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

import { transformSigningUrl } from '@/lib/services/document-signing-emails.service';

/**
 * Phase 5 - pin the URL-wrapping contract.
 *
 * The marketing website at portnimara.com/sign/[type]/[token] expects
 * specific path segments (`client | cc | developer | witness`) and the
 * Documenso webhook returns raw URLs of the form
 * `https://signatures.portnimara.com/sign/<token>`. transformSigningUrl
 * is the seam between the two - these tests guard the role-to-URL-
 * segment mapping so a future refactor can't silently break the
 * embedded signing pages.
 */

const RAW = 'https://signatures.portnimara.com/sign/vbT8hi3jKQmrFP_LN1WcS';
const HOST = 'https://portnimara.com';

describe('transformSigningUrl', () => {
  it('returns raw URL when embeddedSigningHost is null (single-tenant / staging)', () => {
    expect(transformSigningUrl(RAW, null, 'client')).toBe(RAW);
  });

  it('returns raw URL on empty input', () => {
    expect(transformSigningUrl('', HOST, 'client')).toBe('');
  });

  it('maps client → /sign/client/<token>', () => {
    expect(transformSigningUrl(RAW, HOST, 'client')).toBe(
      'https://portnimara.com/sign/client/vbT8hi3jKQmrFP_LN1WcS',
    );
  });

  it('maps developer → /sign/developer/<token>', () => {
    expect(transformSigningUrl(RAW, HOST, 'developer')).toBe(
      'https://portnimara.com/sign/developer/vbT8hi3jKQmrFP_LN1WcS',
    );
  });

  it('maps approver → /sign/cc/<token> - website only handles {client, cc, developer, witness}', () => {
    expect(transformSigningUrl(RAW, HOST, 'approver')).toBe(
      'https://portnimara.com/sign/cc/vbT8hi3jKQmrFP_LN1WcS',
    );
  });

  it("maps 'signer' (Documenso's persisted order-2 role) → /sign/developer/<token>", () => {
    // document_signers.signer_role stores Documenso's normalized role, so the
    // EOI developer arrives as 'signer'. Regression: this used to fall through
    // to `undefined` → dead `…/sign/undefined/<token>` invitation links.
    expect(transformSigningUrl(RAW, HOST, 'signer' as never)).toBe(
      'https://portnimara.com/sign/developer/vbT8hi3jKQmrFP_LN1WcS',
    );
  });

  it('falls back to /sign/cc/<token> for any unrecognised role (never undefined)', () => {
    expect(transformSigningUrl(RAW, HOST, 'mystery-role' as never)).toBe(
      'https://portnimara.com/sign/cc/vbT8hi3jKQmrFP_LN1WcS',
    );
  });

  it('maps witness → /sign/witness/<token>', () => {
    expect(transformSigningUrl(RAW, HOST, 'witness')).toBe(
      'https://portnimara.com/sign/witness/vbT8hi3jKQmrFP_LN1WcS',
    );
  });

  it('maps other → /sign/cc/<token> - funnels through CC page with passive copy', () => {
    expect(transformSigningUrl(RAW, HOST, 'other')).toBe(
      'https://portnimara.com/sign/cc/vbT8hi3jKQmrFP_LN1WcS',
    );
  });

  it('strips trailing slashes from the host so we get a clean single / between segments', () => {
    expect(transformSigningUrl(RAW, 'https://portnimara.com/', 'client')).toBe(
      'https://portnimara.com/sign/client/vbT8hi3jKQmrFP_LN1WcS',
    );
    expect(transformSigningUrl(RAW, 'https://portnimara.com///', 'client')).toBe(
      'https://portnimara.com/sign/client/vbT8hi3jKQmrFP_LN1WcS',
    );
  });

  it('preserves the token verbatim - no URL encoding / re-shaping', () => {
    const odd = 'https://sig.example.com/sign/Aa_-Zz09_-XYZ';
    expect(transformSigningUrl(odd, HOST, 'developer')).toBe(
      'https://portnimara.com/sign/developer/Aa_-Zz09_-XYZ',
    );
  });

  it('returns raw URL when the input has no extractable token', () => {
    const bare = 'https://sig.example.com';
    expect(transformSigningUrl(bare, HOST, 'client')).toBe(bare);
  });
});
