Anton 557781950d
fix: reduce autosave function invocation spam (25x anomaly) (#108)
* fix: reduce autosave function invocation spam (25x anomaly)

Root cause: useProjectScene() was mounted in BOTH editor/index.tsx
AND project-dropdown.tsx, creating duplicate zustand subscriptions
that each independently triggered saveProjectModel() server actions.

Combined with a 2-second debounce and the fact that each server
action also calls getSession() (another function invocation), active
editing was generating ~120+ invocations/minute.

Changes:
- Remove duplicate useProjectScene() from project-dropdown.tsx
- Increase autosave debounce from 2s to 10s
- Skip auto-save on initial scene load from server (was saving the
  scene right back after loading it)
- Add pending-save coalescing: changes during in-flight saves get
  batched into one follow-up save instead of queuing concurrently

* fix: flush unsaved scene to cloud on page exit / unmount

Adds two safety nets so the 10s debounce doesn't lose data:
- beforeunload listener: fires saveProjectModel() when the user
  closes the tab or navigates away externally
- cleanup flush on unmount: fires when navigating within the SPA
  (e.g. switching projects, going to settings)

Both are fire-and-forget — if the browser kills the request,
localStorage still has the data and will sync on next load.

* style: fix biome import ordering in project-dropdown

---------

Co-authored-by: Anton Pascal <anton-pascal@users.noreply.github.com>
2026-02-20 05:01:59 +00:00

109 lines
3.9 KiB
TypeScript

'use client'
import { Check, ChevronDown, Home, Plus } from 'lucide-react'
import { useState } from 'react'
import {
DropdownMenu,
DropdownMenuContent,
DropdownMenuItem,
DropdownMenuTrigger,
} from '@/components/ui/primitives/dropdown-menu'
import { cn } from '@/lib/utils'
import { useProjectStore } from '../lib/projects/store'
import { NewProjectDialog } from './new-project-dialog'
/**
* ProjectDropdown - Shows active project and allows switching between projects
* Note: useProjectScene() is called in the Editor component, not here.
* Having it in both places caused duplicate subscriptions and 2x server action calls.
*/
export function ProjectDropdown() {
// Use project store
const projects = useProjectStore((state) => state.projects)
const activeProject = useProjectStore((state) => state.activeProject)
const isLoading = useProjectStore((state) => state.isLoading)
const setActiveProject = useProjectStore((state) => state.setActiveProject)
const fetchProjects = useProjectStore((state) => state.fetchProjects)
const [isNewProjectDialogOpen, setIsNewProjectDialogOpen] = useState(false)
const handleProjectSelect = async (projectId: string) => {
await setActiveProject(projectId)
}
const handleAddNew = () => {
setIsNewProjectDialogOpen(true)
}
const handleProjectCreated = async (projectId: string) => {
// Set the newly created project as active (this will also fetch projects)
await setActiveProject(projectId)
}
return (
<>
<DropdownMenu>
<DropdownMenuTrigger asChild>
<button
className="flex h-9 items-center gap-2 rounded-lg border border-border bg-background/95 px-3 text-sm shadow-lg backdrop-blur-md transition-colors hover:bg-accent hover:text-accent-foreground disabled:opacity-50 focus:outline-none"
disabled={isLoading}
type="button"
>
<Home className="h-4 w-4" />
<span className="max-w-[150px] truncate">
{activeProject
? activeProject.name
: projects.length > 0
? 'Select Project'
: 'Add Project'}
</span>
<ChevronDown className="h-3 w-3 opacity-50" />
</button>
</DropdownMenuTrigger>
<DropdownMenuContent align="end" className="w-[280px]">
{/* Project list */}
{projects.length > 0 ? (
<div className="max-h-[300px] overflow-y-auto">
{projects.map((project) => (
<DropdownMenuItem
className={cn(
'cursor-pointer text-sm',
activeProject?.id === project.id && 'cursor-default bg-accent',
)}
key={project.id}
onClick={() =>
activeProject?.id === project.id ? null : handleProjectSelect(project.id)
}
>
<div className="flex w-full items-center justify-between gap-2">
<div className="flex-1 truncate font-medium">{project.name}</div>
{activeProject?.id === project.id && (
<Check className="h-4 w-4 shrink-0 text-primary" />
)}
</div>
</DropdownMenuItem>
))}
</div>
) : (
<div className="px-2 py-3 text-center text-muted-foreground text-sm">
No projects yet
</div>
)}
{/* Add new project option */}
<DropdownMenuItem className="cursor-pointer" onClick={handleAddNew}>
<Plus className="mr-2 h-4 w-4" />
<span>Add new project</span>
</DropdownMenuItem>
</DropdownMenuContent>
</DropdownMenu>
<NewProjectDialog
open={isNewProjectDialogOpen}
onOpenChange={setIsNewProjectDialogOpen}
onSuccess={handleProjectCreated}
/>
</>
)
}