fix dftx TokenMint (#183)

* bug fix on dftx TokenMint

Author: canonbrother

packages/jellyfish-transaction/__tests__/script/defi/dftx_token/TokenMint.test.ts

@@ -6,10 +6,8 @@ import { OP_CODES, toBuffer, toOPCodes } from '../../../../src/script'
 
 it('should bi-directional buffer-object-buffer', () => {
   const fixtures = [
-    '6a0e446654784d016050da6001000000',
-    '6a0e446654784d035fc05c7302000000',
-    '6a0e446654784d03a45ce23902000000',
-    '6a0e446654784d06ede2e73001040000'
+    '6a12446654784d010200000000ca9a3b00000000',
+    '6a12446654784d010200000000ea56fa00000000'
   ]
 
   fixtures.forEach(hex => {
@@ -22,11 +20,15 @@ it('should bi-directional buffer-object-buffer', () => {
   })
 })
 
-const header = '6a0e446654784d' // OP_RETURN, PUSH_DATA(44665478, 4d)
-const data = '016050da6001000000'
+const header = '6a12446654784d' // OP_RETURN, PUSH_DATA(44665478, 4d)
+const data = '01010000006050da6001000000'
 const tokenMint: TokenMint = {
-  tokenId: 1,
-  amount: new BigNumber('59.19887456')
+  balances: [
+    {
+      token: 1,
+      amount: new BigNumber('59.19887456')
+    }
+  ]
 }
 
 it('should craft dftx with OP_CODES._()', () => {

packages/jellyfish-transaction/src/script/defi/dftx_token.ts

@@ -1,5 +1,5 @@
-import BigNumber from 'bignumber.js'
 import { BufferComposer, ComposableBuffer } from '../../buffer/buffer_composer'
+import { TokenBalance, CTokenBalance } from './dftx_balance'
 
 // Disabling no-return-assign makes the code cleaner with the setter and getter */
 /* eslint-disable no-return-assign */
@@ -8,8 +8,7 @@ import { BufferComposer, ComposableBuffer } from '../../buffer/buffer_composer'
  * TokenMint DeFi Transaction
  */
 export interface TokenMint {
-  tokenId: number // -------------------| VarUInt{1-9 bytes}
-  amount: BigNumber // -----------------| 8 bytes
+  balances: TokenBalance[] // ----------| c = VarUInt{1-9 bytes}, + c x TokenBalance
 }
 
 /**
@@ -22,8 +21,7 @@ export class CTokenMint extends ComposableBuffer<TokenMint> {
 
   composers (tm: TokenMint): BufferComposer[] {
     return [
-      ComposableBuffer.varUInt(() => tm.tokenId, v => tm.tokenId = v),
-      ComposableBuffer.satoshiAsBigNumber(() => tm.amount, v => tm.amount = v)
+      ComposableBuffer.varUIntArray(() => tm.balances, v => tm.balances = v, v => new CTokenBalance(v))
     ]
   }
 }