@decaf-ts/decorator-validation
Version:
simple decorator based validation engine
191 lines • 23.8 kB
JavaScript
import { COMPARISON_ERROR_MESSAGES } from "./../../constants/index.js";
import { sf } from "./../../utils/index.js";
// /**
// * Safely retrieves a nested property value from an object using a dot-notated path string.
// *
// * @template T - The expected return type of the property value.
// *
// * @param {Record<string, any>} obj - The source object to retrieve the value from.
// * @param {string} path - A dot-separated string representing the path to the desired property (e.g., "user.address.street").
// *
// * @returns {T} - The value found at the specified path
// *
// * @throws {Error} - Throws an error if the path is not a non-empty string or if any part of the path does not exist in the object.
// * @memberOf module:decorator-validation
// */
// export function getValueByPath<T>(obj: Record<string, any>, path: string): T {
// if (typeof path !== "string" || !path.trim()) {
// throw new Error(sf(COMPARISON_ERROR_MESSAGES.INVALID_PATH, path));
// }
//
// // Process parent directory access (../)
// const parentAccessors = path.match(/\.\.\//g) || [];
// const parentLevel = parentAccessors.length;
// const cleanPath = path.replace(/\.\.\//g, "");
//
// // Navigate up the parent chain
// let currentContext: any = obj;
// for (let i = 0; i < parentLevel; i++) {
// if (!currentContext || typeof currentContext !== "object") {
// throw new Error(
// sf(COMPARISON_ERROR_MESSAGES.CONTEXT_NOT_OBJECT_COMPARISON, i + 1, path)
// );
// }
//
// if (!currentContext[VALIDATION_PARENT_KEY]) {
// throw new Error(
// sf(COMPARISON_ERROR_MESSAGES.NO_PARENT_COMPARISON, i + 1, path)
// );
// }
//
// currentContext = currentContext[VALIDATION_PARENT_KEY];
// }
//
// // Process dot notation path
// const parts = cleanPath.split(".");
// let currentValue: any = currentContext;
//
// for (const part of parts) {
// if (
// currentValue !== null &&
// typeof currentValue === "object" &&
// part in currentValue
// ) {
// currentValue = (currentValue as Record<string, any>)[part];
// } else {
// const errorMsgTemplate =
// parentLevel === 0
// ? COMPARISON_ERROR_MESSAGES.PROPERTY_NOT_FOUND
// : parentLevel === 1
// ? COMPARISON_ERROR_MESSAGES.PROPERTY_NOT_FOUND_ON_PARENT
// : COMPARISON_ERROR_MESSAGES.PROPERTY_NOT_FOUND_AFTER_PARENT;
//
// throw new Error(sf(errorMsgTemplate, path, part, parentLevel));
// }
// }
//
// return currentValue as T;
// }
const getTypeName = (value) => {
if (value === null)
return "null";
if (value instanceof Date)
return "Date";
if (Number.isNaN(value))
return "NaN";
if (value === Infinity)
return "Infinity";
if (value === -Infinity)
return "-Infinity";
if (Array.isArray(value))
return "array";
return typeof value;
};
const isSupported = (value) => {
if (value === undefined || value instanceof Date)
return true;
if (typeof value === "bigint")
return true;
// Numbers must be finite (excludes NaN, Infinity, -Infinity)
if (typeof value === "number")
return Number.isFinite(value);
return false;
};
/**
* Validates whether two values are eligible for comparison using >= or <= operators.
*
* Supported types: `undefined`, `number`, `bigint`, and `Date`.
*
* @param a - The first value to compare.
* @param b - The second value to compare.
*
* @returns {boolean} True if both values are of supported types.
*
* @throws {TypeError} If either value is of an unsupported type.
* @memberOf module:decorator-validation
*/
export function isValidForGteOrLteComparison(a, b) {
if (isSupported(a) && isSupported(b))
return true;
throw new TypeError(sf(COMPARISON_ERROR_MESSAGES.UNSUPPORTED_TYPES_COMPARISON, getTypeName(a), getTypeName(b)));
}
/**
* @summary Compares two values to determine if the first is less than the second.
* @description Supports numbers and dates. Throws an error for unsupported types.
*
* @param {any} a - The first value to compare.
* @param {any} b - The second value to compare against.
*
* @returns {boolean} True if `a` is less than `b`, false otherwise.
*
* @throws {Error} If either `a` or `b` is `null` or `undefined`.
* @throws {TypeError} If values are of mismatched or unsupported types.
* @memberOf module:decorator-validation
*/
export function isLessThan(a, b) {
if ([null, undefined].includes(a) || [null, undefined].includes(b))
throw new Error(COMPARISON_ERROR_MESSAGES.NULL_OR_UNDEFINED_COMPARISON);
// Validate type compatibility
const aType = typeof a;
const bType = typeof b;
if (aType !== bType) {
// Allow number X bigint
if (aType === "bigint" && bType === "number")
return Number(a) < b;
if (aType === "number" && bType === "bigint")
return a < Number(b);
throw new TypeError(sf(COMPARISON_ERROR_MESSAGES.TYPE_MISMATCH_COMPARISON, aType, bType));
}
if ((aType === "number" && bType === "number") ||
(aType === "bigint" && bType === "bigint")) {
if (Number.isNaN(a) || Number.isNaN(b))
throw new TypeError(COMPARISON_ERROR_MESSAGES.NAN_COMPARISON);
return a < b;
}
if (a instanceof Date && b instanceof Date) {
if (isNaN(a.getTime()) || isNaN(b.getTime()))
throw new TypeError(COMPARISON_ERROR_MESSAGES.INVALID_DATE_COMPARISON);
return a.getTime() < b.getTime();
}
throw new TypeError(sf(COMPARISON_ERROR_MESSAGES.UNSUPPORTED_TYPES_COMPARISON, getTypeName(a), getTypeName(b)));
}
/**
* Checks if `a` is greater than `b`.
* Supports comparison for numbers and Date objects.
*
* @param {any} a - The value to validate.
* @param {any} b - The value to compare against.
*
* @returns {boolean} True if `a` is greater than `b`, otherwise false.
*
* @throws {Error} If either `a` or `b` is `null` or `undefined`.
* @throws {TypeError} If values are of mismatched or unsupported types.
* @memberOf module:decorator-validation
*/
export function isGreaterThan(a, b) {
if ([null, undefined].includes(a) || [null, undefined].includes(b))
throw new Error(COMPARISON_ERROR_MESSAGES.NULL_OR_UNDEFINED_COMPARISON);
const aType = typeof a;
const bType = typeof b;
if (aType !== bType) {
// Allow number X bigint
if (aType === "bigint" && bType === "number")
return Number(a) > b;
if (aType === "number" && bType === "bigint")
return a > Number(b);
throw new Error(sf(COMPARISON_ERROR_MESSAGES.TYPE_MISMATCH_COMPARISON, aType, bType));
}
if ((aType === "number" && bType === "number") ||
(aType === "bigint" && bType === "bigint")) {
if (Number.isNaN(a) || Number.isNaN(b))
throw new TypeError(COMPARISON_ERROR_MESSAGES.NAN_COMPARISON);
return a > b;
}
if (a instanceof Date && b instanceof Date) {
if (isNaN(a.getTime()) || isNaN(b.getTime()))
throw new TypeError(COMPARISON_ERROR_MESSAGES.INVALID_DATE_COMPARISON);
return a.getTime() > b.getTime();
}
throw new TypeError(sf(COMPARISON_ERROR_MESSAGES.UNSUPPORTED_TYPES_COMPARISON, getTypeName(a), getTypeName(b)));
}
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The expected return type of the property value.\n//  *\n//  * @param {Record<string, any>} obj - The source object to retrieve the value from.\n//  * @param {string} path - A dot-separated string representing the path to the desired property (e.g., \"user.address.street\").\n//  *\n//  * @returns {T} - The value found at the specified path\n//  *\n//  * @throws {Error} - Throws an error if the path is not a non-empty string or if any part of the path does not exist in the object.\n//  * @memberOf module:decorator-validation\n//  */\n// export function getValueByPath<T>(obj: Record<string, any>, path: string): T {\n//   if (typeof path !== \"string\" || !path.trim()) {\n//     throw new Error(sf(COMPARISON_ERROR_MESSAGES.INVALID_PATH, path));\n//   }\n//\n//   // Process parent directory access (../)\n//   const parentAccessors = path.match(/\\.\\.\\//g) || [];\n//   const parentLevel = parentAccessors.length;\n//   const cleanPath = path.replace(/\\.\\.\\//g, \"\");\n//\n//   // Navigate up the parent chain\n//   let currentContext: any = obj;\n//   for (let i = 0; i < parentLevel; i++) {\n//     if (!currentContext || typeof currentContext !== \"object\") {\n//       throw new Error(\n//         sf(COMPARISON_ERROR_MESSAGES.CONTEXT_NOT_OBJECT_COMPARISON, i + 1, path)\n//       );\n//     }\n//\n//     if (!currentContext[VALIDATION_PARENT_KEY]) {\n//       throw new Error(\n//         sf(COMPARISON_ERROR_MESSAGES.NO_PARENT_COMPARISON, i + 1, path)\n//       );\n//     }\n//\n//     currentContext = currentContext[VALIDATION_PARENT_KEY];\n//   }\n//\n//   // Process dot notation path\n//   const parts = cleanPath.split(\".\");\n//   let currentValue: any = currentContext;\n//\n//   for (const part of parts) {\n//     if (\n//       currentValue !== null &&\n//       typeof currentValue === \"object\" &&\n//       part in currentValue\n//     ) {\n//       currentValue = (currentValue as Record<string, any>)[part];\n//     } else {\n//       const errorMsgTemplate =\n//         parentLevel === 0\n//           ? COMPARISON_ERROR_MESSAGES.PROPERTY_NOT_FOUND\n//           : parentLevel === 1\n//             ? COMPARISON_ERROR_MESSAGES.PROPERTY_NOT_FOUND_ON_PARENT\n//             : COMPARISON_ERROR_MESSAGES.PROPERTY_NOT_FOUND_AFTER_PARENT;\n//\n//       throw new Error(sf(errorMsgTemplate, path, part, parentLevel));\n//     }\n//   }\n//\n//   return currentValue as T;\n// }\n\nconst getTypeName = (value: unknown): string => {\n  if (value === null) return \"null\";\n  if (value instanceof Date) return \"Date\";\n  if (Number.isNaN(value)) return \"NaN\";\n  if (value === Infinity) return \"Infinity\";\n  if (value === -Infinity) return \"-Infinity\";\n  if (Array.isArray(value)) return \"array\";\n  return typeof value;\n};\n\nconst isSupported = (\n  value: unknown\n): value is undefined | number | bigint | Date => {\n  if (value === undefined || value instanceof Date) return true;\n\n  if (typeof value === \"bigint\") return true;\n\n  // Numbers must be finite (excludes NaN, Infinity, -Infinity)\n  if (typeof value === \"number\") return Number.isFinite(value);\n\n  return false;\n};\n\n/**\n * Validates whether two values are eligible for comparison using >= or <= operators.\n *\n * Supported types: `undefined`, `number`, `bigint`, and `Date`.\n *\n * @param a - The first value to compare.\n * @param b - The second value to compare.\n *\n * @returns {boolean} True if both values are of supported types.\n *\n * @throws {TypeError} If either value is of an unsupported type.\n * @memberOf module:decorator-validation\n */\nexport function isValidForGteOrLteComparison(a: any, b: any): boolean {\n  if (isSupported(a) && isSupported(b)) return true;\n\n  throw new TypeError(\n    sf(\n      COMPARISON_ERROR_MESSAGES.UNSUPPORTED_TYPES_COMPARISON,\n      getTypeName(a),\n      getTypeName(b)\n    )\n  );\n}\n\n/**\n * @summary Compares two values to determine if the first is less than the second.\n * @description Supports numbers and dates. Throws an error for unsupported types.\n *\n * @param {any} a - The first value to compare.\n * @param {any} b - The second value to compare against.\n *\n * @returns {boolean} True if `a` is less than `b`, false otherwise.\n *\n * @throws {Error} If either `a` or `b` is `null` or `undefined`.\n * @throws {TypeError} If values are of mismatched or unsupported types.\n * @memberOf module:decorator-validation\n */\nexport function isLessThan(a: any, b: any): boolean {\n  if ([null, undefined].includes(a) || [null, undefined].includes(b))\n    throw new Error(COMPARISON_ERROR_MESSAGES.NULL_OR_UNDEFINED_COMPARISON);\n\n  // Validate type compatibility\n  const aType = typeof a;\n  const bType = typeof b;\n\n  if (aType !== bType) {\n    // Allow number X bigint\n    if (aType === \"bigint\" && bType === \"number\")\n      return Number(a) < (b as number);\n    if (aType === \"number\" && bType === \"bigint\")\n      return (a as number) < Number(b);\n    throw new TypeError(\n      sf(COMPARISON_ERROR_MESSAGES.TYPE_MISMATCH_COMPARISON, aType, bType)\n    );\n  }\n\n  if (\n    (aType === \"number\" && bType === \"number\") ||\n    (aType === \"bigint\" && bType === \"bigint\")\n  ) {\n    if (Number.isNaN(a) || Number.isNaN(b))\n      throw new TypeError(COMPARISON_ERROR_MESSAGES.NAN_COMPARISON);\n    return a < b;\n  }\n\n  if (a instanceof Date && b instanceof Date) {\n    if (isNaN(a.getTime()) || isNaN(b.getTime()))\n      throw new TypeError(COMPARISON_ERROR_MESSAGES.INVALID_DATE_COMPARISON);\n    return a.getTime() < b.getTime();\n  }\n\n  throw new TypeError(\n    sf(\n      COMPARISON_ERROR_MESSAGES.UNSUPPORTED_TYPES_COMPARISON,\n      getTypeName(a),\n      getTypeName(b)\n    )\n  );\n}\n\n/**\n * Checks if `a` is greater than `b`.\n * Supports comparison for numbers and Date objects.\n *\n * @param {any} a - The value to validate.\n * @param {any} b - The value to compare against.\n *\n * @returns {boolean} True if `a` is greater than `b`, otherwise false.\n *\n * @throws {Error} If either `a` or `b` is `null` or `undefined`.\n * @throws {TypeError} If values are of mismatched or unsupported types.\n * @memberOf module:decorator-validation\n */\nexport function isGreaterThan(a: any, b: any): boolean {\n  if ([null, undefined].includes(a) || [null, undefined].includes(b))\n    throw new Error(COMPARISON_ERROR_MESSAGES.NULL_OR_UNDEFINED_COMPARISON);\n\n  const aType = typeof a;\n  const bType = typeof b;\n\n  if (aType !== bType) {\n    // Allow number X bigint\n    if (aType === \"bigint\" && bType === \"number\")\n      return Number(a) > (b as number);\n    if (aType === \"number\" && bType === \"bigint\")\n      return (a as number) > Number(b);\n    throw new Error(\n      sf(COMPARISON_ERROR_MESSAGES.TYPE_MISMATCH_COMPARISON, aType, bType)\n    );\n  }\n\n  if (\n    (aType === \"number\" && bType === \"number\") ||\n    (aType === \"bigint\" && bType === \"bigint\")\n  ) {\n    if (Number.isNaN(a) || Number.isNaN(b))\n      throw new TypeError(COMPARISON_ERROR_MESSAGES.NAN_COMPARISON);\n    return a > b;\n  }\n\n  if (a instanceof Date && b instanceof Date) {\n    if (isNaN(a.getTime()) || isNaN(b.getTime()))\n      throw new TypeError(COMPARISON_ERROR_MESSAGES.INVALID_DATE_COMPARISON);\n    return a.getTime() > b.getTime();\n  }\n\n  throw new TypeError(\n    sf(\n      COMPARISON_ERROR_MESSAGES.UNSUPPORTED_TYPES_COMPARISON,\n      getTypeName(a),\n      getTypeName(b)\n    )\n  );\n}\n"]}