kivy: show warning if request/invoice exceeds channel capacity

electrum/gui/kivy/main_window.py

@@ -221,7 +221,7 @@ class ElectrumWindow(App):
             return
         self.update_tab('receive')
         if self.request_popup and self.request_popup.key == key:
-            self.request_popup.set_status(status)
+            self.request_popup.update_status()
         if status == PR_PAID:
             self.show_info(_('Payment Received') + '\n' + key)
             self._trigger_update_history()
@@ -234,7 +234,7 @@ class ElectrumWindow(App):
         # todo: update single item
         self.update_tab('send')
         if self.invoice_popup and self.invoice_popup.key == key:
-            self.invoice_popup.set_status(status)
+            self.invoice_popup.update_status()
         if status == PR_PAID:
             self.show_info(_('Payment was sent'))
             self._trigger_update_history()
@@ -445,7 +445,6 @@ class ElectrumWindow(App):
         request = self.wallet.get_request(key)
         data = request['invoice'] if is_lightning else request['URI']
         self.request_popup = RequestDialog('Request', data, key, is_lightning=is_lightning)
-        self.request_popup.set_status(request['status'])
         self.request_popup.open()
 
     def show_invoice(self, is_lightning, key):
@@ -453,10 +452,8 @@ class ElectrumWindow(App):
         invoice = self.wallet.get_invoice(key)
         if not invoice:
             return
-        status = invoice['status']
         data = invoice['invoice'] if is_lightning else key
         self.invoice_popup = InvoiceDialog('Invoice', data, key)
-        self.invoice_popup.set_status(status)
         self.invoice_popup.open()
 
     def qr_dialog(self, title, data, show_text=False, text_for_clipboard=None):

electrum/gui/kivy/uix/dialogs/invoice_dialog.py

@@ -7,8 +7,8 @@ from kivy.app import App
 from kivy.clock import Clock
 
 from electrum.gui.kivy.i18n import _
-from electrum.util import pr_tooltips, pr_color
+from electrum.util import pr_tooltips, pr_color, get_request_status
-from electrum.util import PR_UNKNOWN, PR_UNPAID, PR_FAILED
+from electrum.util import PR_UNKNOWN, PR_UNPAID, PR_FAILED, PR_TYPE_LN
 
 if TYPE_CHECKING:
     from electrum.gui.kivy.main_window import ElectrumWindow
@@ -17,10 +17,12 @@ if TYPE_CHECKING:
 Builder.load_string('''
 <InvoiceDialog@Popup>
     id: popup
+    amount: 0
     title: ''
     data: ''
     status_color: 1,1,1,1
     status_str:''
+    warning: ''
     can_pay: True
     shaded: False
     show_text: False
@@ -33,9 +35,14 @@ Builder.load_string('''
             spacing: '10dp'
             TopLabel:
                 text: root.data
+            TopLabel:
+                text: _('Amount') + ': ' + app.format_amount_and_units(root.amount)
             TopLabel:
                 text: _('Status') + ': ' + root.status_str
                 color: root.status_color
+            TopLabel:
+                warning: root.warning
+                color: (0.9, 0.6, 0.3, 1)
             Widget:
                 size_hint: 1, 0.2
             BoxLayout:
@@ -73,12 +80,19 @@ class InvoiceDialog(Factory.Popup):
         self.title = title
         self.data = data
         self.key = key
+        r = self.app.wallet.get_invoice(key)
+        self.amount = r.get('amount')
+        self.is_lightning = r.get('type') == PR_TYPE_LN
+        self.update_status()
 
-    def set_status(self, status):
+    def update_status(self):
-        self.status = status
+        req = self.app.wallet.get_invoice(self.key)
-        self.status_str = pr_tooltips[status]
+        self.status, self.status_str = get_request_status(req)
-        self.status_color = pr_color[status]
+        self.status_color = pr_color[self.status]
-        self.can_pay = self.status in[PR_UNPAID, PR_FAILED]
+        self.can_pay = self.status in [PR_UNPAID, PR_FAILED]
+        if self.can_pay and self.is_lightning and self.app.wallet.lnworker:
+            if self.amount and self.amount > self.app.wallet.lnworker.can_send():
+                self.warning = _('Warning') + ': ' + _('This amount exceeds the maximum you can currently send with your channels')
 
     def on_dismiss(self):
         self.app.request_popup = None

electrum/gui/kivy/uix/dialogs/request_dialog.py

@@ -5,15 +5,17 @@ from kivy.app import App
 from kivy.clock import Clock
 
 from electrum.gui.kivy.i18n import _
-from electrum.util import pr_tooltips, pr_color
+from electrum.util import pr_tooltips, pr_color, get_request_status
-from electrum.util import PR_UNKNOWN
+from electrum.util import PR_UNKNOWN, PR_UNPAID, PR_FAILED, PR_TYPE_LN
 
 
 Builder.load_string('''
 <RequestDialog@Popup>
     id: popup
+    amount: 0
     title: ''
     data: ''
+    warning: ''
     status_str: ''
     status_color: 1,1,1,1
     shaded: False
@@ -34,9 +36,14 @@ Builder.load_string('''
                     if self.collide_point(*touch.pos): self.shaded = not self.shaded
             TopLabel:
                 text: root.data
+            TopLabel:
+                text: _('Amount') + ': ' + app.format_amount_and_units(root.amount)
             TopLabel:
                 text: _('Status') + ': ' + root.status_str
                 color: root.status_color
+            TopLabel:
+                text: root.warning
+                color: (0.9, 0.6, 0.3, 1)
             Widget:
                 size_hint: 1, 0.2
             BoxLayout:
@@ -73,7 +80,10 @@ class RequestDialog(Factory.Popup):
         self.title = title
         self.data = data
         self.key = key
-        self.is_lightning = is_lightning
+        r = self.app.wallet.get_request(key)
+        self.amount = r.get('amount')
+        self.is_lightning = r.get('type') == PR_TYPE_LN
+        self.update_status()
 
     def on_open(self):
         data = self.data
@@ -83,10 +93,13 @@ class RequestDialog(Factory.Popup):
             data = data.upper()
         self.ids.qr.set_data(data)
 
-    def set_status(self, status):
+    def update_status(self):
-        self.status = status
+        req = self.app.wallet.get_request(self.key)
-        self.status_str = pr_tooltips[status]
+        self.status, self.status_str = get_request_status(req)
-        self.status_color = pr_color[status]
+        self.status_color = pr_color[self.status]
+        if self.status == PR_UNPAID and self.is_lightning and self.app.wallet.lnworker:
+            if self.amount and self.amount > self.app.wallet.lnworker.can_receive():
+                self.warning = _('Warning') + ': ' + _('This amount exceeds the maximum you can currently receive with your channels')
 
     def on_dismiss(self):
         self.app.request_popup = None