From f955cb3d9c7f1cd01ace0b4229bda9f1eb7b6129 Mon Sep 17 00:00:00 2001
From: Pablo Greco <psgreco@gmail.com>
Date: Sun, 28 Nov 2021 13:20:14 +0000
Subject: [PATCH] liquidtestnet: Add chainparams

---
 src/chainparams.cpp     | 41 +++++++++++++++++++++++++++++++++++++++++
 src/chainparamsbase.cpp |  3 +++
 src/chainparamsbase.h   |  1 +
 3 files changed, 45 insertions(+)

diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 66373a0787..32c9f810ed 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -945,6 +945,45 @@ public:
     }
 };
 
+/**
+ * Liquid testnet (customparams with a few defaults).
+ */
+class CLiquidTestNetParams : public CCustomParams {
+public:
+    CLiquidTestNetParams(const std::string& chain, const ArgsManager& args) : CCustomParams(chain, args)
+    {
+        strNetworkID = chain;
+        // not a debug chain
+        fDefaultConsistencyChecks = false;
+
+        initialFreeCoins = 2100000000000000;
+        anyonecanspend_aremine = false;
+        consensus.max_block_signature_size = 150;
+        consensus.dynamic_epoch_length = 1000;
+
+        // no parent chain by default
+        consensus.has_parent_chain = false;
+        parentGenesisBlockHash = uint256();
+
+        bech32_hrp = "tex";
+        blech32_hrp = "tlq";
+
+        base58Prefixes[PUBKEY_ADDRESS]  = std::vector<unsigned char>(1, 36);
+        base58Prefixes[SCRIPT_ADDRESS]  = std::vector<unsigned char>(1, 19);
+        base58Prefixes[BLINDED_ADDRESS] = std::vector<unsigned char>(1, 23);
+        base58Prefixes[SECRET_KEY]      = std::vector<unsigned char>(1, base58Prefixes[SECRET_KEY][0]);
+
+        // disable automatic dynafed
+        consensus.vDeployments[Consensus::DEPLOYMENT_DYNA_FED].nStartTime = 0;
+
+        default_magic_str = "410EDD62";
+        default_signblockscript = "51210217e403ddb181872c32a0cd468c710040b2f53d8cac69f18dad07985ee37e9a7151ae";
+        UpdateFromArgs(args);
+        SetGenesisBlock();
+        consensus.hashGenesisBlock = genesis.GetHash();
+    }
+};
+
 /**
  * Liquid v1
  */
@@ -1486,6 +1525,8 @@ std::unique_ptr<const CChainParams> CreateChainParams(const ArgsManager& args, c
         return std::unique_ptr<CChainParams>(new CLiquidV1Params());
     } else if (chain == CBaseChainParams::LIQUID1TEST) {
         return std::unique_ptr<CChainParams>(new CLiquidV1TestParams(args));
+    } else if (chain == CBaseChainParams::LIQUIDTESTNET) {
+        return std::unique_ptr<CChainParams>(new CLiquidTestNetParams(chain, args));
     }
 
     return std::unique_ptr<CChainParams>(new CCustomParams(chain, args));
diff --git a/src/chainparamsbase.cpp b/src/chainparamsbase.cpp
index b79ba9685d..35aa921cd9 100644
--- a/src/chainparamsbase.cpp
+++ b/src/chainparamsbase.cpp
@@ -16,6 +16,7 @@ const std::string CBaseChainParams::SIGNET = "signet";
 const std::string CBaseChainParams::REGTEST = "regtest";
 const std::string CBaseChainParams::LIQUID1 = "liquidv1";
 const std::string CBaseChainParams::LIQUID1TEST = "liquidv1test";
+const std::string CBaseChainParams::LIQUIDTESTNET = "liquidtestnet";
 
 const std::string CBaseChainParams::DEFAULT = CBaseChainParams::LIQUID1;
 
@@ -89,6 +90,8 @@ std::unique_ptr<CBaseChainParams> CreateBaseChainParams(const std::string& chain
         return std::make_unique<CBaseChainParams>("liquidv1", 7041, 8332, 37041);
     } else if (chain == CBaseChainParams::LIQUID1TEST) {
         return std::make_unique<CBaseChainParams>("liquidv1test", 7040, 18332, 37040);  // Use same ports as customparams
+    } else if (chain == CBaseChainParams::LIQUIDTESTNET) {
+        return std::make_unique<CBaseChainParams>(chain, 7039, 18331, 37039);
     }
 
     // ELEMENTS:
diff --git a/src/chainparamsbase.h b/src/chainparamsbase.h
index edbea7e02c..5ba4677ef3 100644
--- a/src/chainparamsbase.h
+++ b/src/chainparamsbase.h
@@ -25,6 +25,7 @@ public:
     static const std::string REGTEST;
     static const std::string LIQUID1;
     static const std::string LIQUID1TEST;
+    static const std::string LIQUIDTESTNET;
     ///@}
 
     static const std::string DEFAULT;