import { describe, expect, it } from "vitest";

import {
  createRedirectLoopGuard,
  decideRouteAccess,
} from "../../src/presentation/routes/navigation-policy.js";
import { ROUTE_REGISTRY } from "../../src/contracts/routes.js";

describe("route registry", () => {
  it("matches the stable registry snapshot", () => {
    expect(ROUTE_REGISTRY).toMatchInlineSnapshot(`
      {
        "APP_HOME": {
          "access": "public",
          "chunkId": "route-home",
          "errorSurface": "route-boundary",
          "loadingSurface": "app-shell",
          "paramsSchema": null,
          "path": "/",
          "routeId": "APP_HOME",
          "searchSchema": null,
        },
        "NOT_FOUND": {
          "access": "public",
          "chunkId": "route-not-found",
          "errorSurface": "not-found",
          "loadingSurface": "none",
          "paramsSchema": null,
          "path": "*",
          "routeId": "NOT_FOUND",
          "searchSchema": null,
        },
        "SAMPLE_RESOURCE_LIST": {
          "access": "integration-defined",
          "chunkId": "route-sample-resources",
          "errorSurface": "feature-boundary",
          "loadingSurface": "sample-resource-list",
          "paramsSchema": null,
          "path": "/sample/resources",
          "routeId": "SAMPLE_RESOURCE_LIST",
          "searchSchema": "SampleResourceListQuery",
        },
      }
    `);
  });

  it("treats client access as a UX hint, not authorization", () => {
    expect(decideRouteAccess("APP_HOME", "unauthenticated")).toEqual({
      allowed: true,
      action: "none",
    });
    expect(decideRouteAccess("SAMPLE_RESOURCE_LIST", "unauthenticated")).toEqual({
      allowed: false,
      action: "show-sign-in",
    });
    expect(decideRouteAccess("SAMPLE_RESOURCE_LIST", "authenticated")).toEqual({
      allowed: true,
      action: "none",
    });
  });

  it("allows at most one automatic redirect per source-target pair", () => {
    const guard = createRedirectLoopGuard();
    expect(guard.allow("/private", "/signin")).toBe(true);
    expect(guard.allow("/private", "/signin")).toBe(false);
    expect(guard.allow("/signin", "/signin")).toBe(false);
  });
});