From 258de87a9a53f68cfef14ffc4db4c2972c8a94eb Mon Sep 17 00:00:00 2001
From: sihamon <126967444+sihamon@users.noreply.github.com>
Date: Sun, 19 Mar 2023 15:09:03 +0100
Subject: [PATCH] Fix: Mints are sorted by balance which can suddenly change
 (#145)

* Sort mints by URL when displaying balances

* Use mint with largest balance as default when spending

* Make format

* Display mint with largest balance in prompt
---
 cashu/wallet/cli/cli_helpers.py | 26 ++++++++++++++++----------
 cashu/wallet/wallet.py          |  2 +-
 2 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/cashu/wallet/cli/cli_helpers.py b/cashu/wallet/cli/cli_helpers.py
index 2d884b3..5633056 100644
--- a/cashu/wallet/cli/cli_helpers.py
+++ b/cashu/wallet/cli/cli_helpers.py
@@ -134,17 +134,23 @@ async def get_mint_wallet(ctx: Context):
     if len(mint_balances) > 1:
         await print_mint_balances(ctx, wallet, show_mints=True)
 
-        mint_nr_str = (
-            input(f"Select mint [1-{len(mint_balances)}, press enter for default 1]: ")
-            or "1"
-        )
-        if not mint_nr_str.isdigit():
-            raise Exception("invalid input.")
-        mint_nr = int(mint_nr_str)
-    else:
-        mint_nr = 1
+        url_max = max(mint_balances, key=lambda v: mint_balances[v]["available"])
+        nr_max = list(mint_balances).index(url_max) + 1
 
-    mint_url = list(mint_balances.keys())[mint_nr - 1]
+        mint_nr_str = input(
+            f"Select mint [1-{len(mint_balances)}] or "
+            f"press enter for mint with largest balance (Mint {nr_max}): "
+        )
+        if not mint_nr_str:  # largest balance
+            mint_url = url_max
+        elif mint_nr_str.isdigit() and int(mint_nr_str) <= len(
+            mint_balances
+        ):  # specific mint
+            mint_url = list(mint_balances.keys())[int(mint_nr_str) - 1]
+        else:
+            raise Exception("invalid input.")
+    else:
+        mint_url = list(mint_balances.keys())[0]
 
     # load this mint_url into a wallet
     mint_wallet = Wallet(
diff --git a/cashu/wallet/wallet.py b/cashu/wallet/wallet.py
index b0b0fc4..f6e27d2 100644
--- a/cashu/wallet/wallet.py
+++ b/cashu/wallet/wallet.py
@@ -843,4 +843,4 @@ class Wallet(LedgerAPI):
             }
             for key, proofs in balances.items()
         }
-        return dict(sorted(balances_return.items(), key=lambda item: item[1]["available"], reverse=True))  # type: ignore
+        return dict(sorted(balances_return.items(), key=lambda item: item[0]))  # type: ignore