// TEMPORARY debug page for on-device verification (region↔IO mapping, color byte
// order, scan wave bucketing, PD polarity). Guoguo-only tooling — intentionally
// NOT i18n'd; remove this page before any release build.
var ble = require('../../services/ble')
var protocol = require('../../services/ble/protocol')

var WAVES = [
  { key: 'red', code: 2, label: '红光' },
  { key: 'ir', code: 1, label: '红外' },
  { key: 'uv', code: 3, label: '紫外' },
  { key: 'yellow', code: 4, label: '暖黄' }
]
var REGION_LABELS = { 1: '右区/IO1', 2: '左区/IO2', 4: '上区/IO3', 8: '中区/IO4', 16: '下区/IO5' }
var RUN_STATES = { 0: 'IDLE', 1: '检测', 2: '治疗', 255: '故障(0xFF)' }

function hex(bytes) {
  return bytes.map(function (b) { return ('0' + b.toString(16)).slice(-2).toUpperCase() }).join(' ')
}

Page({
  data: {
    statusBarHeight: 44,
    connected: false,
    waves: WAVES,
    selectedWave: 'red',
    // live FFE4 status
    pd: [], vbat: 0, battery: 0, fitting: -1, scanWave: '-', runState: '-', frames: 0,
    logs: []
  },

  onLoad: function () {
    this.setData({ statusBarHeight: getApp().globalData.statusBarHeight })
  },

  onShow: function () {
    var self = this
    self.setData({ connected: ble.isConnected() })
    self._onAdc = function (d) {
      self.setData({
        pd: d.pd || [],
        vbat: d.vbat || 0,
        battery: d.battery || 0,
        fitting: d.fitting,
        scanWave: d.scan_wave || '-',
        runState: RUN_STATES[d.run_state] !== undefined ? RUN_STATES[d.run_state] : String(d.run_state),
        frames: self.data.frames + 1
      })
    }
    ble.on('adc', self._onAdc)
  },

  onHide: function () { this._cleanup() },
  onUnload: function () { this._cleanup() },
  _cleanup: function () {
    if (this._onAdc) { ble.off('adc', this._onAdc); this._onAdc = null }
  },

  onBack: function () {
    wx.navigateBack({ fail: function () { wx.switchTab({ url: '/pages/profile/profile' }) } })
  },

  _log: function (msg) {
    var logs = this.data.logs
    logs.unshift(new Date().toTimeString().slice(0, 8) + '  ' + msg)
    if (logs.length > 20) logs.pop()
    this.setData({ logs: logs })
  },

  _send: function (label, options) {
    var self = this
    if (!ble.isConnected()) {
      self.setData({ connected: false })
      wx.showToast({ title: '设备未连接', icon: 'none' })
      return
    }
    var bytes = protocol.buildVendorCommand(options)
    self._log(label)
    self._log('→ ' + hex(bytes))
    ble.setParams(options).then(function () {
      self._log('✓ 写入成功')
    }).catch(function (err) {
      self._log('✗ 写入失败: ' + ((err && err.msg) || JSON.stringify(err)))
    })
  },

  onSelectWave: function (e) {
    this.setData({ selectedWave: e.currentTarget.dataset.key })
  },

  _waveCode: function () {
    var key = this.data.selectedWave
    for (var i = 0; i < WAVES.length; i++) if (WAVES[i].key === key) return WAVES[i].code
    return 2
  },

  // 点脸型图分区：该区 2 秒治疗（验证物理位置对不对）
  onTapRegion: function (e) {
    var mask = parseInt(e.currentTarget.dataset.mask)
    this._send('治疗 2s ' + REGION_LABELS[mask] + ' ' + this.data.selectedWave, {
      region_mask: mask, wavelength: this._waveCode(), brightness: 204,
      hold_time: 2, control: 0x02
    })
  },

  // 检测指令（与 auto-scan 同参：红光 128 全脸，设备自跑序贯扫描）
  onScanCmd: function () {
    this._send('检测指令 control=0x01', {
      region_mask: 0x1F, wavelength: 2, brightness: 128,
      hold_time: 0, control: 0x01
    })
  },

  // 全脸当前波长 2 秒
  onTreatAll: function () {
    this._send('治疗 2s 全脸 ' + this.data.selectedWave, {
      region_mask: 0x1F, wavelength: this._waveCode(), brightness: 204,
      hold_time: 2, control: 0x02
    })
  },

  // 停止 / IDLE
  onStop: function () {
    var self = this
    self._log('停止 → IDLE 全零帧')
    ble.stopTreatment().then(function () { self._log('✓ 已停止') })
      .catch(function (err) { self._log('✗ 停止失败: ' + ((err && err.msg) || '')) })
  },

  onClearLog: function () { this.setData({ logs: [], frames: 0 }) }
})