(function () {
  const DEFAULT_UI_MODE = 'debug'
  const AUTO_CLOSE_SEC_DEBUG = 3
  const AUTO_CLOSE_SEC_NORMAL = 2

  function readUiMode() {
    try {
      const v = localStorage.getItem('mp_ta_ui_mode')
      if (v === 'debug' || v === 'normal') return v
    } catch {}
    return DEFAULT_UI_MODE
  }

  function setUiMode(mode) {
    try { localStorage.setItem('mp_ta_ui_mode', mode) } catch {}
  }

  function escapeHtml(s) {
    if (s === null || s === undefined) return ''
    return String(s)
      .replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;')
      .replace(/"/g, '&quot;').replace(/'/g, '&#39;')
  }

  function showToast(text, type, duration) {
    type = type || 'info'
    duration = duration || (type === 'error' ? 3000 : 2000)
    const colors = {
      info: { bg: 'rgba(56, 103, 214, 0.92)', border: 'rgba(108, 122, 224, 0.6)', color: '#fff' },
      success: { bg: 'rgba(0, 180, 140, 0.92)', border: 'rgba(0, 216, 167, 0.6)', color: '#fff' },
      error: { bg: 'rgba(220, 53, 69, 0.92)', border: 'rgba(255, 80, 100, 0.6)', color: '#fff' },
      warn: { bg: 'rgba(230, 152, 20, 0.92)', border: 'rgba(255, 193, 7, 0.6)', color: '#fff' }
    }
    const c = colors[type] || colors.info
    const t = document.createElement('div')
    t.textContent = text
    Object.assign(t.style, {
      position: 'fixed', zIndex: 99998, top: '28px', left: '50%', transform: 'translateX(-50%)',
      padding: '10px 18px', borderRadius: '12px', fontSize: '14px', fontWeight: 500,
      maxWidth: '90vw', textAlign: 'center', backdropFilter: 'blur(8px)',
      background: c.bg, border: '1px solid ' + c.border, color: c.color,
      boxShadow: '0 10px 30px rgba(0,0,0,0.35)'
    })
    document.body.appendChild(t)
    setTimeout(() => {
      t.style.transition = 'opacity 0.3s ease, transform 0.3s ease'
      t.style.opacity = '0'
      t.style.transform = 'translateX(-50%) translateY(-10px)'
      setTimeout(() => t.remove(), 320)
    }, duration)
  }

  function confirmDialog(options, onOk, onCancel) {
    options = options || {}
    const title = options.title || '请确认操作'
    const desc = options.desc || ''
    const okText = options.okText || '确认'
    const cancelText = options.cancelText || '取消'
    const danger = options.danger === true
    const slot = document.getElementById('modal-slot') || document.body
    const mask = document.createElement('div')
    mask.className = 'modal-mask'
    mask.innerHTML =
      '<div class="modal-card">' +
        '<div class="modal-title' + (danger ? ' danger' : '') + '">' + escapeHtml(title) + '</div>' +
        '<div class="modal-desc">' + escapeHtml(desc) + '</div>' +
        '<div class="modal-actions">' +
          '<button type="button" class="btn secondary btn-sm" data-act="cancel">' + escapeHtml(cancelText) + '</button>' +
          '<button type="button" class="btn ' + (danger ? 'danger' : 'primary') + ' btn-sm" data-act="ok">' + escapeHtml(okText) + '</button>' +
        '</div>' +
      '</div>'
    slot.appendChild(mask)
    const close = (result) => {
      mask.remove()
      if (result && typeof onOk === 'function') onOk()
      if (!result && typeof onCancel === 'function') onCancel()
    }
    mask.addEventListener('click', (e) => {
      if (e.target === mask) close(false)
      const act = e.target.getAttribute && e.target.getAttribute('data-act')
      if (act === 'ok') close(true)
      if (act === 'cancel') close(false)
    })
    const okBtn = mask.querySelector('[data-act="ok"]')
    if (okBtn) okBtn.focus()
    return { close }
  }

  function runTrackedInteraction(options, runner) {
    const uiMode = readUiMode()
    options = options || {}
    const name = options.name || '操作'
    const toastOnSuccess = options.toastOnSuccess !== false
    const normalViewAsToast = options.normalViewAsToast !== false
    const debugMode = uiMode === 'debug'
    const dlg = document.getElementById('interaction-dialog') || (() => {
      const d = document.createElement('div')
      d.id = 'interaction-dialog'
      d.className = 'interaction-dialog hidden'
      document.body.appendChild(d)
      return d
    })()

    const startedAt = Date.now()
    const logs = []
    let timer = null
    let forceStay = false

    const fmtTime = (ts) => {
      const d = new Date(ts)
      const p = (n) => (n < 10 ? '0' + n : '' + n)
      return `${d.getFullYear()}-${p(d.getMonth()+1)}-${p(d.getDate())} ${p(d.getHours())}:${p(d.getMinutes())}:${p(d.getSeconds())}`
    }

    const push = (line) => logs.push(`[${fmtTime(Date.now())}] ${line}`)

    const render = () => {
      const elapsedSec = ((Date.now() - startedAt) / 1000).toFixed(1)
      dlg.innerHTML =
        '<div class="id-title">' +
          '<span>' + escapeHtml(name) + ' · 交互详情</span>' +
          '<span style="cursor:pointer;color:#8a8aa8;" data-act="copy">复制</span>' +
        '</div>' +
        '<div class="id-body">' + escapeHtml(logs.join('\n') + (timer ? `\n\n倒计时关闭：${remainSec}s` : '') + `\n\n耗时：${elapsedSec}s`) + '</div>' +
        '<div class="id-actions">' +
          '<span class="id-countdown">' + (timer ? `自动关闭中：${remainSec}s` : (forceStay ? '已停留，有错误/异常' : '已完成')) + '</span>' +
          '<div style="display:flex;gap:8px;">' +
            (timer ? '<button type="button" class="btn ghost btn-sm" data-act="stay">停留</button>' : '') +
            '<button type="button" class="btn secondary btn-sm" data-act="close">关闭</button>' +
          '</div>' +
        '</div>'
      const btnCopy = dlg.querySelector('[data-act="copy"]')
      if (btnCopy) btnCopy.onclick = () => {
        try {
          const txt = logs.join('\n') + `\n\n耗时：${elapsedSec}s`
          if (navigator.clipboard && navigator.clipboard.writeText) {
            navigator.clipboard.writeText(txt).then(() => showToast('日志已复制', 'success', 1200))
          } else {
            const ta = document.createElement('textarea')
            ta.value = txt; document.body.appendChild(ta); ta.select(); document.execCommand('copy'); ta.remove()
            showToast('日志已复制', 'success', 1200)
          }
        } catch (e) { showToast('复制失败：' + e.message, 'error', 2000) }
      }
      const btnStay = dlg.querySelector('[data-act="stay"]')
      if (btnStay) btnStay.onclick = () => { if (timer) { clearInterval(timer); timer = null; forceStay = true; render() } }
      const btnClose = dlg.querySelector('[data-act="close"]')
      if (btnClose) btnClose.onclick = () => { dlg.classList.add('hidden'); if (timer) clearInterval(timer); timer = null }
    }

    const showDlg = () => { dlg.classList.remove('hidden'); render() }
    const closeDlg = () => { dlg.classList.add('hidden'); if (timer) { clearInterval(timer); timer = null } }

    let remainSec = debugMode ? AUTO_CLOSE_SEC_DEBUG : AUTO_CLOSE_SEC_NORMAL

    const startCountdown = () => {
      if (forceStay) return
      timer = setInterval(() => {
        remainSec -= 1
        if (remainSec <= 0) { closeDlg() }
        else { render() }
      }, 1000)
    }

    push(`开始：${name}`)
    push(`HTTP: ${options.method || 'GET'} ${options.path || options.url || '(本地)'}${options.params ? `\n参数：${JSON.stringify(options.params)}` : ''}`)
    showDlg()

    const runnerPromise = typeof runner === 'function' ? runner() : Promise.resolve(runner || { ok: true })
    return Promise.resolve(runnerPromise).then((res) => {
      push(`返回：${JSON.stringify(res, null, 2).slice(0, 2000)}`)
      push(`状态：成功 ✔ 耗时 ${((Date.now()-startedAt)/1000).toFixed(2)}s`)
      render()
      if (debugMode) { startCountdown() }
      else if (normalViewAsToast && toastOnSuccess) { setTimeout(() => closeDlg(), 120); showToast(`${name}成功`, 'success') }
      else { startCountdown() }
      return res
    }).catch((e) => {
      forceStay = true
      push(`错误：${e && e.message ? e.message : String(e)}`)
      push(`状态：失败 ✘ 耗时 ${((Date.now()-startedAt)/1000).toFixed(2)}s`)
      render()
      showToast(`${name}失败：${(e && e.message) ? e.message : '未知错误'}`, 'error', 3500)
      throw e
    })
  }

  function formatTime(iso) {
    if (!iso) return ''
    const d = new Date(iso)
    if (isNaN(d.getTime())) return String(iso)
    const p = (n) => (n < 10 ? '0' + n : '' + n)
    const now = new Date()
    const sameYear = d.getFullYear() === now.getFullYear()
    const y = sameYear ? '' : d.getFullYear() + '-'
    return `${y}${p(d.getMonth()+1)}-${p(d.getDate())} ${p(d.getHours())}:${p(d.getMinutes())}`
  }

  function humanSize(bytes) {
    const n = Number(bytes || 0)
    if (n < 1024) return n + ' B'
    if (n < 1024 * 1024) return (n / 1024).toFixed(1) + ' KB'
    return (n / 1024 / 1024).toFixed(2) + ' MB'
  }

  window.__MPTA_DIALOG__ = {
    readUiMode, setUiMode,
    escapeHtml, showToast, confirmDialog, runTrackedInteraction,
    formatTime, humanSize,
    AUTO_CLOSE_SEC_DEBUG, AUTO_CLOSE_SEC_NORMAL
  }
})()