import { expect, test } from "bun:test";
import type { Context } from "@wrnexus/core";
import { createPluginRunner } from "@wrnexus/plugin";
import { authPlugin, validateProductionAuthConfig } from "../src/plugin.ts";
import { AUTH_ROUTE_DEFINITIONS } from "../src/routes/definitions.ts";
import { readFileSync } from "node:fs";
import { createAuthEngine } from "../src/engine.ts";
import { MemoryAuthStore } from "../src/stores/memory.ts";
import { invokeAuthHandler } from "../src/routes/api.ts";

function routeContext(request: Request): Context {
  const values = new Map<string, unknown>();
  return {
    req: request,
    url: new URL(request.url),
    params: {},
    locals: {},
    lang: "en",
    t: (key: string) => key,
    ip: "127.0.0.1",
    user: null,
    cookies: {
      get: (name: string) => (name === "wrn-csrf" ? "plugin-test-csrf-token" : undefined),
    } as Context["cookies"],
    localStorage: {} as Context["localStorage"],
    session: {
      id: () => "plugin-test-session",
      get: <T>(key: string) => values.get(key) as T | undefined,
      getAll: () => Object.fromEntries(values),
      set: (key: string, value: unknown) => {
        values.set(key, value);
      },
      delete: (key: string) => {
        values.delete(key);
      },
      regenerate: () => {},
      clear: () => {
        values.clear();
      },
    },
  } as Context;
}

test("plugin contributes components, runtime, styles, migration, and toolbar", async () => {
  const metadata = new Map<string, unknown>();
  const runner = createPluginRunner(
    authPlugin({ includeRoutes: true, includeMigrations: true, includeMiddleware: true }),
    {
      root: process.cwd(),
      mode: "development",
      command: "dev",
      metadata,
      warn() {},
    },
  );
  const contributions = await runner.contributions();
  expect(contributions.componentDirs).toHaveLength(1);
  expect(contributions.clientRuntimes[0]).toMatchObject({ id: "auth", singleton: true });
  expect(contributions.styles[0]?.id).toBe("auth-components");
  expect(contributions.migrations.map((migration) => migration.id)).toEqual([
    "wrnexus-auth-001",
    "wrnexus-auth-002-otp-purpose",
  ]);
  expect(contributions.routes.length).toBeGreaterThanOrEqual(30);
  expect(contributions.middleware).toHaveLength(1);
});

test("production auth validation rejects development secrets and origins", () => {
  expect(() =>
    validateProductionAuthConfig(
      { baseUrl: "http://localhost:3000" },
      { AUTH_SECRET: "change-me" },
    ),
  ).toThrow("AUTH_SECRET");
  expect(() =>
    validateProductionAuthConfig(
      { baseUrl: "http://app.example" },
      { AUTH_SECRET: "a-production-secret-that-is-longer-than-thirty-two-characters" },
    ),
  ).toThrow("HTTPS");
});

test("unconfigured automatic discovery fails closed for routes, middleware, and migrations", async () => {
  const metadata = new Map<string, unknown>();
  const runner = createPluginRunner(authPlugin(), {
    root: process.cwd(),
    mode: "development",
    command: "dev",
    metadata,
    warn() {},
  });

  const contributions = await runner.contributions();
  expect(contributions.routes).toHaveLength(0);
  expect(contributions.middleware).toHaveLength(0);
  expect(contributions.migrations).toHaveLength(0);
  expect(contributions.componentDirs).toHaveLength(1);
  expect(contributions.clientRuntimes).toHaveLength(1);
});

test("config.auth controls route groups and migrations without explicit plugin options", async () => {
  const metadata = new Map<string, unknown>();
  const runner = createPluginRunner(authPlugin(), {
    root: process.cwd(),
    mode: "development",
    command: "dev",
    metadata,
    warn() {},
  });
  await runner.configure({
    auth: {
      engine: {} as never,
      migrations: false,
      routes: { enabled: true, registration: false, passkeys: false },
    },
  });
  const contributions = await runner.contributions();
  expect(contributions.migrations).toHaveLength(0);
  expect(contributions.routes.some((route) => route.path === "/api/auth/register")).toBe(false);
  expect(contributions.routes.some((route) => route.path.includes("/passkeys/"))).toBe(false);
  expect(contributions.routes.some((route) => route.path === "/api/auth/login")).toBe(true);
});

test("a hook set on config.auth.engine fires when a request goes through the route layer", async () => {
  const calls: string[] = [];
  const engine = createAuthEngine({
    store: new MemoryAuthStore(),
    secret: "plugin-navigation-hooks-secret-longer-than-thirty-two-characters",
    onSignedIn(ctx, returnTo) {
      calls.push(`in:${returnTo}`);
      return Response.redirect(new URL(returnTo ?? "/account", ctx.url), 303);
    },
    onSignedOut(ctx) {
      calls.push("out");
      return Response.redirect(new URL("/sign-in", ctx.url), 303);
    },
  });
  await engine.register({
    email: "plugin-navigation@example.com",
    password: "StrongPassword123",
  });

  const runner = createPluginRunner(authPlugin(), {
    root: process.cwd(),
    mode: "development",
    command: "dev",
    metadata: new Map(),
    warn() {},
  });

  await runner.configure({
    auth: { engine, routes: true },
  });

  const loginResponse = await invokeAuthHandler(
    "login",
    routeContext(
      new Request("https://example.test/api/auth/login", {
        method: "POST",
        headers: {
          "content-type": "application/json",
          "x-csrf-token": "plugin-test-csrf-token",
        },
        body: JSON.stringify({
          identifier: "plugin-navigation@example.com",
          password: "StrongPassword123",
          returnTo: "/dashboard",
        }),
      }),
    ),
  );
  expect(loginResponse.status).toBe(303);
  expect(loginResponse.headers.get("location")).toBe("https://example.test/dashboard");

  const logoutResponse = await invokeAuthHandler(
    "logout",
    routeContext(
      new Request("https://example.test/api/auth/logout", {
        method: "POST",
        headers: { "x-csrf-token": "plugin-test-csrf-token" },
      }),
    ),
  );
  expect(logoutResponse.status).toBe(303);
  expect(logoutResponse.headers.get("location")).toBe("https://example.test/sign-in");
  expect(calls).toEqual(["in:/dashboard", "out"]);
});

test("auth runtime contains built-in browser schemas", async () => {
  const metadata = new Map<string, unknown>();
  const runner = createPluginRunner(authPlugin({ includeMigrations: false }), {
    root: process.cwd(),
    mode: "development",
    command: "dev",
    metadata,
    warn() {},
  });
  const contributions = await runner.contributions();
  expect(contributions.clientRuntimes[0]?.source).toContain("auth-password-request");
  expect(contributions.clientRuntimes[0]?.source).toContain("auth-register");
});

test("each package auth route uses a route-specific entry module", async () => {
  const metadata = new Map<string, unknown>();
  const runner = createPluginRunner(
    authPlugin({
      includeRoutes: true,
      includeMigrations: false,
      includeMiddleware: false,
    }),
    {
      root: process.cwd(),
      mode: "development",
      command: "dev",
      metadata,
      warn() {},
    },
  );

  const contributions = await runner.contributions();
  const entries = contributions.routes.map((route) => route.entry);
  const passwordRequest = contributions.routes.find(
    (route) => route.path === "/api/auth/password/request",
  );

  expect(new Set(entries).size).toBe(entries.length);
  expect(
    passwordRequest?.entry.replace(/\\/g, "/").endsWith("/src/routes/api/password-request.ts"),
  ).toBe(true);
  for (const definition of AUTH_ROUTE_DEFINITIONS) {
    const route = contributions.routes.find((item) => item.path === definition.path);
    expect(route).toBeDefined();
    const source = readFileSync(route!.entry, "utf8");
    expect(source).toContain(`invokeAuthHandler("${definition.handler}"`);
    expect(source.includes("dispatchAuthRoute")).toBe(false);
    for (const method of definition.methods) {
      expect(source).toContain(`export function ${method}`);
    }
  }
});
test("config.auth registers package routes", async () => {
  const metadata = new Map<string, unknown>();

  const runner = createPluginRunner(authPlugin(), {
    root: process.cwd(),
    mode: "development",
    command: "dev",
    metadata,
    warn() {},
  });

  await runner.configure({
    auth: {
      engine: {} as never,
      routes: true,
      middleware: true,
      migrations: false,
    },
  });

  const contributions = await runner.contributions();

  expect(contributions.routes.some((route) => route.path === "/api/auth/password/request")).toBe(
    true,
  );

  expect(contributions.routes.some((route) => route.path === "/api/auth/register")).toBe(true);

  expect(contributions.routes.some((route) => route.path === "/api/auth/login")).toBe(true);

  expect(contributions.middleware).toHaveLength(1);

  expect(contributions.migrations).toHaveLength(0);
});
test("config.auth contributes a reusable forward-auth verification route", async () => {
  const runner = createPluginRunner(authPlugin(), {
    root: process.cwd(),
    mode: "development",
    command: "dev",
    metadata: new Map<string, unknown>(),
    warn() {},
  });
  await runner.configure({
    auth: {
      engine: {} as never,
      routes: true,
    },
  });
  const contributions = await runner.contributions();
  expect(contributions.routes.some((route) => route.path === "/api/auth/session/verify")).toBe(
    true,
  );
});

test("config.auth can disable route groups", async () => {
  const metadata = new Map<string, unknown>();

  const runner = createPluginRunner(authPlugin(), {
    root: process.cwd(),
    mode: "development",
    command: "dev",
    metadata,
    warn() {},
  });

  await runner.configure({
    auth: {
      engine: {} as never,
      migrations: false,
      routes: {
        enabled: true,
        password: true,
        passkeys: false,
      },
    },
  });

  const contributions = await runner.contributions();

  expect(contributions.routes.some((route) => route.path === "/api/auth/password/request")).toBe(
    true,
  );

  expect(contributions.routes.some((route) => route.path.includes("/passkeys/"))).toBe(false);
});