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const BASE64_URL_ALPHABET = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_\";\n\nconst tempMap = new Int16Array(256).fill(-1);\nfor (let i = 0; i < BASE64_URL_ALPHABET.length; i++) {\n    tempMap[BASE64_URL_ALPHABET.charCodeAt(i)] = i;\n}\nexport const BASE64_URL_MAP = tempMap\n\n","import { BASE64_URL_ALPHABET, BASE64_URL_MAP } from \"./constants\";\n\nexport function encodeAddress(bytes: Uint8Array): string {\n  if (bytes.length !== 32) {\n    throw new Error('Expected 32-byte address');\n  }\n\n  let checksum = 0;\n  let accumulator = 0;\n  let bitsCollected = 0;\n  const output: string[] = ['t', 'a'];\n\n  for (let i = 0; i < 30; i++) {\n    const byte = bytes[i];\n    checksum += byte;\n    accumulator = ((accumulator << 8) | byte) >>> 0;\n    bitsCollected += 8;\n    while (bitsCollected >= 6) {\n      const index = (accumulator >> (bitsCollected - 6)) & 0x3f;\n      output.push(BASE64_URL_ALPHABET[index]);\n      bitsCollected -= 6;\n      accumulator &= maskForBits(bitsCollected);\n    }\n  }\n\n  const secondLast = bytes[30];\n  checksum += secondLast;\n  accumulator = ((accumulator << 8) | secondLast) >>> 0;\n  bitsCollected += 8;\n\n  const last = bytes[31];\n  checksum += last;\n  accumulator = ((accumulator << 8) | last) >>> 0;\n  bitsCollected += 8;\n\n  accumulator = ((accumulator << 8) | (checksum & 0xff)) >>> 0;\n  bitsCollected += 8;\n\n  while (bitsCollected >= 6) {\n    const index = (accumulator >> (bitsCollected - 6)) & 0x3f;\n    output.push(BASE64_URL_ALPHABET[index]);\n    bitsCollected -= 6;\n    accumulator &= maskForBits(bitsCollected);\n  }\n\n  return output.join('');\n}\n\nexport function decodeAddress(value: string): Uint8Array {\n  if (value.length !== 46) {\n    throw new Error('Invalid address length');\n  }\n  if (!value.startsWith('ta')) {\n    throw new Error('Address must start with \"ta\"');\n  }\n\n  const output = new Uint8Array(32);\n  let checksum = 0;\n  let inIdx = 2;\n  let remaining = 40;\n  let outIdx = 0;\n\n  while (remaining >= 4) {\n    const a = BASE64_URL_MAP[value.charCodeAt(inIdx)];\n    const b = BASE64_URL_MAP[value.charCodeAt(inIdx + 1)];\n    const c = BASE64_URL_MAP[value.charCodeAt(inIdx + 2)];\n    const d = BASE64_URL_MAP[value.charCodeAt(inIdx + 3)];\n    if (a < 0 || b < 0 || c < 0 || d < 0) {\n      throw new Error('Invalid address encoding');\n    }\n    const triple = (a << 18) | (b << 12) | (c << 6) | d;\n    const byte1 = (triple >> 16) & 0xff;\n    const byte2 = (triple >> 8) & 0xff;\n    const byte3 = triple & 0xff;\n    checksum += byte1;\n    checksum += byte2;\n    checksum += byte3;\n    output[outIdx++] = byte1;\n    output[outIdx++] = byte2;\n    output[outIdx++] = byte3;\n    inIdx += 4;\n    remaining -= 4;\n  }\n\n  const a = BASE64_URL_MAP[value.charCodeAt(inIdx)];\n  const b = BASE64_URL_MAP[value.charCodeAt(inIdx + 1)];\n  const c = BASE64_URL_MAP[value.charCodeAt(inIdx + 2)];\n  const d = BASE64_URL_MAP[value.charCodeAt(inIdx + 3)];\n  if (a < 0 || b < 0 || c < 0 || d < 0) {\n    throw new Error('Invalid address encoding');\n  }\n  const triple = (a << 18) | (b << 12) | (c << 6) | d;\n  const byte1 = (triple >> 16) & 0xff;\n  const byte2 = (triple >> 8) & 0xff;\n  const incomingChecksum = triple & 0xff;\n\n  checksum += byte1;\n  checksum += byte2;\n  output[outIdx++] = byte1;\n  output[outIdx++] = byte2;\n\n  checksum &= 0xff;\n  if (checksum !== incomingChecksum) {\n    throw new Error('Address checksum mismatch');\n  }\n\n  return output;\n}\n\nfunction maskForBits(bits: number): number {\n  return bits === 0 ? 0 : (1 << bits) - 1;\n}\n","export function decodeBase64(value: string): Uint8Array {\n  if (value.length === 0) {\n    return new Uint8Array();\n  }\n  const atobFn = globalThis.atob;\n  if (!atobFn) {\n    throw new Error('Base64 decoding requires globalThis.atob support');\n  }\n  const binary = atobFn(value);\n  const bytes = new Uint8Array(binary.length);\n  for (let i = 0; i < binary.length; i++) {\n    bytes[i] = binary.charCodeAt(i);\n  }\n  return bytes;\n}\n\nexport function hexToBytes(value: string): Uint8Array {\n  const normalized = value.startsWith('0x') ? value.slice(2) : value;\n  if (normalized.length % 2 !== 0) {\n    throw new Error('Hex string must contain an even number of characters');\n  }\n  const bytes = new Uint8Array(normalized.length / 2);\n  for (let i = 0; i < normalized.length; i += 2) {\n    const byte = parseInt(normalized.slice(i, i + 2), 16);\n    if (Number.isNaN(byte)) {\n      throw new Error('Hex string contains invalid characters');\n    }\n    bytes[i / 2] = byte;\n  }\n  return bytes;\n}\n\nexport function isHexString(value: string): boolean {\n  const normalized = value.startsWith('0x') ? value.slice(2) : value;\n  return normalized.length % 2 === 0 && normalized.length > 0 && /^[0-9a-fA-F]+$/.test(normalized);\n}\n","import { decodeBase64 } from \"./encoding\";\n\nexport function ensureBytes(value: Uint8Array | string | undefined, field: string): Uint8Array {\n    if (value instanceof Uint8Array) {\n        if (value.length === 0) {\n            throw new Error(`${field} cannot be empty`);\n        }\n        return value;\n    }\n    if (typeof value === \"string\") {\n        if (value.length === 0) {\n            throw new Error(`${field} cannot be empty`);\n        }\n        return decodeBase64(value);\n    }\n    throw new Error(`${field} is required`);\n}\n\nexport function maskForBits(bits: number): number {\n    return bits === 0 ? 0 : (1 << bits) - 1;\n}","import { BASE64_URL_ALPHABET, BASE64_URL_MAP } from \"./constants\";\nimport { maskForBits } from \"./utils\";\n\nexport function encodeSignature(bytes: Uint8Array): string {\n    if (bytes.length !== 64) {\n        throw new Error(\"Expected 64-byte signature\");\n    }\n    let checksum = 0;\n    let accumulator = 0;\n    let bitsCollected = 0;\n    const output: string[] = [\"t\", \"s\"];\n\n    for (let i = 0; i < 63; i++) {\n        const byte = bytes[i];\n        checksum += byte;\n        accumulator = ((accumulator << 8) | byte) >>> 0;\n        bitsCollected += 8;\n        while (bitsCollected >= 6) {\n            const index = (accumulator >> (bitsCollected - 6)) & 0x3f;\n            output.push(BASE64_URL_ALPHABET[index]);\n            bitsCollected -= 6;\n            accumulator &= maskForBits(bitsCollected);\n        }\n    }\n\n    const lastByte = bytes[63];\n    checksum += lastByte;\n    accumulator = ((accumulator << 8) | lastByte) >>> 0;\n    bitsCollected += 8;\n    accumulator = ((accumulator << 16) | (checksum & 0xffff)) >>> 0;\n    bitsCollected += 16;\n\n    while (bitsCollected >= 6) {\n        const index = (accumulator >> (bitsCollected - 6)) & 0x3f;\n        output.push(BASE64_URL_ALPHABET[index]);\n        bitsCollected -= 6;\n        accumulator &= maskForBits(bitsCollected);\n    }\n\n    return output.join(\"\");\n}\n\nexport function decodeSignature(value: string): Uint8Array {\n    if (value.length !== 90) {\n        throw new Error(\"Invalid signature length\");\n    }\n    if (!value.startsWith(\"ts\")) {\n        throw new Error('Signature must start with \"ts\"');\n    }\n\n    const output = new Uint8Array(64);\n    let checksum = 0;\n    let inIdx = 2;\n    let remaining = 84;\n    let outIdx = 0;\n\n    while (remaining > 0) {\n        const a = BASE64_URL_MAP[value.charCodeAt(inIdx)];\n        const b = BASE64_URL_MAP[value.charCodeAt(inIdx + 1)];\n        const c = BASE64_URL_MAP[value.charCodeAt(inIdx + 2)];\n        const d = BASE64_URL_MAP[value.charCodeAt(inIdx + 3)];\n        if (a < 0 || b < 0 || c < 0 || d < 0) {\n            throw new Error(\"Invalid signature encoding\");\n        }\n        const triple = (a << 18) | (b << 12) | (c << 6) | d;\n        const byte1 = (triple >> 16) & 0xff;\n        const byte2 = (triple >> 8) & 0xff;\n        const byte3 = triple & 0xff;\n        checksum += byte1;\n        checksum += byte2;\n        checksum += byte3;\n        output[outIdx++] = byte1;\n        output[outIdx++] = byte2;\n        output[outIdx++] = byte3;\n        inIdx += 4;\n        remaining -= 4;\n    }\n\n    const a = BASE64_URL_MAP[value.charCodeAt(inIdx)];\n    const b = BASE64_URL_MAP[value.charCodeAt(inIdx + 1)];\n    const c = BASE64_URL_MAP[value.charCodeAt(inIdx + 2)];\n    const d = BASE64_URL_MAP[value.charCodeAt(inIdx + 3)];\n    if (a < 0 || b < 0 || c < 0 || d < 0) {\n        throw new Error(\"Invalid signature encoding\");\n    }\n    const triple = (a << 18) | (b << 12) | (c << 6) | d;\n    const finalByte = (triple >> 16) & 0xff;\n    checksum += finalByte;\n    output[outIdx] = finalByte;\n\n    const incomingChecksum = triple & 0xffff;\n    checksum &= 0xffff;\n    if (checksum !== incomingChecksum) {\n        throw new Error(\"Signature checksum mismatch\");\n    }\n\n    return output;\n}","export function getWebCrypto(): Crypto {\n  const cryptoObj = typeof globalThis !== 'undefined' ? (globalThis as { crypto?: Crypto }).crypto : undefined;\n\n  if (cryptoObj && typeof cryptoObj.getRandomValues === 'function') {\n    return cryptoObj;\n  }\n\n  throw new Error('Web Crypto API is unavailable. Provide a polyfill exposing globalThis.crypto.');\n}\n"]}