feat: Preview by publishing to subdomain only aka staging (#4143)

## Description

closes #2644

- [x] - Merge this #4156
into this PR

- If the user has no custom domains:
  - [x] Checkbox for Pro users is not shown.
  - [x] Checkbox for Free users is shown but disabled (Tooltip enabled).

- If the user has custom domains:
  - No Pro:
    - [x] Checkboxes are shown disabled with Tooltips.
  - Pro:
    - Users can select any checkbox (no Tooltips).

- Current indexing logic:
- If a user has custom domain(s), upon publishing, the `*.wstd.io`
domain will receive the meta tag:
    ```html
    <meta name="robots" content="noindex, nofollow">
    ```

- [x] - Fix example.com in tests (NEXT PR #4156) 
- [ ] - saas cleanup should be changed (we need to preserve latest build
by domain now) (NEXT PR)
- [x] - Disable Publish Button if no checkboxes are selected

- "With the Pro, you’ll gain the ability to publish to each domain
independently!"
<img width="477" alt="image"
src="https://github.com/user-attachments/assets/105577e5-318f-4146-a3eb-38c2117f6f79">

## Steps for reproduction

### Non Pro

- Login as a new non Pro User `pass:vaska@pupkin.ru`
- Create a new Project, Click Publish. Expect Disabled Checkbox with
Tolltip is visible. Publish is Enabled.
<img width="445" alt="image"
src="https://github.com/user-attachments/assets/e48654af-1969-4f96-b048-a3fa72303b8f">
- Publish, check it published.
- Add custom domain, Publish, check both are published.

### Pro

- Login as a Pro User `pass`
- Open new Project. Expect No checkbox. One wstd domain.
<img width="351" alt="image"
src="https://github.com/user-attachments/assets/c62f9ae5-669a-46ad-a2f2-32ba333068f9">
- Publish. Expect it published.
- Add domain. See checkboxes visible after domain activated.
- Publish. Expect both published.
- Uncheck checkboxes, see publish button disabled. See it has tooltip.



## Code Review

- [ ] hi @kof, I need you to do
  - conceptual review (architecture, feature-correctness)
  - detailed review (read every line)
  - test it on preview

## Before requesting a review

- [ ] made a self-review
- [ ] added inline comments where things may be not obvious (the "why",
not "what")

## Before merging

- [ ] tested locally and on preview environment (preview dev login:
5de6)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file

Author: istarkov

apps/builder/app/builder/features/topbar/add-domain.tsx

@@ -7,65 +7,61 @@ import {
   theme,
   Text,
   Grid,
+  toast,
 } from "@webstudio-is/design-system";
 import { validateDomain } from "@webstudio-is/domain";
 import type { Project } from "@webstudio-is/project";
-import { useId, useState } from "react";
+import { useId, useOptimistic, useRef, useState } from "react";
 import { CustomCodeIcon } from "@webstudio-is/icons";
-import { trpcClient } from "~/shared/trpc/trpc-client";
+import { nativeClient } from "~/shared/trpc/trpc-client";
 
 type DomainsAddProps = {
   projectId: Project["id"];
   onCreate: (domain: string) => void;
   onExportClick: () => void;
-  refreshDomainResult: (
-    input: { projectId: Project["id"] },
-    onSuccess: () => void
-  ) => void;
-  domainState: "idle" | "submitting";
-  isPublishing: boolean;
+  refresh: () => Promise<void>;
 };
 
 export const AddDomain = ({
   projectId,
   onCreate,
-  refreshDomainResult,
-  domainState,
-  isPublishing,
+  refresh,
   onExportClick,
 }: DomainsAddProps) => {
   const id = useId();
-  const {
-    send: create,
-    state: сreateState,
-    error: сreateSystemError,
-  } = trpcClient.domain.create.useMutation();
   const [isOpen, setIsOpen] = useState(false);
-  const [domain, setDomain] = useState("");
   const [error, setError] = useState<string>();
+  const buttonRef = useRef<HTMLButtonElement>(null);
+  const [isPending, setIsPendingOptimistic] = useOptimistic(false);
 
-  const handleCreate = () => {
-    setError(undefined);
+  const handleCreateDomain = async (formData: FormData) => {
+    // Will be automatically reset on action end
+    setIsPendingOptimistic(true);
 
+    const domain = formData.get("domain")?.toString() ?? "";
     const validationResult = validateDomain(domain);
 
     if (validationResult.success === false) {
       setError(validationResult.error);
       return;
     }
 
-    create({ domain: validationResult.domain, projectId }, (data) => {
-      if (data.success === false) {
-        setError(data.error);
-        return;
-      }
-
-      refreshDomainResult({ projectId }, () => {
-        setDomain("");
-        setIsOpen(false);
-        onCreate(validationResult.domain);
-      });
+    const result = await nativeClient.domain.create.mutate({
+      domain,
+      projectId,
     });
+
+    if (result.success === false) {
+      toast.error(result.error);
+      setError(result.error);
+      return;
+    }
+
+    onCreate(domain);
+
+    await refresh();
+
+    setIsOpen(false);
   };
 
   return (
@@ -81,7 +77,6 @@ export const AddDomain = ({
         direction={"column"}
         onKeyDown={(event) => {
           if (event.key === "Escape") {
-            setDomain("");
             setIsOpen(false);
             event.preventDefault();
           }
@@ -94,56 +89,43 @@ export const AddDomain = ({
             </Label>
             <InputField
               id={id}
+              name="domain"
               autoFocus
               placeholder="your-domain.com"
-              value={domain}
-              disabled={
-                isPublishing || сreateState !== "idle" || domainState !== "idle"
-              }
+              disabled={isPending}
               onKeyDown={(event) => {
                 if (event.key === "Enter") {
-                  handleCreate();
+                  buttonRef.current
+                    ?.closest("form")
+                    ?.requestSubmit(buttonRef.current);
                 }
                 if (event.key === "Escape") {
-                  setDomain("");
                   setIsOpen(false);
                   event.preventDefault();
                 }
               }}
-              onChange={(event) => {
-                setError(undefined);
-                setDomain(event.target.value);
-              }}
               color={error !== undefined ? "error" : undefined}
             />
             {error !== undefined && (
               <>
                 <Text color="destructive">{error}</Text>
               </>
             )}
-            {сreateSystemError !== undefined && (
-              <>
-                {/* Something happened with network, api etc */}
-                <Text color="destructive">{сreateSystemError}</Text>
-                <Text color="subtle">Please try again later</Text>
-              </>
-            )}
           </>
         )}
 
         <Grid gap={2} columns={2}>
           <Button
-            disabled={
-              isPublishing || сreateState !== "idle" || domainState !== "idle"
-            }
+            ref={buttonRef}
+            formAction={handleCreateDomain}
+            state={isPending ? "pending" : undefined}
             color={isOpen ? "primary" : "neutral"}
-            onClick={() => {
+            onClick={(event) => {
               if (isOpen === false) {
                 setIsOpen(true);
+                event.preventDefault();
                 return;
               }
-
-              handleCreate();
             }}
           >
             {isOpen ? "Add domain" : "Add a new domain"}
@@ -152,6 +134,7 @@ export const AddDomain = ({
           <Button
             color={"dark"}
             prefix={<CustomCodeIcon />}
+            type="button"
             onClick={onExportClick}
           >
             Export

apps/builder/app/builder/features/topbar/collapsible-domain-section.tsx

@@ -4,6 +4,7 @@ import {
   Label,
   theme,
   SectionTitle,
+  Grid,
 } from "@webstudio-is/design-system";
 import { useEffect, useRef, useState, type ReactNode } from "react";
 import { CollapsibleSectionRoot } from "~/builder/shared/collapsible-section";
@@ -13,9 +14,11 @@ export const CollapsibleDomainSection = ({
   children,
   title,
   suffix,
+  prefix,
 }: {
   initiallyOpen?: boolean;
   children: ReactNode;
+  prefix: ReactNode;
   suffix: ReactNode;
   title: string;
 }) => {
@@ -53,7 +56,10 @@ export const CollapsibleDomainSection = ({
             </Box>
           }
         >
-          <Label truncate>{title}</Label>
+          <Grid flow={"column"} align="center" justify={"start"}>
+            {prefix}
+            <Label truncate>{title}</Label>
+          </Grid>
         </SectionTitle>
       }
     >

apps/builder/app/builder/features/topbar/domain-checkbox.tsx

@@ -0,0 +1,82 @@
+import { useStore } from "@nanostores/react";
+import {
+  Flex,
+  Tooltip,
+  Text,
+  theme,
+  Link,
+  buttonStyle,
+  Checkbox,
+} from "@webstudio-is/design-system";
+import { $userPlanFeatures } from "~/builder/shared/nano-states";
+import { $project } from "~/shared/nano-states";
+
+export const domainToPublishName = "domainToPublish[]";
+
+interface DomainCheckboxProps {
+  defaultChecked?: boolean;
+  domain: string;
+  buildId: string | undefined;
+  disabled?: boolean;
+}
+
+const DomainCheckbox = (props: DomainCheckboxProps) => {
+  const hasProPlan = useStore($userPlanFeatures).hasProPlan;
+  const project = useStore($project);
+
+  if (project === undefined) {
+    return;
+  }
+
+  const tooltipContentForFreeUsers = hasProPlan ? undefined : (
+    <Flex direction="column" gap="2" css={{ maxWidth: theme.spacing[28] }}>
+      <Text variant="titles">Publish to Staging</Text>
+      <Text>
+        <Flex direction="column">
+          Staging allows you to preview a production version of your site
+          without potentially breaking what production site visitors will see.
+          <>
+            <br />
+            <br />
+            Upgrade to Pro account to publish to each domain individually.
+            <br /> <br />
+            <Link
+              className={buttonStyle({ color: "gradient" })}
+              color="contrast"
+              underline="none"
+              href="https://webstudio.is/pricing"
+              target="_blank"
+            >
+              Upgrade
+            </Link>
+          </>
+        </Flex>
+      </Text>
+    </Flex>
+  );
+
+  const defaultChecked = hasProPlan ? props.defaultChecked : true;
+  const disabled = hasProPlan ? props.disabled : true;
+
+  const hideDomainCheckbox =
+    project.domainsVirtual.filter(
+      (domain) => domain.status === "ACTIVE" && domain.verified
+    ).length === 0 && hasProPlan;
+
+  return (
+    <div style={{ display: hideDomainCheckbox ? "none" : "contents" }}>
+      <Tooltip content={tooltipContentForFreeUsers} variant="wrapped">
+        <Checkbox
+          disabled={disabled}
+          key={props.buildId ?? "-"}
+          defaultChecked={hideDomainCheckbox || defaultChecked}
+          css={{ pointerEvents: "all" }}
+          name={domainToPublishName}
+          value={props.domain}
+        />
+      </Tooltip>
+    </div>
+  );
+};
+
+export default DomainCheckbox;