import { AsTypescript } from "./domain";
import { Array } from "./array";
import { Record, Field } from "./record";
import { Union } from "./union";
import { String, Long } from "./primitives";

// primitives
let _ = () => {
  const instance = Array(String());
  type ActualType = AsTypescript<typeof instance>;
  type ExpectedType = string[];
  const _actualIsExpected = (a: ActualType): ExpectedType => a;
  const _expectedIsActual = (a: ExpectedType): ActualType => a;
};

// unions
_ = () => {
  const instance = Array(Union([String(), Long()]));
  type ActualType = AsTypescript<typeof instance>;
  type ExpectedType = (string | number)[];
  const _actualIsExpected = (a: ActualType): ExpectedType => a;
  const _expectedIsActual = (a: ExpectedType): ActualType => a;
};

// records
_ = () => {
  const instance = Array(
    Record("person", {
      name: Field(String()),
      age: Field(Long()),
    })
  );
  type ActualType = AsTypescript<typeof instance>;
  type ExpectedType = { name: string; age: number }[];
  const _actualIsExpected: ExpectedType = (null as unknown) as ActualType;
  const _expectedIsActual: ActualType = (null as unknown) as ExpectedType;
};

// other arrays
_ = () => {
  const instance = Array(
    Union([
      String(),
      Array(Record("person", { name: Field(String()), age: Field(Long()) })),
    ])
  );
  type ActualType = AsTypescript<typeof instance>;
  type ExpectedType = (string | { name: string; age: number }[])[];
  const _actualIsExpected: ExpectedType = (null as unknown) as ActualType;
  const _expectedIsActual: ActualType = (null as unknown) as ExpectedType;
};

describe("Array construction", () => {
  test("should construct a valid avro array type", () => {
    expect(Array(String())).toEqual({ type: "array", items: "string" });
  });
});