/** Browser and Node compatible byte primitives. */
export const utf8 = (value) => new TextEncoder().encode(value);
export function concat(...parts) {
    const length = parts.reduce((total, part) => total + part.length, 0);
    const out = new Uint8Array(length);
    let offset = 0;
    for (const part of parts) {
        out.set(part, offset);
        offset += part.length;
    }
    return out;
}
export function le32(value) {
    if (!Number.isInteger(value) || value < 0 || value > 0xffff_ffff)
        throw new RangeError("u32 required");
    return Uint8Array.of(value & 0xff, (value >>> 8) & 0xff, (value >>> 16) & 0xff, (value >>> 24) & 0xff);
}
/** Encodes a safe non-negative integer as LE u64 without BigInt. */
export function le64(value) {
    if (!Number.isSafeInteger(value) || value < 0)
        throw new RangeError("non-negative safe integer required");
    const lo = value >>> 0;
    const hi = Math.floor(value / 0x1_0000_0000);
    return Uint8Array.of(lo & 0xff, (lo >>> 8) & 0xff, (lo >>> 16) & 0xff, (lo >>> 24) & 0xff, hi & 0xff, (hi >>> 8) & 0xff, (hi >>> 16) & 0xff, (hi >>> 24) & 0xff);
}
export function le64Pair(low, high) {
    return Uint8Array.of(low & 0xff, (low >>> 8) & 0xff, (low >>> 16) & 0xff, (low >>> 24) & 0xff, high & 0xff, (high >>> 8) & 0xff, (high >>> 16) & 0xff, (high >>> 24) & 0xff);
}
export function readU32LE(bytes, offset) {
    if (offset < 0 || offset + 4 > bytes.length)
        throw new RangeError("u32 outside input");
    return (bytes[offset] | (bytes[offset + 1] << 8) | (bytes[offset + 2] << 16) | (bytes[offset + 3] << 24)) >>> 0;
}
export function hex(bytes) {
    let out = "";
    for (const b of bytes)
        out += b.toString(16).padStart(2, "0");
    return out;
}