/**
 * Registry of every transactional template the system can emit, with a
 * pre-baked sample-prop fixture so an admin can fire a realistic
 * preview to a designated address without needing to trigger the real
 * upstream flow (a real signing send, a real portal invite, etc.).
 *
 * Consumed by `<TestTemplateCard>` (admin → Email page) and
 * `/api/v1/admin/email/test-template`. New templates land here once
 * they're plumbed; the UI dropdown reflects the registry at runtime so
 * adding an entry surfaces it without any UI change.
 */

import type { BrandingShell } from '@/lib/email/shell';
import { activationEmail, resetEmail } from '@/lib/email/templates/portal-auth';
import { crmInviteEmail } from '@/lib/email/templates/crm-invite';
import { adminEmailChangeEmail } from '@/lib/email/templates/admin-email-change';
import { notificationDigestEmail } from '@/lib/email/templates/notification-digest';
import {
  signingInvitationEmail,
  signingCompletedEmail,
  signingReminderEmail,
  signingCancelledEmail,
} from '@/lib/email/templates/document-signing';
import { inquiryClientConfirmation } from '@/lib/email/templates/inquiry-client-confirmation';
import { inquirySalesNotification } from '@/lib/email/templates/inquiry-sales-notification';
import {
  residentialClientConfirmation,
  residentialSalesAlert,
} from '@/lib/email/templates/residential-inquiry';

export type RenderedEmail = { subject: string; html: string; text?: string };

export interface TestTemplateMeta {
  /** Stable id - used as the dropdown value + the POST body key. */
  id: string;
  /** Human-facing dropdown label. */
  label: string;
  /** One-line description shown under the dropdown to clarify which
   *  real flow fires this template in production. */
  description: string;
  /** Renders a fully-formed email with placeholder data baked in. */
  render: (sample: SampleContext) => Promise<RenderedEmail>;
}

/**
 * Shared sample fixture passed to every renderer so the previewed
 * subject/body line up with the admin's current port. Real flows
 * resolve these from DB lookups; the tester injects synthetic but
 * plausible values instead.
 */
export interface SampleContext {
  recipientName: string;
  recipientEmail: string;
  portName: string;
  portUrl: string;
  /** Per-port branding shell (logo, blur background, accent color, header/footer
   *  HTML). Resolved once by the test-template route via getBrandingShell and
   *  forwarded into every template so previews match the production look.
   *  Null is acceptable - templates fall back to neutral defaults. */
  branding: BrandingShell | null;
}

export const TEST_TEMPLATES: TestTemplateMeta[] = [
  {
    id: 'portal_activation',
    label: 'Portal · Activation invite',
    description: 'Fires when an admin invites a client to activate their portal account.',
    render: (s) =>
      activationEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          link: `${s.portUrl}/portal/activate/sample-token`,
          ttlHours: 24,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'portal_reset',
    label: 'Portal · Password reset',
    description: 'Fires when a portal user requests a password reset link.',
    render: (s) =>
      resetEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          link: `${s.portUrl}/portal/reset/sample-token`,
          ttlMinutes: 120,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'crm_invite',
    label: 'CRM · Teammate invitation',
    description: 'Fires when a super-admin invites a new teammate to the CRM.',
    render: (s) =>
      crmInviteEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          isSuperAdmin: false,
          link: `${s.portUrl}/invite/sample-token`,
          ttlHours: 72,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'admin_email_change',
    label: 'CRM · Admin email change confirmation',
    description: 'Fires when an admin updates their CRM login email - confirmation step.',
    render: (s) =>
      adminEmailChangeEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          newEmail: s.recipientEmail,
          changedByDisplayName: 'Sample Admin',
          loginUrl: `${s.portUrl}/login`,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'notification_digest',
    label: 'Reminders · Notification digest',
    description: 'Fires on the configured cadence (daily/weekly) with the rep’s open reminders.',
    render: (s) =>
      notificationDigestEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          items: [
            {
              type: 'reminder',
              title: 'Follow up with Matthew Ciaccio on Berth A1',
              description: 'Reservation EOI sent 5 days ago - no response yet.',
              link: `${s.portUrl}/clients/sample-client-id`,
              createdAt: new Date(Date.now() - 86_400_000),
            },
            {
              type: 'alert',
              title: 'Berth B12 PDF parse failed',
              description: null,
              link: `${s.portUrl}/berths/sample-berth-id`,
              createdAt: new Date(Date.now() - 2 * 86_400_000),
            },
          ],
          totalUnread: 2,
          inboxLink: `${s.portUrl}/inbox`,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'signing_invitation',
    label: 'Documenso · Signing invitation',
    description: 'Fires when the rep dispatches the first signing-invite email for a doc.',
    render: (s) =>
      signingInvitationEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          documentLabel: 'Sales Contract',
          signerRole: 'client',
          signingUrl: `${s.portUrl}/sign/sample-token`,
          senderName: 'Sample Sales Manager',
          customMessage: null,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'signing_reminder',
    label: 'Documenso · Signing reminder',
    description: 'Fires when a manual reminder is dispatched for an outstanding signer.',
    render: (s) =>
      signingReminderEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          documentLabel: 'Sales Contract',
          signingUrl: `${s.portUrl}/sign/sample-token`,
          invitedAgo: '5 days ago',
          customMessage: null,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'signing_completed',
    label: 'Documenso · Fully signed notification',
    description: 'Fires when every required signer has signed and the document is complete.',
    render: (s) =>
      signingCompletedEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          documentLabel: 'Sales Contract',
          clientName: s.recipientName,
          completedAt: new Date(),
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'signing_cancelled',
    label: 'Documenso · Signing cancelled',
    description: 'Fires when the rep cancels a document mid-signature with notify-recipients.',
    render: (s) =>
      signingCancelledEmail(
        {
          recipientName: s.recipientName,
          portName: s.portName,
          documentLabel: 'Sales Contract',
          reason: 'Customer renegotiated terms; a fresh contract will follow.',
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'inquiry_client_confirmation',
    label: 'Public inquiry · Client confirmation',
    description: 'Fires when a public-site visitor submits the contact form (their copy).',
    render: (s) =>
      inquiryClientConfirmation(
        {
          firstName: s.recipientName.split(' ')[0] ?? s.recipientName,
          mooringNumber: 'A1',
          contactEmail: 'sales@portnimara.com',
          portName: s.portName,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'inquiry_sales_notification',
    label: 'Public inquiry · Sales notification',
    description: 'Fires alongside the client confirmation - alerts the sales rep to a new lead.',
    render: (s) =>
      inquirySalesNotification(
        {
          fullName: s.recipientName,
          email: s.recipientEmail,
          phone: '+1 555 0100',
          mooringNumber: 'A1',
          crmUrl: `${s.portUrl}/clients/sample-client-id`,
          portName: s.portName,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'residential_client_confirmation',
    label: 'Residential inquiry · Client confirmation',
    description: 'Fires when a residential-site visitor submits the contact form.',
    render: (s) =>
      residentialClientConfirmation(
        {
          firstName: s.recipientName.split(' ')[0] ?? s.recipientName,
          contactEmail: 'sales@portnimara.com',
          portName: s.portName,
        },
        { branding: s.branding },
      ),
  },
  {
    id: 'residential_sales_alert',
    label: 'Residential inquiry · Sales alert',
    description: 'Fires alongside the residential client confirmation - alerts the sales team.',
    render: (s) =>
      residentialSalesAlert(
        {
          fullName: s.recipientName,
          email: s.recipientEmail,
          phone: '+1 555 0100',
          placeOfResidence: 'Monaco',
          preferredContactMethod: 'email',
          notes: 'Looking for year-round mooring + marina apartment access.',
          crmDeepLink: `${s.portUrl}/residential/clients/sample-id`,
          portName: s.portName,
        },
        { branding: s.branding },
      ),
  },
];

export function findTestTemplate(id: string): TestTemplateMeta | undefined {
  return TEST_TEMPLATES.find((t) => t.id === id);
}