feat: exposed argsFromObj for utility-style use

package.json

@@ -1,7 +1,7 @@
 {
   "name": "ctor-ensure",
   "author": "BlvckBytes",
-  "version": "1.0.12",
+  "version": "1.0.13",
   "license": "GPL-3.0",
   "repository": {
     "type": "git",

src/ctor-ensure.decorator.ts

@@ -12,7 +12,7 @@ export const META_KEY_VALIDATION = 'CTOR_ENSURE:VALIDATION';
 export const META_KEY_DISPLAYNAME = 'CTOR_ENSURE:DISPLAYNAME';
 
 // Unique metadata valiation key
-const META_KEY_VALIDATION_UNIQUE = (displayname: string) => `CTOR_ENSURE:${displayname}:VALIDATION`;
+export const META_KEY_VALIDATION_UNIQUE = (displayname: string) => `CTOR_ENSURE:${displayname}:VALIDATION`;
 
 export const classRegistry = <{ [ key: string ]: {
   clazz: Constructable,

src/ctor-validator.ts

@@ -1,19 +1,15 @@
-import { CtorEnsureArgError } from '.';
+import { Constructable, CtorEnsureArgError, META_KEY_DISPLAYNAME } from '.';
 import { getActiveControls, classRegistry, validateClassCtor } from './ctor-ensure.decorator';
 
 /**
- * Validate a constructor from the k-v pairs of a plain object
- * @param className Schema name
- * @param value Plain object containing contructor fields
- * @param templateLang Language to use for rendering ensure templates
- * @returns List of errors
+ * Extract all constructor arguments form a plain object
+ * @param clazz Class to get constructor args from
+ * @param value Plain object to extract from
+ * @returns List of arguments in right order
  */
-const validateCtor = (className: string, value: any, templateLang = ''): CtorEnsureArgError[] | null => {
-  // Find target class
-  const clazz = classRegistry[className]?.clazz;
-  if (!clazz) return null;
-
+export const argsFromObj = (clazz: Constructable, value: any): any[] => {
   // Get all controls of this class and find the highest validated ctor index
+  const className = Reflect.getOwnMetadata(META_KEY_DISPLAYNAME, clazz);
   const ctls = getActiveControls(clazz, className, []);
   const maxCtorInd = ctls.reduce((acc, curr) => (curr.ctorInd > acc ? curr.ctorInd : acc), 0);
 
@@ -24,8 +20,21 @@ const validateCtor = (className: string, value: any, templateLang = ''): CtorEns
     ctorArgs[ctl.ctorInd] = currValue;
   });
 
-  // Call validation
-  return validateClassCtor(className, ctorArgs, templateLang);
+  return ctorArgs;
 };
 
-export default validateCtor;
+/**
+ * Validate a constructor from the k-v pairs of a plain object
+ * @param className Schema name
+ * @param value Plain object containing contructor fields
+ * @param templateLang Language to use for rendering ensure templates
+ * @returns List of errors
+ */
+export const validateCtor = (className: string, value: any, templateLang = ''): CtorEnsureArgError[] | null => {
+  // Find target class
+  const clazz = classRegistry[className]?.clazz;
+  if (!clazz) return null;
+
+  // Call validation
+  return validateClassCtor(className, argsFromObj(clazz, value), templateLang);
+};

src/index.ts

@@ -54,8 +54,8 @@ export { ValidationControl } from './validation-control.interface';
 export { Constructable } from './constructable.type';
 
 // Misc
-export { META_KEY_VALIDATION, META_KEY_DISPLAYNAME } from './ctor-ensure.decorator';
+export { META_KEY_VALIDATION, META_KEY_DISPLAYNAME, META_KEY_VALIDATION_UNIQUE } from './ctor-ensure.decorator';
 export { registerTemplateFunction, getRegisteredTemplateFunctions, template } from './description-template.factory';
 export { strOpt, pluralize, evalDesc } from './util';
-export { default as validateCtor } from './ctor-validator';
+export { validateCtor, argsFromObj } from './ctor-validator';
 export { default as UnknownLanguageException } from './unknown-language.exception';