fixed Empty Gas limit and Gas price

Signed-off-by: Andrey Shovkoplyas <motor4ik@gmail.com>

src/status_im/constants.cljs

@@ -26,6 +26,8 @@
 
 (def default-network config/default-network)
 
+(def contract-address "0x0000000000000000000000000000000000000000")
+
 (def default-wallet-transactions
   {:filters
    {:type [{:id :inbound   :label (i18n/label :t/incoming)  :checked? true}

src/status_im/translations/en.cljs

@@ -438,6 +438,7 @@
    :receive-transaction                  "Receive transaction"
    :new-transaction                      "New Transaction"
    :transaction-history                  "Transaction History"
+   :new-contract                         "New Contract"
 
    ;; Wallet Send
    :wallet-choose-recipient              "Choose Recipient"

src/status_im/ui/screens/wallet/events.cljs

@@ -9,7 +9,8 @@
             [status-im.utils.prices :as prices]
             [status-im.utils.transactions :as transactions]
             [taoensso.timbre :as log]
-            status-im.ui.screens.wallet.request.events))
+            status-im.ui.screens.wallet.request.events
+            [status-im.utils.money :as money]))
 
 (defn get-balance [{:keys [web3 account-id on-success on-error]}]
   (if (and web3 account-id)
@@ -84,6 +85,11 @@
   (fn [{:keys [web3 success-event edit?]}]
     (ethereum/gas-price web3 #(re-frame/dispatch [success-event %2 edit?]))))
 
+(reg-fx
+  :update-estimated-gas
+  (fn [{:keys [web3 obj success-event]}]
+    (ethereum/estimate-gas-web3 web3 (clj->js obj) #(re-frame/dispatch [success-event %2]))))
+
 ;; Handlers
 
 (handlers/register-handler-fx
@@ -220,6 +226,18 @@
   (fn [db [_ price edit?]]
     (assoc-in db [:wallet (if edit? :edit :send-transaction) :gas-price] price)))
 
+(handlers/register-handler-fx
+  :wallet/update-estimated-gas
+  (fn [{:keys [db]} [_ obj]]
+    {:update-estimated-gas {:web3          (:web3 db)
+                            :obj           obj
+                            :success-event :wallet/update-estimated-gas-success}}))
+
+(handlers/register-handler-db
+  :wallet/update-estimated-gas-success
+  (fn [db [_ gas]]
+    (assoc-in db [:wallet :send-transaction :gas] (money/bignumber gas))))
+
 (handlers/register-handler-fx
   :wallet/show-error
   (fn []

src/status_im/ui/screens/wallet/send/events.cljs

@@ -106,22 +106,31 @@
             transaction {:id         id
                          :from       from
                          :to         to
+                         :to-name    (when (= to constants/contract-address)
+                                       (i18n/label :t/new-contract))
                          :symbol     symbol
                          :value      (money/bignumber (or value 0))
                          :data       data
-                         :gas        (money/bignumber (money/to-decimal gas))
-                         :gas-price  (money/bignumber (money/to-decimal gasPrice))
+                         :gas        (when (seq gas)
+                                       (money/bignumber (money/to-decimal gas)))
+                         :gas-price  (when (seq gasPrice)
+                                       (money/bignumber (money/to-decimal gasPrice)))
                          :timestamp  now
                          :message-id message_id}
-            sending-from-chat? (not (get-in db [:wallet :send-transaction :waiting-signal?]))
+            sending-from-bot-or-dapp? (not (get-in db [:wallet :send-transaction :waiting-signal?]))
             new-db (assoc-in db [:wallet :transactions-unsigned id] transaction)
             sending-db {:id         id
-                        :from-chat? sending-from-chat?}]
-        (if sending-from-chat?
-          ;;SENDING FROM CHAT
+                        :from-chat? sending-from-bot-or-dapp?}]
+        (if sending-from-bot-or-dapp?
+          ;;SENDING FROM BOT (CHAT) OR DAPP
           {:db         (assoc-in new-db [:wallet :send-transaction] sending-db) ; we need to completely reset sending state here
-           :dispatch-n [[:update-wallet (map :symbol (tokens/tokens-for (ethereum/network->chain-keyword (:network db))))] [:navigate-to-modal :wallet-send-transaction-modal]]}
-          ;;SEND SCREEN WAITING SIGNAL
+           :dispatch-n [[:update-wallet (map :symbol (tokens/tokens-for (ethereum/network->chain-keyword (:network db))))]
+                        [:navigate-to-modal :wallet-send-transaction-modal]
+                        (when-not (seq gas)
+                          [:wallet/update-estimated-gas transaction])
+                        (when-not (seq gasPrice)
+                          [:wallet/update-gas-price])]}
+          ;;WALLET SEND SCREEN WAITING SIGNAL
           (let [{:keys [later? password]} (get-in db [:wallet :send-transaction])
                 new-db' (update-in new-db [:wallet :send-transaction] merge sending-db)] ; just update sending state as we are in wallet flow
             (if later?

src/status_im/ui/screens/wallet/send/subs.cljs

@@ -58,7 +58,9 @@
     (when-let [unsigned-transaction (get unsigned-transactions
                                          (:id send-transaction))]
       (merge send-transaction
-             unsigned-transaction))))
+             unsigned-transaction
+             {:gas       (or (:gas unsigned-transaction) (:gas send-transaction))
+              :gas-price (or (:gas-price unsigned-transaction) (:gas-price send-transaction))}))))
 
 (re-frame/reg-sub :wallet/edit
   :<- [:wallet]

src/status_im/utils/ethereum/core.cljs

@@ -87,6 +87,9 @@
 (defn gas-price [web3 cb]
   (.getGasPrice (.-eth web3) cb))
 
+(defn estimate-gas-web3 [web3 obj cb]
+  (.estimateGas (.-eth web3) obj cb))
+
 (defn estimate-gas [symbol]
   (if (tokens/ethereum? symbol)
     default-transaction-gas