import type { Meta, StoryObj } from "@storybook/react-vite"
import { Separator } from "@hm-design/ui"
import { StateBoard, type BoardState } from "@/components/story-board"
import { StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"

const meta = {
  title: "Components/Data & Display/Separator",
  component: Separator,
  parameters: {
    layout: "padded",
    docs: {
      description: {
        component:
          "현재 HM 규격: 1px 선, 색은 pale warm neutral(Primitive 참조). Radix Separator의 orientation과 decorative(기본 true) API를 유지합니다. decorative=false이면 role=separator가 노출됩니다.",
      },
    },
  },
  argTypes: { orientation: { control: "inline-radio", options: ["horizontal", "vertical"] }, decorative: { control: "boolean" } },
} satisfies Meta<typeof Separator>
export default meta
type Story = StoryObj<typeof meta>

// Representative-page layout (Storybook presentation only): equal columns on PC (iframe width 1000px and up), fewer below that
// (240px minimum). Each specimen sits in its own single-column StateBoard (min larger than any column), so every subtitle and divider
// has the width of its column; a section with fewer specimens than columns leaves the remaining columns empty.
const specimenColumns = {
  2: "min-[1000px]:grid-cols-2",
  3: "min-[1000px]:grid-cols-3",
  4: "min-[1000px]:grid-cols-4",
} as const

function SpecimenGrid({ states, columns }: { states: BoardState[]; columns: 2 | 3 | 4 }) {
  return (
    <div className={`grid items-start gap-6 [grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr))] ${specimenColumns[columns]}`}>
      {states.map((state) => (
        <StateBoard key={state.id} min={10000} states={[state]} />
      ))}
    </div>
  )
}

// Representative Story: Overview (Horizontal) and Variants (Vertical, Semantic) are merged into one Variants section. 3 columns on PC.
export const All: Story = {
  name: "Separator",
  parameters: { layout: "fullscreen", controls: { disable: true } },
  render: () => (
    <StoryPage>
      <StoryPageHeader title="Separator" />
      <StorySection title="Variants">
        <SpecimenGrid
          columns={3}
          states={[
            {
              id: "horizontal",
              label: "Horizontal",
              children: (
                <div className="grid gap-3 text-sm">
                  <div><strong>제목</strong><p>제목에 연결된 설명입니다.</p></div>
                  <Separator />
                  <span>Below</span>
                </div>
              ),
            },
            {
              id: "vertical",
              label: "Vertical",
              children: (
                <div className="flex h-6 items-center gap-3 text-sm">
                  <span>Left</span>
                  <Separator orientation="vertical" />
                  <span>Middle</span>
                  <Separator orientation="vertical" />
                  <span>Right</span>
                </div>
              ),
            },
            {
              id: "semantic",
              label: "Semantic",
              children: (
                <div className="grid gap-3 text-sm">
                  <span>Section A</span>
                  <Separator decorative={false} />
                  <span>Section B</span>
                </div>
              ),
            },
          ]}
        />
      </StorySection>
    </StoryPage>
  ),
}

export const Horizontal: Story = { tags: ["verification"], render: () => <div className="max-w-xs"><Separator /></div> }
export const Vertical: Story = { tags: ["verification"], render: () => <div className="flex h-8 items-center"><Separator orientation="vertical" /></div> }