// @ts-check

import * as blurhash from "../dist/blurhash-c-wasm.js";

describe("blurhash-c-wasm tests", () => {
	beforeAll(async () => {
		await blurhash.initWasm();
	});

	it("detects valid blurhash", () => {
		expect(blurhash.isValidBlurhash("LEHLk~WB2yk8pyo0adR*.7kCMdnj")).toBe(true);
		expect(blurhash.isValidBlurhash("LGF5]+Yk^6#M@-5c,1J5@[or[Q6.")).toBe(true);
		expect(blurhash.isValidBlurhash("L6PZfSjE.AyE_3t7t7R**0o#DgR4")).toBe(true);
		expect(blurhash.isValidBlurhash("LKO2:N%2Tw=w]~RBVZRi};RPxuwH")).toBe(true);
	});

	it("generates valid blurhash images", () => {
		expect(blurhash.decode("LEHLk~WB2yk8pyo0adR*.7kCMdnj", 1, 1)).toEqual(
			Uint8ClampedArray.of(134, 164, 176, 255)
		);
		expect(blurhash.decode("LGF5]+Yk^6#M@-5c,1J5@[or[Q6.", 1, 1)).toEqual(
			Uint8ClampedArray.of(176, 118, 163, 255)
		);
		expect(blurhash.decode("L6PZfSjE.AyE_3t7t7R**0o#DgR4", 1, 1)).toEqual(
			Uint8ClampedArray.of(229, 228, 226, 255)
		);
		expect(blurhash.decode("LKO2:N%2Tw=w]~RBVZRi};RPxuwH", 1, 1)).toEqual(
			Uint8ClampedArray.of(251, 192, 161, 255)
		);
	});

	it("detects invalid blurhash", () => {
		expect(blurhash.isValidBlurhash("1234")).toBe(false);
		expect(blurhash.isValidBlurhash("sus")).toBe(false);
	});

	it("don't accept less then the required paramaters in the decode function", () => {
		// @ts-expect-error
		expect(() => blurhash.decode(undefined)).toThrow(
			new Error("You are required to give the Blurhash string.")
		);
		// @ts-expect-error
		expect(() => blurhash.decode("test")).toThrow(
			new Error("You are required to give the width.")
		);
		// @ts-expect-error
		expect(() => blurhash.decode("test", 32)).toThrow(
			new Error("You are required to give the height.")
		);
	});
});