nem: get address formatting

src/apps/nem/get_address.py

@@ -1,7 +1,11 @@
-from apps.wallet.get_address import _show_address
-from apps.common import seed
-from trezor.messages.NEMAddress import NEMAddress
 from .validators import *
+from apps.common import seed
+from apps.common.confirm import confirm
+from trezor import ui
+from trezor.messages.NEMAddress import NEMAddress
+from trezor.messages import ButtonRequestType
+from trezor.ui.text import Text
+from trezor.utils import chunks
 
 
 async def nem_get_address(ctx, msg):
@@ -11,7 +15,35 @@ async def nem_get_address(ctx, msg):
 
     if msg.show_display:
         while True:
-            if await _show_address(ctx, address):
+            if await _show_address(ctx, address, network):
                 break
 
     return NEMAddress(address=address)
+
+
+async def _show_address(ctx, address: str, network: int):
+    lines = _split_address(address)
+    print(network)
+    content = Text('Export NEM address', ui.ICON_RECEIVE,
+                   ui.MONO, _get_network_str(network) + ' network',
+                   ui.MONO, *lines,
+                   icon_color=ui.GREEN)
+
+    return await confirm(
+        ctx,
+        content,
+        code=ButtonRequestType.Address,
+        cancel_style=ui.BTN_KEY)
+
+
+def _split_address(address: str):
+    return chunks(address, 17)
+
+
+def _get_network_str(network: int) -> str:
+    if network == NEM_NETWORK_MAINNET:
+        return 'Mainnet'
+    elif network == NEM_NETWORK_TESTNET:
+        return 'Testnet'
+    elif network == NEM_NETWORK_MIJIN:
+        return 'Mijin'

src/apps/nem/validators.py

@@ -18,7 +18,7 @@ def validate(msg: NEMSignTx):
 
     if msg.provision_namespace or msg.mosaic_creation or msg.supply_change or msg.aggregate_modification \
             or msg.importance_transfer:
-        raise ValueError('Not yet implemented')
+        raise ValueError('Not yet implemented')  # todo
 
     _validate_single_tx(msg)
     _validate_common(msg.transaction)