import { test, expect } from "bun:test";
import { compileRoutePattern, generateRoutesFile, matchRoute, type Route } from "../src/index.ts";

function route(raw: string): Route {
  return { raw, file: raw, ...compileRoutePattern(raw) };
}

test("generateRoutesFile emits a Routes map with param types", () => {
  const code = generateRoutesFile([route("/"), route("/about"), route("/users/[id]")]);
  expect(code).toContain('"/": Record<string, never>;');
  expect(code).toContain('"/about": Record<string, never>;');
  expect(code).toContain('"/users/[id]": { "id": string };');
  expect(code).toContain("export function href");
});

test("generated href() fills params and leaves static paths intact", async () => {
  // Compile + import the generated module to exercise href() for real.
  const code = generateRoutesFile([
    route("/"),
    route("/users/[id]"),
    route("/org/[org]/team/[team]"),
  ]);
  const { tmpdir } = await import("node:os");
  const { writeFileSync, mkdirSync } = await import("node:fs");
  const { join } = await import("node:path");
  const { pathToFileURL } = await import("node:url");
  const dir = join(tmpdir(), "wire-routes-test");
  mkdirSync(dir, { recursive: true });
  const file = join(dir, `r${Date.now()}.ts`);
  writeFileSync(file, code);
  const mod = (await import(pathToFileURL(file).href)) as {
    href: (p: string, params?: Record<string, string>) => string;
  };
  expect(mod.href("/")).toBe("/");
  expect(mod.href("/users/[id]", { id: "42" })).toBe("/users/42");
  expect(mod.href("/org/[org]/team/[team]", { org: "acme", team: "core" })).toBe(
    "/org/acme/team/core",
  );
  expect(mod.href("/users/[id]", { id: "a b" })).toBe("/users/a%20b"); // encoded
});

test("malformed encoded route params return no match instead of throwing", () => {
  expect(matchRoute([route("/users/[id]")], "/users/%E0%A4%A")).toBeNull();
});