn [cofx _]
-    (assoc cofx :gfy-generator gfycat/generate-gfy)))
-
 ;;;; Effects
 
 (re-frame/reg-fx
@@ -290,7 +285,7 @@
 ;; TODO(janherich): remove this unnecessary event in the future (only model function `add-chat` will stay)
 (handlers/register-handler-fx
   :add-chat
-  [(re-frame/inject-cofx :gfy-generator) re-frame/trim-v]
+  [re-frame/trim-v]
   (fn [cofx [chat-id chat-props]]
     (model/add-chat cofx chat-id chat-props)))
 
@@ -313,8 +308,7 @@
 
 (handlers/register-handler-fx
   :start-chat
-  [(re-frame/inject-cofx :gfy-generator)
-   (re-frame/inject-cofx :get-stored-messages)
+  [(re-frame/inject-cofx :get-stored-messages)
    re-frame/trim-v]
   (fn [{:keys [db] :as cofx} [contact-id {:keys [navigation-replace?]}]]
     (when (not= (:current-public-key db) contact-id) ; don't allow to open chat with yourself

src/status_im/chat/events/receive_message.cljs

@@ -40,7 +40,7 @@
                                                                         access-scope->commands-responses
                                                                         account
                                                                         chat
-                                                                        contacts)] 
+                                                                        contacts)]
     (:ref (get available-commands-responses response-name))))
 
 (defn add-message
@@ -60,10 +60,13 @@
              (not= from (:public-key current-account))
              (pop-up-chat? chat-identifier))
       (let [group-chat?      (not (nil? group-id))
+            chat-exists?     (get-in db [:chats chat-identifier])
+            fx               (if chat-exists?
+                               (model/upsert-chat cofx {:chat-id    chat-identifier
+                                                        :group-chat group-chat?})
+                               (model/add-chat cofx chat-identifier))
             command-request? (= content-type const/content-type-command-request)
             command          (:command content)
-            fx               (model/upsert-chat cofx {:chat-id    chat-identifier
-                                                      :group-chat group-chat?})
             enriched-message (cond-> (assoc (chat-utils/check-author-direction
                                              (get-last-stored-message chat-identifier)
                                              message)
@@ -78,16 +81,17 @@
                                                               current-account
                                                               (get-in fx [:db :chats chat-identifier])
                                                               contacts
-                                                              command)))]
+                                                              command)))
+            update-db-fx       #(-> %
+                                    (chat-utils/add-message-to-db chat-identifier chat-identifier enriched-message
+                                                                  (:new? enriched-message))
+                                    (unviewed-messages-model/add-unviewed-message chat-identifier message-id)
+                                    (assoc-in [:chats chat-identifier :last-message] enriched-message))]
         (cond-> (-> fx
-                    (update :db #(-> %
-                                     (chat-utils/add-message-to-db chat-identifier chat-identifier enriched-message
-                                                                   (:new? enriched-message))
-                                     (unviewed-messages-model/add-unviewed-message chat-identifier message-id)
-                                     (assoc-in [:chats chat-identifier :last-message] enriched-message)))
+                    (update :db update-db-fx)
                     (assoc :save-message (dissoc enriched-message :new?)))
 
-          command 
+          command
           (update :dispatch-n concat [[:request-command-message-data enriched-message :short-preview]
                                       [:request-command-preview enriched-message]])
 

src/status_im/chat/models.cljs

@@ -1,5 +1,6 @@
 (ns status-im.chat.models
-  (:require [status-im.ui.components.styles :as styles]))
+  (:require [status-im.ui.components.styles :as styles]
+            [status-im.utils.gfycat.core :as gfycat]))
 
 (defn set-chat-ui-props
   "Updates ui-props in active chat by merging provided kvs into them"
@@ -12,10 +13,10 @@
   (update-in db [:chat-ui-props current-chat-id ui-element] not))
 
 (defn- create-new-chat
-  [{:keys [db gfy-generator now]} chat-id chat-props]
-  (let [{:keys [name whisper-identity]} (get-in db [:contacts/contacts chat-id])]
+  [{:keys [db now] :as cofx} chat-id chat-props]
+  (let [name (get-in db [:contacts/contacts chat-id :name])]
     (merge {:chat-id    chat-id
-            :name       (or name (gfy-generator whisper-identity))
+            :name       (or name (gfycat/generate-gfy chat-id))
             :color      styles/default-chat-color
             :group-chat false
             :is-active  true
@@ -34,15 +35,20 @@
             (update :chats assoc chat-id new-chat))
       :save-chat new-chat})))
 
+;; TODO (yenda): there should be an option to update the timestamp
+;; this shouldn't need a specific function like `upsert-chat` which
+;; is wrongfuly named
 (defn update-chat
   "Updates chat properties, if chat is not present in db, creates a default new one"
-  [{:keys [db get-stored-chat]} {:keys [chat-id] :as chat}]
+  [{:keys [db get-stored-chat] :as cofx} {:keys [chat-id] :as chat}]
   (let [chat (merge (or (get-stored-chat chat-id)
-                        (create-new-chat db chat-id {}))
+                        (create-new-chat cofx chat-id {}))
                     chat)]
     {:db        (update-in db [:chats chat-id] merge chat)
      :save-chat chat}))
 
+;; TODO (yenda): an upsert is suppose to add the entry if it doesn't
+;; exist and update it if it does
 (defn upsert-chat
   "Just like `update-chat` only implicitely updates timestamp"
   [cofx chat]