#34

frontend/src/components/users/BehaviourSettingsSection.tsx

@@ -0,0 +1,192 @@
+import { useEffect, useMemo, useState } from 'react'
+
+import { Button } from '@/components/ui/button'
+import { toast } from '@/components/ui/use-toast'
+import { getClientBehaviorSettings,
+	 setClientBehaviorSettings } from '@/lib/settings'
+import { cn } from '@/lib/utils'
+
+import type {
+    ClientAnimationMode,
+    ClientBehaviorSettings,
+    ClientEmbedAutoLoadMode,
+    ClientThumbnailMode } from '@/lib/settings'
+import type { FC, ReactNode } from 'react'
+
+type Props = {
+    sectionClassName: string }
+
+type SegmentedOption<T extends string> = {
+    value: T
+    label: string }
+
+type SegmentedControlProps<T extends string> = {
+    value:     T
+    options:   SegmentedOption<T>[]
+    onChange:  (value: T) => void }
+
+type SettingBlockProps = {
+    title:       string
+    description: string
+    children:    ReactNode }
+
+const animationOptions: SegmentedOption<ClientAnimationMode>[] = [
+    { value: 'normal', label: '通常' },
+    { value: 'reduced', label: '控えめ' },
+    { value: 'off', label: 'なし' },
+]
+
+const embedAutoLoadOptions: SegmentedOption<ClientEmbedAutoLoadMode>[] = [
+    { value: 'auto', label: '自動' },
+    { value: 'manual', label: 'クリック時' },
+    { value: 'off', label: '読み込まない' },
+]
+
+const thumbnailModeOptions: SegmentedOption<ClientThumbnailMode>[] = [
+    { value: 'normal', label: '通常' },
+    { value: 'light', label: '軽量' },
+    { value: 'off', label: '非表示' },
+]
+
+
+const SegmentedControl = <T extends string,>(
+    { value, options, onChange }: SegmentedControlProps<T>,
+) => {
+  return (
+      <div
+	  role="radiogroup"
+	  className="flex flex-wrap gap-2 rounded-xl border border-border bg-muted/40 p-1">
+	{options.map (option => (
+	    <button
+		key={option.value}
+		type="button"
+		role="radio"
+		aria-checked={value === option.value}
+		className={cn (
+		    'min-w-0 flex-1 rounded-lg px-3 py-2 text-sm font-medium',
+		    'transition-colors focus-visible:outline-none focus-visible:ring-2',
+		    'focus-visible:ring-ring focus-visible:ring-offset-2',
+		    value === option.value
+		    ? 'bg-background text-foreground shadow-sm'
+		    : 'text-muted-foreground hover:bg-background/70 hover:text-foreground',
+		)}
+		onClick={() => onChange (option.value)}>
+	      {option.label}
+	    </button>))}
+      </div>)
+}
+
+
+const SettingBlock: FC<SettingBlockProps> = (
+    { title, description, children },
+) => (
+    <div className="space-y-3 rounded-xl border border-border/70 bg-background/70 p-4">
+      <div className="space-y-1">
+	<h3 className="text-sm font-semibold">{title}</h3>
+	<p className="text-sm text-muted-foreground">{description}</p>
+      </div>
+      {children}
+    </div>)
+
+
+const BehaviourSettingsSection: FC<Props> = ({ sectionClassName }) => {
+  const [savedSettings, setSavedSettings] =
+      useState<ClientBehaviorSettings> (() => getClientBehaviorSettings ())
+  const [draftSettings, setDraftSettings] =
+      useState<ClientBehaviorSettings> (() => getClientBehaviorSettings ())
+
+  useEffect (() => {
+    const current = getClientBehaviorSettings ()
+    setSavedSettings (current)
+    setDraftSettings (current)
+  }, [])
+
+  const hasUnsavedChanges = useMemo (
+      () => JSON.stringify (draftSettings) !== JSON.stringify (savedSettings),
+      [draftSettings, savedSettings],
+  )
+
+  const updateDraft = <Key extends keyof ClientBehaviorSettings,> (
+      key:    Key,
+      value:  ClientBehaviorSettings[Key],
+  ) => {
+    setDraftSettings (current => ({ ...current, [key]: value }))
+  }
+
+  const handleSave = () => {
+    const next = setClientBehaviorSettings (draftSettings)
+    setSavedSettings (next)
+    setDraftSettings (next)
+    toast ({ title: '動作設定を保存しました' })
+  }
+
+  const handleDiscard = () => {
+    setDraftSettings (savedSettings)
+  }
+
+  return (
+      <section className={sectionClassName}>
+	<div className="flex flex-wrap items-start justify-between gap-3">
+	  <div className="space-y-1">
+	    <h2 className="text-xl font-bold">動作</h2>
+	    <p className="text-sm text-muted-foreground">
+	      この設定は現在のブラウザに保存されます。
+	    </p>
+	    <p className="text-sm text-muted-foreground">
+	      重い端末や通信量を抑えたい場合に調整します。
+	    </p>
+	    {hasUnsavedChanges && (
+		<p className="text-sm text-amber-700 dark:text-amber-300">
+		  未保存の変更があります
+		</p>)}
+	  </div>
+
+	  <div className="flex flex-wrap gap-2">
+	    <Button
+		type="button"
+		variant="outline"
+		disabled={hasUnsavedChanges === false}
+		onClick={handleDiscard}>
+	      変更を破棄
+	    </Button>
+	    <Button
+		type="button"
+		disabled={hasUnsavedChanges === false}
+		onClick={handleSave}>
+	      保存
+	    </Button>
+	  </div>
+	</div>
+
+	<div className="space-y-4">
+	  <SettingBlock
+	      title="アニメーション"
+	      description="画面遷移やレイアウト移動の動きを調整します。">
+	    <SegmentedControl
+		value={draftSettings.animation ?? 'normal'}
+		options={animationOptions}
+		onChange={value => updateDraft ('animation', value)}/>
+	  </SettingBlock>
+
+	  <SettingBlock
+	      title="埋め込み自動読込"
+	      description="外部埋め込みを自動で読み込むかを切り替えます。">
+	    <SegmentedControl
+		value={draftSettings.embedAutoLoad ?? 'auto'}
+		options={embedAutoLoadOptions}
+		onChange={value => updateDraft ('embedAutoLoad', value)}/>
+	  </SettingBlock>
+
+	  <SettingBlock
+	      title="サムネイル表示"
+	      description="投稿一覧や詳細の画像表示を軽量化します。">
+	    <SegmentedControl
+		value={draftSettings.thumbnailMode ?? 'normal'}
+		options={thumbnailModeOptions}
+		onChange={value => updateDraft ('thumbnailMode', value)}/>
+	  </SettingBlock>
+	</div>
+      </section>)
+}
+
+export default BehaviourSettingsSection