import Link from 'next/link';

import { CheckIcon, Clock, MailIcon, MailOpenIcon, PenIcon, PlusIcon } from 'lucide-react';
import { match } from 'ts-pattern';

import { RECIPIENT_ROLES_DESCRIPTION } from '@documenso/lib/constants/recipient-roles';
import { DocumentStatus, RecipientRole, SigningStatus } from '@documenso/prisma/client';
import type { Document, Recipient } from '@documenso/prisma/client';
import { SignatureIcon } from '@documenso/ui/icons/signature';
import { AvatarWithText } from '@documenso/ui/primitives/avatar';
import { Badge } from '@documenso/ui/primitives/badge';

export type DocumentPageViewRecipientsProps = {
  document: Document & {
    Recipient: Recipient[];
  };
  documentRootPath: string;
};

export const DocumentPageViewRecipients = ({
  document,
  documentRootPath,
}: DocumentPageViewRecipientsProps) => {
  const recipients = document.Recipient;

  return (
    <section className="dark:bg-background border-border bg-widget flex flex-col rounded-xl border">
      <div className="flex flex-row items-center justify-between px-4 py-3">
        <h1 className="text-foreground font-medium">Recipients</h1>

        {document.status !== DocumentStatus.COMPLETED && (
          <Link
            href={`${documentRootPath}/${document.id}/edit?step=signers`}
            title="Modify recipients"
            className="flex flex-row items-center justify-between"
          >
            {recipients.length === 0 ? (
              <PlusIcon className="ml-2 h-4 w-4" />
            ) : (
              <PenIcon className="ml-2 h-3 w-3" />
            )}
          </Link>
        )}
      </div>

      <ul className="text-muted-foreground divide-y border-t">
        {recipients.length === 0 && (
          <li className="flex flex-col items-center justify-center py-6 text-sm">No recipients</li>
        )}

        {recipients.map((recipient) => (
          <li key={recipient.id} className="flex items-center justify-between px-4 py-2.5 text-sm">
            <AvatarWithText
              avatarFallback={recipient.email.slice(0, 1).toUpperCase()}
              primaryText={<p className="text-muted-foreground text-sm">{recipient.email}</p>}
              secondaryText={
                <p className="text-muted-foreground/70 text-xs">
                  {RECIPIENT_ROLES_DESCRIPTION[recipient.role].roleName}
                </p>
              }
            />

            {document.status !== DocumentStatus.DRAFT &&
              recipient.signingStatus === SigningStatus.SIGNED && (
                <Badge variant="default">
                  {match(recipient.role)
                    .with(RecipientRole.APPROVER, () => (
                      <>
                        <CheckIcon className="mr-1 h-3 w-3" />
                        Approved
                      </>
                    ))
                    .with(RecipientRole.CC, () =>
                      document.status === DocumentStatus.COMPLETED ? (
                        <>
                          <MailIcon className="mr-1 h-3 w-3" />
                          Sent
                        </>
                      ) : (
                        <>
                          <CheckIcon className="mr-1 h-3 w-3" />
                          Ready
                        </>
                      ),
                    )

                    .with(RecipientRole.SIGNER, () => (
                      <>
                        <SignatureIcon className="mr-1 h-3 w-3" />
                        Signed
                      </>
                    ))
                    .with(RecipientRole.VIEWER, () => (
                      <>
                        <MailOpenIcon className="mr-1 h-3 w-3" />
                        Viewed
                      </>
                    ))
                    .exhaustive()}
                </Badge>
              )}

            {document.status !== DocumentStatus.DRAFT &&
              recipient.signingStatus === SigningStatus.NOT_SIGNED && (
                <Badge variant="secondary">
                  <Clock className="mr-1 h-3 w-3" />
                  Pending
                </Badge>
              )}
          </li>
        ))}
      </ul>
    </section>
  );
};