var React = require('react')
var Link = require('react-router').Link
var Icon = require('icon.jsx')

module.exports = function(){
  return React.createClass({
    getInitialState: function(){
      return { connected: false, error: false, long: false }
    },
    componentDidMount: function(){
      var boards = this.props.api
      if(boards){
        if(!this.isMounted()) return
        if(boards.isInit){
          this.setState({ connected: true })
        } else {
          setTimeout(_ => {
            if(this.isMounted()) this.setState({ long: true })
          }, 5000)
          boards.getEventEmitter().on('init', err => {
            if(!this.isMounted()) return
            if(err){
              this.setState({ error: true })
            } else {
              this.setState({ connected: true })
            }
          })
        }
      }
    },
    render: function(){
      var opt = require('options.jsx').get()
      if(this.state.error){
        return (
        <div className="">
          <h1><Icon name="ban"/> Connection to IPFS not available</h1>
          <h4 className="light">Sorry, but at the moment an external application is needed to try the Prototype</h4>
          <p>You don't have an IPFS node running at <code>{opt.addr}:{opt.port}</code> or it is not reachable.
          The IPFS Boards prototype requires a full IPFS node. Please start one by following the
          <a href="https://github.com/ipfs/go-ipfs"><code>go-ipfs</code> documentation.</a></p>
          <h5>Do you have a running node but the app won't work?</h5>
          <p>It's probably one of these issues:</p>
          <ul>
            <li>Your node is not located at <code>{opt.addr}:{opt.port}</code>. Go to the <Link to="/settings">Settings Page</Link> to configure the connection.</li>
            <li>You edited your settings and saved them but didn't reload the page</li>
            <li>Your IPFS node doesn't allow requests from the domain you're running the app from (CORS issue). See <a href="https://github.com/fazo96/ipfs-board/blob/master/ipfs_daemon_set_cors.sh">here</a> for the fix.</li>
            <li>You're downloading the app via `https`: at the moment, connecting to IPFS only works if you donwload the app via plain HTTP. If you're using `ipfs.io` please consider accessing the app via a local gateway like `localhost:8080`</li>
            <li>Some other networking or browser security issue is preventing the App from talking to your node.</li>
          </ul>
          <p>Still can't fix it? <a href="https://github.com/fazo96/ipfs-board/issues">File a issue on GitHub</a>, we'll be happy to help!</p>
        </div>
      )} else if(this.state.connected){
        return <div class="text-center">
          <h1><Icon name="check" /></h1>
          <h5 class="light">You're connected!</h5>
        </div>
      } else {
        return <div className="center-block text-center">
          <Icon name="refresh" className="fa-3x center-block light fa-spin" />
          <h4>Connecting to IPFS</h4>
          {this.state.long?(<p>It's taking long... there's probably something wrong</p>):<p></p>}
        </div>
      }
    }
  })
}