import { EmailTesterForm } from '@/app/emails/[id]/components/email-tester-form';
import { EnvModeSelector } from '@/components/env-mode-selector';
import { IFrame } from '@/components/iframe';

import {
  createKitEmailsDeps,
  createKitEmailsService,
} from '@kit/mcp-server/emails';
import { findWorkspaceRoot, getVariable } from '@kit/mcp-server/env';
import { AppBreadcrumbs } from '@kit/ui/app-breadcrumbs';
import { Button } from '@kit/ui/button';
import {
  Dialog,
  DialogContent,
  DialogTitle,
  DialogTrigger,
} from '@kit/ui/dialog';
import { Page, PageBody, PageHeader } from '@kit/ui/page';

type EnvMode = 'development' | 'production';

type EmailPageProps = React.PropsWithChildren<{
  params: Promise<{
    id: string;
  }>;

  searchParams: Promise<{ mode?: EnvMode }>;
}>;

export const metadata = {
  title: 'Email Template',
};

export default async function EmailPage(props: EmailPageProps) {
  const { id } = await props.params;
  const mode = (await props.searchParams).mode ?? 'development';

  const rootPath = findWorkspaceRoot(process.cwd());
  const service = createKitEmailsService(createKitEmailsDeps(rootPath));

  const [result, { templates }, emailSettings] = await Promise.all([
    service.read({ id }),
    service.list(),
    getEmailSettings(mode),
  ]);

  const html = result.renderedHtml ?? result.source;

  const values: Record<string, string> = { emails: 'Emails' };

  for (const t of templates) {
    values[t.id] = t.name;
  }

  return (
    <Page style={'custom'}>
      <PageHeader
        displaySidebarTrigger={false}
        title={values[id] ?? id}
        description={<AppBreadcrumbs values={values} />}
      >
        <EnvModeSelector mode={mode} />
      </PageHeader>

      <PageBody className={'flex flex-1 flex-col gap-y-4'}>
        <p className={'text-muted-foreground py-1 text-xs'}>
          Remember that the below is an approximation of the email. Always test
          it in your inbox.{' '}
          <Dialog>
            <DialogTrigger
              render={<Button variant={'link'} className="p-0 underline" />}
            >
              Test Email
            </DialogTrigger>

            <DialogContent>
              <DialogTitle>Send Test Email</DialogTitle>

              <EmailTesterForm settings={emailSettings} template={id} />
            </DialogContent>
          </Dialog>
        </p>

        <IFrame className={'flex flex-1 flex-col'}>
          <div
            className={'flex flex-1 flex-col'}
            dangerouslySetInnerHTML={{ __html: html }}
          />
        </IFrame>
      </PageBody>
    </Page>
  );
}

async function getEmailSettings(mode: EnvMode) {
  const sender = await getVariable('EMAIL_SENDER', mode);
  const host = await getVariable('EMAIL_HOST', mode);
  const port = await getVariable('EMAIL_PORT', mode);
  const tls = await getVariable('EMAIL_TLS', mode);
  const username = await getVariable('EMAIL_USER', mode);
  const password = await getVariable('EMAIL_PASSWORD', mode);

  return {
    sender,
    host,
    port: Number.isNaN(Number(port)) ? 487 : Number(port),
    tls: tls === 'true',
    username,
    password,
  };
}