const app = getApp()

Page({
  data: {
    url: '',
    title: '链接预览',
    statusBarHeight: 44,
    navBarHeight: 88,
  },

  onLoad(options) {
    const url = decodeURIComponent(options.url || '')
    const title = options.title ? decodeURIComponent(options.title) : '链接预览'
    this.setData({
      url,
      title,
      statusBarHeight: app.globalData.statusBarHeight || 44,
      navBarHeight: app.globalData.navBarHeight || 88,
    })
  },

  goBack() {
    const pages = getCurrentPages()
    if (pages.length > 1) {
      wx.navigateBack()
    } else {
      wx.switchTab({ url: '/pages/index/index' })
    }
  },

  copyLink() {
    const url = (this.data.url || '').trim()
    if (!url) {
      wx.showToast({ title: '暂无可复制链接', icon: 'none' })
      return
    }
    wx.setClipboardData({
      data: url,
      success: () => wx.showToast({ title: '链接已复制', icon: 'none' }),
    })
  },
})