Files
next-ai-draw-io/components/chat/TemplatePanel.tsx
T
Dayuan Jiang 60105ddb51 refactor: remove dead code and over-engineering found by two audits (#986)
## Problem

Two audits of the repository (a workflow of finder, dedup and per-file verifier agents, run on 2026-10-11 against 1f4141e and again against 07f3e3c after a first round of refactoring) found dead code and features that were more machinery than the app needs: an Electron configuration-preset system with its own settings window, three copies of the about page, a hand-written `.env` parser, an "extended" system prompt nobody selected, two data migrations for formats from 2025-12 and 2026-01, a server-side example cache, type-to-confirm provider deletion, 81 unused dictionary keys, wrapper components around single call sites, and a long tail of unused exports, props, options and tests.

## Change

Every item below was either approved one by one or covered by "fix all of the others".

- **Electron:** the configuration-preset system is gone (settings window, preload, IPC, menu entry, dev watcher); `config-manager.ts` keeps only `userLocale`; `.env` files are parsed with `dotenv`. Entitlements file and a duplicate CI workflow removed; `test.yml` gets a type check and concurrency.
- **Server:** no extended prompt, no example cache, no `ENABLE_HISTORY_XML_REPLACE`, no message metadata or `hasConfig`; the connection test is one shared helper; EdgeOne loses its mock branch and model aliases; `DEBUG_LLM_PAYLOAD` logs message structure instead of payloads; Langfuse scoring helper; `apiKeyEnv` arrays kept and documented in `env.example` and the provider docs.
- **Pages:** one about page per language from a single component (old `/cn` and `/ja` URLs redirect with 308); layout uses `hasLocale`; the GitHub icon is a local component instead of `react-icons`; Cloudflare deploys without an R2 cache by default.
- **Chat and canvas:** the legacy `diagramHistory` conversion, the localStorage chat migration and the templates storage are gone; `chat-engine` reads the diagram through the context's refs; the diagram context has one tagged export path (`requestTaggedExport` / `fetchDiagramXml`); the screenshot check uses fetch + JSON and `generateText` with `Output.object`; `load-diagram` accepts `<svg:svg>` and strips the XML prolog.
- **Settings UI:** `model-selector` inlines its Dialog, Command and Tooltip; `ai-elements/model-selector`, `button-with-tooltip`, `error-toast` removed; no type-to-confirm, no footer, no `bedrockApiKey`; `use-model-config` loses the old-format migration; one reasoning component; the shimmer is CSS (no `motion`, no `@radix-ui/react-use-controllable-state`); 81 dictionary keys removed in all four languages.
- **MCP server:** `registerTool` / `ok` / `fail` replace per-tool try/catch; `syncFromBrowser`, `commitDocument`, `describePages`; the hand-written XML syntax check, unused result fields, `pickPageSelector`, `expandStyles` and the `host` attribute handling are gone; tests get a shared `setup.ts` and drive the server through the SDK client.
- **Prompt:** the web app's style rules come from the MCP drawing guide (`styleRules`), byte-identical to before.
- **Tests:** shared e2e helpers (`openApp`, `sse`, `toolCallEvents`, `chunkedReplies`); placeholder specs dropped; `settings-review-fixes` split by topic; unit tests use `vi.stubEnv`.
- **Dependencies removed:** `@xmldom/xmldom`, `remark-gfm`, `@anthropic-ai/tokenizer`, `@testing-library/user-event`, `concurrently`, `wait-on`, `eslint`, `eslint-config-next`, `@vitest/coverage-v8`, `shx`, `motion`, `@radix-ui/react-use-controllable-state`, `react-icons`.

Source lines: 74,983 before, 67,418 after (excluding lockfiles).

The last commit merges #984 (the canvas shell). Where the shell, the classic page or their tests depend on a wire format or signature this branch had changed, main's version wins (export fields of the poll response, `addHistory` signature); where main only extended code this branch restructured, main's change is carried into the new structure (`start_session`, `get_selection`, `prepareNewDiagram`, the diagram context's `requestExport`).

## Testing

- `tsc --noEmit` for the web app, `packages/mcp-server`, its shell and `electron`: clean
- `biome ci`: 0 errors (37 pre-existing warnings)
- Root `vitest run`: 719 passed; `packages/mcp-server` `vitest run`: 372 passed
- `next build`: clean
- Playwright, whole web suite on the dev server (4 workers): 280 tests, 279 passed; `language.spec.ts` "a stale offer to switch without saving does nothing once a message is being sent" failed under parallel load and passed alone, as it does on main
2026-10-12 12:35:55 +09:00

592 lines
26 KiB
TypeScript

"use client"
import {
Bookmark,
Copy,
Download,
Edit2,
FileText,
Plus,
Search,
Trash2,
Upload,
} from "lucide-react"
import { useParams } from "next/navigation"
import { useCallback, useEffect, useRef, useState } from "react"
import {
AlertDialog,
AlertDialogAction,
AlertDialogCancel,
AlertDialogContent,
AlertDialogDescription,
AlertDialogFooter,
AlertDialogHeader,
AlertDialogTitle,
} from "@/components/ui/alert-dialog"
import { useDictionary } from "@/hooks/use-dictionary"
import { formatRelativeTime } from "@/lib/relative-time"
import {
deleteTemplate,
duplicateTemplate,
exportTemplates,
getAllTemplates,
importTemplates,
incrementRunCount,
searchTemplates,
type Template,
updateTemplate,
validateImportData,
} from "@/lib/template-storage"
import { TemplateFormDialog } from "./TemplateFormDialog"
interface TemplatePanelProps {
/** Whether it was sent */
onSendTemplate: (template: Template) => Promise<boolean>
currentInput?: string
}
export function TemplatePanel({
onSendTemplate,
currentInput = "",
}: TemplatePanelProps) {
const dict = useDictionary()
const params = useParams<{ lang: string }>()
const [templates, setTemplates] = useState<Template[]>([])
const [loading, setLoading] = useState(true)
const [createDialogOpen, setCreateDialogOpen] = useState(false)
const [editDialogOpen, setEditDialogOpen] = useState(false)
const [templateToEdit, setTemplateToEdit] = useState<Template | null>(null)
const [deleteDialogOpen, setDeleteDialogOpen] = useState(false)
const [templateToDelete, setTemplateToDelete] = useState<Template | null>(
null,
)
const [confirmSendDialogOpen, setConfirmSendDialogOpen] = useState(false)
const [templateToSend, setTemplateToSend] = useState<Template | null>(null)
const [searchQuery, setSearchQuery] = useState("")
const fileInputRef = useRef<HTMLInputElement>(null)
const [importMessage, setImportMessage] = useState<{
type: "success" | "error"
text: string
} | null>(null)
const loadTemplates = useCallback(async () => {
const result = await getAllTemplates()
setTemplates(result)
setLoading(false)
}, [])
// Filter templates by search query
const filteredTemplates = searchQuery.trim()
? searchTemplates(templates, searchQuery)
: templates
useEffect(() => {
loadTemplates()
}, [loadTemplates])
const handleCreateSuccess = () => {
loadTemplates()
}
const handleEditSuccess = () => {
loadTemplates()
}
const handleEdit = (template: Template) => {
setTemplateToEdit(template)
setEditDialogOpen(true)
}
const handleDuplicate = async (template: Template) => {
const duplicated = await duplicateTemplate(
template.id,
dict.templates.copySuffix,
)
if (duplicated) {
loadTemplates()
}
}
const handleDeleteClick = (template: Template) => {
setTemplateToDelete(template)
setDeleteDialogOpen(true)
}
const handleDeleteConfirm = async () => {
if (!templateToDelete) return
const success = await deleteTemplate(templateToDelete.id)
if (success) {
loadTemplates()
}
setDeleteDialogOpen(false)
setTemplateToDelete(null)
}
const handleTogglePin = async (template: Template) => {
const updated = await updateTemplate(template.id, {
pinned: !template.pinned,
})
if (updated) {
loadTemplates()
}
}
// Handle template card click - send directly or show confirmation
const handleTemplateClick = async (template: Template) => {
// If there's unsent content in the input, show confirmation dialog
if (currentInput.trim()) {
setTemplateToSend(template)
setConfirmSendDialogOpen(true)
return
}
// No unsent content, send directly
await sendTemplate(template)
}
// Actually send the template
const sendTemplate = async (template: Template) => {
// A run only when it was sent (not while a message is still being
// sent, or attachments read)
if (await onSendTemplate(template)) {
// Increment run count and update lastUsedAt
await incrementRunCount(template.id)
// Reload to show updated stats
loadTemplates()
}
setConfirmSendDialogOpen(false)
setTemplateToSend(null)
}
// Handle confirmation dialog - user confirmed to send template
const handleConfirmSend = async () => {
if (!templateToSend) return
await sendTemplate(templateToSend)
}
// Handle cancel - close dialog without sending
const handleCancelSend = () => {
setConfirmSendDialogOpen(false)
setTemplateToSend(null)
}
// Export templates to JSON file
const handleExport = () => {
if (templates.length === 0) {
setImportMessage({
type: "error",
text: dict.templates.exportEmpty,
})
return
}
try {
const exportData = exportTemplates(templates)
const json = JSON.stringify(exportData, null, 2)
const blob = new Blob([json], { type: "application/json" })
const url = URL.createObjectURL(blob)
const a = document.createElement("a")
a.href = url
// Local date as YYYY-MM-DD (toISOString would give UTC)
a.download = `templates-${new Date().toLocaleDateString("sv-SE")}.json`
document.body.appendChild(a)
a.click()
document.body.removeChild(a)
URL.revokeObjectURL(url)
setImportMessage({
type: "success",
text: dict.templates.exportSuccess.replace(
"{count}",
String(templates.length),
),
})
setTimeout(() => setImportMessage(null), 3000)
} catch (error) {
console.error("Failed to export templates:", error)
setImportMessage({
type: "error",
text: `Export failed: ${error instanceof Error ? error.message : "Unknown error"}`,
})
}
}
// Import templates from JSON file
const handleImport = async (event: React.ChangeEvent<HTMLInputElement>) => {
const file = event.target.files?.[0]
if (!file) {
setImportMessage({
type: "error",
text: dict.templates.importNoFile,
})
return
}
try {
const text = await file.text()
const data = JSON.parse(text)
// Validate import data
const validation = validateImportData(data)
if (!validation.valid) {
setImportMessage({
type: "error",
text: dict.templates.importFailed.replace(
"{error}",
validation.error || "Invalid data",
),
})
return
}
// Import templates with dedup-append strategy
const result = await importTemplates(data.templates, templates)
// Reload template list
await loadTemplates()
setImportMessage({
type: "success",
text: dict.templates.importSuccess
.replace("{imported}", String(result.imported))
.replace("{skipped}", String(result.skipped)),
})
setTimeout(() => setImportMessage(null), 5000)
} catch (error) {
console.error("Failed to import templates:", error)
setImportMessage({
type: "error",
text: dict.templates.importFailed.replace(
"{error}",
error instanceof Error ? error.message : "Unknown error",
),
})
} finally {
// Reset file input
if (fileInputRef.current) {
fileInputRef.current.value = ""
}
}
}
// Shared by the empty state and the list, so import works in both
const importInput = (
<input
ref={fileInputRef}
type="file"
accept="application/json,.json"
onChange={handleImport}
className="hidden"
/>
)
const importMessageBox = importMessage && (
<div
className={`text-xs px-3 py-2 rounded-lg ${
importMessage.type === "success"
? "bg-green-100 text-green-800 dark:bg-green-900/30 dark:text-green-400"
: "bg-red-100 text-red-800 dark:bg-red-900/30 dark:text-red-400"
}`}
>
{importMessage.text}
</div>
)
// Empty state: no templates at all
if (!loading && templates.length === 0) {
return (
<div className="py-6 px-2 animate-fade-in">
<div className="flex flex-col items-center justify-center py-8 px-4">
<div className="w-16 h-16 rounded-2xl bg-primary/10 flex items-center justify-center mb-4">
<FileText className="w-8 h-8 text-primary/60" />
</div>
<p className="text-sm font-medium text-foreground mb-1">
{dict.templates.emptyTitle}
</p>
<p className="text-xs text-muted-foreground text-center max-w-[240px] mb-4">
{dict.templates.emptyDescription}
</p>
<button
type="button"
className="inline-flex items-center gap-2 px-4 py-2 rounded-lg bg-primary text-primary-foreground text-sm font-medium hover:bg-primary/90 transition-colors"
onClick={() => setCreateDialogOpen(true)}
>
<Plus className="w-4 h-4" />
{dict.templates.createFirst}
</button>
<button
type="button"
onClick={() => fileInputRef.current?.click()}
className="mt-2 inline-flex items-center gap-1.5 px-3 py-1.5 rounded-md text-xs font-medium text-muted-foreground hover:text-foreground hover:bg-muted transition-colors"
>
<Upload className="w-3.5 h-3.5" />
{dict.templates.importTemplates}
</button>
{importInput}
{importMessageBox && (
<div className="mt-3">{importMessageBox}</div>
)}
<TemplateFormDialog
open={createDialogOpen}
onOpenChange={setCreateDialogOpen}
onSuccess={handleCreateSuccess}
/>
</div>
</div>
)
}
// Template list
return (
<div className="py-2 px-2 animate-fade-in">
<div className="space-y-3">
{/* Search bar */}
<div className="relative">
<Search className="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground pointer-events-none" />
<input
type="text"
value={searchQuery}
onChange={(e) => setSearchQuery(e.target.value)}
placeholder={dict.templates.searchPlaceholder}
className="w-full pl-9 pr-3 py-2 text-sm rounded-lg border border-border/60 bg-background focus:outline-none focus:ring-2 focus:ring-primary/30 focus:border-primary/50 transition-all"
/>
</div>
{/* Action buttons */}
<div className="flex items-center gap-2">
<button
type="button"
onClick={() => setCreateDialogOpen(true)}
className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-md text-xs font-medium text-primary hover:bg-primary/10 transition-colors"
>
<Plus className="w-3.5 h-3.5" />
{dict.templates.createButton}
</button>
<div className="flex-1" />
<button
type="button"
onClick={handleExport}
disabled={templates.length === 0}
className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-md text-xs font-medium text-muted-foreground hover:text-foreground hover:bg-muted transition-colors disabled:opacity-50 disabled:cursor-not-allowed"
title={dict.templates.exportTemplates}
>
<Download className="w-3.5 h-3.5" />
{dict.templates.exportTemplates}
</button>
<button
type="button"
onClick={() => fileInputRef.current?.click()}
className="inline-flex items-center gap-1.5 px-3 py-1.5 rounded-md text-xs font-medium text-muted-foreground hover:text-foreground hover:bg-muted transition-colors"
title={dict.templates.importTemplates}
>
<Upload className="w-3.5 h-3.5" />
{dict.templates.importTemplates}
</button>
{importInput}
</div>
{/* Import message */}
{importMessageBox}
<div className="space-y-2">
{loading
? // Loading skeleton
Array.from({ length: 3 }).map((_, i) => (
<div
key={`skeleton-${String(i)}`}
className="w-full p-4 rounded-xl border border-border/60 bg-card animate-pulse"
>
<div className="flex items-start gap-3">
<div className="w-9 h-9 rounded-lg bg-muted shrink-0" />
<div className="flex-1 space-y-2">
<div className="h-4 bg-muted rounded w-2/3" />
<div className="h-3 bg-muted rounded w-1/2" />
</div>
</div>
</div>
))
: filteredTemplates.length === 0
? // Search empty state
!loading && (
<div className="flex flex-col items-center justify-center py-6 px-4">
<Search className="w-8 h-8 text-muted-foreground/40 mb-2" />
<p className="text-sm text-muted-foreground text-center">
{dict.templates.searchNoResults}
</p>
</div>
)
: filteredTemplates.map((template) => (
// biome-ignore lint/a11y/useSemanticElements: Cannot use button - has nested action buttons which causes hydration error
<div
key={template.id}
className="group w-full flex items-center gap-3 p-3 rounded-xl border border-border/60 bg-card hover:bg-accent/50 hover:border-primary/30 transition-all duration-200 cursor-pointer text-left"
onClick={() =>
handleTemplateClick(template)
}
onKeyDown={(e) => {
// Ignore keys bubbling up from the action buttons
if (e.target !== e.currentTarget) return
if (
e.key === "Enter" ||
e.key === " "
) {
e.preventDefault()
handleTemplateClick(template)
}
}}
role="button"
tabIndex={0}
>
<div className="min-w-0 flex-1">
<div className="flex items-center gap-2">
<div className="text-sm font-medium truncate">
{template.title}
</div>
{template.pinned && (
<Bookmark className="w-3 h-3 text-primary fill-primary shrink-0" />
)}
</div>
{template.description && (
<div className="text-xs text-muted-foreground truncate">
{template.description}
</div>
)}
</div>
{/* Actions and stats */}
<div className="relative shrink-0">
<div className="text-[11px] text-muted-foreground whitespace-nowrap group-hover:invisible">
{template.runCount > 0
? `${dict.templates.usedCount.replace("{count}", String(template.runCount))} · ${template.lastUsedAt ? formatRelativeTime(template.lastUsedAt, params.lang, dict.sessionHistory.justNow) : dict.templates.neverUsed}`
: dict.templates.neverUsed}
</div>
<div className="absolute inset-0 flex items-center justify-end gap-0.5 opacity-0 group-hover:opacity-100 group-focus-within:opacity-100 transition-opacity">
<button
type="button"
onClick={(e) => {
e.stopPropagation()
handleTogglePin(template)
}}
className={`p-1.5 rounded-lg transition-all ${
template.pinned
? "text-primary hover:text-primary/80 hover:bg-primary/10"
: "text-muted-foreground hover:text-foreground hover:bg-muted"
}`}
title={
template.pinned
? dict.templates.unpin
: dict.templates.pin
}
>
<Bookmark
className={`w-4 h-4 ${template.pinned ? "fill-current" : ""}`}
/>
</button>
<button
type="button"
onClick={(e) => {
e.stopPropagation()
handleEdit(template)
}}
className="p-1.5 rounded-lg text-muted-foreground hover:text-foreground hover:bg-muted transition-all"
title={dict.common.edit}
>
<Edit2 className="w-4 h-4" />
</button>
<button
type="button"
onClick={(e) => {
e.stopPropagation()
handleDuplicate(template)
}}
className="p-1.5 rounded-lg text-muted-foreground hover:text-foreground hover:bg-muted transition-all"
title={dict.templates.duplicate}
>
<Copy className="w-4 h-4" />
</button>
<button
type="button"
onClick={(e) => {
e.stopPropagation()
handleDeleteClick(template)
}}
className="p-1.5 rounded-lg text-muted-foreground hover:text-destructive hover:bg-destructive/10 transition-all"
title={dict.common.delete}
>
<Trash2 className="w-4 h-4" />
</button>
</div>
</div>
</div>
))}
</div>
</div>
<TemplateFormDialog
open={createDialogOpen}
onOpenChange={setCreateDialogOpen}
onSuccess={handleCreateSuccess}
/>
<TemplateFormDialog
open={editDialogOpen}
onOpenChange={setEditDialogOpen}
template={templateToEdit}
onSuccess={handleEditSuccess}
/>
{/* Delete Confirmation Dialog */}
<AlertDialog
open={deleteDialogOpen}
onOpenChange={setDeleteDialogOpen}
>
<AlertDialogContent className="max-w-sm">
<AlertDialogHeader>
<AlertDialogTitle>
{dict.templates.deleteTitle}
</AlertDialogTitle>
<AlertDialogDescription>
{dict.templates.deleteDescription}
</AlertDialogDescription>
</AlertDialogHeader>
<AlertDialogFooter>
<AlertDialogCancel>
{dict.common.cancel}
</AlertDialogCancel>
<AlertDialogAction
onClick={handleDeleteConfirm}
className="border border-red-300 bg-red-50 text-red-700 hover:bg-red-100 hover:border-red-400"
>
{dict.common.delete}
</AlertDialogAction>
</AlertDialogFooter>
</AlertDialogContent>
</AlertDialog>
{/* Confirm Send Dialog - when there's unsent input */}
<AlertDialog
open={confirmSendDialogOpen}
onOpenChange={setConfirmSendDialogOpen}
>
<AlertDialogContent className="max-w-sm">
<AlertDialogHeader>
<AlertDialogTitle>
{dict.templates.confirmSendTitle}
</AlertDialogTitle>
<AlertDialogDescription>
{dict.templates.confirmSendDescription}
</AlertDialogDescription>
</AlertDialogHeader>
<AlertDialogFooter>
<AlertDialogCancel onClick={handleCancelSend}>
{dict.common.cancel}
</AlertDialogCancel>
<AlertDialogAction onClick={handleConfirmSend}>
{dict.templates.confirmSendButton}
</AlertDialogAction>
</AlertDialogFooter>
</AlertDialogContent>
</AlertDialog>
</div>
)
}