@paykit-sdk/core/dist/tools/utils.mjs

The Payment Toolkit for Typescript

import { setTimeout } from 'timers/promises';
import { z } from 'zod';

// src/tools/utils.ts

// src/error.ts
var UnTraceableError = class extends Error {
  constructor(message) {
    super(message);
    this.name = this.constructor.name;
    this.stack = void 0;
  }
};
var PAYKIT_METADATA_KEY = "__paykit";
z.record(z.string(), z.string());

// src/tools/try-catch.ts
function tryCatchSync(fn) {
  try {
    const data = fn();
    return [data, void 0];
  } catch (error) {
    return [void 0, error];
  }
}

// src/tools/utils.ts
var OK = (value) => ({
  ok: true,
  value
});
var ERR = (error) => ({
  ok: false,
  error
});
var unwrapAsync = async (pr) => {
  const r = await pr;
  if (!r.ok) throw r.error;
  return r.value;
};
function safeParse(rawValue, fn, errorMessage) {
  const [result, error] = tryCatchSync(() => fn(rawValue));
  if (error) return ERR(buildError(errorMessage, error));
  return OK(result);
}
var safeEncode = (value) => {
  return safeParse(
    value,
    (value2) => Buffer.from(JSON.stringify(value2)).toString("base64"),
    "Failed to encode value"
  );
};
var safeDecode = (value) => {
  return safeParse(
    value,
    (value2) => JSON.parse(Buffer.from(value2, "base64").toString("utf-8")),
    "Failed to decode value"
  );
};
async function executeWithRetryWithHandler(apiCall, errorHandler, maxRetries = 3, baseDelay = 1e3, currentAttempt = 1) {
  try {
    return await apiCall();
  } catch (error) {
    const handledError = errorHandler(error, currentAttempt);
    if (!handledError.retry) {
      if (handledError.data == null) throw error;
      return handledError.data;
    }
    if (handledError.retry && currentAttempt <= maxRetries) {
      const delay = baseDelay * Math.pow(2, currentAttempt - 1) * (0.5 + Math.random() * 0.5);
      await setTimeout(delay);
      return executeWithRetryWithHandler(
        apiCall,
        errorHandler,
        maxRetries,
        baseDelay,
        currentAttempt + 1
      );
    }
    if (handledError.data == null) throw error;
    return handledError.data;
  }
}
function buildError(message, cause) {
  const error = new Error(message);
  if (cause) error.cause = cause;
  return error;
}
var validateRequiredKeys = (requiredKeys, source, errorMessage, errorInstance) => {
  const missingKeys = [];
  const result = {};
  for (const key of requiredKeys) {
    const value = source[key];
    if (!value) {
      missingKeys.push(key);
    } else {
      result[key] = value;
    }
  }
  if (missingKeys.length > 0) {
    const missingKeysList = missingKeys.join(", ");
    const error = typeof errorMessage === "function" ? errorMessage(missingKeys) : errorMessage.replace("{keys}", missingKeysList);
    throw errorInstance?.(error) ?? new UnTraceableError(error);
  }
  return result;
};
var parseJSON = (str, schema2) => {
  try {
    const parsed = JSON.parse(str);
    return schema2.parse(parsed);
  } catch (error) {
    return null;
  }
};
var schema = () => {
  return (schema2) => schema2;
};
var omitInternalMetadata = (metadata, internalKeys = [PAYKIT_METADATA_KEY]) => {
  return Object.entries(metadata).reduce((acc, [key, value]) => {
    if (!internalKeys.includes(key)) {
      acc[key] = String(value);
    }
    return acc;
  }, {});
};
var stringifyMetadataValues = (metadata) => {
  return Object.fromEntries(
    Object.entries(metadata).map(([key, value]) => [
      key,
      typeof value === "string" ? value : JSON.stringify(value)
    ])
  );
};
var getURLFromHeaders = (headers) => {
  if (headers["origin"]) return headers["origin"];
  if (headers["x-forwarded-host"]) {
    const protocol = headers["x-forwarded-proto"] ?? "https";
    const host = headers["x-forwarded-host"];
    const path = headers["x-forwarded-path"] ?? "";
    return `${protocol}://${host}${path}`;
  }
  if (headers["host"]) {
    const protocol = headers["x-forwarded-proto"] ?? "https";
    const host = headers["host"];
    const path = headers["x-original-url"] ?? headers["x-forwarded-path"] ?? "";
    return `${protocol}://${host}${path}`;
  }
  return "";
};
var refundReasonMatcher = (matcher) => {
  if (/duplicate|duplicated|double.*charge|charged.*twice/i.test(
    matcher.toLowerCase().trim()
  )) {
    return "duplicate";
  }
  if (/fraud|fraudulent|unauthorized|scam|stolen.*card|not.*authorized/i.test(
    matcher.toLowerCase().trim()
  )) {
    return "fraudulent";
  }
  if (/customer.*request|requested.*customer|customer.*want|cancel|refund.*request|changed.*mind/i.test(
    matcher.toLowerCase().trim()
  )) {
    return "requested_by_customer";
  }
  return "other";
};

export { ERR, OK, buildError, executeWithRetryWithHandler, getURLFromHeaders, omitInternalMetadata, parseJSON, refundReasonMatcher, safeDecode, safeEncode, safeParse, schema, stringifyMetadataValues, unwrapAsync, validateRequiredKeys };