Start auth provider system

src/validation/Validator.ts

@@ -1,4 +1,4 @@
-import { z } from 'zod'
+import {z, ZodType} from 'zod'
 import {InjectionAware} from '../di'
 import {ErrorWithContext, TypeTag} from '../util'
 import {ZodifyRecipient} from './ZodifyRecipient'
@@ -8,7 +8,7 @@ import {Logging} from '../service/Logging'
 /** Type tag for a validated runtime type. */
 export type Valid<T> = TypeTag<'@extollo/lib:Valid'> & T
 
-export type ValidatorFactory<T extends Validator<T>> = T | (() => T)
+export type ValidatorFactory<T> = Validator<T> | (() => Validator<T>)
 
 /**
  * Error thrown if the schema for a validator cannot be located.
@@ -45,8 +45,16 @@ export class ValidationError<T> extends ErrorWithContext {
  * Validates input data against a schema at runtime.
  */
 export class Validator<T> extends InjectionAware implements ZodifyRecipient {
+    public static fromSchema<T2>(type: ZodType<T2>): Validator<T2> {
+        const inst = new Validator<T2>()
+        inst.schema = type
+        return inst
+    }
+
     __exZodifiedSchemata: number[] = []
 
+    protected schema?: ZodType<T>
+
     /**
      * Parse the input data against the schema.
      * @throws ValidationError
@@ -90,6 +98,10 @@ export class Validator<T> extends InjectionAware implements ZodifyRecipient {
 
     /** Get the Zod schema. */
     protected getZod(): z.ZodType<T> {
+        if ( this.schema ) {
+            return this.schema
+        }
+
         // eslint-disable-next-line no-underscore-dangle
         if ( this.__exZodifiedSchemata.length < 1 ) {
             throw new InvalidSchemaMappingError()