form-field-control.ts
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form-field-control.ts
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	import { Context } from "koa";
	import { FlatTemplatable } from "tempstream";
	import { FormField } from "../fields/field";
	import { FieldValueType, FormDataValue } from "../form";
	import { FormControl } from "./form-control";

	export type FormFieldsToTypes<FormFields extends readonly FormField[]> = {
	[Index in keyof FormFields]: FormFields[Index] extends FormField
	? FieldValueType<FormFields[Index]>
	: never;
	};

	export abstract class FormFieldControl extends FormControl {
	role = <const>"input";
	constructor(public fields: FormField[]) {
	super();
	}

	abstract render(
	ctx: Context,
	data: Record<string, FormDataValue>
	): FlatTemplatable \| Promise<FlatTemplatable>;
	}