import AlertVue from './src/alert.vue'

let instance

let Alert = {
  install(Vue) {
    Vue.prototype.$alert = function (opts) {
      let defaultOpts = {
        title: '',
        text: '',
        button: '确定'
      }

      if (!instance) {
        instance = new AlertVue({
          el: document.createElement('div')
        })
      }

      if (opts.close) {
        Vue.nextTick(() => {
          instance.show = false
        })
        return
      }

      // let options = Object.assign(defaultOpts, opts)
      // Object.assign(instance, options)

      for(var key in opts){
        if(opts.hasOwnProperty(key) === true){
          defaultOpts[key]=opts[key];
        }
      }
      var options = defaultOpts

      for(var key in options){
        if(options.hasOwnProperty(key) === true){
          instance[key]=options[key];
        }
      }

      document.body.appendChild(instance.$el)

      Vue.nextTick(() => {
        instance.show = true
      })
    }
  }
}

export default Alert