import React from 'react';
import lbry from 'lbry.js';
import lbryuri from 'lbryuri.js';
import Link from 'component/link';
import {FormField} from 'component/form.js';
import FileTile from 'component/fileTile';
import rewards from 'rewards.js';
import lbryio from 'lbryio.js';
import {BusyMessage, Thumbnail} from 'component/common.js';

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

    this.state = {
      sortBy: 'date',
    }

    this._sortFunctions = {
      date: function(fileInfos) {
        return fileInfos.slice().reverse();
      },
      title: function(fileInfos) {
        return fileInfos.slice().sort(function(fileInfo1, fileInfo2) {
          const title1 = fileInfo1.metadata ? fileInfo1.metadata.stream.metadata.title.toLowerCase() : fileInfo1.name;
          const title2 = fileInfo2.metadata ? fileInfo2.metadata.stream.metadata.title.toLowerCase() : fileInfo2.name;
          if (title1 < title2) {
            return -1;
          } else if (title1 > title2) {
            return 1;
          } else {
            return 0;
          }
        })
      },
      filename: function(fileInfos) {
        return fileInfos.slice().sort(function({file_name: fileName1}, {file_name: fileName2}) {
          const fileName1Lower = fileName1.toLowerCase();
          const fileName2Lower = fileName2.toLowerCase();
          if (fileName1Lower < fileName2Lower) {
            return -1;
          } else if (fileName2Lower > fileName1Lower) {
            return 1;
          } else {
            return 0;
          }
        })
      },
    }
  }

  handleSortChanged(event) {
    this.setState({
      sortBy: event.target.value,
    })
  }

  render() {
    const {
      handleSortChanged,
      fetching,
      fileInfos,
    } = this.props
    const {
      sortBy,
    } = this.state
    const content = []

    this._sortFunctions[sortBy](fileInfos).forEach(fileInfo => {
      const uri = lbryuri.build({
        contentName: fileInfo.name,
        channelName: fileInfo.channel_name,
      })
      content.push(<FileTile key={uri} uri={uri} hidePrice={true} showEmpty={this.props.fileTileShowEmpty} />)
    })
    return (
      <section className="file-list__header">
        { fetching && <span className="busy-indicator"/> }
        <span className='sort-section'>
          Sort by { ' ' }
          <FormField type="select" onChange={this.handleSortChanged.bind(this)}>
            <option value="date">Date</option>
            <option value="title">Title</option>
            <option value="filename">File name</option>
          </FormField>
        </span>
        {content}
      </section>
    )
  }
}

export default FileList