import type { ReactNode } from "react"
import type { Meta, StoryObj } from "@storybook/react-vite"
import { ResizableHandle, ResizablePanel, ResizablePanelGroup } from "@hm-design/ui"
import { StateBoard } from "@/components/story-board"
import { STORY_KICKER, StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"

// The representative Story shows real, draggable layouts; the same specimens also exist as Stories tagged `verification` (hidden
// from the sidebar). react-resizable-panels v4 sizes: a string without a unit ("30") or with "%" is a percentage, a number is
// pixels. The frames (size, border) and panel content are Story layout. These are not Dashboard layouts.

const frame = (node: ReactNode, height = 200) => (
  <div className="rounded-md border" style={{ width: "100%", maxWidth: 560, height }}>
    {node}
  </div>
)

const Pane = ({ children }: { children: ReactNode }) => <div className="grid size-full place-items-center p-3 text-sm">{children}</div>

function Horizontal() {
  return frame(
    <ResizablePanelGroup orientation="horizontal" aria-label="가로 분할" id="h">
      <ResizablePanel defaultSize="30" minSize="15" id="h-list">
        <Pane>목록 (min 15%)</Pane>
      </ResizablePanel>
      <ResizableHandle aria-label="목록 폭 조절" />
      <ResizablePanel defaultSize="70" minSize="20" id="h-detail">
        <Pane>상세</Pane>
      </ResizablePanel>
    </ResizablePanelGroup>
  )
}

function Vertical() {
  return frame(
    <ResizablePanelGroup orientation="vertical" aria-label="세로 분할" id="v">
      <ResizablePanel defaultSize="40" minSize="20" id="v-top">
        <Pane>위</Pane>
      </ResizablePanel>
      <ResizableHandle withHandle aria-label="높이 조절" />
      <ResizablePanel defaultSize="60" minSize="20" id="v-bottom">
        <Pane>아래</Pane>
      </ResizablePanel>
    </ResizablePanelGroup>,
    240
  )
}

function WithHandle() {
  return frame(
    <ResizablePanelGroup orientation="horizontal" aria-label="handle 분할" id="g">
      <ResizablePanel defaultSize="50" minSize="20" id="g-a">
        <Pane>A</Pane>
      </ResizablePanel>
      <ResizableHandle withHandle aria-label="A와 B 사이 조절" />
      <ResizablePanel defaultSize="50" minSize="20" id="g-b">
        <Pane>B</Pane>
      </ResizablePanel>
    </ResizablePanelGroup>
  )
}

function MinMax() {
  return frame(
    <ResizablePanelGroup orientation="horizontal" aria-label="min max 분할" id="m">
      <ResizablePanel defaultSize="40" minSize="25" maxSize="60" id="m-a">
        <Pane>25% – 60%</Pane>
      </ResizablePanel>
      <ResizableHandle withHandle aria-label="min max 조절" />
      <ResizablePanel defaultSize="60" minSize="20" id="m-b">
        <Pane>나머지</Pane>
      </ResizablePanel>
    </ResizablePanelGroup>
  )
}

function Collapsible() {
  return frame(
    <ResizablePanelGroup orientation="horizontal" aria-label="접힘 분할" id="c">
      <ResizablePanel defaultSize="30" minSize="15" collapsible collapsedSize="0" id="c-side">
        <Pane>사이드 (끌면 접힘)</Pane>
      </ResizablePanel>
      <ResizableHandle withHandle aria-label="사이드 폭 조절" />
      <ResizablePanel defaultSize="70" minSize="30" id="c-main">
        <Pane>본문</Pane>
      </ResizablePanel>
    </ResizablePanelGroup>
  )
}

const sections = [
  { id: "horizontal", label: "Horizontal (list min 15%)", node: <Horizontal /> },
  { id: "vertical", label: "Vertical with grip", node: <Vertical /> },
  { id: "handle", label: "Horizontal with grip", node: <WithHandle /> },
  { id: "minmax", label: "Min / max (25%–60%)", node: <MinMax /> },
  { id: "collapsible", label: "Collapsible panel", node: <Collapsible /> },
]

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

const board = (...ids: string[]) => (
  <StateBoard min={580} states={sections.filter((s) => ids.includes(s.id)).map((s) => ({ id: s.id, label: s.label, children: s.node }))} />
)

// Representative Story: the common Story page; the sections group the same specimens.
export const All: Story = {
  name: "Resizable",
  parameters: { layout: "fullscreen", controls: { disable: true } },
  render: () => (
    <StoryPage>
      <StoryPageHeader
        kicker={STORY_KICKER.components}
        title="Resizable"
        description="경계선을 끌어 인접한 패널의 크기를 조절하는 레이아웃입니다."
      />
      <StorySection title="Overview">{board("horizontal")}</StorySection>
      <StorySection title="Variants" description="세로 방향과 grip 표시입니다.">{board("vertical", "handle")}</StorySection>
      <StorySection title="Usage" description="최소·최대 크기와 접을 수 있는 패널입니다.">{board("minmax", "collapsible")}</StorySection>
    </StoryPage>
  ),
}

export const HorizontalLayout: Story = { tags: ["verification"], name: "Horizontal", render: () => <Horizontal /> }
export const VerticalLayout: Story = { tags: ["verification"], name: "Vertical", render: () => <Vertical /> }
export const MinMaxLayout: Story = { tags: ["verification"], name: "Min Max", render: () => <MinMax /> }