nem: mosaics definitions are generated from trezor-common

src/apps/nem/mosaic/helpers.py

@@ -0,0 +1,15 @@
+from .nem_mosaics import mosaics
+
+
+def get_mosaic_definition(namespace_name: str, mosaic_name: str, network: int):
+    for m in mosaics:
+        if namespace_name == m["namespace"] and mosaic_name == m["mosaic"]:
+            if ("networks" not in m) or (network in m["networks"]):
+                return m
+    return None
+
+
+def is_nem_xem_mosaic(namespace_name: str, mosaic_name: str):
+    if namespace_name == "nem" and mosaic_name == "xem":
+        return True
+    return False

src/apps/nem/mosaic/nem_mosaics.py

@@ -1,19 +1,4 @@
-# todo move to common and generate via script
-
-
-def get_mosaic_definition(namespace_name: str, mosaic_name: str, network: int):
-    for m in mosaics:
-        if namespace_name == m["namespace"] and mosaic_name == m["mosaic"]:
-            if ("networks" not in m) or (network in m["networks"]):
-                return m
-    return None
-
-
-def is_nem_xem_mosaic(namespace_name: str, mosaic_name: str):
-    if namespace_name == "nem" and mosaic_name == "xem":
-        return True
-    return False
-
+# generated using gen_nem_mosaics.py from trezor-common nem_mosaics.json - do not edit directly!
 
 mosaics = [
     {
@@ -21,7 +6,7 @@ mosaics = [
         "ticker": " XEM",
         "namespace": "nem",
         "mosaic": "xem",
-        "divisibility": 6
+        "divisibility": 6,
     },
     {
         "name": "DIMCOIN",
@@ -33,7 +18,7 @@ mosaics = [
         "fee": 10,
         "levy_namespace": "dim",
         "levy_mosaic": "coin",
-        "networks": [ 104 ]
+        "networks": [104],
     },
     {
         "name": "DIM TOKEN",
@@ -41,7 +26,7 @@ mosaics = [
         "namespace": "dim",
         "mosaic": "token",
         "divisibility": 6,
-        "networks": [ 104 ]
+        "networks": [104],
     },
     {
         "name": "Breeze Token",
@@ -49,7 +34,7 @@ mosaics = [
         "namespace": "breeze",
         "mosaic": "breeze-token",
         "divisibility": 0,
-        "networks": [ 104 ]
+        "networks": [104],
     },
     {
         "name": "PacNEM Game Credits",
@@ -57,7 +42,7 @@ mosaics = [
         "namespace": "pacnem",
         "mosaic": "heart",
         "divisibility": 0,
-        "networks": [ 104 ]
+        "networks": [104],
     },
     {
         "name": "PacNEM Score Tokens",
@@ -69,6 +54,6 @@ mosaics = [
         "fee": 100,
         "levy_namespace": "nem",
         "levy_mosaic": "xem",
-        "networks": [ 104 ]
-    }
+        "networks": [104],
+    },
 ]

src/apps/nem/transfer/layout.py

@@ -1,5 +1,5 @@
 from apps.nem.layout import *
-from apps.nem.mosaic.definitions import *
+from apps.nem.mosaic.helpers import *
 from trezor.messages import NEMImportanceTransferMode
 from trezor.messages import NEMTransfer
 from trezor.messages import NEMImportanceTransfer

tests/test_apps.nem.mosaic.py

@@ -1,6 +1,6 @@
 from common import *
 from apps.nem.transfer import *
-from apps.nem.mosaic.definitions import get_mosaic_definition
+from apps.nem.mosaic.helpers import get_mosaic_definition
 
 
 class TestNemMosaic(unittest.TestCase):

tools/codegen/gen_nem_mosaics.py

@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+import json
+
+
+def format_str(value):
+    return '"' + value + '"'
+
+
+def format_primitive(value):
+    if isinstance(value, int):
+        return value
+    elif isinstance(value, str):
+        return format_str(value)
+    elif isinstance(value, list):
+        return value
+    else:
+        raise TypeError
+
+
+fields = [
+    'name',
+    'ticker',
+    'namespace',
+    'mosaic',
+    'divisibility',
+    'levy',
+    'fee',
+    'levy_namespace',
+    'levy_mosaic',
+    'networks',
+]
+
+mosaics = json.load(open('../../vendor/trezor-common/defs/nem/nem_mosaics.json', 'r'))
+
+print('# generated using gen_nem_mosaics.py from trezor-common nem_mosaics.json - do not edit directly!')
+print('')
+print('mosaics = [')
+for m in mosaics:
+    print('    {')
+    for name in fields:
+        if name in m:
+            print('        %s: %s,' % (format_str(name), format_primitive(m[name])))
+        # else:
+        #     print('        %s: None,' % format_str(name))
+    print('    },')
+print(']')