feat: sign document with a custom text

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

@@ -0,0 +1,178 @@
+'use client';
+
+import { useEffect, useState, useTransition } from 'react';
+
+import { useRouter } from 'next/navigation';
+
+import { Loader } from 'lucide-react';
+
+import type { Recipient } from '@documenso/prisma/client';
+import type { FieldWithSignature } from '@documenso/prisma/types/field-with-signature';
+import { trpc } from '@documenso/trpc/react';
+import { Button } from '@documenso/ui/primitives/button';
+import { Dialog, DialogContent, DialogFooter, DialogTitle } from '@documenso/ui/primitives/dialog';
+import { Label } from '@documenso/ui/primitives/label';
+import { Textarea } from '@documenso/ui/primitives/textarea';
+import { useToast } from '@documenso/ui/primitives/use-toast';
+
+import { useRequiredSigningContext } from './provider';
+import { SigningFieldContainer } from './signing-field-container';
+
+export type TextFieldProps = {
+  field: FieldWithSignature;
+  recipient: Recipient;
+};
+
+export const TextField = ({ field, recipient }: TextFieldProps) => {
+  const router = useRouter();
+
+  const { toast } = useToast();
+  const { customText: providedCustomText, setCustomText: setProvidedCustomText } =
+    useRequiredSigningContext();
+
+  const [isPending, startTransition] = useTransition();
+
+  const { mutateAsync: signFieldWithToken, isLoading: isSignFieldWithTokenLoading } =
+    trpc.field.signFieldWithToken.useMutation();
+
+  const {
+    mutateAsync: removeSignedFieldWithToken,
+    isLoading: isRemoveSignedFieldWithTokenLoading,
+  } = trpc.field.removeSignedFieldWithToken.useMutation();
+
+  const isLoading = isSignFieldWithTokenLoading || isRemoveSignedFieldWithTokenLoading || isPending;
+
+  const [showCustomTextModal, setShowCustomTextModal] = useState(false);
+  const [localText, setLocalCustomText] = useState('');
+  const [isLocalSignatureSet, setIsLocalSignatureSet] = useState(false);
+
+  useEffect(() => {
+    if (!showCustomTextModal && !isLocalSignatureSet) {
+      setLocalCustomText('');
+    }
+  }, [showCustomTextModal, isLocalSignatureSet]);
+
+  const onSign = async (source: 'local' | 'provider' = 'provider') => {
+    try {
+      if (!providedCustomText && !localText) {
+        setIsLocalSignatureSet(false);
+        setShowCustomTextModal(true);
+        return;
+      }
+
+      const value = source === 'local' && localText ? localText : providedCustomText ?? '';
+
+      if (!value) {
+        return;
+      }
+
+      await signFieldWithToken({
+        token: recipient.token,
+        fieldId: field.id,
+        value,
+        isBase64: true,
+      });
+
+      if (source === 'local' && !providedCustomText) {
+        setProvidedCustomText(localText);
+      }
+
+      setLocalCustomText('');
+
+      startTransition(() => router.refresh());
+    } catch (err) {
+      console.error(err);
+
+      toast({
+        title: 'Error',
+        description: 'An error occurred while signing the document.',
+        variant: 'destructive',
+      });
+    }
+  };
+
+  const onRemove = async () => {
+    try {
+      // Necessary to reset the custom text if the user removes the signature
+      setProvidedCustomText('');
+
+      await removeSignedFieldWithToken({
+        token: recipient.token,
+        fieldId: field.id,
+      });
+
+      startTransition(() => router.refresh());
+    } catch (err) {
+      console.error(err);
+
+      toast({
+        title: 'Error',
+        description: 'An error occurred while removing the signature.',
+        variant: 'destructive',
+      });
+    }
+  };
+
+  return (
+    <SigningFieldContainer field={field} onSign={onSign} onRemove={onRemove} type="Signature">
+      {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-lg duration-200">Text</p>
+      )}
+
+      {field.inserted && <p className="text-muted-foreground duration-200">{field.customText}</p>}
+
+      <Dialog open={showCustomTextModal} onOpenChange={setShowCustomTextModal}>
+        <DialogContent>
+          <DialogTitle>
+            Enter a Text <span className="text-muted-foreground">({recipient.email})</span>
+          </DialogTitle>
+
+          <div className="">
+            <Label htmlFor="signature">Custom Text</Label>
+
+            <Textarea
+              id="custom-text"
+              className="border-border mt-2 h-44 w-full rounded-md border"
+              onChange={(e) => setLocalCustomText(e.target.value)}
+            />
+          </div>
+
+          <DialogFooter>
+            <div className="flex w-full flex-1 flex-nowrap gap-4">
+              <Button
+                type="button"
+                className="dark:bg-muted dark:hover:bg-muted/80 flex-1  bg-black/5 hover:bg-black/10"
+                variant="secondary"
+                onClick={() => {
+                  setShowCustomTextModal(false);
+                  setLocalCustomText('');
+                }}
+              >
+                Cancel
+              </Button>
+
+              <Button
+                type="button"
+                className="flex-1"
+                disabled={!localText}
+                onClick={() => {
+                  setShowCustomTextModal(false);
+                  setIsLocalSignatureSet(true);
+                  void onSign('local');
+                }}
+              >
+                Save Text
+              </Button>
+            </div>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </SigningFieldContainer>
+  );
+};