import { tap, expect } from '@git.zone/tstest/tapbundle';
import { WorkAppMailManager } from '../ts/email/classes.workapp-mail-manager.js';
import type { IUnifiedEmailServerOptions } from '@push.rocks/smartmta';

class MemoryStorageManager {
  public store = new Map<string, string>();

  public async get(key: string): Promise<string | null> {
    return this.store.get(key) || null;
  }

  public async set(key: string, value: string): Promise<void> {
    this.store.set(key, value);
  }
}

const createDcRouterStub = () => {
  const storageManager = new MemoryStorageManager();
  const emailConfig: IUnifiedEmailServerOptions = {
    hostname: 'mail.example.com',
    ports: [25, 587, 465],
    domains: [
      {
        domain: 'example.com',
        dnsMode: 'external-dns',
      },
    ],
    routes: [
      {
        name: 'operator-route',
        match: { recipients: 'ops@example.com' },
        action: { type: 'reject', reject: { code: 550, message: 'not here' } },
      },
    ],
    auth: {
      users: [{ username: 'operator', password: 'secret' }],
    },
  };
  const dcRouterRef: any = {
    storageManager,
    options: { emailConfig },
    emailServer: {
      updateOptions: (patch: Partial<IUnifiedEmailServerOptions>) => {
        dcRouterRef.options.emailConfig = {
          ...dcRouterRef.options.emailConfig,
          ...patch,
        };
      },
    },
    updateEmailRoutes: async (routes: IUnifiedEmailServerOptions['routes']) => {
      dcRouterRef.options.emailConfig.routes = routes;
    },
  };
  return { dcRouterRef, storageManager };
};

tap.test('WorkAppMailManager syncs SMTP identity and inbound smartmta route', async () => {
  const { dcRouterRef } = createDcRouterStub();
  const manager = new WorkAppMailManager(dcRouterRef);

  const createResult = await manager.syncMailIdentity({
    ownership: {
      workHosterType: 'onebox',
      workHosterId: 'box-1',
      workAppId: 'app-1',
    },
    localPart: 'Hello',
    domain: 'Example.com',
    inbound: {
      enabled: true,
      targetHost: '10.0.0.2',
      targetPort: 2525,
    },
  }, 'tester');

  expect(createResult.success).toEqual(true);
  expect(createResult.action).toEqual('created');
  expect(createResult.identity?.address).toEqual('hello@example.com');
  expect(createResult.identity?.smtp.username.startsWith('workapp-')).toEqual(true);
  expect((createResult.identity as any).smtpPassword).toBeUndefined();
  expect(createResult.smtpCredentials?.password.length).toBeGreaterThan(20);

  const generatedRoute = dcRouterRef.options.emailConfig.routes.find((route: any) => route.name.startsWith('workapp-mail-'));
  expect(generatedRoute.match.recipients).toEqual('hello@example.com');
  expect(generatedRoute.action.forward.host).toEqual('10.0.0.2');
  expect(generatedRoute.action.forward.port).toEqual(2525);
  expect(generatedRoute.action.forward.addHeaders['X-Dcrouter-WorkApp-Id']).toEqual('app-1');
  expect(dcRouterRef.options.emailConfig.routes.some((route: any) => route.name === 'operator-route')).toEqual(true);

  const generatedUser = dcRouterRef.options.emailConfig.auth.users.find((user: any) => user.username.startsWith('workapp-'));
  expect(generatedUser.password).toEqual(createResult.smtpCredentials?.password);
  expect(dcRouterRef.options.emailConfig.auth.users.some((user: any) => user.username === 'operator')).toEqual(true);

  const listResult = await manager.listMailIdentities({ workAppId: 'app-1' });
  expect(listResult.length).toEqual(1);
  expect(listResult[0].address).toEqual('hello@example.com');
});

tap.test('WorkAppMailManager updates, resets credentials, and deletes identities', async () => {
  const { dcRouterRef } = createDcRouterStub();
  const manager = new WorkAppMailManager(dcRouterRef);
  const ownership = {
    workHosterType: 'onebox' as const,
    workHosterId: 'box-1',
    workAppId: 'app-1',
  };

  const createResult = await manager.syncMailIdentity({
    ownership,
    localPart: 'hello',
    domain: 'example.com',
    inbound: { enabled: true, targetHost: '10.0.0.2', targetPort: 2525 },
  }, 'tester');
  const firstPassword = createResult.smtpCredentials!.password;

  const updateResult = await manager.syncMailIdentity({
    ownership,
    localPart: 'hello',
    domain: 'example.com',
    inbound: { enabled: true, targetHost: '10.0.0.3', targetPort: 2526 },
  }, 'tester');
  expect(updateResult.action).toEqual('updated');
  expect(updateResult.smtpCredentials).toBeUndefined();
  const generatedUser = dcRouterRef.options.emailConfig.auth.users.find((user: any) => user.username.startsWith('workapp-'));
  expect(generatedUser.password).toEqual(firstPassword);
  const generatedRoute = dcRouterRef.options.emailConfig.routes.find((route: any) => route.name.startsWith('workapp-mail-'));
  expect(generatedRoute.action.forward.host).toEqual('10.0.0.3');

  const resetResult = await manager.syncMailIdentity({
    ownership,
    localPart: 'hello',
    domain: 'example.com',
    resetSmtpPassword: true,
  }, 'tester');
  expect(resetResult.smtpCredentials?.password !== firstPassword).toEqual(true);

  const deleteResult = await manager.syncMailIdentity({
    ownership,
    localPart: 'hello',
    domain: 'example.com',
    delete: true,
  }, 'tester');
  expect(deleteResult.action).toEqual('deleted');
  expect(dcRouterRef.options.emailConfig.routes.some((route: any) => route.name.startsWith('workapp-mail-'))).toEqual(false);
  expect(dcRouterRef.options.emailConfig.auth.users.some((user: any) => user.username.startsWith('workapp-'))).toEqual(false);
  expect(dcRouterRef.options.emailConfig.auth.users.some((user: any) => user.username === 'operator')).toEqual(true);
});

tap.test('WorkAppMailManager applies persisted identities to startup email config', async () => {
  const { dcRouterRef } = createDcRouterStub();
  const manager = new WorkAppMailManager(dcRouterRef);
  await manager.syncMailIdentity({
    ownership: {
      workHosterType: 'onebox',
      workHosterId: 'box-1',
      workAppId: 'app-1',
    },
    localPart: 'hello',
    domain: 'example.com',
    inbound: { enabled: true, targetHost: '10.0.0.2', targetPort: 2525 },
  }, 'tester');

  const baseStartupConfig: IUnifiedEmailServerOptions = {
    hostname: 'mail.example.com',
    ports: [25],
    domains: [{ domain: 'example.com', dnsMode: 'external-dns' }],
    routes: [],
  };
  const startupConfig = await manager.applyStoredIdentitiesToEmailConfig(baseStartupConfig);

  expect(startupConfig.routes.some((route) => route.name.startsWith('workapp-mail-'))).toEqual(true);
  expect(startupConfig.auth?.users?.some((user) => user.username.startsWith('workapp-'))).toEqual(true);
});

export default tap.start();