From 36c6021ce20363ca34bcf7709e6f85e139710efe Mon Sep 17 00:00:00 2001
From: The MMGen Project <mmgen@tuta.io>
Date: Tue, 5 Oct 2021 11:57:34 +0000
Subject: [PATCH] regtest: create miner wallet from hardcoded seed (BTC-only)

---
 mmgen/regtest.py | 19 +++++++++++++++++++
 mmgen/rpc.py     |  8 ++++----
 2 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/mmgen/regtest.py b/mmgen/regtest.py
index c76d3643..8306cb75 100755
--- a/mmgen/regtest.py
+++ b/mmgen/regtest.py
@@ -39,6 +39,17 @@ def create_data_dir(data_dir):
 	try: os.makedirs(data_dir)
 	except: pass
 
+def create_hdseed(proto):
+	# cTqgRxqSER1iZ4SoUKhaXUF3PzEADyhjHPXf19KW78GGGW7RxSWz hdseed=1
+	#   addr=bcrt1q2lew38703pdzvq529hefsl9f9z9a3j3mxwt4f0
+	# cPNPEyVQpX5H9MKDwt73BScKvDh3Kk8MMEGowneT2RKFZ7Dfh3FL label=
+	#   addr=bcrt1qy7hwy8jx7w7lmm8v63hur5xzvqqhcyk8w85v9h hdkeypath=m/0'/0'/0'
+	from .tool import tool_api
+	t = tool_api()
+	t.init_coin(proto.coin,proto.network)
+	t.addrtype = 'bech32'
+	return t.hex2wif('babaeb1a'*8)
+
 def cliargs_convert(args):
 	def gen():
 		for arg in args:
@@ -115,9 +126,17 @@ class MMGenRegtest(MMGenObject):
 			await rpc.icall(
 				'createwallet',
 				wallet_name     = user,
+				blank           = user != 'miner' or self.coin == 'btc',
 				no_keys         = user != 'miner',
 				load_on_startup = False )
 
+		if self.coin == 'btc': # BCH,LTC refuse to set HD seed while in IBD
+			await rpc.call(
+				'sethdseed',
+				True,
+				create_hdseed(self.proto),
+				wallet = 'miner' )
+
 		await self.generate(432,silent=True)
 
 		gmsg('Setup complete')
diff --git a/mmgen/rpc.py b/mmgen/rpc.py
index 3e74a284..5d4f17ed 100755
--- a/mmgen/rpc.py
+++ b/mmgen/rpc.py
@@ -210,7 +210,7 @@ class CallSigs:
 		class bitcoin_core:
 
 			@classmethod
-			def createwallet(cls,wallet_name,no_keys=True,passphrase='',load_on_startup=True):
+			def createwallet(cls,wallet_name,no_keys=True,blank=True,passphrase='',load_on_startup=True):
 				"""
 				Quirk: when --datadir is specified (even if standard), wallet is created directly in
 				datadir, otherwise in datadir/wallets
@@ -219,7 +219,7 @@ class CallSigs:
 					'createwallet',
 					wallet_name,    # 1. wallet_name
 					no_keys,        # 2. disable_private_keys
-					no_keys,        # 3. blank (no keys or seed)
+					blank,          # 3. blank (no keys or seed)
 					passphrase,     # 4. passphrase (empty string for non-encrypted)
 					False,          # 5. avoid_reuse (track address reuse)
 					False,          # 6. descriptors (native descriptor wallet)
@@ -229,12 +229,12 @@ class CallSigs:
 		class litecoin_core(bitcoin_core):
 
 			@classmethod
-			def createwallet(cls,wallet_name,no_keys=True,passphrase='',load_on_startup=True):
+			def createwallet(cls,wallet_name,no_keys=True,blank=True,passphrase='',load_on_startup=True):
 				return (
 					'createwallet',
 					wallet_name,    # 1. wallet_name
 					no_keys,        # 2. disable_private_keys
-					no_keys,        # 3. blank (no keys or seed)
+					blank,          # 3. blank (no keys or seed)
 				)
 
 		class bitcoin_cash_node(litecoin_core): pass