import assert from "node:assert/strict";
import test from "node:test";

import { isSelfHostedIdentityEnabled, readIdentityConfig, readSelfHostedIdentityConfig } from "../src/modules/identity/config.ts";

const selfHostedEnvironment = {
  AUTH_PROVIDER: "self-hosted",
  SELF_HOSTED_IDENTITY_ENABLED: "true",
  IDENTITY_DATABASE_URL: "postgresql://identity_runtime:test-password@postgres:5432/jyotisha",
  AUTH_USER_ORIGIN: "https://staging.jyotisha.chat",
  ADMIN_USER_ORIGIN: "https://admin.staging.jyotisha.chat",
  BETTER_AUTH_USER_SECRET: "user-secret-that-is-at-least-32-bytes-long",
  RESEND_API_KEY: "re_test_key_that_must_not_be_printed",
  RESEND_FROM_EMAIL: "Jyotisha Staging <login@staging.jyotisha.chat>",
};

test("identity provider defaults to supabase", () => {
  assert.deepEqual(readIdentityConfig({}), { provider: "supabase" });
  assert.equal(isSelfHostedIdentityEnabled({}), false);
});

test("identity config accepts the two exact self-hosted origins and one secret", () => {
  const config = readIdentityConfig(selfHostedEnvironment);
  assert.equal(config.provider, "self-hosted");
  if (config.provider !== "self-hosted") assert.fail();
  assert.equal(config.userOrigin, "https://staging.jyotisha.chat");
  assert.equal(config.adminOrigin, "https://admin.staging.jyotisha.chat");
  assert.equal(config.userSecret, selfHostedEnvironment.BETTER_AUTH_USER_SECRET);
  assert.equal("adminSecret" in config, false);
});

test("self-hosted identity ignores retired admin-surface variables", () => {
  const config = readSelfHostedIdentityConfig({
    ...selfHostedEnvironment,
    AUTH_ADMIN_ORIGIN: "invalid-retired-value",
    BETTER_AUTH_ADMIN_SECRET: "short",
  });
  assert.equal(config.userOrigin, selfHostedEnvironment.AUTH_USER_ORIGIN);
  assert.equal(config.adminOrigin, selfHostedEnvironment.ADMIN_USER_ORIGIN);
});

test("self-hosted provider requires its enable flag", () => {
  assert.throws(() => readIdentityConfig({ ...selfHostedEnvironment, SELF_HOSTED_IDENTITY_ENABLED: "false" }), /must be true/);
});

test("self-hosted identity validates active database, origin, secret, and sender", () => {
  assert.throws(() => readIdentityConfig({ ...selfHostedEnvironment, IDENTITY_DATABASE_URL: "https://invalid" }), /PostgreSQL URL/);
  assert.throws(() => readIdentityConfig({ ...selfHostedEnvironment, AUTH_USER_ORIGIN: "http://staging.jyotisha.chat" }), /must use HTTPS/);
  assert.throws(() => readIdentityConfig({ ...selfHostedEnvironment, ADMIN_USER_ORIGIN: "https://admin.staging.jyotisha.chat/path" }), /without a path/);
  assert.throws(() => readIdentityConfig({ ...selfHostedEnvironment, ADMIN_USER_ORIGIN: selfHostedEnvironment.AUTH_USER_ORIGIN }), /must differ/);
  assert.throws(() => readIdentityConfig({ ...selfHostedEnvironment, BETTER_AUTH_USER_SECRET: "short" }), /at least 32/);
  assert.throws(() => readIdentityConfig({ ...selfHostedEnvironment, RESEND_FROM_EMAIL: "invalid" }), /valid email/);
});

test("localhost may use two distinct HTTP origins", () => {
  const config = readIdentityConfig({
    ...selfHostedEnvironment,
    AUTH_USER_ORIGIN: "http://localhost:3000",
    ADMIN_USER_ORIGIN: "http://admin.localhost:3000",
  });
  assert.equal(config.provider, "self-hosted");
});

test("identity test OTP channel is opt-in and strictly six digits", () => {
  const without = readIdentityConfig(selfHostedEnvironment);
  assert.equal(without.provider === "self-hosted" ? without.testOtp : "unexpected", null);

  const withOtp = readIdentityConfig({ ...selfHostedEnvironment, IDENTITY_TEST_OTP: "123456" });
  assert.equal(withOtp.provider === "self-hosted" ? withOtp.testOtp : null, "123456");

  assert.throws(
    () => readIdentityConfig({ ...selfHostedEnvironment, IDENTITY_TEST_OTP: "12345" }),
    /must be a 6-digit/,
  );
  assert.throws(
    () => readIdentityConfig({ ...selfHostedEnvironment, IDENTITY_TEST_OTP: "abcdef" }),
    /must be a 6-digit/,
  );
});