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Use PushDrop class here #2

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Use PushDrop class here #2

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52 changes: 13 additions & 39 deletions src/apps/mint.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -98,47 +98,21 @@ class MintApp {
metadata: TokenMetadata
): Promise<Script> {
// Convert amount to 8-byte little-endian buffer
const amountBuffer = new Array(8).fill(0)
let remaining = amount
for (let i = 0; i < 8; i++) {
amountBuffer[i] = remaining % 256
remaining = Math.floor(remaining / 256)
}
const aWriter = new Utils.Writer()
aWriter.writeUInt64LE(amount)
const amountArr = aWriter.toArray()

// Get locking key from wallet
const lockingKeyResult = await this.wallet.getPublicKey({
protocolID: [0, 'tokens'],
keyID: tokenId.slice(0, 32)
})
const lockingPublicKey = lockingKeyResult.publicKey
const fields = [
Utils.toArray('TOKEN', 'utf8'),
Utils.toArray(tokenId, 'hex'),
amountArr,
Utils.toArray(JSON.stringify(metadata), 'utf8')
]

// Build PushDrop script manually with OP_DROP
// Format: <lockingKey> OP_DROP <data fields> OP_DROP
const script = new Script()

// Push locking key (33 bytes)
script.writeBin(Utils.toArray(lockingPublicKey, 'hex'))

// OP_DROP (0x75)
script.writeOpCode(117)

// Push protocol
script.writeBin(Utils.toArray('TOKEN', 'utf8'))

// Push tokenId
script.writeBin(Utils.toArray(tokenId, 'hex'))

// Push amount
script.writeBin(amountBuffer)

// Push owner key
script.writeBin(Utils.toArray(this.identityKey || '', 'hex'))

// Push metadata
script.writeBin(Utils.toArray(JSON.stringify(metadata), 'utf8'))

// OP_DROP (0x75)
script.writeOpCode(117)
// Format: <data> OP_DROPS <lockingKey>
const token = new PushDrop(this.wallet, 'tokenisation-workshop.local')
const script = await token.lock(fields, [0, 'tokens of workshop relevance'], 'mint-output', 'self', true, true)

return script
}
Expand Down Expand Up @@ -167,7 +141,7 @@ class MintApp {
outputs: [
{
lockingScript: tokenScript.toHex(),
satoshis: 1000, // Minimum satoshis for spendable output (1000 sats = ~$0.0005)
satoshis: 1,
outputDescription: 'Spendable PushDrop token mint',
basket: 'tokens'
}
Expand Down