import { expect, test } from "bun:test";
import { buildApiRequest } from "../src/api-request.ts";
import { REACTIVE_RUNTIME } from "../../csr/src/reactive-runtime.ts";

test("GET builds a query string", () => {
  expect(buildApiRequest("/api/users", "GET", { name: "Ajay" }).url).toBe("/api/users?name=Ajay");
});

test("GET omits undefined, null and empty string", () => {
  const built = buildApiRequest("/api/users", "GET", {
    name: "Ajay",
    age: undefined,
    team: null,
    note: "",
  });

  expect(built.url).toBe("/api/users?name=Ajay");
});

test("GET keeps 0 and false", () => {
  // A filter of 0 or false is a real value; dropping it silently would be a bug.
  const built = buildApiRequest("/api/users", "GET", { count: 0, active: false });

  expect(built.url).toContain("count=0");
  expect(built.url).toContain("active=false");
});

test("GET has no body", () => {
  expect(buildApiRequest("/api/users", "GET", { name: "Ajay" }).body).toBeUndefined();
});

test("POST sends a JSON body and no query", () => {
  const built = buildApiRequest("/api/users", "POST", { name: "Ajay" });

  expect(built.url).toBe("/api/users");
  expect(built.body).toBe(JSON.stringify({ name: "Ajay" }));
  expect(built.contentType).toBe("application/json");
});

test("POST with no input sends an empty object", () => {
  expect(buildApiRequest("/api/users", "POST", undefined).body).toBe("{}");
});

test("values are encoded", () => {
  expect(buildApiRequest("/api/users", "GET", { name: "a b&c" }).url).toBe(
    "/api/users?name=a%20b%26c",
  );
});

test("the browser runtime and the shared builder agree", () => {
  // Cheap structural guard: the runtime must apply the same omission rule.
  // If someone changes one side's rules, this fails.
  expect(REACTIVE_RUNTIME).toContain('value === ""');
  expect(REACTIVE_RUNTIME).toContain("application/json");
});