const { B32, SECP, deriveChildPubkey, ripemd160, hash160, toBech32, deriveAddresses } = require('/tmp/cripto/crypto.js');
const hex = a => Array.from(a).map(b=>b.toString(16).padStart(2,'0')).join('');
let pass=0, fail=0;
const check=(n,g,w)=>{ const ok=g===w; console.log(`  ${ok?'✓':'✗'} ${n}`); if(!ok){console.log(`      obtenido: ${g}`);console.log(`      esperado: ${w}`);fail++;}else pass++; };

(async () => {
// ── BIP32, vectores oficiales del estándar ──
// Vector 1: seed 000102...0e0f
// m/0/1  derivado SOLO con clave pública (derivación no endurecida)
console.log("=== 4. BIP32 — vector 1 oficial, derivación pública ===");
// xpub de m (raíz) del vector 1
const M = "xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8";
const raw = B32.decodeBase58(M);
const chain = raw.slice(13,45), pub = raw.slice(45,78);
check("clave pública de m", hex(pub), "0339a36013301597daef41fbe593a02cc513d0b55527ec2df1050e2e8ff49c85c2");
check("chain code de m",   hex(chain), "873dff81c02f525623fd1fe5167eac3a55a049de3d314bb42ee227ffed37d508");

// m/0  → xpub esperado del estándar
const m0 = await deriveChildPubkey(pub, chain, 0);
// del vector oficial: xpub de m/0'/1 ... usamos m/0 no endurecido del vector 2
console.log("\n=== 5. BIP32 — vector 2 oficial (m/0, no endurecida) ===");
const M2 = "xpub661MyMwAqRbcFW31YEwpkMuc5THy2PSt5bDMsktWQcFF8syAmRUapSCGu8ED9W6oDMSgv6Zz8idoc4a6mr8BDzTJY47LJhkJ8UB7WEGuduB";
const r2 = B32.decodeBase58(M2);
const c2 = r2.slice(13,45), p2 = r2.slice(45,78);
const d2 = await deriveChildPubkey(p2, c2, 0);
check("m/0 clave pública", hex(d2.pub), "02fc9e5af0ac8d9b3cecfe2a888e2117ba3d089d8585886c9c826b6b22a98d12ea");
check("m/0 chain code",    hex(d2.chain), "f0909affaa7ee7abe5dd4e100598d4dc53cd709d5a5c2cac40e7412f232f7c9c");

// m/0/2147483647 no se puede (endurecida). Probamos m/0/1 del vector 2:
const d3 = await deriveChildPubkey(d2.pub, d2.chain, 1);
console.log("\n=== 6. bech32 — vectores oficiales BIP173 ===");
// P2WPKH conocido: pubkey 0279be66...  → bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4
const pk = Uint8Array.from(Buffer.from("0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798","hex"));
const h = await hash160(pk);
check("hash160 de G", hex(h), "751e76e8199196d454941c45d1b3a323f1433bd6");
check("dirección P2WPKH", toBech32("bc", Array.from(h)), "bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4");
check("misma en testnet",  toBech32("tb", Array.from(h)), "tb1qw508d6qejxtdg4y5r3zarvary0c5xw7kxpjzsx");

console.log(`\nRESULTADO: ${pass} correctas, ${fail} incorrectas`);
})();