form-types.ts
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form-types.ts
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	import type { File as SealiousFile } from "sealious";
	import type { FlatTemplatable } from "tempstream";
	import type { FormField } from "./fields/field.js";

	export type FormDataPrimitive = string \| string[] \| number \| undefined;
	export type FormDataValue =
	\| FormDataPrimitive
	\| Record<string, FormDataPrimitive>
	\| SealiousFile;

	export type FieldValueType<F extends FormField> = F extends FormField<infer R>
	? R
	: never;

	export type FormFieldsToValues<
	F extends Record<string, FormField<boolean, keyof F>>
	> = {
	[Property in keyof F]: FieldValueType<F[Property]>;
	};

	export type FormMessage = { type: "info" \| "success" \| "error"; text: string };

	export type FormData<Fieldnames extends string = string> = {
	raw_values: Record<Fieldnames, FormDataValue>;
	messages: FormMessage[];
	};

	export type FormReaction =
	\| { action: "stay"; content: FlatTemplatable; messages?: FormMessage[] }
	\| { action: "redirect"; url: string; messages?: FormMessage[] };