import { describe, expect, test } from "bun:test";
import twuiSerializeQuery from "./serialize-query";

describe("twuiSerializeQuery", () => {
    test("returns '?' for non-object input", () => {
        expect(twuiSerializeQuery("string" as any)).toBe("?");
    });

    test("returns '?' for array input", () => {
        expect(twuiSerializeQuery([1, 2] as any)).toBe("?");
    });

    test("returns '?' for null input", () => {
        expect(twuiSerializeQuery(null as any)).toBe("?");
    });

    test("serializes simple object", () => {
        const result = twuiSerializeQuery({ foo: "bar" });
        expect(result).toBe("?foo=bar");
    });

    test("serializes multiple keys", () => {
        const result = twuiSerializeQuery({ a: "1", b: "2" });
        expect(result).toContain("a=1");
        expect(result).toContain("b=2");
    });

    test("serializes numeric value", () => {
        const result = twuiSerializeQuery({ page: 2 });
        expect(result).toContain("page=2");
    });

    test("skips empty key", () => {
        const result = twuiSerializeQuery({ "": "value", foo: "bar" });
        expect(result).not.toContain("=value");
        expect(result).toContain("foo=bar");
    });

    test("skips falsy value", () => {
        const result = twuiSerializeQuery({ empty: "", foo: "bar" });
        expect(result).not.toContain("empty=");
        expect(result).toContain("foo=bar");
    });

    test("JSON-encodes object values", () => {
        const result = twuiSerializeQuery({ filter: { field: "name" } });
        expect(result).toContain("filter=");
        expect(result).toContain("field");
    });

    test("URL-encodes values", () => {
        const result = twuiSerializeQuery({ q: "hello world" });
        expect(result).toContain("q=hello%20world");
    });

    test("serializes boolean value as string", () => {
        const result = twuiSerializeQuery({ active: true as any });
        expect(result).toContain("active=true");
    });
});