{
  "version": 3,
  "sources": ["../src/pox/constants.ts", "../src/pox5/btcAddress.ts"],
  "sourcesContent": [
    "export const POX_CONTRACTS = {\n\tmainnet: {\n\t\taddress: \"SP000000000000000000002Q6VF78\",\n\t\tname: \"pox-4\",\n\t},\n\ttestnet: {\n\t\taddress: \"ST000000000000000000002AMW42H\",\n\t\tname: \"pox-4\",\n\t},\n} as const;\n\nexport const MIN_LOCK_PERIOD = 1;\nexport const MAX_LOCK_PERIOD = 12;\n\n/** PoX address version bytes (maps to Bitcoin address types) */\nexport const POX_ADDRESS_VERSION = {\n\t/** P2PKH - legacy addresses starting with \"1\" */\n\tp2pkh: 0x00,\n\t/** P2SH - script hash addresses starting with \"3\" */\n\tp2sh: 0x01,\n\t/** P2SH-P2WPKH - nested segwit */\n\tp2sh_p2wpkh: 0x02,\n\t/** P2SH-P2WSH - nested segwit script */\n\tp2sh_p2wsh: 0x03,\n\t/** P2WPKH - native segwit \"bc1q\" (20-byte hash) */\n\tp2wpkh: 0x04,\n\t/** P2WSH - native segwit \"bc1q\" (32-byte hash) */\n\tp2wsh: 0x05,\n\t/** P2TR - taproot \"bc1p\" (32-byte key) */\n\tp2tr: 0x06,\n} as const;\n",
    "import { base58, bech32, bech32m } from \"@scure/base\";\nimport {\n\tBITCOIN_NETWORK_PARAMS,\n\tbase58CheckEncode,\n} from \"../bitcoin/address.ts\";\nimport type { BitcoinNetwork } from \"../bitcoin/constants.ts\";\nimport { doubleSha256 } from \"../bitcoin/serialize.ts\";\nimport { POX_ADDRESS_VERSION } from \"../pox/constants.ts\";\n\n/**\n * SIP-005 PoX `pox-addr` tuple, decoded from a Bitcoin address. `version` is\n * the PoX byte (`POX_ADDRESS_VERSION`), not a Bitcoin network version\n * (`p2sh` is 0x01 here, 0x05 on mainnet Bitcoin). `hashbytes` is the 20- or\n * 32-byte payload — unpadded, matching `check-pox-addr-hashbytes`.\n */\nexport type BtcAddressRepr = {\n\tversion: number;\n\thashbytes: Uint8Array;\n};\n\nfunction expectedHashLen(version: number): number {\n\tif (!Number.isInteger(version) || version < 0x00 || version > 0x06) {\n\t\tthrow new Error(`Unknown PoX address version: 0x${version.toString(16)}`);\n\t}\n\treturn version <= 0x04 ? 20 : 32;\n}\n\n/** Strip frozen-pox 32-byte padding; reject a length that doesn't match the version. */\nexport function canonicalizeBtcAddress(repr: BtcAddressRepr): BtcAddressRepr {\n\tconst expected = expectedHashLen(repr.version);\n\tconst { hashbytes } = repr;\n\tif (hashbytes.length === expected)\n\t\treturn { version: repr.version, hashbytes };\n\tif (\n\t\texpected === 20 &&\n\t\thashbytes.length === 32 &&\n\t\thashbytes.slice(20).every((b) => b === 0)\n\t) {\n\t\treturn { version: repr.version, hashbytes: hashbytes.slice(0, 20) };\n\t}\n\tthrow new Error(\n\t\t`Invalid hashbytes length for PoX version 0x${repr.version.toString(16)}: ${hashbytes.length}`,\n\t);\n}\n\n/**\n * Parse a Bitcoin address string into a PoX address tuple.\n * Supports P2PKH, P2SH, P2WPKH, P2WSH, P2TR (mainnet, testnet, regtest).\n */\nexport function parseBtcAddress(address: string): BtcAddressRepr {\n\tif (\n\t\taddress.startsWith(\"bc1\") ||\n\t\taddress.startsWith(\"tb1\") ||\n\t\taddress.startsWith(\"bcrt1\")\n\t) {\n\t\treturn parseSegwitAddress(address);\n\t}\n\treturn parseLegacyAddress(address);\n}\n\nfunction parseSegwitAddress(address: string): BtcAddressRepr {\n\tlet decoded: { prefix: string; words: number[] };\n\ttry {\n\t\tdecoded = bech32.decode(address as `${string}1${string}`);\n\t} catch {\n\t\tdecoded = bech32m.decode(address as `${string}1${string}`);\n\t}\n\n\tconst witnessVersion = decoded.words[0];\n\tif (witnessVersion === undefined) {\n\t\tthrow new Error(\"Invalid segwit address: missing witness version\");\n\t}\n\tconst data = bech32.fromWords(decoded.words.slice(1));\n\tconst hashbytes = new Uint8Array(data);\n\n\tlet version: number;\n\tif (witnessVersion === 0) {\n\t\tif (hashbytes.length === 20) {\n\t\t\tversion = POX_ADDRESS_VERSION.p2wpkh;\n\t\t} else if (hashbytes.length === 32) {\n\t\t\tversion = POX_ADDRESS_VERSION.p2wsh;\n\t\t} else {\n\t\t\tthrow new Error(`Invalid witness v0 program length: ${hashbytes.length}`);\n\t\t}\n\t} else if (witnessVersion === 1) {\n\t\tif (hashbytes.length !== 32) {\n\t\t\tthrow new Error(`Invalid witness v1 program length: ${hashbytes.length}`);\n\t\t}\n\t\tversion = POX_ADDRESS_VERSION.p2tr;\n\t} else {\n\t\tthrow new Error(`Unsupported witness version: ${witnessVersion}`);\n\t}\n\n\treturn { version, hashbytes };\n}\n\nfunction parseLegacyAddress(address: string): BtcAddressRepr {\n\tconst decoded = base58.decode(address);\n\n\tif (decoded.length !== 25) {\n\t\tthrow new Error(`Invalid legacy address length: ${decoded.length}`);\n\t}\n\n\tconst versionByte = decoded[0];\n\tif (versionByte === undefined) {\n\t\tthrow new Error(\"Invalid legacy address: missing version byte\");\n\t}\n\tconst payload = decoded.slice(0, 21);\n\tconst checksum = decoded.slice(21);\n\tconst expected = doubleSha256(payload).slice(0, 4);\n\tif (checksum.length !== 4 || expected.some((b, i) => b !== checksum[i])) {\n\t\tthrow new Error(\"Invalid legacy address checksum\");\n\t}\n\tconst hashbytes = decoded.slice(1, 21);\n\n\tlet version: number;\n\tif (versionByte === 0x00 || versionByte === 0x6f) {\n\t\tversion = POX_ADDRESS_VERSION.p2pkh;\n\t} else if (versionByte === 0x05 || versionByte === 0xc4) {\n\t\tversion = POX_ADDRESS_VERSION.p2sh;\n\t} else {\n\t\tthrow new Error(\n\t\t\t`Unknown legacy address version byte: 0x${versionByte.toString(16)}`,\n\t\t);\n\t}\n\n\treturn { version, hashbytes };\n}\n\nexport function stringifyBtcAddress(\n\trepr: BtcAddressRepr,\n\tnetwork: BitcoinNetwork,\n): string {\n\tconst { version, hashbytes } = canonicalizeBtcAddress(repr);\n\tconst params = BITCOIN_NETWORK_PARAMS[network];\n\tswitch (version) {\n\t\tcase POX_ADDRESS_VERSION.p2pkh:\n\t\t\treturn base58CheckEncode(params.p2pkh, hashbytes);\n\t\tcase POX_ADDRESS_VERSION.p2sh:\n\t\tcase POX_ADDRESS_VERSION.p2sh_p2wpkh:\n\t\tcase POX_ADDRESS_VERSION.p2sh_p2wsh:\n\t\t\treturn base58CheckEncode(params.p2sh, hashbytes);\n\t\tcase POX_ADDRESS_VERSION.p2wpkh:\n\t\tcase POX_ADDRESS_VERSION.p2wsh:\n\t\t\treturn bech32.encode(params.hrp, [0, ...bech32.toWords(hashbytes)]);\n\t\tcase POX_ADDRESS_VERSION.p2tr:\n\t\t\treturn bech32m.encode(params.hrp, [1, ...bech32m.toWords(hashbytes)]);\n\t\tdefault:\n\t\t\tthrow new Error(`Unknown PoX address version: 0x${version.toString(16)}`);\n\t}\n}\n\nexport const BtcAddress: {\n\tparse: typeof parseBtcAddress;\n\tstringify: typeof stringifyBtcAddress;\n} = {\n\tparse: parseBtcAddress,\n\tstringify: stringifyBtcAddress,\n};\n"
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