46 lines
1.1 KiB
Plaintext
46 lines
1.1 KiB
Plaintext
use aiken/dict
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use aiken/list
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use aiken/transaction.{OutputReference, ScriptContext, Transaction} as tx
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use aiken/transaction/value
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type Action {
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Mint
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Burn
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}
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validator gift_card(token_name: ByteArray, utxo_ref: OutputReference) {
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mint(rdmr: Action, policy_id: PolicyId, transaction: Transaction) -> Bool {
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let Transaction { inputs, mint, .. } = transaction
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expect [Pair(asset_name, amount)] =
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mint
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|> value.from_minted_value
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|> value.tokens(policy_id)
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|> dict.to_pairs()
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when rdmr is {
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Mint -> {
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expect Some(_input) =
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list.find(inputs, fn(input) { input.output_reference == utxo_ref })
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amount == 1 && asset_name == token_name
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}
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Burn -> amount == -1 && asset_name == token_name
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}
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}
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}
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validator redeem(token_name: ByteArray, policy_id: ByteArray) {
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spend(_d: Data, _r: Data, _o_ref: Data, transaction: Transaction) -> Bool {
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let Transaction { mint, .. } = transaction
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expect [Pair(asset_name, amount)] =
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mint
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|> value.from_minted_value
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|> value.tokens(policy_id)
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|> dict.to_pairs()
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amount == -1 && asset_name == token_name
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}
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}
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