schemas/libraries/io-ts/download.tscontent_copy
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import * as t from "io-ts";
import * as td from "io-ts-types";

import type { ProductData } from "#src";

const stringWithLength = (min: number, max: number) =>
  t.refinement(
    t.string,
    (s) => s.length >= min && s.length <= max,
    `string with length between ${min} and ${max}`,
  );

const numberInRange = (min: number, max: number) =>
  t.refinement(t.number, (n) => n >= min && n <= max, `number between ${min} and ${max}`);

// URL validation (basic)
const urlString = t.refinement(t.string, (s) => URL.canParse(s), "url");

const literals = <T extends string>([l1, l2, ...literals]: [T, T, ...T[]]) =>
  t.union([t.literal(l1), t.literal(l2), ...literals.map((l) => t.literal(l))]);

const ImageData = t.type({
  id: t.number,
  created: td.date,
  title: stringWithLength(1, 100),
  type: literals(["jpg", "png"]),
  size: t.number,
  url: urlString,
});

const RatingData = t.type({
  id: t.number,
  stars: numberInRange(0, 5),
  title: stringWithLength(1, 100),
  text: stringWithLength(1, 1000),
  images: t.array(ImageData),
});

const productSchema = t.type(
  {
    id: t.number,
    created: td.date,
    title: stringWithLength(1, 100),
    brand: stringWithLength(1, 30),
    description: stringWithLength(1, 500),
    price: numberInRange(1, 10000),
    discount: t.union([numberInRange(1, 100), t.null]),
    quantity: numberInRange(0, 10),
    tags: t.array(stringWithLength(1, 30)),
    images: t.array(ImageData),
    ratings: t.array(RatingData),
  },
  "ProductData",
) satisfies t.Type<ProductData>;

productSchema.decode({});