/**
 * @author oldj
 * @blog http://oldj.net
 */

'use strict'

import React from 'react'
import Panel from './panel/panel'
import Content from './content/content'
import SudoPrompt from './frame/sudo'
import EditPrompt from './frame/edit'
import PreferencesPrompt from './frame/preferences'
import util from '../libs/util'
import './app.less'

class App extends React.Component {
  constructor (props) {
    super(props)

    let _data = SH_Agent.getHosts()

    this.state = {
      hosts: _data,
      current: _data.sys
    }

    SH_event.on('after_apply', () => {
      if (this.state.current.is_sys) {
        // 重新读取
        this.setState({
          current: SH_Agent.getSysHosts()
        })
      }
    })

    ipcRenderer.on('to_import', (e, fn) => {
      if (!confirm(SH_Agent.lang.confirm_import)) return

      SH_Agent.readFile(fn, (err, cnt) => {
        if (err) {
          alert(err.message || 'Import Error!')
          return
        }
        let data
        try {
          data = JSON.parse(cnt)
        } catch (e) {
          console.log(e)
          alert(
            e.message || 'Bad format, the import file should be a JSON file.')
          return
        }

        if (!data.list || !Array.isArray(data.list)) {
          alert('Bad format, the data JSON should have a [list] field.')
          return
        }

        data.list.map(item => {
          if (!item.id) {
            item.id = util.makeId()
          }
        })

        this.setState({
          hosts: Object.assign({}, this.state.hosts, {list: data.list})
        }, () => {
          SH_event.emit('imported')
        })
        console.log('imported.')
      })
    })

    ipcRenderer.send('reg_renderer')
  }

  setCurrent (host) {
    this.setState({
      current: host.is_sys ? SH_Agent.getSysHosts() : host
    })
  }

  static isReadOnly (host) {
    return host.is_sys || host.where === 'remote'
  }

  toSave () {
    clearTimeout(this._t)

    this._t = setTimeout(() => {
      SH_event.emit('change')
    }, 1000)
  }

  setHostContent (v) {
    if (this.state.current.content === v) return // not changed

    this.state.current.content = v || ''
    this.toSave()
  }

  componentDidMount () {
    window.addEventListener('keydown', (e) => {
      if (e.keyCode === 27) {
        SH_event.emit('esc')
      }
    }, false)
  }

  render () {
    let current = this.state.current
    return (
      <div id="app" className={'platform-' + platform}>
        <Panel hosts={this.state.hosts} current={current}
               setCurrent={this.setCurrent.bind(this)}/>
        <Content current={current} readonly={App.isReadOnly(current)}
                 setHostContent={this.setHostContent.bind(this)}/>
        <div className="frames">
          <SudoPrompt/>
          <EditPrompt hosts={this.state.hosts}/>
          <PreferencesPrompt/>
        </div>
      </div>
    )
  }
}

export default App