import { useState } from "react"
import type { Meta, StoryObj } from "@storybook/react-vite"
import {
  Menubar,
  MenubarCheckboxItem,
  MenubarContent,
  MenubarGroup,
  MenubarItem,
  MenubarLabel,
  MenubarMenu,
  MenubarRadioGroup,
  MenubarRadioItem,
  MenubarSeparator,
  MenubarShortcut,
  MenubarSub,
  MenubarSubContent,
  MenubarSubTrigger,
  MenubarTrigger,
} from "@hm-design/ui"
import { STORY_KICKER, StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"

// Menubar is a desktop menu bar (Left / Right between top menus). The representative Story is the real bar and opens the real
// menus; Radix owns the keyboard model and focus. Hidden verification Stories isolate trigger focus and open + focus.

function Specimen() {
  const [grid, setGrid] = useState(true)
  const [ruler, setRuler] = useState(false)
  const [zoom, setZoom] = useState("100")
  return (
    <Menubar>
      <MenubarMenu>
        <MenubarTrigger>파일</MenubarTrigger>
        <MenubarContent>
          <MenubarItem>
            새로 만들기 <MenubarShortcut>⌘N</MenubarShortcut>
          </MenubarItem>
          <MenubarItem>
            열기 <MenubarShortcut>⌘O</MenubarShortcut>
          </MenubarItem>
          <MenubarItem disabled>저장 (사용 불가)</MenubarItem>
          <MenubarSeparator />
          <MenubarSub>
            <MenubarSubTrigger>내보내기</MenubarSubTrigger>
            <MenubarSubContent>
              <MenubarItem>PDF</MenubarItem>
              <MenubarItem>이미지</MenubarItem>
            </MenubarSubContent>
          </MenubarSub>
          <MenubarSeparator />
          <MenubarItem variant="destructive">종료</MenubarItem>
        </MenubarContent>
      </MenubarMenu>
      <MenubarMenu>
        <MenubarTrigger>편집</MenubarTrigger>
        <MenubarContent>
          <MenubarItem>
            실행 취소 <MenubarShortcut>⌘Z</MenubarShortcut>
          </MenubarItem>
          <MenubarItem>
            다시 실행 <MenubarShortcut>⇧⌘Z</MenubarShortcut>
          </MenubarItem>
        </MenubarContent>
      </MenubarMenu>
      <MenubarMenu>
        <MenubarTrigger>보기</MenubarTrigger>
        <MenubarContent>
          <MenubarGroup>
            <MenubarLabel>표시</MenubarLabel>
            <MenubarCheckboxItem checked={grid} onCheckedChange={setGrid}>
              격자
            </MenubarCheckboxItem>
            <MenubarCheckboxItem checked={ruler} onCheckedChange={setRuler}>
              눈금자
            </MenubarCheckboxItem>
          </MenubarGroup>
          <MenubarSeparator />
          <MenubarLabel>확대</MenubarLabel>
          <MenubarRadioGroup value={zoom} onValueChange={setZoom}>
            <MenubarRadioItem value="75">75%</MenubarRadioItem>
            <MenubarRadioItem value="100">100%</MenubarRadioItem>
            <MenubarRadioItem value="125">125%</MenubarRadioItem>
          </MenubarRadioGroup>
        </MenubarContent>
      </MenubarMenu>
    </Menubar>
  )
}

const meta = { title: "Components/Navigation/Menubar", component: Menubar, parameters: { layout: "padded" } } satisfies Meta<typeof Menubar>
export default meta
type Story = StoryObj<typeof meta>

// Representative Story: File (item, shortcut, disabled, separator, sub menu, destructive), Edit, View (label, checkbox, radio).
export const All: Story = {
  name: "Menubar",
  parameters: { layout: "fullscreen", controls: { disable: true } },
  render: () => (
    <StoryPage>
      <StoryPageHeader
        kicker={STORY_KICKER.components}
        title="Menubar"
        description="데스크톱 앱 형태의 상단 메뉴 막대입니다. 메뉴가 열린 상태에서 좌우 방향키로 이웃 메뉴로 이동합니다."
      />
      <StorySection title="Overview" description="파일(단축키 · Disabled · 하위 메뉴 · 위험 항목), 편집, 보기(Label · Checkbox · Radio)입니다. 메뉴를 눌러 엽니다.">
        <div style={{ minHeight: 384 }}>
          <Specimen />
        </div>
      </StorySection>
    </StoryPage>
  ),
}

function FocusSpecimen({ open = false }: { open?: boolean }) {
  return (
    <div style={{ minHeight: 160 }}>
      <Menubar defaultValue={open ? "file" : undefined}>
        <MenubarMenu value="file">
          <MenubarTrigger>파일</MenubarTrigger>
          <MenubarContent>
            <MenubarItem>새로 만들기</MenubarItem>
            <MenubarItem disabled>저장 (사용 불가)</MenubarItem>
          </MenubarContent>
        </MenubarMenu>
        <MenubarMenu value="disabled">
          <MenubarTrigger disabled>사용 불가</MenubarTrigger>
        </MenubarMenu>
      </Menubar>
    </div>
  )
}

export const TriggerFocus: Story = {
  tags: ["verification"],
  render: () => <FocusSpecimen />,
  play: async ({ canvasElement }) => {
    canvasElement.querySelector<HTMLElement>('[data-slot="menubar-trigger"]')?.focus()
  },
}

export const OpenFocus: Story = {
  tags: ["verification"],
  render: () => <FocusSpecimen open />,
  play: async ({ canvasElement }) => {
    // Verification only: actual trigger focus while its real menu is open.
    // Production keyboard opening still moves focus into the menu (Radix default).
    canvasElement.querySelector<HTMLElement>('[data-slot="menubar-trigger"]')?.focus()
  },
}