const { request } = require('../../utils/request')

const QUICK_TEXTS = [
  '大家好，今晚 8 点社区线上读书会，欢迎参加。',
  '恭喜中奖领取大额现金，点击链接立即到账。',
  '本周活动报名已开放，请在群里接龙。',
  '高薪兼职日结，扫码进群立刻赚钱。'
]

const VISIBILITY_OPTIONS = [
  { value: 'public', label: '公开信息发布' },
  { value: 'private', label: '私有信息发布' },
  { value: 'direct', label: '用户私信发布' }
]

Page({
  data: {
    text: '',
    loading: false,
    result: null,
    quickTexts: QUICK_TEXTS,
    visibilityOptions: VISIBILITY_OPTIONS,
    visibilityIndex: 0,
    visibility: 'public',
    recipientUsername: ''
  },

  formatPercent(value, digits = 2) {
    const num = Number(value || 0)
    return `${(num * 100).toFixed(digits)}%`
  },

  onInput(e) {
    const field = e.currentTarget.dataset.field
    this.setData({ [field]: e.detail.value || '' })
  },

  fillQuick(e) {
    this.setData({ text: e.currentTarget.dataset.text || '' })
  },

  onVisibilityChange(e) {
    const idx = Number(e.detail.value)
    const row = this.data.visibilityOptions[idx] || this.data.visibilityOptions[0]
    this.setData({ visibilityIndex: idx, visibility: row.value })
  },

  async publish() {
    if (this.data.loading) return
    const text = (this.data.text || '').trim()
    if (text.length < 2) {
      wx.showToast({ title: '请输入至少 2 个字符', icon: 'none' })
      return
    }

    const payload = {
      text,
      visibility: this.data.visibility
    }

    if (this.data.visibility === 'direct') {
      const receiver = (this.data.recipientUsername || '').trim()
      if (!receiver) {
        wx.showToast({ title: '私信请填写接收人用户名', icon: 'none' })
        return
      }
      payload.recipient_username = receiver
    }

    this.setData({ loading: true })
    try {
      const result = await request({
        url: '/content/publish',
        method: 'POST',
        data: payload
      })

      this.setData({
        result: {
          ...result,
          detect: {
            ...(result.detect || {}),
            confidence_text: this.formatPercent((result.detect || {}).confidence, 2)
          },
          post_threshold_text: this.formatPercent((result.post || {}).threshold, 1),
          detect_spam_probability_text: this.formatPercent((result.detect || {}).spam_probability, 2)
        }
      })

      wx.showToast({
        title: result.publish_allowed ? '发布成功' : '已拦截，可申诉',
        icon: result.publish_allowed ? 'success' : 'none'
      })
    } finally {
      this.setData({ loading: false })
    }
  },

  gotoHistory() {
    wx.navigateTo({ url: '/pages/history/index' })
  },

  showTokenWeight(e) {
    const token = e.currentTarget.dataset.token
    const weight = e.currentTarget.dataset.weight
    const weightNum = Number(weight || 0)
    const direction = weightNum >= 0 ? '倾向垃圾判定' : '倾向正常判定'
    wx.showModal({
      title: '关键词权重',
      content: `关键词"${token}"\n权重贡献：${weightNum >= 0 ? '+' : ''}${weightNum.toFixed(4)}\n(${direction})`,
      showCancel: false,
      confirmText: '关闭'
    })
  }
})