Fix #1886 (#1894)

* Fix #1886

Completly rework the way how async handlers work

Delay further processing of message till async handler returns result

* Fix indent

* Fix #1903

resources/js/bots/wallet/bot.js

@@ -352,26 +352,27 @@ function handleSend(params, context) {
         gasPrice: calculateGasPrice(params["bot-db"]["sliderValue"])
     };
 
-
     web3.eth.sendTransaction(data, function(error, hash) {
         if (error) {
-            status.sendSignal("handler-data", {
+            status.sendSignal("handler-result", {
                 status: "failed", 
-                messageId: context["message-id"],
-                error: error
+                error: {
+                    markup: status.components.validationMessage(
+                        I18n.t('validation_tx_title'),
+                        I18n.t('validation_tx_failed')
+                    )
+                },
+                origParams: context["orig-params"]
             });
         } else {
-            status.sendSignal("handler-data", {
-                status: "sent",
-                messageId: context["message-id"],
-                hash: hash
+            status.sendSignal("handler-result", {
+                status: "success",
+                hash: hash,
+                origParams: context["orig-params"]
             });
         } 
     });
-
-    return {
-        status: 'not-confirmed'
-    }; 
+    // async handler, so we don't return anything immediately
 }
 
 function previewSend(params, context) {
@@ -450,36 +451,6 @@ function previewSend(params, context) {
         markup = [firstRow];
     }
     
-    if (!(context["handler-data"]
-          && context["handler-data"]["status"] === "sent")) {
-        var pendingRow = status.components.text(
-            {
-                style: {
-                    color: "#9199a0",
-                    fontSize: 12,
-                    lineHeight: 18
-                }
-            },
-            I18n.t('send_transaction_pending')
-        ); 
-        markup.push(pendingRow);
-    }
-
-    if (context["handler-data"] 
-        && context["handler-data"]["status"] === "failed") {
-        var errorRow = status.components.text(
-            {
-                style: {
-                    color: "red",
-                    fontSize: 12,
-                    lineHeight: 18
-                }
-            },
-            I18n.t('send_transaction_failed')
-        );
-        markup.push(errorRow);
-    }
-    
     return {
         markup: status.components.view(
             {
@@ -512,6 +483,7 @@ var send = {
     params: paramsSend,
     validator: validateSend,
     handler: handleSend,
+    asyncHandler: true,
     preview: previewSend,
     shortPreview: shortPreviewSend
 };

resources/js/bots/wallet/translations.js

@@ -14,8 +14,6 @@ I18n.translations = {
         send_explanation_3: 'probably within 30 seconds.',
         send_explanation_4: 'probably within a few seconds.',
         send_sending_to: 'to ',
-        send_transaction_pending: 'transaction pending',
-        send_transaction_failed: 'transaction failed',
 
         eth: 'ETH',
 
@@ -25,6 +23,8 @@ I18n.translations = {
         request_requesting_from: 'from ',
 
         validation_title: 'Amount',
+        validation_tx_title: 'Transaction',
+        validation_tx_failed: 'Transaction failed',
         validation_amount_specified: 'Amount must be specified',
         validation_invalid_number: 'Amount is not valid number',
         validation_amount_is_too_small: 'Amount is too precise. The smallest unit you can send is 1 Wei (1x10^-18 ETH)',

resources/js/status.js

@@ -27,6 +27,7 @@ Command.prototype.create = function (com) {
     this.description = com.description;
     this.handler = com.handler;
     this["has-handler"] = com.handler != null;
+    this["async-handler"] = (com.handler != null) && com.asyncHandler
     this["registered-only"] = com.registeredOnly;
     this.validator = com.validator;
     this.color = com.color;
@@ -41,6 +42,7 @@ Command.prototype.create = function (com) {
     this["execute-immediately?"] = com.executeImmediately;
     this["sequential-params"] = com.sequentialParams;
     this["hide-send-button"] = com.hideSendButton;
+    
     this.addToCatalog();
 
     return this;

src/status_im/chat/events/commands.cljs

@@ -13,14 +13,13 @@
 
 (defn generate-context
   "Generates context for jail call"
-  [{:keys [chats handler-data] :accounts/keys [current-account-id]} message-id chat-id to group-id]
+  [{:keys [chats] :accounts/keys [current-account-id]} chat-id to group-id]
   (merge {:platform     platform/platform
           :from         current-account-id
           :to           to
           :chat         {:chat-id    chat-id
                          :group-chat (or (get-in chats [chat-id :group-chat])
-                                         (not (nil? group-id)))}
-          :handler-data (get handler-data message-id)}
+                                         (not (nil? group-id)))}}
          i18n/delimeters))
 
 ;;;; Coeffects
@@ -70,7 +69,7 @@
   [trim-v]
   (fn [{:keys [db]}
        [{{:keys [command content-command params type]} :content
-        :keys [chat-id jail-id group-id message-id] :as message}
+         :keys [chat-id jail-id group-id message-id handler-data] :as message}
         data-type]]
     (let [{:keys          [chats]
            :accounts/keys [current-account-id]
@@ -85,7 +84,7 @@
                              data-type]
               to            (get-in contacts [chat-id :address])
               jail-params   {:parameters params
-                            :context (generate-context db message-id chat-id to group-id)}]
+                             :context (generate-context db chat-id to group-id)}]
           {:chat-fx/call-jail {:jail-id                 jail-id
                                :path                    path
                                :params                  jail-params

src/status_im/chat/handlers/send_message.cljs

@@ -107,20 +107,9 @@
                 params'  (assoc params :command content')]
             (dispatch [:prepare-command! wallet-chat-id params'])))))))
 
-(register-handler ::check-preview-refetch
-  (fn [db [_ chat-id {:keys [message-id] :as message}]]
-    (let [handler-data (get-in db [:handler-data message-id])]                
-      (if (:fetch-preview handler-data)
-        (do (dispatch [:request-command-data (assoc message :jail-id chat-id) :preview])
-            (handler-data/save-data {:message-id message-id
-                                     :data (dissoc handler-data :fetch-preview)})
-            (update-in db [:handler-data message-id] dissoc :fetch-preview))
-        db))))
-
 (register-handler ::send-command!
   (u/side-effect!
     (fn [_ [_ add-to-chat-id params hidden-params]] 
-      (dispatch [::check-preview-refetch add-to-chat-id (:command params)])
       (dispatch [::add-command add-to-chat-id params])
       (dispatch [::save-command! add-to-chat-id params hidden-params])
       (when (not= add-to-chat-id wallet-chat-id)
@@ -163,11 +152,15 @@
             to           (get-in contacts [chat-id :address])
             identity     (or owner-id bot chat-id)
             bot-db       (get bot-db (or bot chat-id))
+            ;; TODO what's actually semantic difference between `:parameters` and `:context`
+            ;; and do we have some clear API for both ? seems very messy and unorganized now
             jail-params  {:parameters params
-                          :context    {:from            address
+                          :context    (cond-> {:from            address
                                                :to              to
                                                :current-account (get accounts current-account-id)
-                                       :message-id      id}}]
+                                               :message-id      id}
+                                        (:async-handler command)
+                                        (assoc :orig-params orig-params))}] 
         (dispatch
           [:check-and-load-commands!
            identity
@@ -175,8 +168,11 @@
               {:jail-id  identity
                :path     [handler-type name :handler]
                :params   jail-params
-               :callback (fn [res]
-                           (dispatch [:command-handler! chat-id orig-params res]))})])))))
+               :callback (if (:async-handler command) ; async handler, we ignore return value
+                           (fn [_]
+                             (log/debug "Async command handler called"))
+                           (fn [res]
+                             (dispatch [:command-handler! chat-id orig-params res])))})])))))
 
 (register-handler :prepare-message
   (u/side-effect!

src/status_im/commands/events/jail.cljs

@@ -1,31 +0,0 @@
-(ns status-im.commands.events.jail
-  (:require [re-frame.core :as re-frame]
-            [status-im.utils.handlers :as handlers]
-            [status-im.data-store.handler-data :as handler-data]
-            [taoensso.timbre :as log]))
-
-(re-frame/reg-fx
-  :save-handler-data
-  (fn [data]
-    (handler-data/save-data data)))
-
-(handlers/register-handler-fx
-  :set-handler-data
-  [re-frame/trim-v]
-  (fn [{:keys [db]} [chat-id {:keys [messageId] :as data}]]
-    (let [;; this is very bad, we should refactor our db ASAP
-          message          (->> (get-in db [:chats chat-id :messages])
-                                (filter #(= (:message-id %) messageId))
-                                first)
-          handler-data     (cond-> (dissoc data :messageId)
-                             ;; message not there yet, indicate we want to re-fetch preview once it lands there
-                             (nil? message)
-                             (assoc :fetch-preview true))
-          old-handler-data (get-in db [:handler-data messageId] {})
-          new-handler-data (merge old-handler-data handler-data)]
-      (cond-> {:db (assoc-in db [:handler-data messageId] new-handler-data)
-               :save-handler-data {:message-id messageId
-                                   :data new-handler-data}}
-        ;; message was already added to db, we can re-fetch preview
-        (not (nil? message))
-        (assoc :dispatch [:request-command-data (assoc message :jail-id chat-id) :preview])))))

src/status_im/commands/handlers/jail.cljs

@@ -10,14 +10,13 @@
             [status-im.constants :refer [console-chat-id]]
             [status-im.i18n :refer [get-contact-translated]]
             [taoensso.timbre :as log] 
-            [status-im.data-store.local-storage :as local-storage]
-            status-im.commands.events.jail))
+            [status-im.data-store.local-storage :as local-storage]))
 
 (defn command-handler!
   [_ [chat-id
       {:keys [command] :as params}
       {:keys [result error]}]]
-  (let [{:keys [context returned]} result
+  (let [{:keys [returned]} result
         {handler-error :error} returned]
     (cond
       handler-error
@@ -27,9 +26,7 @@
       result
       (let [command' (assoc command :handler-data returned)
             params'  (assoc params :command command')] 
-        (if (:eth_sendTransaction context)
-          (dispatch [:wait-for-transaction (:id command) params'])
-          (dispatch [:prepare-command! chat-id params'])))
+        (dispatch [:prepare-command! chat-id params']))
 
       (not (or error handler-error))
       (dispatch [:prepare-command! chat-id params])

src/status_im/ui/screens/events.cljs

@@ -219,7 +219,10 @@
                                                                  :markup  data}])
       "send-message" (dispatch [:send-message-from-jail {:chat-id chat_id
                                                          :message data}])
-      "handler-data" (dispatch [:set-handler-data chat_id data]) 
+      "handler-result" (let [orig-params (:origParams data)]
+                         ;; TODO(janherich): figure out and fix chat_id from event
+                         (dispatch [:command-handler! (:chat-id orig-params) orig-params
+                                    {:result {:returned (dissoc data :origParams)}}])) 
       (log/debug "Unknown jail signal " type))))
 
 (register-handler-fx