Bytes64

import * as Bytes64 from 'tevm/primitives/Bytes/Bytes64';

// Create from hex
const bytes = Bytes64('0x' + '12'.repeat(64));
console.log(bytes.length); // 64

// Create zero-filled
const zeros = Bytes64.zero();
console.log(Bytes64.isZero(zeros)); // true

// Size is strictly enforced
Bytes64(new Uint8Array(63)); // Error: must be 64 bytes

// Combine two 32-byte hashes
const hash1 = Bytes32().fill(0xaa);
const hash2 = Bytes32().fill(0xbb);
const combined = Bytes64();
combined.set(hash1, 0);
combined.set(hash2, 32);
const bytes64 = Bytes64(combined);

console.log(bytes64[0]);  // 0xaa
console.log(bytes64[32]); // 0xbb

// SHA-512, Blake2b-512, etc.
const extendedHash = Bytes64('0x...');

// Some public keys are 64 bytes (uncompressed)
const pubkey = Bytes64('0x...');

// r + s components concatenated (32 + 32 bytes)
const signature = Bytes64('0x...');

type Bytes64Type = Uint8Array & {
  readonly [Symbol.for("Bytes64")]: true;
  readonly length: 64;
};

const bytes64 = Bytes64('0x' + '12'.repeat(64));
const bytes32 = Bytes32('0x' + '12'.repeat(32));

// Type error: cannot assign Bytes32 to Bytes64
const wrong: Bytes64.Bytes64Type = bytes32;

// Lowercase hex (default)
type HexBytes64 = string & {
  readonly [Symbol.for("HexBytes64")]: true;
  readonly length: 130; // "0x" + 128 hex chars
  readonly lowercase: true;
};

// Uppercase hex
type HexBytes64Upper = string & {
  readonly [Symbol.for("HexBytes64")]: true;
  readonly length: 130;
  readonly uppercase: true;
};

// From hex
const b1 = Bytes64('0x' + '12'.repeat(64));

// From bytes
const b2 = Bytes64(Bytes64());

const bytes = Bytes64('0x' + 'ab'.repeat(64));

// Without 0x prefix
const bytes2 = Bytes64('12'.repeat(64));

// Throws on wrong length
Bytes64('0x1234'); // Error: must be 128 hex chars

const arr = Bytes64();
const bytes = Bytes64(arr);

// Throws on wrong size
Bytes64(new Uint8Array(63)); // Error

const zeros = Bytes64.zero();
console.log(Bytes64.isZero(zeros)); // true

const bytes = Bytes64(Bytes64());
const hex = Bytes64.toHex(bytes);
console.log(hex.length); // 130 (0x + 128 hex chars)

const bytes = Bytes64('0x' + '12'.repeat(64));
const arr = Bytes64.toUint8Array(bytes);
console.log(arr instanceof Uint8Array); // true

const a = Bytes64('0x' + 'aa'.repeat(64));
const b = Bytes64('0x' + 'aa'.repeat(64));
console.log(Bytes64.equals(a, b)); // true

const a = Bytes64('0x' + '01'.repeat(64));
const b = Bytes64('0x' + '02'.repeat(64));
console.log(Bytes64.compare(a, b)); // -1 (a < b)

const original = Bytes64('0x' + '12'.repeat(64));
const copy = Bytes64.clone(original);

const zeros = Bytes64.zero();
console.log(Bytes64.isZero(zeros)); // true

const nonZero = Bytes64('0x' + '00'.repeat(63) + '01');
console.log(Bytes64.isZero(nonZero)); // false

const bytes = Bytes64('0x' + '12'.repeat(64));
console.log(Bytes64.size(bytes)); // 64

console.log(Bytes64.SIZE); // 64

console.log(Bytes64.ZERO.length); // 64
console.log(Bytes64.isZero(Bytes64.ZERO)); // true

try {
  Bytes64(new Uint8Array(63));
} catch (error) {
  console.log(error.code); // "BYTES64_INVALID_LENGTH"
  console.log(error.message); // "Bytes64 must be 64 bytes, got 63"
}

try {
  Bytes64('0x1234');
} catch (error) {
  console.log(error.code); // "BYTES64_INVALID_HEX_LENGTH"
  console.log(error.message); // "Bytes64 hex must be 128 characters..."
}

import { Keccak256 } from 'tevm/Keccak256';

// Two hashes to concatenate
const hash1 = Keccak256.hash(data1);
const hash2 = Keccak256.hash(data2);

// Combine into Bytes64
const combined = Bytes64();
combined.set(hash1, 0);   // First 32 bytes
combined.set(hash2, 32);  // Second 32 bytes
const bytes64 = Bytes64(combined);

// Access components
const firstHash = bytes64.slice(0, 32);
const secondHash = bytes64.slice(32, 64);

// SHA-512 (hypothetical)
const sha512Result = Bytes64('0x...');

// Blake2b-512
const blake2b512Result = Bytes64('0x...');