From b7d102ec1282fd4d73b5f65d4cacef6880be3680 Mon Sep 17 00:00:00 2001
From: tripathyr <rohit.tripathy@gmail.com>
Date: Tue, 8 Aug 2023 18:32:09 +0530
Subject: [PATCH] Taproot Outputs spend capacity

---
 scripts/btcOperator.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/scripts/btcOperator.js b/scripts/btcOperator.js
index 2abb80f..0d54c23 100644
--- a/scripts/btcOperator.js
+++ b/scripts/btcOperator.js
@@ -92,6 +92,9 @@
         },
         bech32Address: {
             value: key => coinjs.bech32Address(btcOperator.pubkey(key)).address
+        },
+        bech32mAddress: {
+            value: key => segwit_addr.encode("bc",1,key)
         }
     });
 
@@ -107,6 +110,8 @@
                 return btcOperator.segwitAddress(key) === addr;
             case "bech32":
                 return btcOperator.bech32Address(key) === addr;
+            case "bech32m":
+                return btcOperator.bech32mAddress(key) === addr; // Key is a byte array of 32 bytes    
             default:
                 return null;
         }
@@ -116,7 +121,7 @@
         if (!addr)
             return undefined;
         let type = coinjs.addressDecode(addr).type;
-        if (["standard", "multisig", "bech32", "multisigBech32"].includes(type))
+        if (["standard", "multisig", "bech32", "multisigBech32","bech32m"].includes(type))
             return type;
         else
             return false;
@@ -281,6 +286,7 @@
         BECH32_OUTPUT_SIZE = 23,
         BECH32_MULTISIG_OUTPUT_SIZE = 34,
         SEGWIT_OUTPUT_SIZE = 23;
+        BECH32M_OUTPUT_SIZE = 35; // Check this later
 
     function _redeemScript(addr, key) {
         let decode = coinjs.addressDecode(addr);
@@ -291,6 +297,8 @@
                 return key ? coinjs.segwitAddress(btcOperator.pubkey(key)).redeemscript : null;
             case "bech32":
                 return decode.redeemscript;
+            case "bech32m":
+                return decode.outstring; //Maybe the redeemscript will come when input processing happens for bech32m   
             default:
                 return null;
         }
@@ -328,6 +336,8 @@
                 return BASE_OUTPUT_SIZE + BECH32_MULTISIG_OUTPUT_SIZE;
             case "multisig":
                 return BASE_OUTPUT_SIZE + SEGWIT_OUTPUT_SIZE;
+            case "bech32m":
+                return BASE_OUTPUT_SIZE + BECH32M_OUTPUT_SIZE;    
             default:
                 return null;
         }