import * as selectively from "selectively"
import * as base from "@payfunc/model-base"

export type Items = base.Item[]
export namespace Items {
	export function is(value: any | Items): value is Items {
		return Array.isArray(value) && value.every(base.Item.is)
	}
	export function from(value: number | base.Item | base.Item[] | undefined): Items | undefined {
		return Array.isArray(value) && value.every(base.Item.is)
			? value
			: base.Item.is(value)
			? [value]
			: typeof value == "number" && !isNaN(value)
			? [{ price: value }]
			: undefined
	}
	export const template = new selectively.Type.Array([
		new selectively.Type.Object({
			number: new selectively.Type.String(),
			name: new selectively.Type.String(),
			price: new selectively.Type.Number(),
			quantity: new selectively.Type.Number(),
			unit: new selectively.Type.String(),
			vat: new selectively.Type.Number(),
			rebate: new selectively.Type.Number(),
		}),
	])
}