import type { Meta, StoryObj } from "@storybook/react-vite"
import { Button, Input, Popover, PopoverClose, PopoverContent, PopoverTrigger } from "@hm-design/ui"
import { StateBoard, type BoardState } from "@/components/story-board"
import { StoryPage, StoryPageHeader, StorySection } from "@/components/story-page"

// Popover is a non-modal Radix overlay (Portal). The representative Story opens the real panels from their triggers;
// the verification Story starts one open. Radix owns outside click / Escape close and focus return.

function Info({ defaultOpen }: { defaultOpen?: boolean }) {
  return (
    <Popover defaultOpen={defaultOpen}>
      <PopoverTrigger asChild>
        <Button variant="primary" appearance="outline">
          정보 보기
        </Button>
      </PopoverTrigger>
      <PopoverContent aria-label="프로젝트 안내">
        <div className="grid gap-1">
          <p className="font-bold">프로젝트 안내</p>
          <p>일정과 담당자 정보를 현재 화면 위에서 확인합니다. 바깥을 누르거나 Esc를 누르면 닫힙니다.</p>
        </div>
      </PopoverContent>
    </Popover>
  )
}

function FormPanel() {
  return (
    <Popover>
      <PopoverTrigger asChild>
        <Button variant="primary" appearance="outline">
          이름 변경
        </Button>
      </PopoverTrigger>
      <PopoverContent align="start" aria-label="프로젝트 이름 변경">
        <div className="grid gap-3">
          <label htmlFor="popover-name" className="text-sm font-medium text-foreground">
            프로젝트명
          </label>
          <Input id="popover-name" size="medium" placeholder="프로젝트명을 입력하세요" />
          <div className="flex justify-end gap-2">
            <PopoverClose asChild>
              <Button variant="cancel" appearance="solid" size="sm">
                취소
              </Button>
            </PopoverClose>
            <PopoverClose asChild>
              <Button variant="primary" appearance="solid" size="sm">
                저장
              </Button>
            </PopoverClose>
          </div>
        </div>
      </PopoverContent>
    </Popover>
  )
}

function Aligned({ align }: { align: "start" | "center" | "end" }) {
  return (
    <Popover>
      <PopoverTrigger asChild>
        <Button variant="primary" appearance="outline" size="sm">
          {`align ${align}`}
        </Button>
      </PopoverTrigger>
      <PopoverContent align={align} side="bottom" aria-label={`정렬 예제: ${align}`}>
        <p>{`align="${align}"`}</p>
      </PopoverContent>
    </Popover>
  )
}

const meta = { title: "Components/Overlay/Popover", component: Popover, parameters: { layout: "centered" } } satisfies Meta<typeof Popover>
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
// (200px 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. The trigger keeps its
// own size (the wrapper div stretches, the inline-flex trigger does not). Overlays open in a portal, so this layout never affects them.
function SpecimenGrid({ states, columns = 4 }: { states: BoardState[]; columns?: 4 | 5 }) {
  return (
    <div className={`grid items-start gap-6 [grid-template-columns:repeat(auto-fill,minmax(min(100%,200px),1fr))] ${columns === 5 ? "min-[1000px]:grid-cols-5" : "min-[1000px]:grid-cols-4"}`}>
      {states.map((state) => (
        <StateBoard key={state.id} min={10000} states={[{ ...state, children: <div>{state.children}</div> }]} />
      ))}
    </div>
  )
}

// Representative Story: Overview is merged into Variants (Basic is its first item); each align trigger sits in its own column.
export const All: Story = {
  name: "Popover",
  parameters: { layout: "fullscreen", controls: { disable: true } },
  render: () => (
    <StoryPage>
      <StoryPageHeader title="Popover" />
      <StorySection title="Variants">
        <SpecimenGrid
          states={[
            { id: "basic", label: "Basic", children: <Info /> },
            { id: "align-start", label: "Align Start", children: <Aligned align="start" /> },
            { id: "align-center", label: "Align Center", children: <Aligned align="center" /> },
            { id: "align-end", label: "Align End", children: <Aligned align="end" /> },
          ]}
        />
      </StorySection>
      <StorySection title="Usage">
        <SpecimenGrid states={[{ id: "form", label: "Form", children: <FormPanel /> }]} />
      </StorySection>
    </StoryPage>
  ),
}

export const Open: Story = {
  tags: ["verification"],
  parameters: { layout: "fullscreen" },
  render: () => (
    <div className="flex min-h-[320px] justify-center p-8">
      <Info defaultOpen />
    </div>
  ),
}