export function asList(raw) {
  if (Array.isArray(raw)) return raw.filter((x) => x && typeof x === 'object')
  if (raw && typeof raw === 'object') {
    const nested = raw.records || raw.list || raw.items || raw.messages || raw.projects || raw.data
    if (Array.isArray(nested)) return nested.filter((x) => x && typeof x === 'object')
    return [raw]
  }
  return []
}

export function firstText(row, keys, fallback = '') {
  for (const k of keys) {
    const v = row && row[k]
    if (v != null && String(v).trim() && String(v) !== 'null') return String(v).trim()
  }
  return fallback
}

export function initial(name) {
  const s = String(name || '').trim()
  return s ? s.slice(0, 1) : '?'
}

export function maskPhone(phone) {
  const s = String(phone || '')
  if (s.length < 7) return s
  return s.slice(0, 3) + '****' + s.slice(-4)
}

function asDate(t) {
  if (t == null || t === '') return null
  let d
  const n = Number(t)
  if (!Number.isNaN(n) && String(t).length >= 10) {
    d = new Date(n < 1e12 ? n * 1000 : n)
  } else {
    d = new Date(t)
  }
  if (Number.isNaN(d.getTime())) return null
  return d
}

function dayStart(d) {
  return new Date(d.getFullYear(), d.getMonth(), d.getDate()).getTime()
}

function period(d) {
  const h = d.getHours()
  if (h < 6) return '凌晨'
  if (h < 12) return '上午'
  if (h < 13) return '中午'
  if (h < 18) return '下午'
  return '晚上'
}

function hm12(d) {
  const h = d.getHours() % 12 || 12
  const m = String(d.getMinutes()).padStart(2, '0')
  return `${h}:${m}`
}

export function fmtTime(t) {
  const d = asDate(t)
  if (!d) return t == null ? '' : String(t)
  const label = period(d) + hm12(d)
  const now = new Date()
  const diff = (dayStart(now) - dayStart(d)) / 86400000
  if (diff === 0) return label
  if (diff === 1) return '昨天 ' + label
  if (diff < 7) {
    const week = ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六']
    return week[d.getDay()] + ' ' + label
  }
  return `${d.getMonth() + 1}月${d.getDate()}日 ${label}`
}

export function fmtListTime(t) {
  const d = asDate(t)
  if (!d) return t == null ? '' : String(t)
  const now = new Date()
  const diff = (dayStart(now) - dayStart(d)) / 86400000
  if (diff === 0) return period(d) + hm12(d)
  if (diff === 1) return '昨天'
  if (diff < 7) {
    const week = ['星期日', '星期一', '星期二', '星期三', '星期四', '星期五', '星期六']
    return week[d.getDay()]
  }
  return `${d.getMonth() + 1}月${d.getDate()}日`
}

export function pad2(n) {
  return String(n).padStart(2, '0')
}

export function clockText(date) {
  const d = date || new Date()
  return `${pad2(d.getHours())}:${pad2(d.getMinutes())}:${pad2(d.getSeconds())}`
}

export function yuan(v) {
  const n = Number(v)
  if (Number.isNaN(n)) return ''
  return n.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
}

export function dmId(a, b) {
  const pair = [String(a), String(b)].sort()
  return `dm:${pair[0]}:${pair[1]}`
}

export function convType(s) {
  const t = String((s && s.type) || '')
  if (t === 'dm') return 'direct'
  if (t === 'group' || t === 'work' || t === 'files' || t === 'direct') return t
  const id = String((s && s.id) || '')
  if (id.startsWith('g:')) return 'group'
  if (id.startsWith('work:')) return 'work'
  if (id.startsWith('files:')) return 'files'
  return 'direct'
}

export function toast(title, icon = 'none') {
  uni.showToast({ title: String(title || ''), icon, duration: 2200 })
}