Retro Board

'use client'

import { useState } from 'react'
import './retro-board.css'

export interface RetroNote { id: string; col: string; text: string; votes: number }

export interface RetroBoardProps {
  notes: RetroNote[]
  votes?: number
  fill?: 'dark' | 'light'
  className?: string
}

const COLS = [['well', 'Went well'], ['improve', 'To improve'], ['action', 'Actions']] as const

/** Tabbed retro with dot voting. */
export function RetroBoard({ notes: n0, votes = 5, fill = 'dark', className }: RetroBoardProps) {
  const [notes, setNotes] = useState(n0)
  const [tab, setTab] = useState<string>('well')
  const [mine, setMine] = useState<Set<string>>(new Set())
  const [draft, setDraft] = useState('')
  const left = votes - mine.size
  const list = notes.filter((n) => n.col === tab).sort((a, b) => b.votes + (mine.has(b.id) ? 1 : 0) - (a.votes + (mine.has(a.id) ? 1 : 0)))
  const vote = (id: string) => setMine((s) => { const x = new Set(s); x.has(id) ? x.delete(id) : x.size < votes && x.add(id); return x })
  return (
    <div className={['sd-rtr', className].filter(Boolean).join(' ')} data-fill={fill}>
      <div className="sd-rtr__tabs" role="tablist">{COLS.map(([id, l]) => <button key={id} type="button" role="tab" aria-selected={tab === id} onClick={() => setTab(id)}>{l}<small>{notes.filter((n) => n.col === id).length}</small></button>)}</div>
      <div className="sd-rtr__v" aria-live="polite">{Array.from({ length: votes }, (_, i) => <i key={i} data-used={i >= left || undefined} />)}<span>{left} {left === 1 ? 'vote' : 'votes'} left</span></div>
      <ul role="tabpanel">{list.map((n) => { const v = n.votes + (mine.has(n.id) ? 1 : 0); return (
        <li key={n.id}><div><p>{n.text}</p>{tab === 'improve' && <small><button type="button" onClick={() => { setNotes(notes.concat({ id: `${n.id}-a`, col: 'action', text: `Fix: ${n.text}`, votes: 0 })); setTab('action') }} disabled={notes.some((x) => x.id === `${n.id}-a`)}>{notes.some((x) => x.id === `${n.id}-a`) ? 'Action added' : 'Make an action'}</button></small>}</div>
          <button type="button" className="sd-rtr__dot" aria-pressed={mine.has(n.id)} aria-label={`Vote for ${n.text}, ${v} votes`} disabled={!mine.has(n.id) && left === 0} onClick={() => vote(n.id)}><i />{v}</button></li>
      ) })}</ul>
      <form onSubmit={(e) => { e.preventDefault(); const t = draft.trim(); if (!t) return; setNotes([...notes, { id: `n${notes.length}-${Date.now()}`, col: tab, text: t, votes: 0 }]); setDraft('') }}><input aria-label="New note" placeholder={`Add to ${COLS.find((c) => c[0] === tab)![1].toLowerCase()}`} value={draft} onChange={(e) => setDraft(e.target.value)} /><button type="submit" disabled={!draft.trim()}>Add</button></form>
    </div>
  )
}

.sd-rtr { --bg: #1c1c1c; --fg: #f6f6f6; --mute: #8e8e8e; --line: rgb(255 255 255 / 0.1); --soft: rgb(255 255 255 / 0.07); --strong: #fafafa; --on: #111; 
  color: var(--fg); font-size: 14px; line-height: 1.4; -webkit-tap-highlight-color: transparent; }
.sd-rtr[data-fill='light'] { --bg: #fff; --fg: #121212; --mute: #6f6f6f; --line: rgb(0 0 0 / 0.09); --soft: rgb(0 0 0 / 0.05); --strong: #111; --on: #fff; }
.sd-rtr :where(button) { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.sd-rtr :focus-visible { outline: 2px solid var(--fg); outline-offset: 2px; }
.sd-rtr .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.sd-rtr { width: min(100%, 340px); padding: 14px; grid-template-columns: minmax(0, 1fr); border-radius: 18px; background: var(--bg); box-shadow: inset 0 0 0 1px var(--line); display: grid; gap: 10px; }
.sd-rtr__tabs { display: flex; gap: 2px; padding: 2px; border-radius: 10px; background: var(--soft); }
.sd-rtr__tabs button { flex: 1; height: 32px; border-radius: 8px; font-size: 12px; color: var(--mute) !important; }
.sd-rtr__tabs button[aria-selected='true'] { background: var(--bg) !important; color: var(--fg) !important; box-shadow: inset 0 0 0 1px var(--line); }
.sd-rtr__tabs small { margin-left: 4px; font-variant-numeric: tabular-nums; }
.sd-rtr__v { display: flex; align-items: center; gap: 4px; font-size: 12px; color: var(--mute); }
.sd-rtr__v i { width: 9px; height: 9px; border-radius: 50%; background: var(--fg); }
.sd-rtr__v i[data-used] { background: none; box-shadow: inset 0 0 0 1.5px var(--line); }
.sd-rtr__v span { margin-left: auto; }
.sd-rtr ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; min-height: 150px; align-content: start; }
.sd-rtr li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: start; padding: 10px; border-radius: 12px; background: var(--soft); font-size: 13px; animation: sd-rtr-in 220ms ease-out; }
@keyframes sd-rtr-in { from { transform: translateY(6px); opacity: 0; } }
.sd-rtr li p { margin: 0; }
.sd-rtr li small { display: block; margin-top: 4px; }
.sd-rtr li small button { font-size: 11.5px; color: var(--mute) !important; text-decoration: underline; text-underline-offset: 2px; }
.sd-rtr__dot { display: flex; align-items: center; gap: 5px; height: 28px; padding: 0 9px; border-radius: 99px; background: var(--bg) !important; box-shadow: inset 0 0 0 1px var(--line); font-size: 12px; font-weight: 600; font-variant-numeric: tabular-nums; }
.sd-rtr__dot i { width: 7px; height: 7px; border-radius: 50%; box-shadow: inset 0 0 0 1.5px var(--fg); }
.sd-rtr__dot[aria-pressed='true'] { background: var(--strong) !important; color: var(--on) !important; box-shadow: none; }
.sd-rtr__dot[aria-pressed='true'] i { background: var(--on); box-shadow: none; }
.sd-rtr__dot:disabled { opacity: 0.4; }
.sd-rtr form { display: flex; gap: 6px; }
.sd-rtr form input { flex: 1; min-width: 0; height: 38px; padding: 0 10px; border-radius: 10px; border: 0; background: var(--soft); color: var(--fg); font: 15px ui-sans-serif, system-ui; outline: 0; }
.sd-rtr form input:focus { box-shadow: inset 0 0 0 1.5px var(--fg); }
.sd-rtr form button { padding: 0 14px; border-radius: 10px; font-size: 13px; font-weight: 600; background: var(--strong) !important; color: var(--on) !important; }
.sd-rtr form button:disabled { opacity: 0.4; }
@media (prefers-reduced-motion: reduce) { .sd-rtr *, .sd-rtr *::before, .sd-rtr *::after { animation: none !important; transition: none !important; } }