documenso/apps/web/src/app/(signing)/sign/[token]/email-field.tsx

'use client';

import { useTransition } from 'react';

import { useRouter } from 'next/navigation';

import { Trans, msg } from '@lingui/macro';
import { useLingui } from '@lingui/react';
import { Loader } from 'lucide-react';

import { DO_NOT_INVALIDATE_QUERY_ON_MUTATION } from '@documenso/lib/constants/trpc';
import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
import type { TRecipientActionAuth } from '@documenso/lib/types/document-auth';
import { ZEmailFieldMeta } from '@documenso/lib/types/field-meta';
import type { FieldWithSignature } from '@documenso/prisma/types/field-with-signature';
import { trpc } from '@documenso/trpc/react';
import type {
  TRemovedSignedFieldWithTokenMutationSchema,
  TSignFieldWithTokenMutationSchema,
} from '@documenso/trpc/server/field-router/schema';
import { cn } from '@documenso/ui/lib/utils';
import { useToast } from '@documenso/ui/primitives/use-toast';

import { useRequiredSigningContext } from './provider';
import { useRecipientContext } from './recipient-context';
import { SigningFieldContainer } from './signing-field-container';

export type EmailFieldProps = {
  field: FieldWithSignature;
  onSignField?: (value: TSignFieldWithTokenMutationSchema) => Promise<void> | void;
  onUnsignField?: (value: TRemovedSignedFieldWithTokenMutationSchema) => Promise<void> | void;
};

export const EmailField = ({ field, onSignField, onUnsignField }: EmailFieldProps) => {
  const router = useRouter();

  const { _ } = useLingui();
  const { toast } = useToast();

  const { email: providedEmail } = useRequiredSigningContext();
  const { recipient, targetSigner, isAssistantMode } = useRecipientContext();

  const [isPending, startTransition] = useTransition();

  const { mutateAsync: signFieldWithToken, isPending: isSignFieldWithTokenLoading } =
    trpc.field.signFieldWithToken.useMutation(DO_NOT_INVALIDATE_QUERY_ON_MUTATION);

  const {
    mutateAsync: removeSignedFieldWithToken,
    isPending: isRemoveSignedFieldWithTokenLoading,
  } = trpc.field.removeSignedFieldWithToken.useMutation(DO_NOT_INVALIDATE_QUERY_ON_MUTATION);

  const safeFieldMeta = ZEmailFieldMeta.safeParse(field.fieldMeta);
  const parsedFieldMeta = safeFieldMeta.success ? safeFieldMeta.data : null;

  const isLoading = isSignFieldWithTokenLoading || isRemoveSignedFieldWithTokenLoading || isPending;

  const onSign = async (authOptions?: TRecipientActionAuth) => {
    try {
      const value = providedEmail ?? '';

      const payload: TSignFieldWithTokenMutationSchema = {
        token: recipient.token,
        fieldId: field.id,
        value,
        isBase64: false,
        authOptions,
      };

      if (onSignField) {
        await onSignField(payload);
        return;
      }

      await signFieldWithToken(payload);

      startTransition(() => router.refresh());
    } catch (err) {
      const error = AppError.parseError(err);

      if (error.code === AppErrorCode.UNAUTHORIZED) {
        throw error;
      }

      console.error(err);

      toast({
        title: _(msg`Error`),
        description: isAssistantMode
          ? _(msg`An error occurred while signing as assistant.`)
          : _(msg`An error occurred while signing the document.`),
        variant: 'destructive',
      });
    }
  };

  const onRemove = async () => {
    try {
      const payload: TRemovedSignedFieldWithTokenMutationSchema = {
        token: recipient.token,
        fieldId: field.id,
      };

      if (onUnsignField) {
        await onUnsignField(payload);
        return;
      }

      await removeSignedFieldWithToken(payload);

      startTransition(() => router.refresh());
    } catch (err) {
      console.error(err);

      toast({
        title: _(msg`Error`),
        description: _(msg`An error occurred while removing the field.`),
        variant: 'destructive',
      });
    }
  };

  return (
    <SigningFieldContainer field={field} onSign={onSign} onRemove={onRemove} type="Email">
      {isLoading && (
        <div className="bg-background absolute inset-0 flex items-center justify-center rounded-md">
          <Loader className="text-primary h-5 w-5 animate-spin md:h-8 md:w-8" />
        </div>
      )}

      {!field.inserted && (
        <p className="group-hover:text-primary text-muted-foreground text-[clamp(0.425rem,25cqw,0.825rem)] duration-200 group-hover:text-yellow-300">
          <Trans>Email</Trans>
        </p>
      )}

      {field.inserted && (
        <div className="flex h-full w-full items-center">
          <p
            className={cn(
              'text-muted-foreground dark:text-background/80 w-full text-[clamp(0.425rem,25cqw,0.825rem)] duration-200',
              {
                'text-left': parsedFieldMeta?.textAlign === 'left',
                'text-center':
                  !parsedFieldMeta?.textAlign || parsedFieldMeta?.textAlign === 'center',
                'text-right': parsedFieldMeta?.textAlign === 'right',
              },
            )}
          >
            {field.customText}
          </p>
        </div>
      )}
    </SigningFieldContainer>
  );
};