import { z } from 'zod'
import {InjectionAware} from '../di'
import {ZodifyRecipient} from './ZodifyRecipient'
import {ZodifyRegistrar} from './ZodifyRegistrar'

export class InvalidSchemaMappingError extends Error {
    constructor(message = 'Unable to resolve schema for validator.') {
        super(message)
    }
}

export class Validator<T> extends InjectionAware implements ZodifyRecipient {
    __exZodifiedSchemata: number[] = []

    protected getZod(): z.ZodType<T> {
        // eslint-disable-next-line no-underscore-dangle
        if ( this.__exZodifiedSchemata.length < 1 ) {
            throw new InvalidSchemaMappingError()
        }

        // eslint-disable-next-line no-underscore-dangle
        const id = this.__exZodifiedSchemata[0]

        const type = this.make<ZodifyRegistrar>(ZodifyRegistrar).get(id)
        if ( !type ) {
            throw new InvalidSchemaMappingError()
        }

        return type
    }
}