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next-ai-draw-io/app/[lang]/admin/page.tsx
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"use client"
import {
AlertTriangle,
Check,
Loader2,
LockKeyhole,
ShieldCheck,
} from "lucide-react"
import { useCallback, useEffect, useState } from "react"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"
import { Label } from "@/components/ui/label"
import { Switch } from "@/components/ui/switch"
import { useDictionary } from "@/hooks/use-dictionary"
import {
SETTING_GROUPS,
SETTINGS_BY_GROUP,
} from "@/lib/admin/settings-registry"
import { getApiEndpoint } from "@/lib/base-path"
import { formatMessage } from "@/lib/i18n/utils"
import { cn } from "@/lib/utils"
import {
type AdminProvider,
adminFetch,
type EnvProvider,
isSecretValue,
SESSION_PASSWORD_KEY,
type SettingState,
type SettingsMap,
savedTextOf,
} from "./admin-shared"
import { ModelsSection } from "./models-section"
import { SettingField } from "./setting-field"
// ── Page ─────────────────────────────────────────────────────────────
const NAV_GROUP_IDS = ["models", ...SETTING_GROUPS.map((g) => g.id)]
export default function AdminPage() {
const dict = useDictionary()
// Localized group title/description, keyed by group id
const groupText = (id: string) =>
(
dict.admin.groups as Record<
string,
{ title: string; description: string } | undefined
>
)[id]
const navItems = NAV_GROUP_IDS.map((id) => ({
id,
title:
id === "models" ? dict.admin.models : (groupText(id)?.title ?? id),
}))
const [password, setPassword] = useState("")
const [authedPassword, setAuthedPassword] = useState<string | null>(null)
const [authError, setAuthError] = useState("")
const [authLoading, setAuthLoading] = useState(false)
const [writable, setWritable] = useState(true)
// Models section state
const [providers, setProviders] = useState<AdminProvider[]>([])
const [envProviders, setEnvProviders] = useState<EnvProvider[]>([])
const [savedProviders, setSavedProviders] = useState<string>("[]")
const providersDirty = JSON.stringify(providers) !== savedProviders
// General settings state
const [settings, setSettings] = useState<SettingsMap>({})
const [pending, setPending] = useState<Record<string, string | null>>({})
const [errors, setErrors] = useState<Record<string, string>>({})
const [enabledGroups, setEnabledGroups] = useState<Record<string, boolean>>(
{},
)
const [saving, setSaving] = useState(false)
const [saveMessage, setSaveMessage] = useState<{
ok: boolean
text: string
} | null>(null)
const [activeGroup, setActiveGroup] = useState("models")
const dirtyCount = Object.keys(pending).length + (providersDirty ? 1 : 0)
const applySettingsResponse = useCallback(
(data: { writable: boolean; settings: SettingState[] }) => {
setWritable(data.writable)
const map: SettingsMap = {}
for (const s of data.settings) map[s.key] = s
setSettings(map)
// Seed each toggle once from whether the group has configured
// values; don't stomp a user's explicit toggle on later saves
setEnabledGroups((prev) => {
const next = { ...prev }
for (const group of SETTING_GROUPS) {
if (!group.toggleable || group.id in next) continue
next[group.id] = !!SETTINGS_BY_GROUP.get(group.id)?.some(
(d) => map[d.key]?.source !== "default",
)
}
return next
})
},
[],
)
const applyProvidersResponse = useCallback(
(data: {
providers: AdminProvider[]
envProviders?: EnvProvider[]
}) => {
setProviders(data.providers)
setSavedProviders(JSON.stringify(data.providers))
setEnvProviders(data.envProviders ?? [])
},
[],
)
const login = useCallback(
async (pw: string) => {
setAuthLoading(true)
setAuthError("")
try {
const [settingsData, providersData] = await Promise.all([
adminFetch("/api/admin/settings", pw),
adminFetch("/api/admin/providers", pw),
])
applySettingsResponse(settingsData)
applyProvidersResponse(providersData)
setAuthedPassword(pw)
sessionStorage.setItem(SESSION_PASSWORD_KEY, pw)
} catch (err) {
setAuthError(
err instanceof Error ? err.message : dict.admin.loginFailed,
)
} finally {
setAuthLoading(false)
}
},
[applySettingsResponse, applyProvidersResponse, dict],
)
// Restore session on mount
useEffect(() => {
const stored = sessionStorage.getItem(SESSION_PASSWORD_KEY)
if (stored) void login(stored)
}, [login])
// Warn before leaving with unsaved changes
const hasDirty = dirtyCount > 0
useEffect(() => {
if (!hasDirty) return
const handler = (e: BeforeUnloadEvent) => {
e.preventDefault()
// Some browsers only show the prompt when returnValue is set
e.returnValue = ""
}
window.addEventListener("beforeunload", handler)
return () => window.removeEventListener("beforeunload", handler)
}, [hasDirty])
// Highlight the section currently in view in the sidebar
useEffect(() => {
if (!authedPassword) return
const observer = new IntersectionObserver(
(entries) => {
const visible = entries
.filter((e) => e.isIntersecting)
.sort(
(a, b) =>
a.boundingClientRect.top - b.boundingClientRect.top,
)
if (visible[0]) setActiveGroup(visible[0].target.id)
},
{ rootMargin: "-10% 0px -50% 0px" },
)
for (const id of NAV_GROUP_IDS) {
const el = document.getElementById(id)
if (el) observer.observe(el)
}
return () => observer.disconnect()
}, [authedPassword])
const handleChange = useCallback(
(key: string, value: string | null) => {
setSaveMessage(null)
setErrors((prev) => {
if (!(key in prev)) return prev
const next = { ...prev }
delete next[key]
return next
})
setPending((prev) => {
const state = settings[key]
const isRevert =
value !== null &&
state?.source === "file" &&
!isSecretValue(state?.value) &&
value === savedTextOf(state)
const isNoop =
value === "" &&
(!state || state.source !== "file") &&
!isSecretValue(state?.value)
if (isRevert || isNoop) {
const next = { ...prev }
delete next[key]
return next
}
return { ...prev, [key]: value === "" ? null : value }
})
},
[settings],
)
// Toggling a group off stages deletion of its saved values so the
// feature actually turns off on save; toggling on drops those deletions.
const handleGroupToggle = useCallback(
(groupId: string, enabled: boolean) => {
setSaveMessage(null)
setEnabledGroups((prev) => ({ ...prev, [groupId]: enabled }))
const keys = (SETTINGS_BY_GROUP.get(groupId) ?? []).map(
(d) => d.key,
)
setPending((prev) => {
const next = { ...prev }
for (const key of keys) {
if (!enabled) {
// Stage deletion only for values currently set
if (settings[key]?.source !== "default")
next[key] = null
} else if (next[key] === null) {
delete next[key]
}
}
return next
})
},
[settings],
)
const handleSave = useCallback(async () => {
if (!authedPassword || dirtyCount === 0) return
setSaving(true)
setSaveMessage(null)
setErrors({})
try {
if (providersDirty) {
const data = await adminFetch(
"/api/admin/providers",
authedPassword,
{ method: "PUT", body: JSON.stringify({ providers }) },
)
applyProvidersResponse(data)
}
if (Object.keys(pending).length > 0) {
const res = await fetch(getApiEndpoint("/api/admin/settings"), {
method: "PUT",
headers: {
"Content-Type": "application/json",
"x-admin-password": authedPassword,
},
body: JSON.stringify({ values: pending }),
})
const data = await res.json().catch(() => ({}))
if (!res.ok) {
// Per-field validation errors come back as {errors: {...}}
if (data.errors) {
setErrors(data.errors)
const firstKey = Object.keys(data.errors)[0]
document.getElementById(`setting-${firstKey}`)?.focus()
throw new Error(dict.admin.invalidSettings)
}
throw new Error(
data.error || `Request failed (${res.status})`,
)
}
applySettingsResponse(data)
setPending({})
}
setSaveMessage({
ok: true,
text: dict.admin.saved,
})
setTimeout(() => setSaveMessage(null), 4000)
} catch (err) {
setSaveMessage({
ok: false,
text:
err instanceof Error ? err.message : dict.admin.saveFailed,
})
} finally {
setSaving(false)
}
}, [
authedPassword,
pending,
providers,
providersDirty,
dirtyCount,
applySettingsResponse,
applyProvidersResponse,
dict,
])
// ── Login screen ─────────────────────────────────────────────────
if (!authedPassword) {
return (
<div className="flex min-h-screen items-center justify-center bg-background p-4">
<form
className="w-full max-w-sm space-y-4 rounded-lg border bg-card p-6 shadow-sm"
onSubmit={(e) => {
e.preventDefault()
void login(password)
}}
>
<div className="flex items-center gap-2">
<LockKeyhole
className="h-5 w-5 text-muted-foreground"
aria-hidden="true"
/>
<h1 className="text-lg font-semibold">
{dict.admin.title}
</h1>
</div>
<p className="text-sm text-muted-foreground">
{dict.admin.loginPrompt}
</p>
<div className="space-y-1.5">
<Label htmlFor="admin-password">
{dict.admin.password}
</Label>
<Input
id="admin-password"
name="admin-password"
type="password"
value={password}
autoComplete="current-password"
spellCheck={false}
onChange={(e) => setPassword(e.target.value)}
/>
</div>
<p
className={cn(
"text-sm text-destructive",
!authError && "sr-only",
)}
aria-live="polite"
>
{authError}
</p>
<Button
type="submit"
className="w-full"
disabled={authLoading}
>
{authLoading ? (
<>
<Loader2
className="mr-2 h-4 w-4 animate-spin motion-reduce:animate-none"
aria-hidden="true"
/>
{dict.admin.signingIn}
</>
) : (
dict.admin.signIn
)}
</Button>
</form>
</div>
)
}
// ── Settings screen ──────────────────────────────────────────────
return (
<div className="min-h-screen bg-background">
<header className="sticky top-0 z-20 border-b bg-background/95 backdrop-blur">
<div className="mx-auto flex max-w-6xl items-center justify-between px-4 py-3">
<div className="flex items-center gap-2">
<ShieldCheck
className="h-5 w-5 text-primary"
aria-hidden="true"
/>
<h1 className="text-lg font-semibold">
{dict.admin.title}
</h1>
</div>
<p className="text-xs text-muted-foreground">
{dict.admin.precedence}
</p>
</div>
</header>
{!writable && (
<div className="border-b bg-amber-500/10">
<div className="mx-auto flex max-w-6xl items-center gap-2 px-4 py-3 text-sm text-amber-700 dark:text-amber-400">
<AlertTriangle
className="h-4 w-4 shrink-0"
aria-hidden="true"
/>
{dict.admin.notWritable}
</div>
</div>
)}
<div className="mx-auto flex max-w-6xl gap-8 px-4 py-6">
<nav
aria-label={dict.admin.settingGroups}
className="sticky top-20 hidden h-fit w-44 shrink-0 md:block"
>
<ul className="space-y-1">
{navItems.map((item) => (
<li key={item.id}>
<a
href={`#${item.id}`}
aria-current={
activeGroup === item.id
? "true"
: undefined
}
className={cn(
"block rounded-md px-3 py-1.5 text-sm hover:bg-muted hover:text-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring",
activeGroup === item.id
? "bg-muted font-medium text-foreground"
: "text-muted-foreground",
)}
>
{item.title}
</a>
</li>
))}
</ul>
</nav>
<main className="min-w-0 flex-1 pb-24">
{/* Models section */}
<section aria-labelledby="models" className="mb-10">
<h2
id="models"
className="scroll-mt-20 text-base font-semibold"
>
{dict.admin.models}
</h2>
<p className="mb-3 mt-1 text-sm text-muted-foreground text-pretty">
{dict.admin.modelsDescription}
</p>
<div className="overflow-hidden rounded-lg border bg-card">
<ModelsSection
providers={providers}
envProviders={envProviders}
disabled={!writable || saving}
password={authedPassword}
onChange={(next) => {
setSaveMessage(null)
setProviders(next)
}}
/>
</div>
</section>
{/* Registry-driven groups */}
{SETTING_GROUPS.map((group) => {
const defs = SETTINGS_BY_GROUP.get(group.id) ?? []
const groupOff =
group.toggleable && !enabledGroups[group.id]
const fieldsDisabled = !writable || saving || !!groupOff
const gt = groupText(group.id)
const title = gt?.title ?? group.title
return (
<section
key={group.id}
aria-labelledby={group.id}
className="mb-10"
>
<div className="flex items-center justify-between gap-4">
<h2
id={group.id}
className="scroll-mt-20 text-base font-semibold"
>
{title}
</h2>
{group.toggleable && (
<label
className={cn(
"flex cursor-pointer items-center gap-2 rounded-full border px-3 py-1.5 text-xs font-medium transition-colors motion-reduce:transition-none",
enabledGroups[group.id]
? "border-primary/30 bg-primary/5 text-primary"
: "border-border bg-muted/50 text-muted-foreground hover:border-foreground/30 hover:text-foreground",
)}
>
{enabledGroups[group.id]
? dict.admin.enabled
: dict.admin.disabled}
<Switch
checked={
!!enabledGroups[group.id]
}
disabled={!writable || saving}
aria-label={formatMessage(
dict.admin.enableGroup,
{ group: title },
)}
onCheckedChange={(checked) =>
handleGroupToggle(
group.id,
checked,
)
}
/>
</label>
)}
</div>
<p className="mb-3 mt-1 text-sm text-muted-foreground text-pretty">
{gt?.description ?? group.description}
</p>
<div
className={cn(
"rounded-lg border bg-card px-4",
groupOff &&
"pointer-events-none opacity-50",
)}
>
{defs.map((def) => (
<SettingField
key={def.key}
def={def}
state={settings[def.key]}
pendingValue={pending[def.key]}
error={errors[def.key]}
disabled={fieldsDisabled}
onChange={(v) =>
handleChange(def.key, v)
}
/>
))}
</div>
</section>
)
})}
</main>
</div>
{/* Always-mounted live region so save results are announced */}
<p aria-live="polite" className="sr-only">
{saveMessage?.text ?? ""}
</p>
{(dirtyCount > 0 || saveMessage) && (
<div className="fixed inset-x-0 bottom-0 z-30 border-t bg-background/95 backdrop-blur">
<div className="mx-auto flex max-w-6xl items-center justify-between gap-4 px-4 py-3">
<p
className={cn(
"flex min-w-0 items-center gap-1.5 truncate text-sm",
saveMessage?.ok
? "text-green-600 dark:text-green-400"
: saveMessage
? "text-destructive"
: "text-muted-foreground",
)}
>
{saveMessage?.ok && (
<Check
className="h-4 w-4 shrink-0"
aria-hidden="true"
/>
)}
{saveMessage && !saveMessage.ok
? saveMessage.text
: dirtyCount > 0
? dict.admin.unsavedChanges
: saveMessage?.text}
</p>
{dirtyCount > 0 && (
<div className="flex shrink-0 gap-2">
<Button
type="button"
variant="outline"
disabled={saving}
onClick={() => {
setPending({})
setErrors({})
setProviders(JSON.parse(savedProviders))
}}
>
{dict.admin.discard}
</Button>
<Button
type="button"
disabled={saving || !writable}
onClick={() => void handleSave()}
>
{saving ? (
<>
<Loader2
className="mr-2 h-4 w-4 animate-spin motion-reduce:animate-none"
aria-hidden="true"
/>
{dict.admin.saving}
</>
) : (
dict.admin.saveChanges
)}
</Button>
</div>
)}
</div>
</div>
)}
</div>
)
}