Determinstic secrets / ecash restore (#131)

* first working version but some sats go missing

* back at it

* make format

* restore to main

* move mint database

* fix some tests

* make format

* remove old _construct_outputs we reintroduced in merge with main

* add type annotations

* add wallet private key to tests

* wallet: load proofs

* fix tests

* _generate_secrets with deterministic generation (temporary)

* allow wallet initialization with custom private key

* add pk to wallet api test

* mint scope=module

* remove private_key from test_wallet.py to see if it helps with the github tests

* readd private keys to tests

* workflow without env

* add more private key!

* readd env

* ledger scope session

* add default private key for testing

* generate private keys if not available

* testing

* its working!!!

* first iteration of bip32 working

* get mint info and add many type annotations

* tests

* fix tests with bip32

* restore from multiple mints

* disable profiler

* make format

* failed POST /mint do not increment secret counter

* store derivation path in each token

* fix tests

* refactor migrations so private keys can be generated by the wallet with .with_db() classmethod

* start fixing tests

* all tests passing except those that need to set a specific private key

* bip39 mnemonic to seed - with db but restore doesnt work yet with custom seed

* mnemonic restore works

* enter mnemonic in cli

* fix tests to use different mnemonic

* properly ask user for seed input

* tests: dont ask for inputs

* try to fix tests

* fix cashu -d

* fixing

* bump version and add more text to mnemonic enter

* add more comments

* add many more comments and type annotations in the wallet

* dont print generated mnemonic and dont wait for input

* fix test

* does this fix tests?

* sigh....

* make format

* do not restore from an initialized wallet

* fix mnemonics

* fix nitpicks

* print wallet name if nonstandard wallet

* fix merge error and remove comments

* poetry lock and requirements

* remove unused code

* fix tests

* mnemonic.lower() and add keyset id if not present for backwards compat

* edit comment

cashu/wallet/helpers.py

@@ -1,23 +1,27 @@
 import base64
 import json
 import os
-from typing import List, Optional
 
-import click
 from loguru import logger
 
 from ..core.base import TokenV1, TokenV2, TokenV3, TokenV3Token
+from ..core.db import Database
 from ..core.helpers import sum_proofs
 from ..core.migrations import migrate_databases
 from ..core.settings import settings
 from ..wallet import migrations
-from ..wallet.crud import get_keyset, get_unused_locks
-from ..wallet.wallet import Wallet as Wallet
+from ..wallet.crud import get_keyset
+from ..wallet.wallet import Wallet
+
+
+async def migrate_wallet_db(db: Database):
+    await migrate_databases(db, migrations)
 
 
 async def init_wallet(wallet: Wallet, load_proofs: bool = True):
     """Performs migrations and loads proofs from db."""
-    await migrate_databases(wallet.db, migrations)
+    await wallet._migrate_database()
+    await wallet._init_private_key()
     if load_proofs:
         await wallet.load_proofs(reload=True)
 
@@ -31,7 +35,9 @@ async def redeem_TokenV3_multimint(wallet: Wallet, token: TokenV3):
         assert t.mint, Exception(
             "redeem_TokenV3_multimint: multimint redeem without URL"
         )
-        mint_wallet = Wallet(t.mint, os.path.join(settings.cashu_dir, wallet.name))
+        mint_wallet = await Wallet.with_db(
+            t.mint, os.path.join(settings.cashu_dir, wallet.name)
+        )
         keysets = mint_wallet._get_proofs_keysets(t.proofs)
         logger.debug(f"Keysets in tokens: {keysets}")
         # loop over all keysets
@@ -130,7 +136,7 @@ async def receive(
         assert mint_keysets, Exception("we don't know this keyset")
         assert mint_keysets.mint_url, Exception("we don't know this mint's URL")
         # now we have the URL
-        mint_wallet = Wallet(
+        mint_wallet = await Wallet.with_db(
             mint_keysets.mint_url,
             os.path.join(settings.cashu_dir, wallet.name),
         )