const media = require('./media')

function openMap(activity) {
  if (!activity || activity.latitude == null || activity.longitude == null) {
    wx.showToast({ title: '暂无会场坐标', icon: 'none' })
    return
  }
  wx.openLocation({
    latitude: Number(activity.latitude),
    longitude: Number(activity.longitude),
    name: activity.title,
    address: activity.address,
    scale: 16
  })
}

function goSignup(activity) {
  if (!activity || !activity.id) return
  wx.navigateTo({ url: '/pages/signup/signup?id=' + activity.id })
}

// Shared links always land on the detail page and carry the sharer's openid for attribution.
function shareMessage(activity, fallbackId) {
  const item = activity || {}
  const openid = wx.getStorageSync('openid') || ''
  const cover = item.poster || item.cover
  const message = {
    title: item.title || '卓米会',
    path: '/pages/detail/detail?id=' + (item.id || fallbackId || '') + '&sharer=' + openid
  }
  if (cover) message.imageUrl = media.absUrl(cover)
  return message
}

function toast(error) {
  wx.showToast({ title: (error && error.message) || '操作失败', icon: 'none' })
}

module.exports = {
  openMap: openMap,
  goSignup: goSignup,
  shareMessage: shareMessage,
  toast: toast
}