var searchInputStyle = {
    width: '400px',
    display: 'block',
    marginBottom: '48px',
    marginLeft: 'auto',
    marginRight: 'auto'
  },
  fetchResultsStyle = {
    color: '#888',
    textAlign: 'center',
    fontSize: '1.2em'
  };

var SearchActive = React.createClass({
  render: function() {
    return (
      <section style={fetchResultsStyle}>
        Looking up the Dewey Decimals
        <span className="busy-indicator"></span>
      </section>
    );
  }
});

var searchNoResultsStyle = {
  textAlign: 'center'
}, searchNoResultsMessageStyle = {
  fontStyle: 'italic',
  marginRight: '5px'
};

var SearchNoResults = React.createClass({
  render: function() {
    return (
      <section style={searchNoResultsStyle}>
        <span style={searchNoResultsMessageStyle}>No one has checked anything in for {this.props.query} yet.</span>
        <Link label="Be the first" href="javascript:alert('aww I do nothing')" />
      </section>
    );
  }
});

var SearchResults = React.createClass({
  render: function() {
    var rows = [];
    console.log('results');
    console.log('made it here');
    this.props.results.forEach(function(result) {
      rows.push(
        <SearchResultRow name={result.name} title={result.stream_name} imgUrl={result.thumbnail}
                         description={result.description} cost_est={result.cost_est} />
      );
    });
    console.log(this.props.results);
    console.log(rows);
    console.log('done');
    return (
      <section>{rows}</section>
    );
  }
});

var searchRowImgStyle = {
    maxHeight: '100px',
    display: 'block',
    marginLeft: 'auto',
    marginRight: 'auto',
    float: 'left'
  },
  searchRowCostStyle = {
    float: 'right',
    marginLeft: '20px',
    marginTop: '5px',
    display: 'inline-block'
  },
  searchRowNameStyle = {
    fontSize: '0.9em',
    color: '#666',
    marginBottom: '24px',
    clear: 'both'
  },
  searchRowDescriptionStyle = {
    color : '#444',
    marginBottom: '24px',
    fontSize: '0.9em'
  };


var SearchResultRow = React.createClass({
  getInitialState: function() {
    return {
      downloading: false
    }
  },
  startDownload: function() {
    if (!this.state.downloading) {
      this.setState({
        downloading: true
      });
      lbry.getStream(this.props.name, (streamInfo) => {
        alert('Downloading ' + this.props.title + ' to ' + streamInfo.path);
      });
    }
  },
  render: function() {
    var displayURI = 'lbry://' + this.props.name;

    // No support for lbry:// URLs in Windows or on Chrome yet
    if (/windows|win32/i.test(navigator.userAgent) || (window.chrome && window.navigator.vendor == "Google Inc.")) {
      var linkURI = "/?watch=" + this.props.name;
    } else {
      var linkURI = displayURI;
    }

    return (
      <div className="row-fluid">
        <div className="span3">
          <img src={this.props.imgUrl} alt={'Photo for ' + (this.props.title || this.props.name)} style={searchRowImgStyle} />
        </div>
        <div className="span9">
          <span style={searchRowCostStyle}>
            <CreditAmount amount={this.props.cost_est} isEstimate={true}/>
          </span>
          <h2>{this.props.title}</h2>
          <div style={searchRowNameStyle}>{displayURI}</div>
          <p style={searchRowDescriptionStyle}>{this.props.description}</p>
          <div>
            <Link href={linkURI} label="Watch" icon="icon-play" button="primary" />
            <Link onClick={this.startDownload} label={this.state.downloading ? "Downloading" : "Download"}
                  disabled={this.state.downloading} icon="icon-download" button="alt" />
          </div>
        </div>
      </div>
    );
  }
});


var discoverMainStyle = {
  color: '#333'
};

var Discover = React.createClass({
  userTypingTimer: null,

  getInitialState: function() {
    return {
      results: [],
      searching: false,
      query: ''
    };
  },

  search: function() {
    if (this.state.query)
    {
      console.log('search');
      lbry.search(this.state.query, this.searchCallback.bind(this, this.state.query));
    }
    else
    {
      this.setState({
        searching: false,
        results: []
      });
    }
  },

  searchCallback: function(originalQuery, results) {
    if (this.state.searching) //could have canceled while results were pending, in which case nothing to do
    {
      this.setState({
        results: results,
        searching: this.state.query != originalQuery, //multiple searches can be out, we're only done if we receive one we actually care about
      });
    }
  },

  onQueryChange: function(event) {
    if (this.userTypingTimer)
    {
      clearTimeout(this.userTypingTimer);
    }

    //@TODO: Switch to React.js timing
    this.userTypingTimer = setTimeout(this.search, 800); // 800ms delay, tweak for faster/slower

    this.setState({
      searching: event.target.value.length > 0,
      query: event.target.value
    });
  },

  render: function() {
    console.log(this.state);
    return (
      <main style={discoverMainStyle}>
        <section><input type="search" style={searchInputStyle} onChange={this.onQueryChange}
                        placeholder="Find movies, music, games, and more"/></section>
        { this.state.searching ? <SearchActive /> : null }
        { !this.state.searching && this.state.results.length ? <SearchResults results={this.state.results} /> : null }
        { !this.state.searching && !this.state.results.length && this.state.query ? <SearchNoResults query={this.state.query} /> : null }
      </main>
    );
  }
});

var logoStyle = {
    padding: '48px 12px',
    textAlign: 'center',
    maxHeight: '80px',
  },
  imgStyle = { //@TODO: remove this, img should be properly scaled once size is settled
    height: '80px'
  };

var Header = React.createClass({
  render: function() {
    return (
      <header>
        <TopBar />
        <div style={logoStyle}>
          <img src="./img/lbry-dark-1600x528.png" style={imgStyle}/>
        </div>
      </header>
    );
  }
});

var topBarStyle = {
  'float': 'right'
},
balanceStyle = {
  'marginRight': '5px'
},
closeIconStyle = {
  'color': '#ff5155'
};

var TopBar = React.createClass({
  onClose: function() {
    window.location.href = "?start";
  },
  getInitialState: function() {
    return {
      balance: 0,
      showClose: /linux/i.test(navigator.userAgent) // @TODO: find a way to use getVersionInfo() here without messy state management
    };
  },
  componentDidMount: function() {
    lbry.getBalance(function(balance) {
      this.setState({
        balance: balance
      });
    }.bind(this));
  },

  render: function() {
    return (
      <span className='top-bar' style={topBarStyle}>
        <span style={balanceStyle}>
          <CreditAmount amount={this.state.balance}/>
        </span>
        <Link href='/?files' title="My Files" icon='icon-cloud-download' />
        { ' ' }
        <Link href='/?settings' title="Settings" icon='icon-gear' />
        { ' ' }
        <Link href='/?help' title="Help" icon='icon-question-circle' />
        { ' ' }
        <Link href="/?start" title="Start" onClick={this.onClose} icon="icon-close"
              style={closeIconStyle} hidden={!this.state.showClose} />
      </span>
    );
  }
});

var HomePage = React.createClass({
  componentDidMount: function() {
    lbry.getStartNotice(function(notice) {
      if (notice) {
        alert(notice);
      }
    });
  },
  render: function() {
    return (
      <div>
        <Header />
        <Discover />
      </div>
    );
  }
});