@unspent/phi/dist/main/contract/faucet/cash/v2.js

a collection of anyone can spend contracts

// Automatically Generated
export const artifact = {
    "contractName": "Faucet",
    "constructorInputs": [
        {
            "name": "period",
            "type": "int"
        },
        {
            "name": "payout",
            "type": "int"
        },
        {
            "name": "index",
            "type": "int"
        }
    ],
    "abi": [
        {
            "name": "drip",
            "inputs": []
        }
    ],
    "bytecode": "OP_TXVERSION OP_2 OP_GREATERTHANOREQUAL OP_VERIFY OP_CHECKSEQUENCEVERIFY OP_DROP OP_SWAP OP_0 OP_GREATERTHANOREQUAL OP_VERIFY OP_TXINPUTCOUNT OP_1 OP_NUMEQUALVERIFY OP_INPUTINDEX OP_UTXOVALUE OP_2DUP OP_SWAP OP_SUB OP_SWAP OP_ROT OP_GREATERTHAN OP_IF OP_0 OP_OUTPUTVALUE OP_OVER OP_GREATERTHANOREQUAL OP_VERIFY OP_0 OP_OUTPUTBYTECODE OP_INPUTINDEX OP_UTXOBYTECODE OP_EQUALVERIFY OP_ENDIF OP_DROP OP_1",
    "source": "pragma cashscript ^0.8.1;\n\n// Unspent Phi\n//\n// Faucet v2 \n//\n// Faucet: pay to anyone at intervals using rolling timelocks.\n// \n// [ ] Require a version 2 transaction.\n// [ ] The input must have aged for a predefined number of blocks (the period)\n// [ ] All utxos must be processed atomically. One input per tx, no merging.\n// If enough funds exist for future payout, \n//       [ ] calculate the value to be returned minus payout,\n//       [ ] send the remainder back to the faucet.\n// Otherwise, \n//       [ ] allow unrestricted liquidation\n// \n// Implementation notes: contract requires 32-byte locking bytecode style address.\n// \n// String & op_return serializations:\n//\n// F,2,<period>,<payout>,<index>,<contractBytecode>\n// \n// 6a 047574786f\n// 01 46\n// 01 02\n// ...\n\ncontract Faucet(\n\n  // interval for payouts, in blocks\n  int period,\n\n  // amount to be paid by faucet allowance. \n  int payout,\n\n  // random number input into contract to have more than one\n  int index\n  \n) {\n  function drip() {\n\n    // Force tx version 2 to force BIP68 support\n    require(tx.version >= 2);\n\n    // Check that time has passed and that time locks are enabled\n    require(tx.age >= period);\n      \n    // Use the index to do nothing but\n    // avoid warnings from the compiler about unused variables.\n    require(index >= 0);\n\n    // Limit to a single utxo input\n    require(tx.inputs.length == 1);\n    \n    // Get the value of the input\n    int currentValue = tx.inputs[this.activeInputIndex].value;\n\n    // Calculate value returned to the contract\n    int returnedValue = currentValue - payout;\n\n    // If the value on the contract exceeds the payout amount\n    // then assert that the value must return to the contract\n    if(currentValue > payout){\n\n      // return the balance to the contract\n      require(tx.outputs[0].value >= returnedValue);\n      \n      // require the first output to match the active bytecode\n      require(tx.outputs[0].lockingBytecode == tx.inputs[this.activeInputIndex].lockingBytecode);\n\n    } // otherwise output is unrestricted.\n\n  }\n\n}",
    "compiler": {
        "name": "cashc",
        "version": "0.8.2"
    },
    "updatedAt": "2025-02-12T18:47:33.489Z"
};
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